Dissertations / Theses on the topic 'Saliva'
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Москаленко, Павло Олександрович, Павел Александрович Москаленко, Pavlo Oleksandrovych Moskalenko, Юрій Володимирович Лахтін, Юрий Владимирович Лахтин, Yurii Volodymyrovych Lakhtin, A. A. Levkov, Юрій Владиславович Сміянов, Юрий Владиславович Смиянов, and Yurii Vladyslavovych Smiianov. "Application of saliva crystalloscopy methods in the diagnosis of malignant tumours of salivary glands and Sjögren disease." Thesis, Published by IASHE London, 2015. http://essuir.sumdu.edu.ua/handle/123456789/44378.
Full textCouto, Josà Luciano Pimenta. "Estudo de parÃmetros salivares em portadores de picnodisostose." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6090.
Full textPicnodysostosis (PKND) is a skeletal displasia characterized by short stature, osteosclerosis, acrosteolisis, craniofacial deformities and bone fragility. Approximately 200 cases have been described among different ethnic groups, with an estimated incidence of 1.7: 1.000.000 live births. The use of saliva as a diagnostic tool has advanced exponentially within recent years. Unbalance in the amount and composition of saliva may generate oral diseases such as dental caries and periodontitis, and may also indicate important systemic alterations. This study has aimed to investigate the parameters of human whole saliva in patients with PKND. Our study sample consisted of 4 individuals with PKND (experimental group) and 4 healthy individuals without PKND (control group). Salivary flow rate, pH and protein profile were evaluated in this population. Non stimulated whole saliva was collected and centrifuged. The supernatant was separated and lyophilized and stored at -20ÂC for posterior total protein and bidimensional electroforetic analysis. Statistically significant differences were observed between groups (p<0,05) for the analyzed salivary parameters. When compared to the control group, individuals with PKND presented reduced salivary flow rate, lower pH values, reduced total protein concentration, and protein bands with differentiated expression. The results of this study suggest the existence of a differentiated pattern of salivary composition between groups.
Yuk-lun, Kam. "The efficacy of a novel lubricating system in the management of radiotherapy related xerostomia." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B31981835.
Full textDantas, Aline Maia. "Estudo da relação entre glândulas salivares e doença periodontal em ratos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/42/42136/tde-09022012-142657/.
Full textGingivitis and periodontitis are common infectious periodontal diseases in man, in which periodontal bacteria and their products participate actively to induce local inflammation and systemic effects (eg heart). Knowing that saliva represents the first major barrier to oral infections, this study aimed to: i) to assess bone loss due to induced periodontitis in rats, after intervals of 3, 7 and 14 days, ii) to investigate possible changes in flow (or not stimulated with pilocarpine) and salivary composition in these animals, and iii) evaluate the concentration and expression of markers of oxidative stress and inflammation in the salivary glands and saliva samples, and iv) assess the functional role of salivary gland function in ex vivo production of amylase. For this purpose, male Wistar rats (180-200g) underwent induction of periodontitis by implanting the ligature, and biochemical and inflammatory parameters were assessed. Rats with periodontitis on day 3 when compared to sham group, exhibited a significant increase in salivary flow (stimulated with pilocarpine), production of Ca2+, protein secretion and production of amylase in saliva, as well as increased contents of TBARS in the parotid and amylase released from submandibular glands (GSM). There was also increased expression of mRNA for iNOS and nNOS in GSM. In contrast, rats with periodontitis after 7 days exhibited a reduction in stimulated saliva (not stimulated), production and total protein concentration and secretion of salivary amylase, although the content of serum and salivary TBARS and the activity of MPO in saliva of these animals was high compared to the sham group. There were no significant differences in TBARS content in salivary gland secretion and Ca2+ concentration in saliva, nor on the content of nitrated proteins in samples from these animals GSM. By the 14th day envisioned an increase of NOS activity and Ca2+ dependent mRNA expression of iNOS and nNOS in GSM. Rats with periodontitis, 14 days after induction, exhibited a significant increase in the rate of salivation, concentration and salivary secretion of Ca2+, production and concentration of total protein, salivary amylase and content of TBARS in samples of saliva and salivary glands. Still, there was increased activity of peroxidase / MPO, nitrate concentration in saliva and proteins nitrated in GSM and higher concentration of Th1 / Th2 (IL-4, IL-13 and IL-10) in samples of GSM. We conclude that the experimental induction of periodontal disease in rats, influence the functioning of the salivary glands according to the days of induction, initially stimulating, in a second time and subsequently inhibiting return to baseline levels. After 7 days, is characterized as the ideal time for the expression of an inhibitory effect on the gland function.
Cachucho, Liliana Margarida Sargento. "Biomarcadores de aclimatação na saliva: estudo em vacas leiteiras com diferente potencial leiteiro." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/17555.
Full textSardinha, Daniela Abreu. "Xerostomia e hipofunção das glândulas salivares: fisiopatologia e enquadramento clínico." Master's thesis, [s.n.], 2013. http://hdl.handle.net/10284/5250.
Full textA saliva desempenha múltiplas funções e tem um papel vital na proteção da saúde dos tecidos moles e duros da cavidade oral. A xerostomia é a sensação subjetiva de boca seca, um sintoma que pode ou não estar acompanhado de hipossalivação, descrita como redução do fluxo salivar estimulado ou não estimulado. Os pacientes com redução do fluxo salivar apresentam maior risco de cáries, infeções fúngicas orais, dificuldades na deglutição e alteração do paladar. As principais causas da hipofunção das glândulas salivares e da xerostomia são doenças sistémicas e os medicamentos. O diagnóstico é baseado em métodos simples, como a medição do fluxo salivar estimulado e não estimulado. Sendo que o tratamento da xerostomia é essencialmente realizado tendo em conta a sua causa e é dividido em quatro categorias: prevenção, tratamento sintomático, estimulação local ou tópica e terapias sistémicas ou estimulação sistémica. Cada categoria será aplicada dependendo da função glandular. Quando há alguma preservação da estrutura da GS os estimulantes salivares (estimulação local ou sistémica) são o mais indicado. Quando as GS encontram-se irreversivelmente danificadas a opção é o tratamento paliativo.
Saliva has multiple functions and plays a vital role in protecting the health of hard and soft tissues of the oral cavity. Xerostomia is the subjective sensation of dry mouth, a symptom that may or may not be accompanied by hyposalivation, described as a reduction of unstimulated and stimulated salivary flow. Patients with reduced salivary flow are at increased risk for caries, oral fungal infections, swallowing problems and altered taste. The principal causes of salivary gland hypofunction and xerostomia are systemic diseases and drugs. The diagnosis is based on simple methods, as measuring both unstimulated and stimulated salivary flow rate. Treatment of xerostomia essentially is carried out in regard to the cause and is divided in four main categories: palliative or symptomatic stimulation, local and systemic stimulation and prevention of complications. Which category will be applied, depending on salivary glands function. In cases when there is still some residual salivary function it was shown that saliva stimulans (local or systemic stimulation) is more appropriate. When salivary glands are irreversible damaged palliative treatment is the best option.
Neves, Sandra. "Efeitos da hiperleptinémia na secreção de proteínas salivares." Master's thesis, Universidade de Évora, 2014. http://hdl.handle.net/10174/12228.
Full textCamargo, Tarsila Mendes de 1982. "Caracterização do sistema de dois componentes SptRS de Streptococcus sanguinis com possível papel na viabilidade em saliva humana : Characterization of the component system SptRS of Streptococcus sanguinis with putative role in bacterial viability in human saliva." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288672.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Streptococcus sanguinis é colonizador comensal da superfícies dos dentes e patógeno comum de endocardite bacteriana em seres humanos. A colonização da cavidade oral por S. sanguinis depende, em parte, de interações de superfície bacteriana com componentes adsorvidos na superfície dos dentes (que são principalmente de origem salivar) chamado película adquirida (PA). Além disso, os produtos do metabolismo aeróbio de S. sanguinis, por exemplo, peróxido de hidrogênio, inibe o crescimento de espécies de estreptococos concorrentes e promove a liberação de DNA genômico, um componente da matriz extracelular do biofilme dental. S. sanguinis se adapta fisiologicamente a saliva durante suas fases de colonização na cavidade oral, que provavelmente envolve alterações dinâmicas em seu transcriptoma. Transcriptomas bacterianos são regulados pelos sistemas de dois componentes (SDC), que consistem de uma membrana sensora de histidina quinase (HK) e um regulador de resposta intracelular cognato (RR). A HK sofre autofosforilação sob estímulos específicos e fosforila RR cognato, que por sua vez se liga às regiões reguladoras de genes alvo, induzindo ou reprimindo a transcrição. S. sanguinis SK36 tem um ortólogo de SDC SptRS designado (de Saliva persistência) envolvidos na sobrevivência e persistência na saliva humana em S. pyogenes. O objetivo deste estudo foi investigar o papel do SDC SptRS na biologia de S. sanguinis. Para isso, mutantes knockout de sptR (SKsptR-) e sptS (SKsptS-) foram obtidos a partir da cepa SK36. Mutantes sptRS foram analisados quanto ao crescimento planctônico e biofilme em meio suplementado ou não com saliva humana. Liberação de DNA, produção de peróxido de hidrogênio, autólise e sensibilidade ao stresse oxidativo também foram analisados nestas cepas. Alterações da transcrição dos genes associados a fenótipos observados foram avaliadas por meio de RT - qPCR. Sob aerobiose, mutantes sptRS formaram cadeias muito longas e agregados de cocos. O crescimento mais lento em comparação com SK36 também foi observado. Por outro lado, um aumento significativo (cerca de 2 vezes ) em biomassa do biofilme foram encontrados em mutantes em comparação com SK36 na presença de saliva. Consistentemente, mutantes liberaram 2 a 5 vezes mais DNA ao meio e produziram 2 a 3 vezes mais de H2O2 em comparação com a cepa selvagem. Não foram observadas alterações em autólise induzida por alta temperatura. Os mutantes mostraram um aumento da tolerância ao stresse oxidativo, mas reduções de 1 a 2 logs na contagem de células (ufc / ml ) durante a incubação em saliva. A análise de RT- qPCR revelou que SptRS regula negativamente os genes que codificam as hidrolases mureína (SSA_0094 e cwdP); aumentos de 2,14 e 14,7 vezes nestes genes foram respectivamente observados em mutantes SKsptR-. Além disso, nos mutantes sptRS foram observados aumentos de 15,5 a 27,9 vezes em transcritos do gene spxB, que codifica a oxidase piruvato necessária para a produção de H2O2. Outros genes associados com a produção H2O2 também foram afetados nos mutantes [ackA (aumento de 5,3-9,7 vezes); tpK (aumento de 12,19 vezes)]. Este estudo fornece evidências de que SptRS regula as funções de S. sanguinis de estabelecimento em biofilmes associados à produção de H2O2 e liberação de DNA, e participa da sobrevivência das bactérias na saliva humana
Abstract: Streptococcus sanguinis is commensal colonizer of tooth surfaces and common pathogen of bacterial endocarditis in humans. The colonization of the oral cavity by S. sanguinis depends in part, on bacterial surface interactions with components adsorbed to tooth surfaces (which are primarily of salivary origin) called acquired pellicle (AP). In addition, products of S. sanguinis aerobic metabolism, e.g. hydrogen peroxide, inhibits the growth of competitor streptococcal species and promotes the release of genomic DNA, a component of the extracellular matrix of dental biofilms. S. sanguinis physiological adaptation to saliva during the stages of colonization of the oral cavity, likely involves dynamic changes in its transcriptome. Bacterial transcriptomes are regulated by two-component systems (TCS), which consist of a membrane sensor histidine kinase (HK) and a cognate intracellular response regulator (RR). The HK undergoes autophosphorylation under specific stimuli and phosphorylates the cognate RR, which in turn binds to regulatory regions of target genes, inducing or repressing transcription. S. sanguinis SK36 strain has an orthologue of the TCS designated SptRS (of Saliva persistence) involved in survival and persistence in human saliva in S. pyogenes. The aim of this study was to investigate the role of SptRS TCS in S. sanguinis biology. To that purpose, knockout mutants of sptR (SKsptR-), and sptS (SKsptS-) genes were obtained in strain SK36. SptRS mutants were analyzed regarding to planktonic and biofilm growth in medium supplemented or not with human saliva. DNA release, production of hydrogen peroxide, autolysis and sensitivity to oxidative stress were also analyzed in these strains. Transcriptional changes in genes associated with observed phenotypes were then assessed by RT-qPCR. Under aerobiosis, sptS/R mutants formed extremely long chains and aggregates of cocci. Slower growth compared to SK36 was also observed. On the other hand, significant increases (about 2-fold) in biofilm biomass were found in mutants compared to SK36 in the presence of saliva. Consistently, mutants released 2 to 5-fold more DNA to medium and produced 2 to 3-fold more H2O2 compared to parent strain. No changes were observed in autolysis induced by high temperature. Mutants showed increased tolerance to oxidative stress, but reductions of 1 to 2 logs in cell counts (cfu/ml) during incubation in saliva. RT- qPCR analysis revealed that SptRS negatively regulates genes encoding murein hydrolases (SSA_0094 and cwdP); increases of 2.14 and 14.7-folds in these genes were respectively observed in SKsptR mutants. In addition, 15.5 to 27.9-fold increases in sptR/S mutants were observed in spxB transcripts, which encode pyruvate oxidase required for H2O2 production. Other genes associated with H2O2 production were also affected in mutants [ackA (5.3 to 9.7-fold increases; tpK (12.19-fold increase)]. This study provides evidence that SptRS regulates functions for S. sanguinis establishment in biofilms associated with H2O2 production and DNA release, and participates in bacterial survival in human saliva
Doutorado
Microbiologia e Imunologia
Doutora em Biologia Buco-Dental
Nogueira, Ferrada Florencia María. "Comparación de velocidad de flujo salival, pH salival y concentración de proteínas en saliva entre sujetos con diabetes mellitus tipo 2 compensados y descompensados." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/137621.
Full textIntroducción. La Diabetes Mellitus es una enfermedad metabólica caracterizada por una hiperglicemia crónica causada por la acción o producción deficiente de la insulina. En el curso de esta enfermedad y de acuerdo al grado de descompensación metabólica expresada en valores de hemoglobina glicosilada (HbA1c), surgen complicaciones sistémicas y manifestaciones orales. Dentro de estas últimas, se encuentran las alteraciones de parámetros cuantitativos y cualitativos salivales, afectando la calidad de vida de los pacientes e incrementando la susceptibilidad a desarrollar patologías orales como caries y candidiasis oral. Existe escasa evidencia que relacione características salivales en diabéticos con sus niveles de HbA1c, por lo que el objetivo de este estudio fue comparar la velocidad de flujo salival, pH salival, concentración de proteínas en saliva y presencia de xerostomía entre sujetos con Diabetes Mellitus tipo 2 (DM2) compensados (Hb1Ac < 7%) y descompensados metabólicamente (Hb1Ac ≥ 7%). Metodología. Este trabajo incluyó a 50 voluntarios con DM2, pertenecientes a la Asociación De Diabéticos de Chile (ADICH), de los cuales 25, correspondían a descompensados metabólicamente (grupo experimental) y los otros 25, a compensados (grupo control). Se realizó una ficha clínica que incluía el cuestionario para la xerostomía y se tomaron muestras salivales en las cuales se analizaron la velocidad de flujo salival, pH salival y concentración total de proteínas en saliva. Resultados. La concentración total de proteínas en saliva fue mayor en diabéticos descompensados que en compensados, con diferencias estadísticamente significativas. Por otro lado, para la comparación de velocidad de flujo salival, pH salival y xerostomía, no se encontraron diferencias significativas entre ambos grupos de estudio. Conclusiones. En este trabajo, la concentración total de proteínas salivales fue significativamente mayor en sujetos con DM2 con valores de HbA1c ≥ 7%, en comparación con sujetos con HbA1c < 7%, lo que podría ser un indicador de descompensación metabólica en diabéticos o de disfunción de glándulas salivales. Sin embargo, son necesarios más estudios futuros para esclarecer el verdadero rol de la saliva en el diagnóstico y control de la DM2.
Roy, Kirsty McLiver. "Hepatitis C virus in saliva." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297005.
Full textLopes, Lenita Marangoni 1989. "Fluxo salivar, pH e capacidade tampão da saliva de crianças com linfoma de Hodgkin tratadas com radioterapia : estudo prospectivo." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288100.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: A saliva é um importante fator de proteção contra doenças bucais devido a propriedades como clearence promovido pelo fluxo salivar e manutenção do pH em níveis aceitáveis pela capacidade tampão. Entretanto, inúmeros fatores podem afetar a produção de saliva, podendo resultar em hipossalivação e no sintoma de boca seca, a xerostomia. Estudos mostram que uma das causas da hipossalivação é a radioterapia envolvendo a região de cabeça e pescoço, utilizada no tratamento de câncer. Dentre as neoplasias em crianças que incluem em seus protocolos de tratamento a radioterapia na região cervical, destacamos o Linfoma de Hodgkin, o qual frequentemente acomete cadeias ganglionares cervicais. Sendo assim, o primeiro objetivo do presente estudo foi investigar se a radioterapia causa algum efeito sobre o fluxo, o pH e a capacidade tampão da saliva de crianças com Linfoma de Hodgkin. O segundo objetivo foi avaliar se existe correlação entre as características salivares descritas acima e parâmetros que exprimem a qualidade de vida antes, durante e após o tratamento radioterápico. Para tanto, foi realizada a coleta de saliva estimulada e não estimulada e aplicação do questionário H&N35 a 10 voluntários de 6 a 16 anos, portadores de Linfoma de Hodgkin, antes do início do tratamento (baseline), ao completarem as doses de 1000 e 2000 cGy, e após 1, 2 e 3 meses do final da radioterapia. Como grupo controle, 10 voluntários saudáveis pareados por idade e sexo foram submetidos à única coleta de saliva. O volume de saliva coletada foi dividido pelo tempo de coleta para estimar do fluxo salivar. A saliva coletada foi utilizada para avaliação do pH e da capacidade tampão pelo método da titulação. O questionário foi interpretado de acordo com as recomendações da European Organization for Research and Treatment of Cancer (EORTC). Os resultados do estudo mostraram que em relação ao controle, o fluxo salivar estimulado foi significativamente menor no início do estudo (baseline), bem como após as doses de 1000, 2000 cGy e 1, 2 e 3 meses após o tratamento. Ainda, o fluxo salivar estimulado observado após a dose de 1000 cGy e 1 mês após o tratamento foi significativamente inferior aquele do baseline. O pH da saliva não estimulada diminuiu após 3 meses em relação ao grupo controle, mas não houve diferença entre o pH salivar no baseline e qualquer outro grupo. O pH da saliva estimulada foi menor após 1 e 3 meses, quando comparado ao grupo controle. A capacidade tampão da saliva não estimulada e estimulada foi reduzida após a dose de 2000 cGy. Os voluntários relataram uma maior intensidade de boca seca e dor após as doses de 1000 e 2000 cGy. Além disso, para saliva não estimulada, exceto entre pH e dor após a dose de 2000 cGy, uma correlação significativa foi encontrada entre dor, boca seca e todas as variáveis investigadas em todas as fases. Para saliva estimulada não foi observada correlação apenas entre o pH e a dor após a dose de 2000 cGy e 2 meses após o tratamento. Então, pode-se concluir que o protocolo radioterápico, ao qual os voluntários foram submetidos, produziu alterações na taxa de fluxo salivar e capacidade tampão da saliva; e estas alterações tiveram impacto negativo na qualidade de vida, em relação à intensidade de boca seca e sensação de dor na cavidade bucal da crianças avaliadas
Abstract: Saliva is an important protective factor for oral diseases due to properties such as clearance by salivary flow, and maintenance of pH within acceptable levels by buffer capacity. However, many factors can affect saliva production, which can result in hypossalivation and symptoms of dry mouth, the xerostomia. Studies have shown that one of the causes of hypossalivation is radiotherapy of head and neck used to treat cancer. Among children's neoplasms that include in their treatment protocols the radiotherapy of cervical region, we highlight the Hodgkin's lymphoma, which often affects cervical ganglion. Thus, the first aim of this study was to investigate if the radiotherapy treatment has any effect on the salivary flow rate, pH and buffering capacity of stimulated and unstimulated saliva of children with Hodgkin's lymphoma. The second aim of our study was to evaluate if there is any correlation between these salivary parameters and some areas that express the quality of life before, during and after radiotherapy treatment. To do so, stimulated and unstimulated saliva was collected and the H&N35 questionnaire was applied to 10 children and adolescents aging 6-16 years old, with Hodgkin's lymphoma before the start of treatment (baseline), after the 1000 and 2000 cGy doses were completed, and after 1, 2 and 3 months of the end of the radiotherapy. As a control group, a single saliva collection was performed in 10 healthy children of the same age group. The volume of saliva collected was divided by the time of collection to estimate the salivary flow rate. The collected saliva was used to evaluate the pH and the buffer capacity by the titration method. The questionnaire was interpreted according to recommendations of the European Organization for Research and Treatment of Cancer (EORTC). The results of the study showed that when compared to control group, an decrease unstimulated salivary flow rate was found after the dose of 1000 cGy and after 1 month but no difference among groups was found. Stimulated salivary flow rate was significantly lower at baseline as well as after the doses of 1000, 2000 cGy and 1, 2 and 3 months after treatment when compared to control group. In the same way, a significantly lower stimulated salivary flow rate was observed after the dose of 1000 cGy and 1 month after treatment when compared to baseline. The pH of unstimulated saliva decreased after 3 months as compared to control group but no difference was found among salivary pH at baseline and any other group. The pH of stimulated saliva was lower after 1 and 3 months when compared to control group. The buffering capacity of unstimulated and stimulated saliva was reduced after the dose of 2000 cGy. The volunteers reported a greater intensity of dry mouth and pain after doses of 1000 and 2000 cGy. Moreover, for unstimulated saliva, except for the absence of correlation between pH and pain after the dose of 2000 cGy, a significant correlation was found among pain, dry mouth and all investigated variables in all phases. For stimulated saliva no correlation between pH and pain after the dose of 2000 cGy and 2 months after treatment could be detected. Then, it can be concluded that the radiotherapic protocol, to which the volunteers were submitted, produced changes in salivary flow rate and buffering capacity of saliva and that these changes negatively impacted the quality of life regarding the intensity of dry mouth and pain sensation in the oral cavity of evaluated children
Mestrado
Odontopediatria
Mestra em Odontologia
Benites, Bernar Monteiro. "Determinação da presença de 5-FU na saliva de hamsters que receberam o quimioterápico pela técnica de Cromatografia Líquida de Alta Eficiência." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/23/23140/tde-19012016-155330/.
Full textVarious analytical methods for testing the chemotherapeutic agent 5-fluorouracil (5-FU) in biological fluids of humans and animals have been reported previously. Whereas the administration of 5-FU alter in any way the morphology and function of the salivary glands, and that the presence of chemotherapy in the oral mucosa can lead to some oral complications, this study aimed to determine the presence of 5-FU in chemotherapy treated hamsters saliva by Liquid Chromatography High Performance (HPLC), since this animal model is used in studies of oral mucositis and gland hypofunction induced by 5-FU. Twelve animals were divided into 4 groups: intraperitoneally pilocarpine (CP), pilocarpine + isoproterenol (CPI) and the chemotherapy of the vehicle, and the QP and QPI groups where the animals were, respectively, the same secretagogues listed above and 5-FU chemotherapy. After administration secretagogue, the saliva from all animals was collected for a period of 60 min. Then the saliva was frozen at -80 ºC for subsequent determination of chemotherapy by HPLC. After analysis of chromatograms, and based on the results obtained, it was possible to identify the presence of 5-FU in Hamsters saliva samples that received intraperitoneal chemotherapy via the technique of HPLC.
Souza, Fernando Luiz de. "Determinação dos fatores grupo-especificos na saliva humana atraves de testes de inibição da hemaglutinação." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290719.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Através de estudos realizados, sabe-se que existem dois grupos de indivíduos, no que diz respeito à existência de fatores grupo-específicos na saliva humana. O primeiro grupo denominado secretor constitui aproximadamente 80% e o segundo grupo constitui aproximedemente 20% da população. No presente trabalho, estão sendo utilizadas 200 amostras de saliva humana "in natura", coletadas de alunos dos cursos de graduação da FOP- Unicamp, EFOA-Alfenas e doadores voluntários, distribuidas em quatro lotes distintos. As amostras foram submetidas ao processo de desnaturação, isto é, ao banhomaria durante 20 minutos a fim de se eliminar outras proteínas não interessantes nestes exames. Após a centrifugação da saliva, retirou-se o sobrenadante para a' realização dos testes de inibição da hemaglutinação. Os resultados finais demonstram uma pequena diferença em relação aos autores consultados, demonstrando que a determinação dos fatores grupo-específicos na saliva apresen.ta grande' interesse pericial, na possibilidade de se determinar a existência ou não de vínculo genético entre ascedentes e descendentes, uma vez que, os secretores apresentam-se em caráter dominante e os não secretores com caráter recessivo
Abstract: Not informed.
Mestrado
Odontologia Legal e Deontologia
Mestre em Ciências
Aidar, Marisi 1958. "Correlação entre mudanças na expressão e atividade da enzima anidrase carbônica VI e polimorfismos genéticos neste gene (CA6)." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290005.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: As anidrases carbônicas mantém o PH fisiológico catalisando a hidratação do dióxido de carbono na reação...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital
Abstract: The carbonic anhydrases maintain the physiological pH catalyzing the hydration of carbon dioxide in the reaction ...Note: The complete abstract is available with the full electronic document
Doutorado
Histologia e Embriologia
Doutor em Biologia Buco-Dental
Pini, Núbia Inocencya Pavesi 1987. "In vitro and in situ evaluation of microabrasion technique on enamel microhardness and morphology = Avaliação in vitro e in situ da técnica de microabrasão sobre a microdureza e morfologia do esmalte dental." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290365.
Full textTexto em português e inglês
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Objetivo: Avaliar, in vitro, a influência dos ácidos utilizados para microabrasão e, in situ, o efeito do tempo de contato com a saliva na microdureza e morfologia do esmalte abrasionado. Metodologia: In vitro: Setenta blocos dentais bovinos foram divididos em 7 grupos (n=10). Os grupos experimentais foram tratados com aplicação ativa/passiva dos ácidos H3PO4 35% (E1/E2) ou HCl 6,6% (E3/E4); e controles, tratados com microabrasão com H3PO4+pedra-pomes (C5), HCl+silica (C6) ou nenhum tratamento (C7). In situ: Nove grupos (n=19) de blocos dentais bovinos foram divididos de acordo com o tratamento e o tempo de exposição salivar, sendo 4 grupos tratados com H3PO4+pedra-pomes, 4 com HCl+sílica e 1 grupo controle. Os grupos tratados foram subdivididos em: sem exposição salivar, 1 hora, 24 horas ou 7 dias de exposição em ambiente intrabucal. A microdureza superficial (SMH) foi avaliada antes e após a microabrasão, e após exposição salivar (in situ). A microdureza subsuperficial (CSMH - 10, 25, 50 e 75 ?m) foi analisada após a microabrasão (in vitro) e após a exposição salivar (in situ). Espécimes representativos foram selecionados para a avaliação da morfologia do esmalte por meio da microscopia confocal de varredura a laser (MCVL - in vitro) e por microscopia eletrônica de varredura (MEV - in situ). Para a análise estatística foi realizada análise de variância para medidas repetidas (Proc Mixed), e os testes de Tukey-Kramer e Dunnet (SMH) e ANOVA (parcelas subdivididas) e Tukey-Kramer (CSMH - in situ) (p<0.05). Resultados: In vitro: Não foram encontradas diferenças entre as análises pré e pós-microabrasão entre os grupos controles para SMH. Entre os grupos experimentais, a aplicação ativa demonstrou os maiores valores de SMH, sem diferença entre os ácidos, com a mesma forma de aplicação. A maioria dos grupos apresentou redução do valor de CSMH conforme aumento da profundidade, com diferenças entre os grupos com microabrasão (C5 e C6) e o C7; e entre todos os grupos experimentais e o C7. Comparando a aplicação dos ácidos, a aplicação ativa do H3PO4 (E1) mostrou maior CSMH com diferença estatística em relação ao HCl (E3). A MCVL demonstrou diferentes padrões de condicionamento para cada grupo. In situ: Para as análises de SMH, todos os grupos tratados apresentaram redução na microdureza, com diferenças em relação ao controle e a leitura inicial. Após exposição salivar, os resultados demonstraram que o tratamento com HCl+sílica foi mais propenso à remineralização, já que, com 1 hora foi verificado aumento na SMH, com diferença significante em relação à análise pós-microabrasão. Apenas o tratamento com HCl+sílica foi eficiente em reestabelecer tal propriedade em relação ao controle. A análise de CSMH confirmou a maior capacidade de remineralização do esmalte tratado com HCl+sílica, uma vez que após 7 dias de exposição salivar, os valores de microdureza foram restabelecidos para as camadas mais superficiais do esmalte (10 e 25 ?m). A MEV demonstrou o efeito remineralizador da saliva para ambos os tratamentos. Conclusões: Os ácidos utilizados para microabrasão apresentaram alto poder erosivo quando aplicados individualmente. O tratamento com HCl+sílica resultou em uma superfície de esmalte mais propensa à remineralização
Abstract: Objective: To evaluate, in vitro, the effect of acids used in microabrasion on enamel microhardness, and, in situ, the effects of remineralizing time on enamel surface after microabrasion. Methods: In vitro: Seven groups (n=10) of enamel blocks from bovine incisors were divided in: Experimental groups treated by active/passive application of 35% H3PO4 (E1/E2) or 6.6% HCl (E3/E4); and control groups treated by microabrasion with H3PO4+pumice (C5), HCl+silica (C6), or no treatment (C7). In situ: Nine groups (n=19) of same specimens were divided in according to microabrasion and salivary exposition being 1 control (no treatment) and 4 groups with microabrasion using 35% H3PO4+pumice and 4 groups using 6.6% +silica. One group of each treatment was submitted to 4 frames of salivary exposition, being without exposition and with 1 hour, 24 hours or 7 days of presence on in situ regimen. Surface microhardness (SMH) was evaluated before and after microabrasion, and after salivary exposition (in situ). Cross-sectional microhardness (CSMH) was analyzed after microabrasion (in vitro) and after salivary exposition (in situ). For confocal laser scanning microscopy (CLSM - in vitro) and scanning electron microscopy (SEM - in situ), representative specimens group were selected. Statistical analysis used Proc Mixed, Tukey-Kramer and Dunnet tests (SMH) e ANOVA (subdivided parcels) and Tukey-Kramer tests (CSMH - in situ) (p<0.05). Results: In vitro: For SMH, it was not found statistically differences between the control groups after treatment. Active application resulted in significantly higher microhardness results than passive application, with no difference between acids. For most groups, the CSMH decreased as the depth increased, with differences between the groups treated with microabrasion (C5 and C6) and C7; and between all of experimental groups and C7. A significantly higher mean CSMH result was obtained with active application of H3PO4 compared to HCl. CLSM revealed the conditioning pattern for each group. In situ: For SMH, the groups treated with microabrasion presented reducing in mineral content, with statistical difference in relation to the control and to the initial analysis. The treatment HCl+silica presented lower reduction and were statistically different from the treatment with H3PO4+pumice. After salivary exposition SMH results revealed that surface treated with HCl+silica was more prone to remineralizing effect of saliva, once it was verified since with 1 hour of presence in in situ regimen, with significant differences between the treatments after 7 days of salivary exposition. Just for SMH, the HCl+silica reached values obtained in control group. CSMH analysis showed that 7 days of salivary exposition were efficient in reestablish de values for the outer layers (10 e 25 ?m) of enamel treated with HCl+silica. SEM analysis presented the remineralizing effect in the course of the time. Conclusions: Acids used for enamel microabrasion presented a higher erosive action when solely applicated. Data suggested that enamel surface treated with HCl+silica presented more susceptibility for remineralizing action of saliva than that treated with phosphoric acid and pumice
Mestrado
Dentística
Mestra em Clínica Odontológica
Leung, Wing-hang Vitus. "The calcium phosphate system in saliva-like media /." [Hong Kong] : University of Hong Kong, 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12555769.
Full textKam, Yuk-lun, and 甘玉麟. "The efficacy of a novel lubricating system in the management of radiotherapy related xerostomia." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31981835.
Full textSmith, Stuart Richard. "The surface rheology of human saliva." Thesis, University College London (University of London), 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397936.
Full textGordi, Toufigh. "Clinical Pharmacokinetics of the Antimalarial Artemisinin Based on Saliva Sampling." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-4956-5/.
Full textCosta, Lilian Fraga [UNESP]. "Estudo da atividade salivar em ratos espontaneamente hipertensos (SHR)." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/95449.
Full textConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A saliva mantém a integridade e saúde do ambiente bucal. Alterações em sua composição e atividade, associadas à hipertensão, poderiam favorecer aparecimento de patologias sistêmicas e na cavidade bucal. O objetivo deste estudo foi avaliar parâmetros bioquímicos da saliva de ratos espontaneamente hipertensos (SHR) aos 30 dias de vida (30d) e aos 3 meses (3M). Nos experimentos foram utilizados ratos machos Wistar e espontaneamente hipertensos (SHR), aos 30 dias e 3 meses de vida. A medida da pressão arterial sistólica foi realizada pelo método indireto de pletismografia de cauda, com a utilização de pletismógrafo adaptado para medidas em ratos. Para a coleta da saliva os animais, sobre efeito de anestesia e estimulados com nitrato de pilocarpina, foram colocados em prancha inclinada e a saliva foi coletada em beckers, mantidos em gelo, por 15 minutos. Para a medida do pH foi utilizado eletrodo específico acoplado ao pHmetro calibrado, a capacidade tamponante foi calculada de acordo com o volume de ácido lático utilizado para reduzir o pH da amostra até 4. As concentrações de fluoreto ([F-]) e íons cálcio ([Ca++]) foram determinadas com eletrodos específicos e microeletrodos de referência acoplados a analisadores iônicos. A determinação da concentração de proteínas totais foi realizada pelo método de Lowry e a atividade da amilase salivar foi medida através de método cinético,utilizando kit comercial. A dosagem de IgA foi feita através da leitura de absorbância pelo espectrofotômetro, através kit comercial. O fluxo salivar estimulado foi menor nos ratos hipertensos de 3 meses, quando comparado aos ratos normotensos Wistar (SHR: 0,015±0.002mL/min/100g; W: 0,025±0,002mL/min/100g). O pH salivar está aumentado no grupo dos SHR de 3 meses (8,3±0,06) em relação aos ratos...
Saliva plays an important role in the maintenance of a healthy oral environment. Hypertension and aging could interfere with salivary activity, leading to systemic and oral diseases. The aim of this study was to evaluate whether the effects of maternal hypertension on salivary activity of SHR pups are carried to the animal’s adult life. The study was conducted employing 30- day-old (30d) male pups of spontaneously hypertensive rats (SHR) and normotensive Wistar rats (W); and 3 months-old male (3M) SHR and Wistar rats. The systolic blood pressure of 3 months-old male SHR and Wistar rats and female SHR and Wistar rats before mating was recorded by indirect tail-cuff plethysmography. Thirty-day-old (pups) and 3-months-old (young) male rats, after a 12-hour fasting, were anesthetized with xylazine and ketamine. The salivary flow (SF) was stimulated by pilocarpine nitrate. Saliva collection was performed according to Bernardes’ method. Immediately after the saliva was collected, the salivary pH was measured with specific electrode connected to pHmetro priory calibrated. The salivary buffer capacity was calculated according to the volume of lactic acid (0,1 mol/L) spent to reduce the salivary pH to 4,0. The saliva protein concentration was determined using the Lowry method, and salivary amylase activity was measured using the kinetic method. The concentration of fluoride ([F-]) and calcium ([Ca++]) was measured using specific electrode connected to a digital ion-analyzer previously calibrated with standard solutions. Results: The salivary flow of 3 months old SHR was lower than the normotensive rats (SHR: 0,015±0.002mL/min/100g; W: 0,025±0,002mL/min/100g). pH was higher in 3 months old SHR group (8,3±0,06) when compared to normotensive rats (7,9±0.0,09) at the same age; between the pups there was no difference in pH... (Complete abstract, click electronic address below)
Fonseca, IÃda Maria Rocha Lima Vieira da. "AvaliaÃÃo da concentraÃÃo de proteÃnas totais na saliva humana frente a diferentes protocolos de tratamento da saliva." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15415.
Full textA necessidade de preservar a estabilidade da saliva durante e/ou depois da coleta, tem sido considerado um fator que pode influenciar os resultados obtidos na anÃlise desse fluido, comprometendo a confiabilidade e reprodutibilidade de tais mÃtodos analÃticos. Os principais desafios relacionados à preservaÃÃo da saliva referem-se à complexidade da sua composiÃÃo e da sua elevada atividade proteolÃtica inerente. Consequentemente, coleta e armazenamento da saliva exigem precauÃÃes especiais para preservaÃÃo de seus componentes. O presente estudo se propÃs a avaliar a concentraÃÃo proteica de amostras de saliva total de dez voluntÃrios adultos, saudÃveis, com idades variando de 23 a 65 anos, com mÃdia de 31 anos submetidas a alteraÃÃes metodolÃgicas no preparo prÃ-analÃtico da amostra. ApÃs coletadas, os fluxos salivares foram calculados e as amostras de saliva de cada indivÃduo foram fracionadas e divididas em seis diferentes grupos, onde cada um desses grupos correspondeu a um tipo diferente de preparo prÃ-analÃtico da amostra. Os grupos foram conforme segue: G1- centrifugaÃÃo imediata, inibidor ausente, temperatura ambiente por 24 horas; G2- centrifugaÃÃo imediata, inibidor ausente, -80oC por 30 dias; G3- centrifugaÃÃo imediata, inibidor no ato da coleta, -80oC por 30 dias; G4- centrifugaÃÃo imediata, inibidor no ato da anÃlise, -80oC por 30 dias; G5- centrifugaÃÃo apÃs 30 dias, inibidor ausente, -80oC por 30 dias; G6- centrifugaÃÃo apÃs 30 dias, inibidor no ato da anÃlise, -80oC por 30 dias. As concentraÃÃes de proteÃnas totais foram avaliadas pelo mÃtodo do Ãcido bicinconÃnico, em duplicatas. ApÃs anÃlise a concentraÃÃo de proteÃnas totais em cada grupo foi estatisticamente correlacionada pelos testes de Pearson e Spearman, e comparaÃÃes feitas realizadas por meio do teste ANOVA para medidas repetidas (p<0.05). As concentraÃÃes mÃdias de proteÃnas totais demonstraram uma correlaÃÃo negativa significativa com o fluxo salivar em G1 (P= 0,020), G4 (P= 0,027) e G5 (P= 0,05). ProteÃnas totais e idade sà demonstraram correlaÃÃo significativa em G3 (P= 0,01). As concentraÃÃes de proteÃnas totais mÃdias nÃo diferiram de forma significante entre os grupos, F(5,45)= 1,132, P= 0,358. Esses resultados foram, tambÃm, observados ao se comparar as mÃdias de proteÃnas totais com base no fluxo salivar dos voluntÃrios, F(5,45) = 2,068, P= 0,087. Em conclusÃo, as alteraÃÃes metodolÃgicas ora propostas no tratamento das amostras de saliva nÃo redundaram em alteraÃÃes quantitativas significantes nas concentraÃÃes de proteÃnas totais presentes nesse fluido.
Fonseca, Iêda Maria Rocha Lima Vieira da. "Avaliação da concentração de proteínas totais na saliva humana frente a diferentes protocolos de tratamento da saliva." reponame:Repositório Institucional da UFC, 2015. http://www.repositorio.ufc.br/handle/riufc/14015.
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The need to preserve the stability of saliva samples during and/or after collection has been considered a factor that might influence its analytical results, compromising the reliability and reproducibility of these analytical methods. The main challenges related to saliva preservation include the complexity of saliva composition, and its inherent elevated proteolitic activity. Thus, collection and storage of saliva requires specific precautions to preserve its components. The present study aimed to evaluate the protein concentration of saliva samples obtained from 10 healthy adults, aged 23 – 65 years, with a mean age of 31 years, subject to different pre-analytical sample preparation. Following collection, the salivary flow rate was calculated, and saliva samples from each volunteer were fractioned and divided in six different groups, in which each of these groups corresponded to a different type of pre-analytical sample preparation. The groups were as follows: G1- immediate centrifugation, no addition of protease inhibitor, room temperature during 24 hours; G2- immediate centrifugation, no addition of protease inhibitor, -80oC during 30 days; G3- immediate centrifugation, protease inhibitor added during collection, -80oC during 30 days; G4- immediate centrifugation, protease inhibitor added during analysis, -80oC during 30 days; G5- centrifugation 30 days after collection, no addition of protease inhibitor, -80oC during 30 days; G6- centrifugation 30 days after collection, protease inhibitor added during analysis, -80oC during 30 days. Total protein concentration was analyzed in duplicates, through the bicinchoninic acid assay. After analysis, the total protein concentration in each group was statistically correlated through Pearson and Spearman correlation tests and compared using repeated measure ANOVA (p<0.05). The mean total protein concentrations showed a negative correlation with salivary flow rate in G1 (P= 0,020), G4 (P= 0,027) and G5 (P= 0,05). Total protein concentration and age were only statistically correlated in G3 (P= 0,01). The mean total protein concentrations did not significantly differ between groups, F(5,45)= 1,132, P= 0,358. These results were also observed when comparing the mean total protein concentrations normalized by each individual’s salivary flow rate, F(5,45) = 2,068, P= 0,087. In conclusion, the methodological alterations proposed for the preparation of saliva samples before analysis did not generate significant quantitative alterations in total protein concentration within these samples.
A necessidade de preservar a estabilidade da saliva durante e/ou depois da coleta, tem sido considerado um fator que pode influenciar os resultados obtidos na análise desse fluido, comprometendo a confiabilidade e reprodutibilidade de tais métodos analíticos. Os principais desafios relacionados à preservação da saliva referem-se à complexidade da sua composição e da sua elevada atividade proteolítica inerente. Consequentemente, coleta e armazenamento da saliva exigem precauções especiais para preservação de seus componentes. O presente estudo se propôs a avaliar a concentração proteica de amostras de saliva total de dez voluntários adultos, saudáveis, com idades variando de 23 a 65 anos, com média de 31 anos submetidas a alterações metodológicas no preparo pré-analítico da amostra. Após coletadas, os fluxos salivares foram calculados e as amostras de saliva de cada indivíduo foram fracionadas e divididas em seis diferentes grupos, onde cada um desses grupos correspondeu a um tipo diferente de preparo pré-analítico da amostra. Os grupos foram conforme segue: G1- centrifugação imediata, inibidor ausente, temperatura ambiente por 24 horas; G2- centrifugação imediata, inibidor ausente, -80oC por 30 dias; G3- centrifugação imediata, inibidor no ato da coleta, -80oC por 30 dias; G4- centrifugação imediata, inibidor no ato da análise, -80oC por 30 dias; G5- centrifugação após 30 dias, inibidor ausente, -80oC por 30 dias; G6- centrifugação após 30 dias, inibidor no ato da análise, -80oC por 30 dias. As concentrações de proteínas totais foram avaliadas pelo método do ácido bicinconínico, em duplicatas. Após análise a concentração de proteínas totais em cada grupo foi estatisticamente correlacionada pelos testes de Pearson e Spearman, e comparações feitas realizadas por meio do teste ANOVA para medidas repetidas (p<0.05). As concentrações médias de proteínas totais demonstraram uma correlação negativa significativa com o fluxo salivar em G1 (P= 0,020), G4 (P= 0,027) e G5 (P= 0,05). Proteínas totais e idade só demonstraram correlação significativa em G3 (P= 0,01). As concentrações de proteínas totais médias não diferiram de forma significante entre os grupos, F(5,45)= 1,132, P= 0,358. Esses resultados foram, também, observados ao se comparar as médias de proteínas totais com base no fluxo salivar dos voluntários, F(5,45) = 2,068, P= 0,087. Em conclusão, as alterações metodológicas ora propostas no tratamento das amostras de saliva não redundaram em alterações quantitativas significantes nas concentrações de proteínas totais presentes nesse fluido.
Leite, Mariana Ferreira. ""Estudo temporal do efeito da administração de tungstato de sódio sobre alguns parâmetros de glândulas salivares e saliva de ratas diabéticas"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/23/23140/tde-28082006-183554/.
Full textThe aim of study was evaluate the effect of sodium tungstate administration (2mg/ml) on some parameters of parotid, submandibular and pilocarpine/isoproterenol stimulated saliva of streptozotocin induced-diabetes, during six weeks. The groups were divided in untreated control (C), treated control (CT), untreated diabetic (D) and treated diabetic (DT). The parameters studied were energetic metabolism, proteic composition of glands and saliva, besides the protein secretion pathway. In the energetic metabolism were determinated hexokinase, phosphofructokinase-1, pyruvate kinase, glycose-6-phosphate dehydrogenase and lactate dehydrogenase activities. Were evaluated the total protein concentration, amylase and peroxidase activities and free and total sialic acid content on saliva and salivary glands. The protein secretion pathway was studied by evaluation of expression of protein kinase C by western blot. The results obtained confirm the tungstate potential as hypoglycemic, as well as its action in the polifagia, polidipsia and body and glandular weight control. The glycogen concentration suffered an increment in the diabetic group and the tungstate treatment potentialized the increase in the salivary glands. Parotid glands suffered an increased in some parameters of glycolitic pathway and its protein composition in the initial weeks of study, with normalization in the end of experiment. The tungstate was effective in the control of peroxidase activity in salivary glands, but few effects on the other parameters. Diabetic animals presented an increased of total protein concentration in saliva, but no difference was observed in the amylase and peroxidase activities. Sodium tungstate caused an increased in the total protein concentration and a reduction on amylase activity of saliva in the CT and DT groups. Submandibular gland of diabetic rats suffered stimulation in the active and inactive PKC expression after one week and alteration in the isoforms profile of enzyme. Sodium tungstate potencialized this increased. Conclusion: In this study, was not observed effect of sodium tungstate on energetic metabolism of parotid and submandibular, showing that this compound does not alter the metabolism in the peripheral tissue as salivary glands. The tungstate acts on peroxidase activity, this show the possible action of this compound in the antioxidant system. Sodium tungstate stimulates the protein secretion pathway in the salivary glands.
Gadour, Noha. "The effect of cigarette smoking on whole stimulated salivary flow rate and pH." Thesis, University of the Western Cape, 2016. http://hdl.handle.net/11394/5509.
Full textIntroduction: Saliva is a significant biological fluid involved in the maintenance of good oral health. Cigarette smoking exerts detrimental effects on oral health and has been shown to affect saliva, but with no consensus regarding its effect on the quantity (flow rate) and quality (pH) of the saliva. Aim: To assess the effect of cigarette smoking on the flow rate and pH of whole stimulated saliva. Method: A case control study was conducted using patients who presented at the UWC Oral Health Centre patient sifting/waiting area. The patients who agreed to participate were assessed for inclusion into the study until the sample size was (n=60), stratified by smoking (n=30) and non-smoking (n=30). Stimulated saliva samples were collected in specimen jars by asking patients to chew a sterilized rubber band for 5 minutes and spit the contents into the specimen jar provided at 1 minute intervals. The specimens were transported to the laboratory within 30 minutes to measure the salivary quantity and pH. Results: No statistically significant difference in the salivary flow rates was found between smokers and non smokers (p=0.5273). Smokers showed a statistically significant decrease in their pH compared to non smokers (p=0.028). Conclusion: Cigarette smoking reduces the salivary pH, thereby producing an acidic environment.
Santos, Talmir Augusto Faria Brisola dos. "Efeito da lesão eletrolítica do órgão subfornicial sobre os padrões cardiovasculares e salivatórios em ratos." Universidade de Taubaté, 2009. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=414.
Full textHypothesis of the study: Hypothesis of the study: The present work was developed from the hypothesis that exists a relation enters the subfornical agency of rats (OSF) and the flow, protein and electrolyte content of the saliva, blood pressure and heart rate. Proposition: Objective of this study was to investigate the possible relation between the subfornical agency (OSF) and the flow, content protein and electrolyte of the saliva, blood pressure and heart rate in rats.Methodology: For the development of the study, (20) twenty adult male rats of the race Wistar (Rattus norvegicus var. albinus), weighing between two hundred and fifty and three hundred grams by means of gradual experimentation of phase 0 (F0) until the III phase (FIII); The twenty animals had passed for the salivary stimulation (F0 and FI), later for the cannulation of the OSF- fictitious injury (FII) and later for the electrolyte injury (FIII), With the injury in the OSF, allowed to inquire the participation of the cellular bodies and staple fibres present in the regulatory region of the salivary secretion , salivary flow , protein and electrolyte content of the saliva and the changes in the cardiovascular standards. For efficacy of the injury in the OSF, (FIII) a stainless steel electrode with 0.5mm of tip diameter, without isolation, was introduced in the area of the OSF for the cannula previously located in (FII). In the fifth day of the postoperative period, the salivary flow was stimulated with use of the pilocarpine injected intraperitoneally (IP) in all the phases and the animals of (FI) used ones as reference in relation to the fictitious and electrolyte injured ones considered Phase III. At all stages of the experiment, we determined the protein and electrolyte content of saliva, and blood pressure patterns and cardiovascular. Results: The results had been presented as average and error average standard. For evaluation of the interaction between factors (injury/drug/effect) the test of Newman was used posthoc (p< 0,05). Was evidenced relation of injury of OSF (FIII) with cardiovascular standards , demonstrating effect hypertensive of pilocarpine (FII) (32 (6mmHg) in relation to (FIII) (9 (4mmHg), increase of Heart Rate(F0 and FII) (310 (18bpm) and significant reduction of the FC in (FIII) (233 (23bpm) (p< 0,05) With regard to the salivary flow had reduction in (FIII) in relation to (FI and FII) (177 (17mg/7min), (501 (24mg/7min) respectively.Conclusions: The OSF is closely related to changes in salivary flow, secretion, protein and electrolyte content of saliva and cardiovascular changes in rats.
Ramos, Lara Maria Alencar 1985. "Expressão de SPLUNC na saliva de pacientes submetidos à quimioterapia = SPLUNC expression in saliva of patients undergoing chemotherapy." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287863.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: A quimioterapia é um dos tratamentos utilizados para a cura do câncer, e têm como princípio o uso de drogas que alteram o metabolismo das células neoplásicas levando a morte celular. Apesar dos benefícios do tratamento quimioterápico, as drogas também afetam células normais e geram efeitos colaterais que prejudicam diretamente a qualidade de vida dos pacientes. Tais efeitos na cavidade oral podem ser classificados como agudos (mucosite, hipossalivação, candidose, herpes) ocorrem durante o tratamento, e tardios (hipossalivação) ocorrem após a conclusão do tratamento. A mucosite é o efeito colateral agudo mais importante, e causa principalmente dor e disfagia. Além da alteração na quantidade da saliva os quimioterápicos também alteram os componentes da mesma, predispondo os tecidos orais a alguns efeitos secundários. As proteínas SPLUNC (short palate, lung and nasal epithelium clone) foram identificadas em glândulas salivares, saliva, fluídos das vias aéreas e outros tecidos, com uma possível participação no sistema imune inato dessas regiões. O objetivo desse estudo foi avaliar a correlação entre a expressão das proteínas SPLUNC1 e SPLUNC2A com a presença de efeitos colaterais como mucosite e hipossalivação durante a quimioterapia, assim como a quantificação dessas proteínas antes, durante e após o tratamento. Foram realizadas três coletas de saliva total em 20 pacientes saudáveis, 20 pacientes submetidos à quimioterapia convencional e em 15 pacientes submetidos a regimes de condicionamento prévios ao transplante autólogo de células tronco hematopoiéticas e as proteínas foram avaliadas por meio de western blotting. Foi observada uma significativa mudança na qualidade da saliva durante a quimioterapia, caracterizada pelo aumento na expressão de SPLUNC1, mas não foi comprovado que essa variação esteja associada ao agravamento da mucosite e hipossalivação
Abstract: Chemotherapy is one of the treatments used to cure cancer, and have as a principle the use of drugs that alter the metabolism of neoplastic cells leading to cell death. Despite of the benefits of chemotherapy, the drugs also affect normal cells and cause side effects that directly affect the quality of life of patients. Such effects in the oral cavity can be classified as acute (mucositis, hyposalivation, candidosis, herpes) occur during the treatment, and late (hyposalivation) occur after completion of treatment. Mucositis is the most important acute side effect, and mainly causes pain and dysphagia. Besides the change in the amount of saliva, chemotherapy also alters the saliva composition, predisposing oral tissues to some collateral effects. Proteins SPLUNC (short palate, lung and nasal epithelium clone) were identified in salivary glands, saliva, fluid from the airways and other tissues, with a possible role in the innate immune system in these regions. The aim of this study was to evaluate the correlation between the expression of proteins SPLUNC1 and SPLUNC2A with the presence of side effects such as mucositis and hyposalivation during chemotherapy, as well as the quantification of these proteins before, during and after treatment. Were performed three collections of whole saliva in 20 healthy subjects, 20 patients undergoing conventional chemotherapy and 15 patients undergoing conditioning regimens prior to autologous hematopoietic stem cell transplantation and proteins were evaluated by western blotting. We observed a significant change in the quality of saliva during chemotherapy, characterized by increased expression of SPLUNC1, but it was not observed any association with worsening of hyposalivation and mucositis
Doutorado
Patologia
Doutora em Estomatopatologia
Clements, Andrea D., C. Richard Parker, Wallace E. Jr Dixon, and Brenda Salley. "Marshmallows Used as Saliva Stimulant Do Not Affect Cortisol Concentrations: Finally a Palatable Alternative for Toddler Saliva Collection." Digital Commons @ East Tennessee State University, 2007. https://doi.org/10.1002/dev.20238.
Full textEliasson, Lars. "On minor salivary gland secretion /." Göteborg : Department of Cariology, Institute of Odontology, Sahlgrenska Academy at Göteborg University, 2006. http://hdl.handle.net/2077/712.
Full textFunegård, Ulrika. "Fractionated irradiation of salivary glands : loss and protection of function." Doctoral thesis, Umeå universitet, Kardiologi, 1995. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100594.
Full textS. 1-82: sammanfattning, s. 85-152: 6 uppsatser
digitalisering@umu
Amaral, Ãrico Sucupira. "Ãnalise do perfil de proteÃnas salivares de crianÃas com sobrepeso e obesidade do instituto da primeira infÃncia â iprede no estado cearÃ." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14667.
Full textDomäng, Markus, and Nargis Nasiri. "Fluoride Levels in Saliva after Tea Intake." Thesis, Umeå universitet, Tandläkarutbildning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-98829.
Full text梁永鏗 and Wing-hang Vitus Leung. "The calcium phosphate system in saliva-like media." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B30425827.
Full textBarberio, Gabriel Salles. "Identificação do biomarcador NS1 na saliva como diagnóstico da dengue." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/25/25145/tde-07112013-105903/.
Full textThis study brings a literature review about the current dengue status worldwide and in Brazil followed by a systematic review that highlights the dengue diagnosis through saliva. A prospective study was also made, which evaluated the dengue virus infection diagnosis accuracy through the NS1 antigen detection in saliva samples using ELISA assays. The NS1-ELISA results in saliva were compared to the IgM-ELISA and IgG-ELISA serology. A total of 44 saliva samples were obtained from November 2012 to February 2013. The results showed that de NS1-ELISA presented a sensibility of 0.73, specificity of 0.94, Positive Predictive Value of 0.95, Negative Predictive Value of 0.70, Positive Likelihood Ratio of 13.15, Negative Likelihood Ratio of 0.28. Having these findings in mind, it is possible to suggest that the NS1 detection in saliva may be an important diagnostic tool in special cases, such as people that fear needles, with blood dyscrasias, babies, children, as well as to quickly monitor epidemics and their dissemination.
Daruge, Junior Eduardo 1960. "Interação dos sistemas ABO, Lewis e fatores grupo-especificos da saliva e sua importancia pericial." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288748.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Até a presente data, vários trabalhos foram realizados no sentido de investigar a existência ou não de uma interação entre os grupos sanguíneos do Sistema ABO, os fenotipos do Sistema Lewis e os fatores grupo-específicos secretados ou não pela saliva humana. Neste trabalho, utilizamos amostras de sangue e de saliva de 60 indivíduos que compareceram na Faculdade de Odontologia de Piracicaba-UNICAMP, para se submeterem a exames de investigação de paternidade por determinação judicial. Após a utilização das referidas amostras, o restante do material foi empregado neste experimento. A partir das amostras de suspensão de hemácias foram tipados os antígenos do Sistema ABO, isto é, os tipos sanguíneos A, B, AB e °, os Fatores Rh positivo e negativo, os fenótipos do Sistema Lewis (Lea e Leb) e a substância H, utilizando-se os soros Anti-A, Anti-B, Anti-Lea, Anti-Leb e soro de Lectina Anti-H, todos adquiridos da Biotest S/A. Todos os testes foram realizados de acordo com as técnicas preconizadas pelo fabricante dos soros empregados neste experimento, tendo sido feitos controles, com suspensão de hemácias já conhecidas e fornecidas gentilmente pela Biotest S/A, evitando-se assim erros na interpretação dos resultados. A determinação da função secretora ou não secretora das substâncias ABH, foi realizada pela técnica da isoaglutinação descrita por FERREIRA (13) e por BEIGUELMAN(3). Os resultados comprovam a existência de uma interação entre o fenotipo Leb e a função secretora das substâncias ABH, pois não foi identificado nenhum caso, na amostra estudada, de secretor com fenotipo Lea+. A funcão não secretora destas substâncias. pela saliva humana. está mais relacionada com o fenotipo Lea, embora verificamos alguns casos de indivíduos não secretores com os fenotipos Lea-b-. Nos indivíduos pertencentes ao grupo sanguíneo AB, verificamos que a função secretora ou não secretora, dos fatores grupo-específicos da saliva, constitui uma especificidade dos fenotipos A e B, de forma totalmente independente
Abstract: Up to now, many studies have been carried out aiming to find out whether there is an interaction among blood types (ABO system), Lewis system phenotype and group-specific factors (either produced by human saliva or not). In this study we utilized blood and saliva samples from sixty persons who carne to this faculty to do paternity investigation exams under judicial determination. After using the sample for this purpose, the surplus of the sample was used for this research. From red blood cells suspension samples we determined the antigens of ABO system, i.e., blood types (A, B, AB or O), Rh (positive) and rh (negative) factors, Lewis system phenotypes (Lea e Leb), and the H substance, using Anti-A, Anti-B, Anti-Lea and Anti-Leb serum, and Anti H Lecithin serum, ali of them acquired from Biotest S/A. Ali the tests were done according to the manufacturer's instructions. The control was done with blood red cells suspensions given by Biotest S/A, so that we avoided result interpretation errors. The determination of secretory or non-secretory function of substances ABH was achieved through isoagglutination technique as described by FERREIRA(13) and by BEIGUELMAN (3). The results have confirmed the interaction between phenotypes Leb and the secretory functions of substances ABH, because no cases were found of secretory function with phenotype Lea+. The non-secretory function of these substances, from saliva, was mainly related to phenotypes Lea although we verified a few cases of non-secretory individuais with Lea-b- phenotypes. In AB blood type individuais we verified that the secretory or non secretory function from group-specific factors from saliva is specific of phenotypes A and B, in a totaUy independent way
Doutorado
Odontologia Legal e Deontologia
Doutor em Ciências
Ng, Kevin K. W. "Immunological Responses In Human Saliva With Acupuncture Stimulation." Thesis, The University of Sydney, 1988. http://hdl.handle.net/2123/5060.
Full textBenedetto, Monique Saveriano de. ""Proposta de um método prático para avaliação do poder de neutralização existente na cavidade oral"." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/23/23132/tde-09122002-170105/.
Full textSUMMARY Caries prevention remains one of the main goals in dentistry. Since caries is a multifactorial disease, it becomes necessary to obtain all possible information about the patient during anamnesis. Hence, the professional is able to establish an individual preventive treatment for each patient. Saliva bears several functions in the oral cavity; consequently, it is an important host factor that modifies the caries process. Saliva buffering capacity is one of the important factors usually taken into account to predict the individual caries risk. Several tests have been applied to identify this saliva function. Some of them require laboratorial features, whereas others are easy to handle, and can be applied at dental offices. The purpose of the present study was to develop a practical method to assess the neutralizing power inherent of the oral cavity. The methodology was based on a rinse of Coke Ô for 30 seconds, performed by 50 subjects (including children, teenagers and adults), followed by the assessment of pH variation between the initial sample of soft drink and the final mixture (saliva + Coke Ô). Along with this method, two other well known buffer capacity tests were performed titration with lactic acid and Dentobuff Strip®. We found statistically significant correlation between the proposed method and the titration with lactic acid (Pearson=0.304;p=0.032). On the other hand, there was no significant correlation between the proposed method and the test using Dentobuff Strip®. According to our results, the mean saliva neutralizing power after soft drink rinse, considering the cases of the critical enamel pH (5.5) and physiological saliva pH (7.0), were 23.8% (sd=16.5) and 17.0% (sd=12.4), respectively. The proposed method was practical and reliable to assess the neutralizing power of oral cavity and may be an additional technique to predict caries risk.
Bordin, Dimorvan 1989. "Biofilme e saliva afetam o comportamento biomecânico dos implantes dentários = Biofilm and saliva affect the biomechanical behavior of dental implants." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290237.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O coeficiente de atrito entre implante-pilar-parafuso tem sido considerado o fator principal na manutenção da estabilidade do conjunto. Estudos prévios demonstram que a saliva e o biofilme interposto entre estas superfícies podem alterar o coeficiente de atrito, comprometendo o comportamento biomecânico do conjunto. Nesse estudo foi avaliado a influência da película de saliva (Pel) e do biofilme (Bf) no coeficiente de atrito (CA) entre materiais protéticos utilizados na fabricação de pilares de titânio (Ti) e zircônia (Zr), e a influência do CA no comportamento biomecânico de uma prótese unitária implanto suportada. Discos de Ti (12,5 X 2mm) (n=14) receberam acabamento com lixas e foram divididos aleatoriamente em seis grupos de acordo com o par tribológico (Ti-Ti e Ti-Zr) em três condições de superfície do disco: Controle (Ctrl) sem película de saliva ou biofilme, com película de saliva (Pel) ou com biofilme (Bf). Os grupos obtidos foram: Ti-Ti Ctrl; Ti-Ti Pel; Ti-Ti Bf; Ti-ZrCtrl; Ti-Zr Pel; Ti-Zr Bf. Discos de Ti e Zr foram submetidos à aferição da rugosidade de superfície por interferometria. Os discos foram imersos em saliva para a formação de uma película de saliva e sobre esta um biofilme multiespécie (64,5 horas) composto por cinco espécies bacterianas e uma fúngica, respectivamente Actinomyces naeslundii, Streptococcus oralis, Streptococcus mutans, Veillonella dispar, Fusobacterium nucleatum, Candida albicans. O ensaio tribológico de atrito foi realizado em um tribômetro, onde uma esfera de Ti ou Zr (5mm) foi utilizada como contraparte. Uma carga de 10N foi aplicada e mantida na contraparte durante o deslocamento horizontal do disco (1mm/segundo). Os dados de CA foram avaliados por análise da variância a dois critérios e teste post hoc de Tukey (?=5%). O padrão de desgaste da superfície foi observado por microscopia eletrônica de varredura (MEV). Posteriormente, foi construído um modelo tridimensional virtual para a análise das tensões por e elementos finitos representando uma reabilitação unitária implanto-suportada de um incisivo central superior. Uma coroa protética foi modelada e virtualmente cimentada sobre um pilar anatômico. O pilar foi parafusado à um implante cone morse (4,1 X 11mm). O conjunto foi posicionado no modelo ósseo virtual da maxila. Seis modelos foram obtidos de acordo com o material do pilar (Ti e Zr) e de acordo com o coeficiente de atrito obtido nas condições estudadas (Ctrl, Pel e Bf). O CA, previamente obtido no ensaio tribológico, foi simulado na superfície de contato entre: implante-pilar; implante-parafuso; pilar-parafuso. Após a geração da malha (0,50mm), uma carga de 49N foi aplicada em ângulo de 45 graus na superfície palatina da coroa. Os valores de tensão foram avaliados de acordo o critério de tensão máxima principal e tensão de cisalhamento para o tecido ósseo e a tensão de von Mises para o implante e componentes protéticos. Os dados foram avaliados por análise da variância a dois critérios e calculada a porcentagem de contribuição de cada parâmetro do estudo. A superfície do titânio apresentou rugosidade de 0,19 ±0,01?m e da zircônia 0,25 ±0,01?m. O CA Ti-Ti Pel e Ti-Ti-Bf diminuiu em relação à Ti-Ti Ctrl (p<0,05). O CA dos grupos Ti-Zr Ctrl e Ti-Zr Bf foram semelhantes entre si (p>0,05) e aumentaram no grupo Ti-Zr Pel (p<0,05). Na avaliação dos materiais, o comportamento do Ti e Zr foi semelhante na presença de Pel(p>0,05) e diferiu nas demais condições (p<0,05). No estudo in silico, o CA contribuiu com 89,83% para a tensão no parafuso, diminuindo quando o CA foi menor (p<0,05). A tensão máxima principal e cisalhamento no osso medular foram influenciadas pelo CA com 63,94% e 98,59% (p<0,05), respectivamente. Concluiu-se que a película de saliva e o biofilme interferem com o comportamento biomecânico de uma reabilitação unitária implanto-suportada
Abstract: The friction coefficient between abutment-implant- screw has been considered as a key factor in retention joint stability. Previous studies shown that saliva and biofilm interfacing these surfaces may shift the friction coefficient, jeopardizing the joint biomechanical behavior. This study evaluated the influence of saliva (Pel) and biofilm (Bf) on friction coefficient (FC) between prosthetic materials used to manufacture abutments such as titanium (Ti) and zirconia (Zr) and the influence of the FC in the biomechanical behavior of single dental implant rehabilitation. Ti discs (12.5 x 2mm) (n=14) were polished with sandpaper and randomly into six groups according to the tribological couple (Ti-Ti and Ti-Zr) under three conditions: without biofilm or saliva pellicle as negative control (Ctrl); saliva pellicle (Pel) and biofilm (Bf). The obtained groups were: Ti-Ti Ctrl; Ti-Ti Pel; Ti-Ti Bf; Ti-Zr Ctrl; Ti-Zr Pel; Ti-Zr Bf. Discs of Ti and Zr underwent roughness measurements by interferometry. A saliva pellicle and a multispecies biofilm (64,5 hours) were developed onto the Ti discs. The biofilm was composed by 5 bacterial species and 1 fungal, respectively Actinomyces naeslundii, Streptococcus oralis, Streptococcus mutans, Veillonella dispar, Fusobacterium nucleatum, Candida albicans. A tribological assay was performed in a tribometer, where a sphere made of Ti or Zr (5mm) was used as counter part. A 10N of load was applied and maintained in the counter part during the horizontal displacement of the disc (1mm/sec). The FC data were evaluated by two-way Anova and Tukey post hoc test (?=5%).The surface wear patterns were observed by scanning electron microscopy (SEM). Subsequently, was built a virtual three-dimensional model representing a single dental implant rehabilitation for upper central incisor. A prosthetic crown was modeled and cemented onto an anatomic abutment. The abutment was screw-retained into the morse taper implant (4.1 X 11mm). The joint was positioned into a virtual bone model of maxilla. Six models were obtained according to the abutments material (Ti or Zr) in the friction coefficient under studied conditions (Ctrl, Pel and Bf). The previously FC obtained in the tribological assay was simulated in the contact surfaces between: implant-abutment; implant-screw; abutment-screw. After the mesh generation (0.50mm), a 49N of load was applied at 45 degree in the palatal surface of the crown. The stress data were evaluated according to the maximum principal and shear stress for the bone tissue and von Mises stress for the implant and prosthetic components. Two-way Anova was used to calculate the percentage of contribution of each parameter. The surface roughness of Ti was 0.19 ±0.01?m and Zr 0.25 ±0.01?m. The FC of Ti-Ti Pel and Ti-Ti Bf decreased when compared to Ti-Ti ctrl (p<0.05). The FC of Ti-Zr Ctrl and Ti-Zr Bf were similar (p>0.05) and increased in the Ti-Zr Pel (p<0.05). In the in silico study, the FC contributed with 89.83% of the stress in the screw, decreasing the stress when the FC was lower (p<0.05). The maximum stress in the cortical bone was influenced by 59.78% of friction and increased when the FC was lower (p<0.05). The maximum and shear stress in the cancellous bone were influenced by the FC with 63.94% and 98.59% (p<0.05), respectively. It can be concluded that the biofilm jeopardize the biomechanical behavior of a implant-supported single crown restoration
Mestrado
Protese Dental
Mestre em Clínica Odontológica
Alcure, Monica Leal. "Caracterização do perfil de colonização oral por Candida spp. em pacientes submetidos a transplante de celulas progenitoras hematopoieticas no Hospital de Clinicas da UNICAMP." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288407.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: As infecções superficiais e sistêmicas provocadas por Candida são freqüentes causas de morbidade e mortalidade em pacientes submetidos a transplante de células progenitoras hematopoiéticas (TCPH). Entre os fatores de risco destaca-se a colonização prévia a qual parece ser um pré-requisito para o desenvolvimento de infecção. Desta forma, a cavidade oral pode atuar como um reservatório para esses microorganismos. O presente estudo teve como objetivo avaliar, prospectivamente, o fluxo salivar e os efeitos da profilaxia antifúngica com fluconazol (200mg/dia) no número de pacientes colonizados por Candida spp. e no número de unidades formadoras de colônias (UFC) das espécies Candida encontradas na saliva dos pacientes submetidos a TCPH. Objetivou, ainda, realizar testes susceptibilidade antifúngica dos isolados, determinar o cariótipo eletroforético por meio de eletroforese em campo pulsátil (PFGE) nos isolados de Candida albicans e verificar a similaridade entre as cepas colonizadoras e as responsáveis pelos quadros de infecção. Foram incluídos no estudo 35 pacientes, 21 do TCPH Alogênico e 14 do TCPH Autólogo, com mediana de idade de 44 anos (21-71) sendo 22 (63%) do gênero masculino e 13 (37%) do gênero feminino. O fluxo salivar variou de modo estatisticamente significativo nos grupo Alogênico (p=0,0003) e no grupo Autólogo (p=0,009) no decorrer do estudo. Colonização por Candida ocorreu em 57% dos pacientes sendo que durante o transplante, estando o paciente sob profilaxia com fluconazol, houve redução de 60% no número de pacientes colonizados. Nesse período também ocorreu uma redução da média do número de UFC/ml seguida de expressivo aumento nas coletas subseqüentes, alcançando valores maiores que os obtidos na coleta inicial. O número de UFC/ml apresentou uma relação inversamente proporcional com o fluxo salivar (p=0,005). Não foi possível estabelecer relação entre o número de UFC/ml de saliva e a presença de candidose oral. Candida albicans foi a espécie mais freqüentemente encontrada representando 63% de todos os isolados seguida da Candida parapsilosis. Resistência aos antifúngicos foi encontrada em 6 isolados de Candida não albicans sendo 2 Candida parapsilosis, 2 Candida guilliermondii, 1 Candida krusei e 1 Candidq sp. Foram encontrados 9 diferentes perfis de cariótipo eletroforético de Candida albicans. Em 6 pacientes a mesma cepa encontrada na coleta inicial foi identificada ao longo do estudo. Quatro (11,4%) pacientes desenvolveram candidose oral no período pós-enxertia. Em todos os casos somente isolados de Candida albicans foram identificados. Todos esses pacientes foram colonizados inicialmente pela , mesma espécie sendo que em 3 pacientes, a mesma cepa colonizadora foi a responsável pela infecção. A maior ocorrência de candidose oral no período pós-enxertia pode estar relacionada com fatores inerentes ao hospedeiro. A persistência da mesma cepa sugere que a profilaxia com fluconazol durante o transplante não erradica a cepa colonizadora e que a colonização prévia parece ser um pré-requisito para o desenvolvimento de infecção
Abstract: Superficial and systemic Candida infections are usually responsible for morbidity and mortality in hematopoietic stem cell transplant (HSCT) recipients. Previous colonization is an important risk factor and seems to be a pre-requisite for infection and the oral cavity may be a reservoir for these microorganisms. The aim of this study was to ana1yze, prospectively, the unstimulated salivary flow rate and the fluconazole prophylactic regimen effects (200mg/day) in the number of Candida colonized patients and in the colonyforming unit (CFU) count of the Candida species identified in the saliva of HSCT recipients. The objective was also performed antifungal susceptibility tests in clinical isolates, determine the electrophoretic karyotype by pulsed-field gel electrophoresis (pFGE) in the Candida albicans isolates and verify the similarity between colonization and infection strains. Thirty-five patients were enrolled, 21 Allogeneic and 14 Autologous HSCT recipients. The median age was 44 years old (range 21-71). Twenty-two (63%) were male and 13 (37%) were female. The salivary flow rate varied in the Allogeneic (p=0,0003) and in the Autologous groups (p=0,009). Candida colonization was found in 57% of the patients. There was a 60% reduction of the number of colonized in patients under prophylactic fluconazole regimen. In this same time, there also was a reduction of the median CFU/ml count followed by an important increase of the sequential samples, reaching values higher than the count found in the initial collection. There was a significant inverse relationship between salivary flow and Candida CFU/rnl count (p=0,005). It was not possible to correlate the CFU/rnl count and oral candidosis. Candida albicans was the most frequent specie identified (63%) followed by Candida parapsilosis. Antifungal resistance was found in 6 clinical isolates of non-albicans species of Candida, 2 Candida parapsilosis,2 Candida guilliermondii, 1 Candida krusei and 1 Candida sp. We found 9 pattems of Candida albicans electrophoretic karyotyping. In 6 patients the initial colonization strain was found during the following study. Four patients (11,4%) developed oral candidosis by Candida albicans in the post engraftment period. AlI patients were initially colonized by the same specie. In 3 of these patients the same colonization strain was identified in the infection period. The major occurrence of oral candidosis in the post engraftment period may be related with inherent host factors. The persistence of the same strain suggests that the fluconazole prophylaxis does not eradicate the colonization strain. The previous colonization appears be a pre-requisite for de infection development
Doutorado
Patologia
Doutor em Estomatopatologia
Aksamit, Matthew Stephen. "Bioinformatic analysis of pea aphid salivary gland transcripts." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/32836.
Full textBiochemistry and Molecular Biophysics Interdepartmental Program
Gerald Reeck
Pea aphids (Acyrthosiphon pisum) are sap-sucking insects that feed on the phloem sap of some plants of the family Fabaceae (legumes). Aphids feed on host plants by inserting their stylets between plant cells to feed from phloem sap in sieve elements. Their feeding is of major agronomical importance, as aphids cause hundreds of millions of dollars in crop damage worldwide, annually. Salivary gland transcripts from plant-fed and diet-fed pea aphids were studied by RNASeq to analyze their expression. Most transcripts had higher expression in plant-fed pea aphids, likely due to the need for saliva protein in the aphid/plant interaction. Numerous salivary gland transcripts and saliva proteins have been identified in aphids, including a glutathione peroxidase. Glutathione peroxidases are a group of enzymes with the purpose of protecting organisms from oxidative damage. Here, I present a bioinformatic analysis of pea aphid expressed sequence tag libraries that identified four unique glutathione peroxidases in pea aphids. One glutathione peroxidase, ApGPx1 has high expression in the pea aphid salivary gland. Two glutathione peroxidase genes are present in the current annotation of the pea aphid genome. My work indicates that the two genes need to be revised.
Harvey, Neale. "Forces between surfaces across saliva and related macromolecules." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525336.
Full textClements, Andrea D., Wallace E. Jr Dixon, and B. J. Salley. "Obtaining Saliva From Toddlers for Cortisol Concentration Determination." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etsu-works/7292.
Full textOliveby, Anette. "Studies on the kinetics of fluoride in human saliva and its effects on plaque acidogenicity." Stockholm : Kongl. Carolinska Medico Chirurgiska Institutet, 1991. http://catalog.hathitrust.org/api/volumes/oclc/24041830.html.
Full textCAVALCANTI, Tayguara Cerqueira. "Avaliação do ph, capacidade tampão e fluxo salivar de pacientes portadores de insuficiência renal crônica." Universidade Federal de Pernambuco, 2011. https://repositorio.ufpe.br/handle/123456789/17399.
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O objetivo do presente trabalho foi avaliar o pH, capacidade tampão e fluxo salivar em pacientes com insuficiência renal crônica, antes e após a hemodiálise. Metodologia: estudo transversal, com 55 pacientes assim distribuídos: amostra de conveniência, composta de 32 indivíduos (18 homens, média de idade 59,5 anos, com idade variando de 28 a 87 anos e 14 mulheres, média de idade 48,2 anos, com idade variando de 30 a 83 anos) que se submetiam constantemente ao procedimento de hemodiálise em clínica particular na cidade de Maceió- AL (grupo 1) e 23 indivíduos (12 homens e 11 mulheres com média de idade de 24 e 22 anos respectivamente, com variação de 21 à 29 anos), composto por alunos do curso de odontologia do Centro universitário Cesmac e da Universidade Federal de Alagoas (grupo 2, controle). O fluxo salivar foi medido com seringa descartável de 5 mL. Para análise do pH foi utilizado pHmetro, a capacidade tampão foi avaliada através da diluição da saliva (2mL) em acido cítrico à 2% (2mL). A análise estatística foi realizada através dos testes de ANOVA, Tukey, Kruskal-Wallis e Dunn. Resultados: A hemodiálise não alterou as características do pH, fluxo e capacidade tampão da saliva. Comparando o grupo1 e o grupo 2 temos: pH com níveis semelhantes, com diferença estatística não significativa. O volume total de saliva expelida pelo grupo 1 apresentou níveis bem abaixo ao dos pacientes do grupo controle, 2,75 (± 2,32) e 7,26 (± 1,26) respectivamente. A capacidade tampão também foi menor no grupo 1. Conclusão: as características gerais da saliva (pH, capacidade tampão e volume) foram mantidas após a hemodiálise.
The aim of the present study was to evaluate the pH, buffer capacity e salivary flow rate of the patients with renal chronic failure, before and after hemodialysis. Methodology: a transverse study, total of 55 patients in this distribution: convenience sample with 32 individuals (18 males, age mean of 59,5 years, ranging 28 to 87 years and 14 females, age mean of 48,2 years, ranging 30 to 83 years) submitted the hemodialysis in a particular clinical in Maceio – AL (group 1) and 23 individuals (12 males e 11 females with age median of 24 and 22 years respectively, ranging 21 to 29 years), composed by graduation stage from CESMAC University Center and Federal University of Alagoas (group 2, control). salivary flow rate was observed the amount of aspirate salivary in a 5 ml syringe. The pH was analyzed with pHmeter and buffer capacity was verified by addiction of 2% citric acid (2 mL). Statistical analysis was verified by ANOVA, Tukey, Kruskal-Wallis and Dunn. Results: The hemodialysis don`t promoted modification on the pH, rate and buffer capacity in salivary samples. Comparing group 1 and group 2 was showed that: pH present similar level, with no statistical diference. The total salivary rate of group 1 was three times less than control group, 2,75 (± 2,32) e 7,26 (± 1,26) respectively. The buffer capacity was less in group 1. Conclusion: the general features of salivary (pH, buffer capacity and flow rate) keeping the same after hemodialysis.
Cavalcanti, Indira Moraes Gomes 1988. "Influência da nitretação de superfície de titânio sobre a formação e desenvolvimento de biofilmes multiespécie = Influence of titanium nitride by cold-plasma on formation and development of multiespecies biofilms." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/288001.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Tratamentos que alteram propriedades de superfície de titânio são realizados em implantes odontológicos visando uma melhor sinalização celular e a neoformação óssea. Porém, em determinadas situações clínicas, as superfícies de titânio expostas ao meio oral recobertas por película adquirida (PA) podem se tornar substratos para o desenvolvimento de biofilmes associados às doenças inflamatórias, como a peri-implantite. Diante desta observação, os objetivos deste estudo foram (i) caracterizar a superfície de titânio nitretada por plasma a frio quanto às propriedades de rugosidade, topografia, composição química e energia livre de superfície (ELS); (ii) determinar o perfil protéico da PA adsorvida às superfícies (iii) avaliar a influência do tratamento de superfície na formação e desenvolvimento de biofilmes multiespécies. Para o estudo, discos de titânio grau IV receberam polimento e acabamento e foram divididos aleatoriamente no grupo controle (Ti) e experimental TiN (nitretado por plasma a frio). As superfícies foram caracterizadas através da microscopia eletrônica de varredura (MEV) e a rugosidade e topografia determinadas pela Microscopia de Força Atômica (n = 4). A ELS foi avaliada pela técnica ácido-base e leitura em goniômetro (n = 9) e a composição química da superfície foi determinada por Espectroscopia Fotoeletrônica de Raios-X (XPS) (n = 4). Em seguida, os discos foram imersos em saliva para formação de PA por 2 horas e novamente a ELS foi determinada (n = 6). O perfil protéico da PA foi determinado por espectrometria de massas LC-MS/MS (n = 18). Um biofilme composto por um fungo e seis bactérias (Candida albicans, Veillonella dispar, Streptococcus mutans, Streptococcus oralis, Fusubacterium nucleatum e Actinomyces naeslundii), foi desenvolvido durante 64,5 horas sobre os discos com película. Após este período, os micro-organismos e o biofilme total foram quantificados em células viáveis (n = 12). A topografia e a organização dos biofilmes foram analisadas por MEV e pela microscopia confocal a laser. Os dados de células viáveis e perfil protéico foram avaliados estatisticamente pelo Teste t de Student e os dados de ELS pela análise de variância (ANOVA) de dois fatores seguida pelo teste de Tukey com nível de significância de 5 %. Os resultados demonstraram não haver diferença entre as propriedades de rugosidade e topografia entre os grupos e um maior pico de nitrogênio foi detectado na composição química da superfície nitretada. O tratamento não alterou a ELS, que aumentou apenas na presença de PA (p < 0.001). Diferentes proteínas se adsorveram a superfície nitretada. A quantidade de células viáveis do biofilme formado nas duas superfícies foi semelhante (p = 0.416), confirmado pelas microscopias, porém Fusobacterium nucleatum e Streptococcus oralis foram quantificados em maior número nos biofilmes do grupo TiN. Conclui-se que a nitretação por plasma a frio não alterou as propriedades de superfície de titânio e não influenciou a quantidade de biofilme formado. Porém, a superfície nitretada aumentou as contagens de Fusobacterium nucleatum e Streptococcus oralis e selecionou diferentes proteínas na PA
Abstract: Surface treatments that alter titanium properties titanium are performed on dental implants in order to improve the cell signalization and bone formation. Although, in certain clinical situations, the surfaces exposed to oral cavity covered by acquired-pellicle (AP) may become substrates for development of biofilms associated with inflammatory diseases as periimplantitis. Given this observation, the aims of this study were (i) to characterize the surface properties of titanium nitride by cold plasma as roughness, topography, chemical composition and surface free energy (SFE), (ii) determine the protein profile of AP adsorbed to the surfaces (iii) evaluate the influence of surface treatment on formation and development of multispecies biofilms. For the study, titanium discs grade IV received polish and finish and were randomly allocated to control (Ti) and experimental TiN (nitride by cold-plasma) groups. The surfaces were characterized by scanning electron microscopy (SEM) and roughness and topography determined by Atomic Force Microscopy (n = 4). The SFE was evaluated using the acid-base technique and read in goniometer (n = 9). The surface chemical composition was determined by x-ray photo-electron spectroscopy (XPS) (n = 4). Then, the discs were immersed in saliva for AP formation per 2 hours and again the SFE was determined (n = 6). The AP protein profile was determined by mass spectrometry LC-MS/MS (n = 18). A biofilm composed by five bacteria and one fugal (Candida albicans, Veillonella dispar, Streptococcus mutans, Streptococcus oralis, Actinomyces naeslundii and Fusobacterium nucleatum) was conducted for 64.5 hours on coated-discs. After this period, the viable cells of biofilms were determined (n = 12). The biofilms topography and organization were analyzed by SEM and by confocal laser microscopy. The data of viable cells and protein profile were evaluated statistically by Student's t test and SFE data by two-way ANOVA followed by Tukey's test with a significance level of 5%. The results showed no difference between the properties of roughness and topography in groups. A high peak of nitrogen was detected in the chemical composition of the nitride surface. The treatment did not alter the SFE, that increased in the presence of AP (p <0.001). Different protein adsorbed to nitride surface. The amount of viable cells in the biofilm formed on both surfaces was similar (p = 0.416), confirmed by microscopies. The number of viable cells of Streptococcus oralis and Fusobacterium nucleatum were higher in TiN. It was concluded that the cold plasma nitriding did not alter the titanium surface properties and did not affect the amount of biofilm. However, it increased the counts of Fusobacterium nucleatum and Streptococcus oralis and selected different proteins in AP
Mestrado
Protese Dental
Mestra em Clínica Odontológica
Kawaguchi, Fernando Aparecido. "Influência da contaminação por saliva durante a realização de procedimentos adesivos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-28092009-144230/.
Full textThis study evaluated the influence of saliva contamination during distinct steps of the operatory procedure and treatments used to counteract its effects on the microtensile bond strength. 120 human molars were used (n=10) and both substrates were obtained from the same teeth. The experimental groups were: no contamination (control group G1 and G13); contamination before acid conditioning (CBC), wash and dry (G2 and G14); only dry (G3 and G15); contamination after acid conditioning (CAC), wash and dry (G4 and G16); only dry (G5 and G17); CAC and reconditioning (G6 and G18); contamination between the 2 adhesive system layers (CBL), with wash and dry (G7 and GG19), only dry (G8 and G20); CBL and reconditioning (G9 and G21); contamination after polymerization (CAP), with wash and dry (G10 and G22), only dry (G11 and G23), CAP and reconditioning (G12 and G24). Adper Single Bond 2 adhesive system (SB2) and Composite Resin Z-250 were used for microtensile test. ANOVA results showed a statistically significant difference when saliva contaminated adhesive procedures in enamel (p=0.007) and dentin (p=0.001). In enamel, the moments when contamination occurred during the operative procedure showed statistical difference (p<0.001), while in dentin the interaction between the factors - moments and treatments - showed to be statistically significant (p<0.001). Based on the obtained results it was licit to conclude that saliva contamination during etch-and-rinse adhesive application decreases adhesion to enamel and dentin in specific experimental conditions; the most indicated treatment to counteract saliva influence is directly related to the moment of the operatory procedure that the contamination occurred.
Azevêdo, Larissa Marinho. "Efeito da contaminação salivar na resistência de união da interface dentina/resina composta, tratada com clorexidina 0,2%." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/25/25148/tde-10032016-150129/.
Full textThe aim of this in vitro study was to evaluate the effect of saliva contamination on the dentin/composite resin interface treated with 0.2% chlorhexidine after 24 hours, 6 months and 12 months. The teeth (n=80) were randomly divided into 8 groups according to the treatment of the dentine after demineralization with 37% phosphoric acid for 15s: Adper Single Bond - SB or Scotchbond Multipurpose - MP (control): no contamination, no chlorhexidine; SB-S or MP-S: saliva contamination, no chlorhexidine; SB-Chx or MP-Chx: no contamination, with chlorhexidine; SB-S-Chx or MP-S-Chx: with contamination, with chlorhexidine. After restorative procedures with Filtek Z250, the teeth were stored in water at 37oC for 24 hours prior to been cut into beams for the microtensile test performed after 24 hours, 6 months and 12 months. Another 24 teeth submitted to the same procedures and divided into the same groups (n=3) were analyzed in scanning electron microscopy (SEM). The microtensile bond strength and the hybrid layer thickness were subjected to 4-way analysis of variance (ANOVA) with significance level of 5%. The bond strength mean values (MPa±sd: Immediate/6 months/1 year) were: SB (17.6±3.61; 19.5±5.46; 26.5±5.4); SB-S (15.9±5.71; 17.7±2.46; 21.8±4.1); SB-Chx (13.6±3.35; 18.7±3.89; 23.6±7.7); SB-S-Chx (15.8±3.47; 19.6±5.31; 24.1±5.0); MP (13.3±4.42; 20.7±4.09; 23.7±8.0); MP-S (12.4±3.34; 16.4±4.58; 22.2±6.2); MP-Chx (14.1±4.43; 18.9±4.33; 22.6±8.3); MP-S-Chx (11.9±2.16; 15.0±4.01; 20.9±4.9). The hybrid layer thickness mean values (Mean±sd: Immediate/6 months) were: SB (2.51±0.22; 1.71±0.17); SB-S (2.04±0.21; 1.54±0.21); SB-Chx (1.89±0.27; 1.82±0.38); SB-SChx (2.67±0.29; 1.86±0.19); MP (2.32±0.20; 1.69±0.29); MP-S (2.53±0.32; 1.32±0.15); MPChx (2.58±0.22; 1.41±0.42); MP-S-Chx (1.88±0.31; 1.52±0.40). Therefore, it can be concluded that saliva contamination did not affect the bond strength of the dentin/composite resin interface (treated or not with 0.2% chlorhexidine) for both adhesive systems tested after 24 hours. However after 6 months and 1 year the bond strength of the contaminated specimens decreased. SEM analysis showed that the highest average thickness of hybrid layer was registered for the 24 hours group and there was no statistically significant difference among the groups for contamination, chlorhexidine and adhesive system.
Fernandes, Viviane Mendes. "Cortisol salivar e atenção auditiva sustentada." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/61/61132/tde-12062017-161255/.
Full textObjective: To verify a possible correlation between salivary cortisol level and sustained auditory attention in children with cleft lip and palate. Place of Execution: Hospital of Rehabilitationof Craniofacial Anomalies. Method:Prospective study with 69 children from 6 to 11 years of age, with cleft lip and palate, with normal hearing and no history of inattention. The children were submitted to saliva collection for the measurement of cortisollevel and to the Sustained Auditory Attention Ability Test(SAAAT) to verify sustained attention. Results:The results demonstrated the absence of statistical significance between the sexes, both for the cortisol level and for the sustained auditory attention. The 7-year-old children had the worst results in sustained attention and the highest levels of salivary cortisol. Conclusion:A positive correlation with a statistically significant difference between salivary cortisol level and sustained auditory attention ability was observed only in children with cleft lip and palate at the age of seven years.
Passarelli, Miriam Meyer. "Saliva como amostra para o controle terapêutico do lítio." Universidade de São Paulo, 1988. http://www.teses.usp.br/teses/disponiveis/9/9140/tde-06082008-130822/.
Full textSafioti, Luciana Moreira Lima. "Comparação dos níveis de histatinas da saliva da parótida entre sujeitos com doença periodontal e sujeitos sem história prévia de doença periodontal." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/23/23146/tde-28092005-095600/.
Full textHistatins are a family of peptides present in human salivary secretions. The major members of this family are histatins 1, 3, and 5. Several studies have shown inhibitory properties of histatins on bacterial and host-derived products which suggest an important role of defense for histatins in the presence of periodontal disease. This study aimed at comparing the levels of histatins 1, 3, and 5, and the total histatins in parotid saliva between periodontally healthy and compromised subjects. Twenty subjects with periodontal disease and twenty subjects with no previous history of periodontal disease had saliva samples collected from the parotid gland under gustatory stimulation using sour candies with the aid of a Carlson-Crittenden device positioned over the Stensons duct and connected to a polypropylene graduated cylinder chilled on ice. Histatins levels were quantified using the two-step procedure using zinc precipitation of histatins followed by reversed-phase high performance liquid chromatography. No statistical differences were found for levels of histatins 1, 3, and 5, and for the total histatins between periodontally healthy and compromised subjects, showing that the periodontal disease does not trigger a higher production and output of histatins by the innate host defense system.
Nobrega, Priscila Brasil da. "Detecção de quimiocinas na saliva de pacientes com periodontite." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/58/58132/tde-19022009-144202/.
Full textObjective: Periodontitis produces an inflammatory proteins discharge that can be reflected in saliva. The aim of this study was to measure salivary concentrations of interleukin-8 (IL-8), RANTES (Regulated upon Activation, Normal T Cell Expressed and Secreted), MIG (monokine induced by gamma interferon), IP-10 (interferon γ-inducible protein of 10 kD), e MCP-1 (macrophage chemotactic protein-1) in patients with chronic periodontitis and healthy. Material and Methods: A total of 32 subjects was divided in 2 groups: healthy (Control, n=11) and patients with periodontitis (PD, n=21. Clinical data were recorded. Non-stimulated saliva samples were analyzed and identified simultaneously using the human flow cytometry multiplex assays. Results: Of the target biomarkers examined, IL-8, MCP-1, MIG and IP-10 were found in greatest abundance in the saliva samples. It was found statistically significant differences among screened salivary proteins: IL-8 (p = 0.0008), MCP-1 (p = 0.003), and RANTES (p= 0.03). No statistical differences between the groups were observed for IP-10 (Ctrl 193.85 ± 64.21. PD 423.78 ± 85.67, p = 0.08), and MIG (Ctrl 173.33 ± 79.28; PD 341.26 ± 77.23. p = 0.05). All cytokines levels were higher on PD patients in comparison with controls samples. Only samples that stayed within the detection limit for the assay were considered for statistical analysis. For Control group, no correlation was found between clinical parameters and the chemokines levels. In PD group, positive Spearman correlation was observed between total amount of MCP-1 and Age (r 0.648; p<0.001) and negative correlation was observed between MCP-1 with PPD (r -0.462, p = 0.03) and CAL (r -0,461, p = 0.003). Significant negative correlation was found between total amount of RANTES and the percentage of SUP (r -0.457, p = 0.03). Conclusion: The above results suggest that the increased levels of chemokines MCP-1, RANTES and IL-8 in PD individuals may be responsible for maintaining the infiltration of specific leukocytes. This mechanism would serve to promote the migration of leukocytes into the sites of inflammation and the chronicity of inflammation in human periodontitis.