Dissertations / Theses on the topic 'PCR-RFLP'
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Šuranská, Hana. "Identifikace vinných kvasinek metodou PCR-RFLP." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216494.
Full textZiebell, Kim. "Evaluation of PCR and PCR-RFLP protocols to identify the Shiga toxins." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0026/MQ51107.pdf.
Full textOlivová, Radana. "Optimalizace metody PCR-RFLP pro taxonomické zařazení kvasinek." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2009. http://www.nusl.cz/ntk/nusl-216560.
Full textArraes, Ana Carolina Palmeira. "Detecção da diversidade molecular de Candida spp. isoladas de UTI neonatal." reponame:Repositório Institucional da UFBA, 2013. http://www.repositorio.ufba.br/ri/handle/ri/11817.
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A incidência de candidemia tem aumentado nos últimos anos e o espectro das espécies de Candida tem mudado com a emergência das espécies não-albicans e com o aumento da resistência antifúngica. A técnica de PCR associada à análise dos polimorfismos de fragmentos de restrição (PCR-RFLP) e AP-PCR são exemplos de técnicas moleculares utilizadas para a detecção da variabilidade genética desses micro-organismos. O objetivo deste trabalho foi caracterizar molecularmente Candida spp. clinicamente importantes. Foram estudadas 82 leveduras do gênero Candida, 73 isolados clínicos e nove cepas padrão de referência da “American Type Culture Collection” (ATCC). O DNA genômico foi extraído através de lise mecânica/química e fenol-clorofórmio. Após amplificação com iniciadores ITS1 e ITS4, os produtos da PCR foram digeridos com as enzimas DdeI, HaeIII, BfaI e MspI. Outra amplificação foi realizada com o iniciador arbitrário AP-4. A identificação fenotípica revelou a frequência de 38% de C. parapsilosis, 33% de C. albicans, 27,5% de C. tropicalis e 1,5% de C. guilliermondii. Após amplificação, foi possível identificar e diferenciar as espécies C. lusitaniae, C. guilliermondii, C. famata e C. glabrata. A diferenciação entre C. albicans, C. dubliniensis C. tropicalis, C. krusei e C. parapsilosis não foi bem evidenciada com as enzimas DdeI e HaeIII. Porém, MspI conseguiu diferenciar C. tropicalis, C. krusei, C. parapsilosis, C. glabrata, C. guilliermondii, C. lusitaniae e C. famata, juntamente com BfaI que separou C. albicans de C. dubliniensis. Já a técnica de AP-PCR com o iniciador AP-4, possibilitou a distinção das nove espécies cepas padrão ATCC de Candida, pois todas apresentaram perfis de amplificação com número, intensidade e tamanho de banda específico, onde cada espécie foi alocada em grupo distinto e a relação de similaridade variou de 38-69%, ratificando o poder de diferenciação das espécies. As técnicas moleculares foram reprodutíveis e relativamente rápidas, de fácil interpretação e podem ser aplicadas na identificação de espécies clinicamente importantes de Candida para auxílio no diagnóstico mais rápido e tratamento mais eficiente.
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Malvárez, Macedo Gabriela. "Aplicação das metodologias PCR/RFLP para caracterização de fungos ectomicorrízicos em eucalipto /." reponame:Repositório Institucional da UFSC, 1999. https://repositorio.ufsc.br/handle/123456789/112290.
Full textBjörkbom, Tommy. "PCR-RFLP analys av mt-DNA hos Öring (Salmo trutta) i Gävleborgs län." Thesis, University of Gävle, Department of Electronics, Mathematics and Natural Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7624.
Full textSultan, Amal Hassan. "The development of molecular tools for identification of Leishmania species by PCR-RFLP." Thesis, University of Liverpool, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479067.
Full textMEDEIROS, Rafael Acioli. "Caracterização da Leishmania infantum e Leishmania (Viannia) braziliensis em cães provenientes da Região Metropolitana do Recife, Pernambuco." Universidade Federal de Pernambuco, 2013. https://repositorio.ufpe.br/handle/123456789/12218.
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As Leishmanioses são uma antropozoonose com ampla distribuição geográfica e ocorrência em torno de 88 países. Na Leishmaniose visceral americana (LVA), os cães domésticos são considerados os principais reservatórios da L. infantum no ambiente domiciliar. Diferentes perfis epidemiológicos da Leishmaniose Tegumentar Americana (LTA) têm sido caracterizados pela presença de casos humanos em áreas de colonizações antigas, sugerindo uma antropozoonose entre os animais domésticos por demonstrarem lesões tegumentares causadas pela Leishmania (Vianna) braziliensis. O diagnóstico das leishmanioses pode ser realizado através de métodos clínicos, epidemiológicos, parasitológicos, imunológicos e moleculares. Em áreas endêmicas o diagnóstico clínico e epidemiológico dessas zoonoses é dificultado pela similaridade clínica com outras doenças, tornando a utilização de exames laboratoriais de suma importância para confirmação diagnóstica. Em virtude da necessidade de diagnóstico especifico das leishmanioses na espécie canina, este trabalho tem como objetivo a utilização da PCR-RFLP, tendo como alvo o espaçador interno transcrito (ITS-1), para diferenciação das espécies de Leishmania em cães provenientes da Região Metropolitana do Recife. Foram coletadas 40 amostras de soro e medula de cães, 30 machos e 10 fêmeas, com idades entre 2 e 7 anos , que apresentaram suspeita clinica de leishmaniose quando atendidos no Hospital Veterinário da UFRPE. Foram realizados os testes diagnósticos de exame direto em medula e Reação indireta de imunoflorescência tanto para LTA quanto LVA. Além disso foi realizado a PCR-RFLP nas amostras de soro e urina para a pesquisa de L. infantum e L. (viannia) braziliensis. Dos 40 cães pesquisados 23 foram positivos para L.infantum e 17 foram negativos para as duas espécies pesquisadas. Quando comparado com os testes diagnósticos convencionais , 3 dos 23 cães foram positivos apenas na técnica molecular. Portanto, a ITS1-PCR RFLP pode ser uma importante ferramenta para o diagnostico e caracterização da leishmaniose canina em uma determinada região.
Abreu, Daniel Paiva Barros de. "Caracteriza??o fenot?pica, genot?pica e perfil de sensibilidade a antif?ngicos de isolados cl?nicos de c?es e gatos pertencentes ao Complexo Sporothrix schenckii oriundos do estado do Rio de Janeiro." Universidade Federal Rural do Rio de Janeiro, 2017. https://tede.ufrrj.br/jspui/handle/jspui/2031.
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Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq
Dimorphic fungi belonging to Sporothrix schenckii complex are responsible for sporotrichosis, important fungal infection with worldwide distribution. The anthropozoonotic characteristic is of high relevance in the state of Rio de Janeiro, where an increasing in the number of cases in human patients was observed in the last decades, highlighting the role of domestic cat as a transmitter agent. The description of new species compounding de Sporothrix genus, based on phenotypic and genotypic evaluations, showed the involvement of other members of this group in the epidemic status installed in Rio de Janeiro. The verification of strains resistant to itraconazole, a widely used antifungal in human and animal medicine for the treatment of this mycosis, is an important factor that possibly results in relapse and therapeutic failure of this disease. The present study aimed to identify, by phenotypic and molecular approaches, 168 isolates obtained from the routine of Veterinary Clinical Microbiology Laboratory ? UFRRJ, and the determination of minimal inhibitory concentration (MIC) for amphotericin B (AMB), ketoconazole (KTC), itraconazole (ITC), terbinafine (TRB) and voriconazole (VRC). Based on morphophysiological characteristics it was possible to identify 159 (94.64%) isolates as S. brasiliensis and 9 (5.36%) as S. luriei. However, applying PCR-RFLP of calmodulin 168 (100%) samples were identified as S. brasilensis. The susceptibility test, based on M38-A2 document (CLSI), showed that TRB was the most effective antifungal tested, followed by ITC, KTC, AMB, and VRC, respectively. No ITC resistant isolates were detected in the present study. These results demonstrate that the identification reached only by phenotypic evaluation is not recommended for the characterization of Sporothrix schenckii complex components. It also proves the predominance of S. brasiliensis in other regions of RJ state. The better efficacy of TRB added to the absence of isolates resistant to ITC support the necessity of pharmacodynamics and pharmacokinetics studies for the optimization of the therapeutic protocols. More information about isolates from dogs and cats correlated with the species from the S. schenckii complex, as well as in vitro antifungal efficacy evaluation provide knowledge about therapeutic alternatives. In this way, the present study also provides relevant information about the endemic status in Rio de Janeiro and important data for the treatment of human and animal sporotrichosis.
Fungos dim?rficos pertencentes ao complexo Sporothrix schenckii s?o respons?veis pela esporotricose, importante infec??o f?ngica que apresenta distribui??o mundial. Sua conhecida caracter?stica antropozoon?tica apresenta grande relev?ncia no estado do Rio de Janeiro, onde se verifica aumento significativo no n?mero de pacientes humanos e animais acometidos pela doen?a nas ?ltimas d?cadas, destacando-se em tais casos o papel do felino como agente transmissor. A descri??o de novas esp?cies pertencentes ao g?nero Sporothrix, baseada em caracter?sticas fenot?picas e genot?picas, demonstrou o envolvimento de outros componentes deste g?nero na epidemia instalada no estado. A verifica??o de isolados resistentes a itraconazol, antif?ngico amplamente utilizado na medicina humana e veterin?ria para o tratamento da doen?a, ? fato preocupante e tem poss?vel associa??o a recidivas e falhas terap?uticas. O presente estudo objetiva a identifica??o fenot?pica e genot?pica de 168 exemplares oriundos de pacientes felinos e caninos, obtidos na rotina do Diagn?stico Microbiol?gico Veterin?rio - UFRRJ, com determina??o da Concentra??o Inibit?ria M?nima (CIM) frente ? anfotericina B (AMB), cetoconazol (KTC), itraconazol (ITC), terbinafina (TRB) e voriconazol (VRC). A partir de caracter?sticas morfofisiol?gicas foi poss?vel identificar 159 (94,64%) isolados como S. brasiliensis e 9 (5,36%) como S. luriei. Contudo, metodologias moleculares identificaram 168 (100%) S. brasiliensis, a partir de PCR-RFLP em gene respons?vel pela s?ntese de calmodulina. O teste de sensibilidade, realizado a partir do documento M38-A2 (CLSI) determinou maior efic?cia in vitro para TRB, seguido por ITC, KTC, AMB e VRC, respectivamente. Cepas resistentes a ITC n?o foram detectadas no presente estudo. Tais resultados demonstram que a identifica??o alcan?ada exclusivamente por m?todos fenot?picos n?o ? recomendada para caracteriza??o de componentes do complexo Sporothrix schenckii. Comprova-se ainda a predomin?ncia de S. brasiliensis em outras regi?es do estado do RJ. A maior efic?cia de TRB, somada a aus?ncia de exemplares resistentes a ITC, refor?a a necessidade de estudos farmacodin?micos e farmacocin?ticos para otimiza??o dos protocolos terap?uticos atualmente utilizados. Obten??o de maiores informa??es acerca dos isolados provenientes de amostras provenientes de c?es e gatos correlacionados a esp?cies dentro do complexo S. schenckii, bem como a avalia??o da efic?cia in vitro de antif?ngicos proporcionam conhecimento sobre alternativas terap?uticas. Tais informa??es auxiliam no entendimento do quadro instalado no estado do Rio de Janeiro e fornece dados de grande utilidade para o tratamento humano e veterin?rio
Spengler, C. J. "PCR-RFLP typification of microbes used in the production of a fermented fish product." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52397.
Full textENGLISH ABSTRACT: The preservation of various fresh fish products is achieved by either smoking, salting, canning, freezing or fermenting a highly perishable raw product. Since many of these facilities are not readily available, the use of fermentation as a means of preserving the product has been extensively practiced. However, the fermentation of fish is a time consuming practise and only by accelerating the process would it be possible to ensure the production of a more cost effective and readily available safe end-product. The quality of the fermented fish product is partially determined by the fermentation conditions and the metabolic activity of the microbes present. The rapid identification of the microbes present during the fermentation would enable the selection of possible starters to ensure an accelerated production of high quality fermented fish products. This study was thus undertaken to develop identification fingerprints for bacteria isolated from fermented fish products. A 1300 bp fragment of the 16S rRNA genes of each of the bacteria previously isolated was successfully amplified using the PCR technique. The isolates included strains of the genera Bacillus, Staphylococcus, Sphingomonas, Kocuria, Brevibacillus, Cryseomonas, Vibrio, Stenotrophomonas and Agrobacterium. The data obtained can, therefore, be used in the identification of these microbes isolated from other similar fermented fish products. The fingerprints could also be used to assist in determining the dominant microbial populations responsible for the characteristic qualitative changes occurring in the fish product during fermentation. The microbial composition of a fermenting fish product partially determines the quality of the end-product, therefore, the use of selected bacterial starters could result in the accelerated production of a microbial safe fermented fish product. A further objective of this study was to accelerate the production of a fermented fish product by inoculating macerated trout with either selected lactic acid bacteria (LAB) or with selected bacteria with high proteolytic activity over a 30 day fermentation period. The LAB included a combination of Lactobacillus plantarum, Lactococcus diacetylactis and Pediococcus cerevisiae strains, whereas the bacteria with high proteolytic activity included strains of Kocuria varians, Bacillus subtilis, two strains of B. amyloliquefaciens and a combination of these bacterial species. The quality of the fermented product was determined using changes in product pH, titratable acidity (%TA) and free amino nitrogen (FAN) formation as efficiency parameters. The data obtained during the fermentation of the macerated trout showed that the selected starters did not have a significant effect on the pH decrease in the product over a 30 day fermentation period. The LAB strains did not have a significant effect on the %TA of the fermenting fish product, yet the presence of these bacteria appeared to limit the FAN production in the product. The bacteria with high proteolytic activity resulted in slightly enhanced %TA values and a higher FAN content in the fermented product. It was also determined that the LAB and Kocuria varians, in contrast to the Bacillus spp. inoculums, did not survive the fermentation conditions well, possibly due to the low pH environment. The presence of the starter bacteria in the fermenting fish mixture at the end of the fermentation was also successfully determined with the use of the PCR-RFLP technique. The fermented fish product, obtained at the end of the fermentation period, had a good aroma and compared favourably to similar commercially available fermented fish products. The use of different microbial starters could in future enable the production of a diverse range of high quality products, which could be produced and marketed locally.
AFRIKAANSE OPSOMMING: Die preservering van ‘n verskeidenheid vars vis produkte word bereik deur die hoogs bederfbare produk te rook, te sout, te blik, te vries of te fermenteer. Aangesien baie van hierdie fasiliteite nie geredelik beskikbaar is nie, is die gebruik van fermentasie as ‘n preserverings metode al ekstensief beoefen. Die fermentasie van vis is egter 'n tydsame proses en slegs deur die versnelling van die proses sal dit moontlik wees om die produksie van ‘n meer koste effektiewe en geredelike beskikbare veilige eindproduk te verseker. Die kwaliteit van die gefermenteerde vis produk word gedeeltelik bepaal deur die fermentasie kondisies en die metaboliese aktiwiteit van die mikrobes teenwoordig. Die vinnige identifikasie van die mikrobes teenwoordig gedurende die fermentasie sal die seleksie van moontlike suursels om die versnelde produksie van hoë kwaliteit gefermenteerde vis produkte moontlik maak. Hierdie studie is dus onderneem om identifikasie vingerafdrukke vir bakteriee wat gei'soleer is van gefermenteerde vis produkte moontlik te maak. ‘n 1300 bp fragment van die 16S rRNA gene van elkeen van die bakteriee wat voorheen gei'soleer is, is suksesvol geamplifiseer deur die PCR tegniek. Die isolate sluit in stamme van die genera Bacillus, Staphylococcus, Sphingomonas, Kocuria, Brevibacillus, Cryseomonas, Vibrio, Stenotrophomonas en Agrobacterium. Die data kan dus gebruik word in die identifikasie van hierdie mikrobes as dit gei'soleer word van ander gefermenteerde vis produkte. Die vingerafdrukke kan ook gebruik word om die dominante mikrobiese populasies wat verantwoordelik is vir die kenmerklike kwalitatiewe veranderinge wat plaasvind in die vis produk gedurende die fermentasie, te identifiseer. Die mikrobiese samestelling van ‘n fermenterende vis produk bepaal gedeeltelik die kwaliteit van die eindproduk, daarom kan die gebruik van geselekteerde bakteriese suursels die versnelde produksie van ‘n mikrobies veilige gefermenteerde vis produk teweeg bring. ‘n Verdere doel van hierdie studie was om die produksie van ‘n gefermenteerde vis produk te versnel deur fyngemaakte forel met of geselekteerde melksuurbakteriee of met geselekteerde bakteriee met hoë proteolitiese aktiwiteit te inokuleer oor ‘n 30 dag fermentasie periode. Die melksuurbakteriee het ingesluit ‘n kombinasie van Lactobacillus plantarum, Lactococcus diacetylactis en Pediococcus cerevisiae, terwyl die bakterieë met hoë proteolitiese aktiwiteit stamme van Kocuria varians, Bacillus subtilis, twee stamme van Bacillus amyloliquefaciens en ‘n kombinasie van hierdie bakteriese stamme ingesluit het. Die kwaliteit van die gefermenteerde produk is bepaal deur die veranderinge in die pH, titreerbare suur (%TS) en vrye amino stikstof (VAS) vorming van die produk as effektiwiteits parameters te gebruik. Die data wat verkry is gedurende die fermentasie van die fyngemaakte forel het gedui daarop dat die geselekteerde suursels nie ‘n merkwaardige effek op die afname in pH in die produk oor ‘n 30 dag fermentasie periode het nie. Die melksuurbakteriee het nie ‘n merkwaardige effek op die %TS van die gefermenteerde vis produk gehad nie, terwyl dit geblyk het dat die teenwoordigheid van hierdie bakterieë die produksie van VAS in die produk belemmer het. Die bakteriee met hoe proteolitiese aktiwiteit het ‘n effense verhoogde %TS en ‘n hoër VAS inhoud in die gefermenteerde produk veroorsaak. Dit is ook bepaal dat die melksuurbakteriee en Kocuria varians, in teenstelling met die Bacillus spp. inokulums, nie die fermentasie kondisies goed oorleef het nie, moontlik as gevolg van die lae pH omgewing. Die teenwoordigheid van die suursel bakteriee in die fermenterende vis mengsel aan die einde van die fermentasie is ook suksesvol bepaal met die PKR-RFLP tegniek. Die gefermenteerde vis produk, verkry aan die einde van die fermentasie periode, het ‘n goeie aroma gehad en het goed vergelyk met soortgelyke kommersieel beskikbare gefermenteerde vis produkte. Die gebruik van verskillende mikrobiese suursels kan in die toekoms die produksie van ‘n diverse reeks hoë kwaliteit produkte wat plaaslik geproduseer en bemark kan word moontlik maak.
Okuda, Liria Hiromi. "Orthopoxvirus bovino: inquérito soroepidemiológico e caracterização de amostras pela técnica de PCR e RFLP." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-09122013-152339/.
Full textIn Brazil, cases of rash illness in cattle and humans have been reported in several regions whose causal agent is the vaccinia virus belonging to the genus Orthopoxirus (OPV) family Poxviridae. Classically, cowpox is caused by Cowpoxvirus, however, other poxviruses such as vaccinia virus may develop same clinical signs. In addition to compromising the production chain of milk, as it hampers milking, predisposes to mastitis and discard the product, also it is a zoonosis and is currently included in the differential diagnosis of vesicular disease. The origin of these cases as well as the epidemiology of the disease is still unknown. Thus, the aim of the present study 1) assess the serum prevalence of OPV in cattle herds circuit seven Vale do Paraíba and associate the possible risk factors involved in disease transmission, 2) identify and characterize the presence of OPV in samples suspected vesicular disease in the period 2007-2009, from various regions of Brazil using conventional techniques and molecular electron microscopy, virus isolation, PCR and RFLP; 3) Sequencing and phylogenetic analysis of the samples positive for OPV. For epidemiological survey were analyzed 76 properties in the region of Vale do Paraíba, São Paulo, randomly selected, totaling 619 animals, stratified in females more than two years. The serum prevalence of OPV in the Paraíba Valley was 32.3% (200/619) by virus neutralization. Positive association was found for presence of wild animals. The virological diagnosis were analyzed 227 samples of epithelium, negative for other vesicular diseases. Met frequency of 63.4% (144/227) positive for OPV in practically all regions of the country. RFLP analysis revealed default profile for the vaccinia virus. The sequencing of the isolates confirmed that vaccinia virus strain is circulating and is clustered in group I isolates of Brazilians vaccinia.
Georges, Agnès. "Chlamydia Trachomatis et tetracyclines : étude de souches récidivantes par PCR-RFLP du gène omp1." Bordeaux 2, 1994. http://www.theses.fr/1994BOR2P094.
Full textAlvarez, Vega Luis Guillermo. "Detección de Staphylococcus pseudintermedius y Staphylococcus aureus aislados de piodermias caninas mediante PCR-RFLP." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2019. https://hdl.handle.net/20.500.12672/11838.
Full textUniversidad Nacional Mayor de San Marcos (Lima). Vicerrectorado de Investigación y Posgrado
Tesis
Dlapalová, Kristýna. "Izolace a charakterizace autochtonních kvasinek z interspecifické odrůdy vinné révy." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217112.
Full textPereira, Lucas Carlos Gomes. "Importância dos polimorfismos C3435T e C1236T do gene de resistência a múltiplas drogas (MDR1) na resposta ao tratamento com mesilato de imatinib em pacientes com Leucemia Mielóide Crônica (LMC)." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/3100.
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In recent years, the evolution of health expenditures and specifically drugs, has worried governments. Among the various specialties, oncology is among those dealing with the greatest difficulties in the management of drug therapy. It is known that patients treated with various drugs have variability of response and susceptibility to drug toxicity. In present work, we study the role of Multiple Drug Resistance gene (MDR1) polymorphisms C1236T and C3435T frequencies and response to treatment with imatinib mesylate in 96 patients with chronic myeloid leukemia (CML). A total of 96 patients with CML were treated according to the Brazilian National Cancer Institute (INCA) guidelines and the blood samples were collected for genotyping. Genomic DNA was extracted and C1236T and C3435T polymorphisms genotyping was performed by the polymerase chain reaction with restriction fragment length polymorphism (PCR-RFLP), which detects a variation in length of a DNA fragment generated (370pb and 340pb) by a specific endonuclease in a specific site of the genome (HaeIII and MboI). Of the 96 CML samples, 31 samples were homozygous (CC), 13 homozygous (TT) and 52 heterozygous (CT) for exon 12 (1236). For the exon 26 (3435), 35 were homozygous (CC), 12 homozygous (TT) and 49 heterozygotes (CT). All frequencies for both polymorphisms were in Hardy-Weinberg equilibrium (p = 0.229 and q = 0.414). We found percentage association between polymorphisms and their distribution in different populations, and the response to treatment both cytogenetic and molecular difference was not statistically significant (p <0.05) when compared to age and sex presented response by patients and also no statistical difference (p <0,050). We conclude that the observed allele frequency for exons 1236 were 59.4% for C and 40.6% for T and the frequencies for the exon 3435 were 62.0% for C and 38.0% for T. That the relationship between the frequencies of polymorphisms of MDR1 in populations of different geographic locations, can provide tools that help in choosing a more appropriate and effective treatment of CML.
Neste estudo, o papel dos polimorfismos C1236T e C3435T do gene de Resistência a Múltiplas Drogas (MDR1) foram investigados em relação à frequência e a resposta ao tratamento com imatinibe em pacientes com leucemia mielóide crônica (LMC). Um total de 96 pacientes com LMC foram tratados de acordo com as diretrizes do Instituto Nacional do Câncer (INCA) e amostras de sangue foram coletadas para genotipagem do gene MDR (Resistência à Multiplas Drogas). O DNA genômico foi extraído e a genotipagem dos polimorfismos C1236T e C3435T foi realizada por meio da reação em cadeia da polimerase com fragmentos de restrição (PCR-RFLP), que detectou uma variação no comprimento de um fragmento de DNA gerado (370pb e 340pb) por uma endonuclease específica em um sítio específico do genoma (HaeIII e Mbol). Analisando as 96 amostras de pacientes para o polimorfismo no éxon 12 (1236) com LMC, 31 amostras apresentaram homozigose (CC), 13 homozigose (TT) e 52 heterozigose (CT). Para o estudo do polimorfismo no éxon 26 (3435), 35 foram homozigotas (CC), 12 homozigotas (TT) e 49 heterozigotas (CT). Todas as frequências para ambos os polimorfismos apresentaram-se em equilíbrio de Hardy-Weinberg (p = 0,229 e q = 0,414). Foi encontrada associação do percentual dos polimorfismos estudados em relação à distribuição dos mesmos em grupos de diferentes localizações geográficas, e sobre a resposta ao tratamento tanto citogenética e molecular, não houve diferença estatísticamente significante (p<0,05), quando foi comparado à idade e ao gênero apresentados pelos pacientes e a resposta também não houve diferença estatística (p<0,05). Conclui-se que as frequências alélicas observadas para o éxon 1236 foram de 59,4% para C e 40,6% para T e as frequências para o éxon 3435 foram de 62,0% para C e 38,0% para T e que a relação entre as frequências de polimorfismos de MDR1 nas populações de diferentes localizações geográficas, pode fornecer ferramentas que auxiliem na escolha de um tratamento mais adequado e eficaz da LMC.
Vitaliano, Sérgio Netto. "Isolamento e caracterização biológica e genotípica de Toxoplasma gondii em animais selvagens do Brasil." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-04102012-182312/.
Full textToxoplasma gondii is an intracellular protozoan parasite that infects almost all warmblooded animals, including humans. Although studies indicate that wild animals are frequently positive for antibodies anti-T. gondii, the role of wild life in the epidemiology of this parasite is not well understood nor the susceptibility of different wild species. The present study aimed to isolate T. gondii from free-living and captive wild birds and mammals from different locations from Brazil, to perform the genotipic characterization of T. gondii found in the analyzed tissue samples and to detect aintibodies anti-T. gondii in samples which were possible to obtain the serum. Serology was performed in 54 serum samples from different species of wild birds and mammals by the Modified Agglutination Test (MAT). From this total, 18 samples (five from birds and 13 from mammals) were seropositive for antibodies anti-T. gondii. For the isolation of the parasite, mice bioassay was performed. Brain and heart homogenates were submitted to peptic digestion and were inoculated in groups of five mice per animal sampled. Tissues of mice that died were examined for the presence of T. gondii. Mice were bled six weeks post-inoculation, and their sera were tested for anti-T. gondii antibodies by MAT. Surviving mice were euthanized two months after the inoculation and their brains were examined for the presence of T.gondii tissue cysts. T. gondii was isolated in 18 wild animals (16 from different species of mammals and two from birds) from different locations. T. gondii was isolated from one burrowing owl (Athene cunicularia), one lineated woodpecker (Dryocopus lienatus), three collared anteater (Tamandua tetradactyla), one hoary fox (Pseudalopex vetulus), one maned wolf (Chrysocyon brachyurus), one oncilla (Leopardus tigrinus), one opossum (Didelphis marsupialis), one paca (Cuniculus paca), three nine-banded armadillo (Dasypus novemcinctus), two six-banded armadillo (Euphractus sexcincticus) and three white-lipped peccary (Tayassu pecari). Sixteen of the 18 isolates were lethal to 100% of inoculated mice. The genotypic characterization was performed using 12 PCR-restriction fragment length polymorphism (RFLP) Primary tissue samples which were positive in a trial PCR were also submitted to genotypic characterization. It was possible, by PCR/RFLP, to obtain the complete genotype of 22 samples, 15 from isolates and seven from primary tissue samples. It was not possible to accomplish the complete genotypic characterization in three isolates; one burrowing owl, one opossum and one sixbanded armadillo. In this 22 samples characterized, a total of 17 different genotypes were found with 13 of them described for the first time. Mortality of infected mice was compared between the different alleles of the marker CS3 in the 15 genotypes originated from isolates, which seven were type I, six were type II and alleles u-1 and u-3 were found in one isolate each. All the isolates presented 100% of mortality in infected mice.
Andrade, Vanessa da Silva Silveira. "Polimorfismos genéticos, susceptibilidade e resposta ao tratamento em crianças portadoras de leucemia linfoblástica aguda." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/17/17135/tde-27082007-085802/.
Full textThe leukemias are the most common type of cancer in children, representing above 30% of all the pediatric malignancies. Among them, the acute lymphoblastic leukemia (ALL) is the most frequent, with a percentage of 75% of the total pediatric cases of leukemia. Its occurrence is closely related to the exposure to chemical, physical and biological environmental factors and so maternal factors either, such as drugs, alcohol even in the uterine phase or after birth. Despite all the investigations made until now, little is known about the leucemogenous process, in particular about the importance of herdable genetic susceptibility and environmental factors. The citochrome P450 enzymes, as well as other phase I and II enzymes are involved on the biotransformation process of a huge variety of xenobiotics on food, smoke, alcohol, drugs and chemical poluents. Polymorphisms on these genes have been associated to the increased susceptibility to different kind of adult cancers and hematological diseases in adults and child. Similarly, the differential capacity of children with ALL to metabolize carcinogen compounds and chemotherapy drugs, witch is influenced by polymorphisms on genes that encode metabolizing enzymes, can modify the individual risk of relapse and therapy response. Thus, molecular epidemiological investigations in children with acute leukemia became so important to help clinicians answer questions about the etiology and the right mechanisms that induce this malignance and about the adverse responses to therapy found in huge number of patients, trying to reach more specific treatments. So, the present study objective is to evaluate the polymorphism frequency on the following genes CYP2D6, EPHX1 and MPO (xenobiotic metabolizing genes) and TS gene (DNA synthesis) in patients with ALL and in controls individuals. We analyzed 132 patients and 300 health controls by PCR-RFLP technique. The CYP2D6*3 variant was more frequent on the case group. The EPHX1*2 and the triple repeat (3R) of TS gene were more frequent on the control group. The heterozygous genotype for the TS gene and the homozygous for the MPO gene were more prevalent on the female group, suggesting an association of these polymorphisms with the gender. We did not find any association with the studied polymorphisms and the response to therapy. Beyond these data, is it possible to suggest an association of these polymorphisms and the leukemia development susceptibility, emphasizing the importance of the polymorphism determination for prognosis and for the prevention, related to the increased risk of the diseases related to environmental exposure.
Michálek, Petr. "Sledování vlivu použité autochtonní kultury kvasinek na kvasný proces výroby vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217130.
Full textFialová, Lenka. "Izolace a identifikace kvasinek z vinice pro jejich možné využití k výrobě vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240584.
Full text陳子明 and Tsz-ming Chan. "Comparison of molecular epidemiological study on Mycobacterium tuberculosis using IS6110 RFLP and IS6110 PCR typing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31969689.
Full textChan, Tsz-ming. "Comparison of molecular epidemiological study on Mycobacterium tuberculosis using IS6110 RFLP and IS6110 PCR typing." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22029850.
Full textEsmerini, Patrícia de Oliveira. "Ocorrência e isolamento de Toxoplasma gondii e Neospora spp. em equídeos do Brasil." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/10/10134/tde-11062013-103048/.
Full textNeospora caninum is an obligate intracellular parasite, forming cysts that affect many domestic and wild animals, having greater importance in canine and bovine species due neurological and reproductive problems. Canids of the genus Canis are recognized as the only definitive hosts of N. caninum until the moment in which sexual phase occurs multiplication, resulting in the elimination of oocysts in the feces. Toxoplasma gondii is also a coccidian parasite responsible for a zoonotic disease of great importance and occurrence around the world. The asexual developmental stage of T. gondii occurs in mammals and birds, the intermediate hosts, resulting in the formation of cysts and the sexual stage occurs in the small intestine of definitive hosts, which are the felids, occurring oocysts formation. This study aimed to determine the seroprevalence of antibodies against Neospora spp. and Toxoplasma gondii in equids from different regions of Brazil and the isolation and genetic characterization of these parasites from equids tissue. Serology for T. gondii and Neospora spp. was performed in 453 serum samples by Immunofluorescence Antibody Test (IFAT). Of this total, eight (1.75%) samples (seven of donkeys and one of horse) were positive to Neospora spp. antibodies and 129 (28.47%) samples (82 donkeys, 32 horses, 15 mules) were T. gondii seropositive. For the isolation of T. gondii, bioassay was performed in mice. A sample of one donkey (Equus asinus) from Mossoró, RN, was obtained with two of the 20 inoculated mouse infected. The mouse died at day 16th and 17th post inoculation. The genotypic characterization of the isolate was performed by PCR-RFLP using 12 genotypic markers. Genotyping showed the genotype #60 TgCkBr220, already described in chickens from Fernando de Noronha, PE, Brazil. Due the impossibility of acquisition of tissue from Neospora spp seropositive equids, isolation of this coccidian by gerbil bioassay was not possible to be done.
Krátká, Veronika. "Výběr vhodných autochtonních kvasinek pro výrobu vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2014. http://www.nusl.cz/ntk/nusl-217062.
Full textŠkodová, Anna. "Identifikace kvasinek rodu Saccharomyces z listů, bobulí a moštu révy vinné." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2008. http://www.nusl.cz/ntk/nusl-216401.
Full textDel, Valle Luis J., Michael L. Jaramillo, Miguel Talledo, Maria J. Pons, Lidia Flores, Ruth L. Quispe, Pablo Ramírez, et al. "Development of a 16S rRNA PCR-RFLP Assay for Bartonella Identification: Applicability in the Identification of Species Involved in Human Infections." Horizon Research Publishing, 2014. http://hdl.handle.net/10757/322342.
Full textMazurowski, Artur. "Analiza wpływu polimorfizmu wybranych genów w odniesieniu do cech reprodukcyjnych loch ras polska biała zwisłoucha i wielka biała polska." Rozprawa doktorska, Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy, 2018. http://dlibra.utp.edu.pl/Content/1171.
Full textThe aim of the present was to identify polymorphism within the genes: RYR1, AREG, EGN, SPP1, GH, GH-RH, PIT1, BF, ZAR1 and to determine their genetic structure in two Polish sow breads: Polish Landrace and Polish Large White breeds. In addition the aim was to find associations between polymorphism of selected genes and reproductive traits in the studied groups of animals
Piza, Vanessa Mirabelli Toledo [UNESP]. "Detecção e diferenciação do vírus da bronquite infecciosa pela técnica de imunocaptura-RT-PCR E RFLP." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/94869.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Nesse estudo foi desenvolvido e aplicado o procedimento de imunocaptura para realizar a reação de transcrição reversa seguida pela reação em cadeia da polimerase (IC-RT-PCR) a fim de ser amplificada uma região 5'_ proximal do gene 81 do vírus da bronquite infecciosa (VBI) com 228 pb e de forma a fazer a detecção e a diferenciação desse vírus, comparando-se os resultados dessa metodologia com os obtidos na técnica convencional de RT-PCR. Todas as 11 estirpes do VBI testadas foram amplificadas pelas duas técnicas moleculares, enquanto que nenhum dos vírus heterólogos (Pneumovírus Aviário do grupo A e B, Vírus da Doença de Gumboro e o Vírus da Doença de Newcastle) ensaiados levaram a amplificação específica do gene 81. O limiar de detecção para a técnica de IC-RT-PCR foi idêntico ao do método de RT-PCR e correspondeu a 102.8 Doses Infectantes Embrionárias 50%. Para um total de 35 amostras de tecidos do trato respiratório testadas e provenientes de aves infectadas experimentalmente, 32 foram positivas pela técnica de IC-RT-PCR e também pela RT-PCR convencional, enquanto que o isolamento viral foi obtido para 22 dessas amostras. A análise do produto amplificado do gene 81 na IC-RT-PCR através da técnica de RFLP (restriction fragment length polymorphism), com as enzimas Alul e Mboll, permitiu a diferenciação das 5 estirpes de referências e dos 6 isolados de campo analisados em 4 diferentes genótipos, correspondentes às estirpes de referência M41, Connecticut, ou 8E-17, ou a um isolado de campo. Portanto, a técnica de IC¬RT -PCR demonstrou um grande potencial para ser aplicada no diagnóstico direto do VBI, apresentando vantagens sobre a técnica convencional de RT-PCR, as quais foram derivadas da combinação da especificidade da imunocaptura em fase sólida com a sensibilidade da reação de PCR, o que pode proporcionar ganho de tempo e menor custo para a manipulação de um maior número de amostras.
In this study, the immunocapture procedure followed by reverse transcription and polymerase chain reaction (IC-RT-PCR) technique was standardized and applied for the amplification of 5'- proximal pari of 81 gene of infectious bronchitis virus (IBV) in infected f1uid or tissue samples, which were collected from embryonating chicken eggs or experimentally infected birds. The results of this technique were compared with those obtained in conventional RT-PCR. Ali eleven IBV strains tested were amplified, while none of the heterologous avian viral pathogens (Groups A and B Avian Pneumovirus, Newcastle Disease Virus and Gumboro Disease Vírus) gave positive results. The limit of detection for IC-RT¬PCR was identical to the common RT-PCR and corresponded to 102.8 50% embryonic infectious doses. Thirty two out of thirty five respiratory tissue samples collected from experimentally infected chickens were positive by both molecular techniques (IC-RT-PCR I common RT-PCR), whereas the vírus isolation test detected IBV in twenty two of these samples. The AluL and Mobll RFLP analysis of the 228 bp amplicon generated from IC-RT-PCR led to the discrimination of the 5 reference strains and 6 field IBV isolates in four genotypes; which were associated to the M41, to Connecticut, ar to 8E-17 strain, or to a field isolate. Therefore, the IC-RT-PCR demonstrated in this study a high potential for the application in the direct diagnosis of IBV and has relevant advantages over the conventional RT¬PCR, because it combines the specificity of the immunocapture in a solid phase with the sensitivity of the PCR, providing simplicity, rapidity and low cost for the manipulation of a high number of samples.
Piza, Vanessa Mirabelli Toledo. "Detecção e diferenciação do vírus da bronquite infecciosa pela técnica de imunocaptura-RT-PCR E RFLP /." Jaboticabal : [s.n.], 2007. http://hdl.handle.net/11449/94869.
Full textBanca: Liana Brentano
Banca: Maria da Glória Buzinaro
Resumo: Nesse estudo foi desenvolvido e aplicado o procedimento de imunocaptura para realizar a reação de transcrição reversa seguida pela reação em cadeia da polimerase (IC-RT-PCR) a fim de ser amplificada uma região 5'_ proximal do gene 81 do vírus da bronquite infecciosa (VBI) com 228 pb e de forma a fazer a detecção e a diferenciação desse vírus, comparando-se os resultados dessa metodologia com os obtidos na técnica convencional de RT-PCR. Todas as 11 estirpes do VBI testadas foram amplificadas pelas duas técnicas moleculares, enquanto que nenhum dos vírus heterólogos (Pneumovírus Aviário do grupo A e B, Vírus da Doença de Gumboro e o Vírus da Doença de Newcastle) ensaiados levaram a amplificação específica do gene 81. O limiar de detecção para a técnica de IC-RT-PCR foi idêntico ao do método de RT-PCR e correspondeu a 102.8 Doses Infectantes Embrionárias 50%. Para um total de 35 amostras de tecidos do trato respiratório testadas e provenientes de aves infectadas experimentalmente, 32 foram positivas pela técnica de IC-RT-PCR e também pela RT-PCR convencional, enquanto que o isolamento viral foi obtido para 22 dessas amostras. A análise do produto amplificado do gene 81 na IC-RT-PCR através da técnica de RFLP (restriction fragment length polymorphism), com as enzimas Alul e Mboll, permitiu a diferenciação das 5 estirpes de referências e dos 6 isolados de campo analisados em 4 diferentes genótipos, correspondentes às estirpes de referência M41, Connecticut, ou 8E-17, ou a um isolado de campo. Portanto, a técnica de IC¬RT -PCR demonstrou um grande potencial para ser aplicada no diagnóstico direto do VBI, apresentando vantagens sobre a técnica convencional de RT-PCR, as quais foram derivadas da combinação da especificidade da imunocaptura em fase sólida com a sensibilidade da reação de PCR, o que pode proporcionar ganho de tempo e menor custo para a manipulação de um maior número de amostras.
Abstract: In this study, the immunocapture procedure followed by reverse transcription and polymerase chain reaction (IC-RT-PCR) technique was standardized and applied for the amplification of 5'- proximal pari of 81 gene of infectious bronchitis virus (IBV) in infected f1uid or tissue samples, which were collected from embryonating chicken eggs or experimentally infected birds. The results of this technique were compared with those obtained in conventional RT-PCR. Ali eleven IBV strains tested were amplified, while none of the heterologous avian viral pathogens (Groups A and B Avian Pneumovirus, Newcastle Disease Virus and Gumboro Disease Vírus) gave positive results. The limit of detection for IC-RT¬PCR was identical to the common RT-PCR and corresponded to 102.8 50% embryonic infectious doses. Thirty two out of thirty five respiratory tissue samples collected from experimentally infected chickens were positive by both molecular techniques (IC-RT-PCR I common RT-PCR), whereas the vírus isolation test detected IBV in twenty two of these samples. The AluL and Mobll RFLP analysis of the 228 bp amplicon generated from IC-RT-PCR led to the discrimination of the 5 reference strains and 6 field IBV isolates in four genotypes; which were associated to the M41, to Connecticut, ar to 8E-17 strain, or to a field isolate. Therefore, the IC-RT-PCR demonstrated in this study a high potential for the application in the direct diagnosis of IBV and has relevant advantages over the conventional RT¬PCR, because it combines the specificity of the immunocapture in a solid phase with the sensitivity of the PCR, providing simplicity, rapidity and low cost for the manipulation of a high number of samples.
Mestre
Trevisani, Natascha. "Genotipagem de isolados de Toxoplasma gondii obtidos de Gallus gallus naturalmente infectados no estado de Santa Catarina." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/878.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
Toxoplasmosis is a widely-distributed zoonosis that can infect warm-blooded animals, including birds and humans. Chickens, as well as other birds, can be considered indicators of environmental contamination. Toxoplasma gondii has a distinct clonal populational structure of three lineages (I, II and III) with high recombination, resulting in wide genotypic diversity in Brazil. Recent studies have demonstrated the importance of T. gondii genotyping regard the relationship between genotypes and distinct clinical signs in hosts. This study aimed to isolate and characterize T. gondii isolates from chickens (Gallus gallus) naturally infected in the state of Santa Catarina. Serum samples from 133 fowls raised in free-range conditions were analyzed by Immunofluorescence Assay (IFA ≥ 1:16) to detect IgG antibodies to T. gondii. Brain and heart tissues from 30 seropositives (IFA) chickens were used to isolate the parasite (bioassay in mice). The isolates were subjected to genotypic characterization by PCR-RFLP using 12 genetic markers (SAG1, 5 -3 SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, Apico and CS3). The results were classified according to the genotypes present in ToxoDB (http://toxodb.org/toxo/). Among 133 chicken serum samples analyzed, 84 (63.16%) were positive, with antibody titers ranging from 1:16 to 1:1024. Eleven isolates were obtained in the assay (Ck 3, Ck 32, Ck 35, Ck 56, Ck 63, Ck 89, Ck 102, Ck 103, Ck 125, Ck 127 and Ck 128). Genotyping revealed six genotypes, three of them were classified as #26, #53 and #120 and three were not previously described, denominated NEO 1, NEO 2 e NEO 3. In two isolates it was not possible to amplify all markers, but the 18S rRNA PCR-RFLP was performed for differentiation of other apicomplexans (Neospora spp. and Sarcocystis spp.) and it was confirmed as T. gondii. The present study confirms the high genetic diversity of the parasite observed in Brazil and this is the first mapping of genotypes obtained from naturally infected chickens in the state of Santa Catarina
A toxoplasmose é uma zoonose de ampla distribuição geográfica, que acomete animais homeotérmicos, incluindo as aves e o ser humano. Galinhas, assim como outras aves, são consideradas indicadoras de contaminação ambiental. Toxoplasma gondii possui uma estrutura populacional altamente clonal, constituída por três linhagens, designadas I, II e III com alta frequência de recombinação, o que resulta na grande diversidade genotípica observada no Brasil. Estudos recentes têm demonstrado a importância da genotipagem dos isolados de T. gondii considerando a relação de diferentes genótipos com as distintas patologias observadas nos hospedeiros. A realização do presente trabalho teve como objetivo isolar e caracterizar genotipicamente T. gondii de galinhas (Gallus gallus) naturalmente infectadas do estado de Santa Catarina. Soros de 133 aves criadas extensivamente foram analisados pela Reação de Imunofluorescência Indireta (RIFI ≥1:16) para detecção de anticorpos IgG contra T. gondii. Para o isolamento do parasito (bioensaio em camundongos) foram utilizados coração e cérebro de 30 aves soropositivas na RIFI. Os isolados obtidos foram submetidos à caracterização genotípica por meio da PCR-RFLP utilizando 12 marcadores genéticos (SAG1, 5 -3 SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, Apico e CS3). Os resultados obtidos foram classificados de acordo com os genótipos presentes no ToxoDB (http://toxodb.org/toxo/). Das 133 amostras de soros de galinhas analisadas, 84 (63,16%) foram positivas, com títulos de anticorpos variando de 1:16 a 1:1024. No bioensaio foram obtidos 11 isolados (Ck 3, Ck 32, Ck 35, Ck 56, Ck 63, Ck 89, Ck 102, Ck 103, Ck 125, Ck 127 e Ck 128). Pela análise genotípica revelou-se a presença de seis genótipos, três dos quais classificados como #26, #53 e #120 e três não descritos anteriormente, denominados NEO 1, NEO 2 e NEO 3. Em dois isolados não foi possível amplificar todos os marcadores, entretanto foi realizada a 18S rDNA PCR-RFLP, para diferenciar de outros apicomplexas (Neospora spp. e Sarcocystis spp.), e que confirmou estes como T. gondii. O presente trabalho ratifica a ampla diversidade genética do parasito verificada no Brasil sendo este o primeiro mapeamento dos genótipos do protozoário, a partir de galinhas naturalmente infectadas, que ocorrem no estado de Santa Catarina
Moreira, Abdiel Aparecido. ""Pesquisa de sítios de restrição enzimática em segmento da ORF K1 do genoma de herpesvírus humano tipo 8 (HHV-8) em isolados clínicos de São Paulo: relação com subtipos virais e implantação da técnica de RFLP (Restriction Fragment Length Polymorphism Analyses) para determinar subtipos virais"." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/9/9136/tde-01102004-164856/.
Full textAIDS epidemic has increased the incidence rates of Kaposi s sarcoma (KS) in all countries, and KS has been considered an AIDS-defining illness. Since the discovery of the human herpesvirus 8 (HHV-8), the etiological agent of KS, several studies have been conducted in order to characterize HHV-8 in all forms of KS: classic, endemic, iatrogenic, and epidemic. The HHV-8 genome presents a hypervariable region termed ORF K1 useful for virus subtyping. The objectives of the present study were to describe an alternative method for subtyping HHV-8, to compare this new method with DNA sequencing, and to use this method for HHV-8 subtyping. After cloning and sequencing a segment of the ORF K1 (VR1) in 50 HHV-8/DNA isolates from 36 Brazilian KS-AIDS patients, we searched for restriction enzymatic sites in this segment of DNA, and compared them with 18 sequences reported in the literature. Then we constructed the enzymatic restriction maps useful for discriminating all HHV-8 subtypes described up to now, and standardized a PCR-RFLP (restriction fragment length polymorphism analysis) using five commercial enzymes: Taq I, Nsi I, Hinf I, Hae III e Mse I. After comparing the results obtained by the two methods, we used PCR-RFLP for HHV-8 subtyping in 27 new HHV-8/DNA isolates. The results obtained by DNA sequencing and PCR-RFLP showed 100% of concordance, and allowed the use of PCR-RFLP for HHV-8 subtyping. Indeed, we disclosed that among KS-AIDS patients from São Paulo, subtypes A and C are more prevalent than subtype B. Although additional restriction sites were detected in some Brazilian HHV-8 isolates, the majority of them belonged to the predominant strains described in the literature. Interestingly, one probable case of HHV-8 subtype E was detected in a patient who presented disseminated KS and resistance to chemotherapy. Because of its high sensitivity, specificity, low cost, and rapid execution, PCR-RFLP could be used on a large scale, mostly in countries with poor resources and where KS is endemic.
Contieri, Marcelo Bittencourt. "Estudo comparativo entre os métodos genético e morfológico para a identificação entre espécies, utilizando o tecido ósseo como matéria." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/10/10133/tde-26012007-142544/.
Full textIn Legal Medicine, the identification of products from animals has been reaching a great importance. The great majority of samples that have been founded in a crime scene are pieces of tissues that are not easily destroyed, between them, the bone tissue. Because of their structure, composed by a mineral matrix, bone preserves morphologic characteristics and viable genetic materials. The objective of the present work had been: to characterize morphologically the complete tissue, thus adding more information regarding the animal species and the verification concerning the information in literature about the genetic identification, if they are trustworthy and available to reproduction. For this 10 femur of different species had been used. This material was picked the flesh off and its morphologic characteristics had been evaluated. After to carry through the macrocospic differentiation, the material was sawed in its diafisary portion, where we remove a piece for histologic evaluation and another one for genetic material study. The methods of histologic evaluation had been based on the morphology of the harvesian system, in the disposal of these in the cut surface, conformation of the Havers canal and in the characteristics of the osteocitos. The morphometric characteristics had been based only on the area of the haversiano canal and on the diameter of the Harvesiano System (osteon). The genetic evaluation had as study object the citocromo B, located in the mitochondrial DNA, which is better founded than the nuclear DNA, besides possessing mother inheritance that confers a great especify about animal specie. Using a pair of primers that selects a portion of 358 pairs of bases and three enzymes of restriction, HinfI, AluI and Hae III, it was possible to identify genetically the 10 studied species. This study disclosed that the methodology of animal identification for macrocospic, microscopical and genetic morphology can be reproduced and it has a great importance inside of the medical jurisprudence. However, the genetic method revealed more efficient and trustworthy when the work involves the use of very reduced bone pieces
Frota, Maria Zeli Moreira, and 92-98231-9393. "Avaliação de métodos de extração de DNA e de identificação de dermatófitos por análise de PCR-RFLP." Universidade Federal do Amazonas, 2011. http://tede.ufam.edu.br/handle/tede/5883.
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Dermatophytes comprise a group of filamentous fungi of great interest on public health because of their ability to parasitize keratinized tissues, such as skin, hair and nails, and for their wide distribution in the world. As a consequence of this parasitism, an infectious process of dermatophytosis is established, from which a variety of clinical manifestations can occur, affecting people of both genders and all age groups. Laboratory methods for mycological diagnosis do not always allow a clear an especific definition of the agent. In this study, different strategies for extraction of DNA, and molecular typing by PCR-RFLP, of seven dermatophyte species were assessed. Two target regions: ITS/rDNA and the topoisomerase II gene were evaluated, by testing three PCR protocols and three restriction enzymes (DdeI, HinfI, HaeIII). For the DNA extraction, the glass bead shaking technique for cell lysis, followed by Gustincich (1991) based mehod for DNA separation, demonstrated more advantages. Our results has demonstrated that the topoisomerase II gene is a suitable target region for identification of the seven major pathogenic dermatophyte fungal species, reinforcing previous studies, and pointed to a new PCR-RFLP protocol, which is based on a PCR of this gene using dPsD2 primer, followed by digestion of PCR products with HaeIII restriction enzyme.
Os dermatófitos compreendem um grupo de fungos filamentosos de grande interesse na área da saúde, devido à sua capacidade de parasitar os tecidos queratinizados, como a pele, pêlos e unhas, e à sua ampla distribuição no mundo. Como conseqüência desse parasitismo instala-se um processo infeccioso de dermatofitose, a partir do qual pode ocorrer uma diversidade de manifestações clínicas, acometendo pessoas de ambos os gêneros e de todos os grupos etários. Os métodos laboratoriais para o diagnóstico micológico nem sempre permitem uma clara definição do agente em nível de espécie. No presente estudo foram analisadas diferentes estratégias para a extração de DNA e para a identificação molecular por PCR-RFLP das principais espécies de dermatófitos. Duas regiões alvo, a região ITS/DNAr e o gene da topoisomerase II foram analisadas, testando-se três protocolos de PCR e três enzimas de restrição (DdeI, HinfI, HaeIII). Na extração do DNA, o método de lise utilizando pérolas de vidro e a separação do DNA com base no método de Gustincich (1991) demonstrou importantes vantagens. Nossos resultados demonstraram que o gene da topoisomerase II é uma região alvo adequada para identificação das sete principais espécies de fungos dermatófitos patogênicos, reforçando estudos anteriores, e apontaram para um novo protocolo de RFLP-PCR, que se baseia em uma PCR desse gene utilizando o primer dPsD2, seguido da digestão dos produtos obtidos com a enzima de restrição HaeIII.
Paulino, Rosangela Clara. "Detecção molecular de Giardia sp em amostras fecais e água : extração de DNA genomico, PCR e RFLP /." oai:ufpr.br:234179, 2005. http://200.17.209.5:8000/cgi-bin/gw_42_13/chameleon.42.13a?host=localhost%201111%20DEFAULT&sessionid=VTLS&function=CARDSCR&search=KEYWORD&pos=1&u1=12101&t1=234179.
Full textTese (doutorado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduaçao em Processos Biotecnológicos. Defesa: Curitiba, 2005
Inclui bibliografia
Área de concentração: Saude humana e animal
May, Duncan Robert. "Population genetics of Penaeus vannamei on the West Coast of Mexico." Thesis, Bangor University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312405.
Full textFREITAS, L. B. "Caracterização Molecular de Papilomavírus Humano (HPV) e Vírus Adeno-Associado (AAV) em Lesões Intraepiteliais de Colo Uterino: Um Estudo de Seguimento." Universidade Federal do Espírito Santo, 2014. http://repositorio.ufes.br/handle/10/4597.
Full textO câncer de colo uterino (CCU), cujo agente etiológico é o papilomavírus humano (HPV), é um dos tipos de câncer mais frequentes em mulheres em todo o mundo, não só em incidência como também em mortalidade. Alguns genótipos de HPV, denominados de alto risco (HR-HPV), e suas variantes gênicas, estão mais associados à indução de lesões malignas, sendo HPV16 e 18 os mais frequentes. Algumas infecções do trato genital podem atuar como cofatores da progressão carcinogênica do CCU, porém a infecção por vírus adeno-associado (AAV) parece estar inversamente relacionada, o que pode refletir em um papel protetor no desenvolvimento do CCU induzido pelo HPV. Portanto, este estudo objetivou investigar o papel da infecção mista AAV-HPV e das variantes oncogênicas de HPV na progressão das lesões intraepiteliais de colo de útero e acompanhar a eliminação /persistência viral em relação à progressão / regressão das lesões cervicouterinas. Exames citológicos foram realizados em amostras de espécime cervical, coletadas em dois momentos, de mulheres atendidas no Hospital Universitário Cassiano Antonio Moraes HUCAM e seguiram para tratamento conforme preconizado. DNA foi extraído pelo kit comercial QIAamp® DNA Mini Kit, seguindo instruções do fabricante. DNA de AAV foi investigado por PCR e nPCR e, de HPV, por PCR e Captura Híbrida® (CH). Genotipagem de AAV e HPV foram realizadas por RFLP e RLB, respectivamente. Dos casos encaminhados ao ambulatório de colposcopia, 57,3% tiveram citologia normal, 23,1% lesões de baixo grau e 19,6% lesões de alto grau. Dos casos com citologia normal, 78% permaneceram normais, enquanto 22% progrediram à lesão; dos casos com lesão de baixo grau, 74% regrediram para citologia normal, enquanto 78,6% dos casos com lesão de alto grau apresentaram lesão de baixo grau ou citologia normal na segunda coleta. Foram positivas para HPV, 56% e 36,5% das amostras da primeira e segunda coletas, respectivamente. Foi observada boa correlação (kappa= 0,66) entre os testes de PCR e CH para detecção de HPV. Os HR-HPV foram detectados em mais de 90% das amostras de ambas as coletas, sendo os mais frequentes os HPV16, 58, 51, 52 e 53. Variante não-europeia esteve associada ao desenvolvimento de lesão cervical de alto grau, enquanto a presença de AAV foi inversamente relacionada à progressão da lesão cervical induzida por HPV.
Šerý, Filip. "Sledování vlivu použité komerční kultury kvasinek na kvasný proces výroby vína." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2013. http://www.nusl.cz/ntk/nusl-216920.
Full textMarkowska, Agnieszka Magdalena. "Polimorfizm genu białka prionowego owiec w kodonach: 127, 141, 151, 171 i 198." Rozprawa doktorska, [Nakł.aut.], 2013. http://dlibra.utp.edu.pl/Content/561.
Full textCabral, Cynthia Hatsue Kitayama. "Determina??o de hapl?tipos do gene ?s em portadores de anemia falciforme." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18543.
Full textConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Haplotypes linked to the ?S gene represent patterns of DNA polymorphisms along chromosome 11 of individuals bearing the ?S gene. Analysis of haplotypes, in addition to serving as an important source for anthropological studies about the ethnic origin of a population, contributes to a better understanding of the variations in clinical severity of sickle cell anemia. The aim of the present study was to determine ?S gene haplotypes in a group of patients with sickle cell anemia treated at the Dalton Barbosa Cunha Hematology Center (Hemonorte) in Natal, Brazil and the Oncology and Hematology Center in Mossor?, Brazil. Blood samples were obtained from 53 non-related patients (27 males and 26 females), aged between 3 months and 61 years (mean age: 16.9 ? 12.1 years). Laboratory analyses consisted of the following: erythrogram, reticulocyte count, hemoglobin electrophoresis at alkaline pH, measurement of hemoglobin A2 and Fetal hemoglobin, solubility test and molecular analysis to determine ?S gene haplotypes. DNA samples were extracted by illustra blood genomicPrep Mini Spin kit and ?S gene haplotypes were determined by PCR-RFLP, using Xmn I, Hind III, Hinc II and Hinf I restriction enzymes for analysis of six polymorphic restriction sites in the beta cluster. Of 106 ?S chromosomes studied, 75.5% were Central African Republic (CAR) haplotype, 11.3% Benin (BEN) and 6.6% Cameroon (CAM). The atypical haplotypes had a frequency of 6.6%. More than half the patients (58.5%) were identified as CAR/CAR genotype carriers, 16.9% heterozygous CAR/BEN, 13.2% CAR/CAM and 1.9% BEN/BEN. Patients with atypical haplotype in one or two chromosomes accounted for 9.5% (CAR/Atp, BEN/Atp and Atp/Atp). The genotype groups showed no statistically significant difference (p < 0.05) in their laboratory parameters. This is the first study related to ?S haplotypes conducted in state of Rio Grande do Norte and the higher frequency of Cameroon halotype found, compared to other Brazilian states, suggests the existence of a peculiarity of African origin
Os hapl?tipos do gene ?s representam padr?es de polimorfismos do DNA ao longo do cromossomo 11 de indiv?duos portadores do gene ?s. A an?lise dos hapl?tipos, al?m de servir como uma fonte importante para estudos antropol?gicos acerca da origem ?tnica de uma popula??o, colabora para uma melhor compreens?o da varia??o de gravidade cl?nica da anemia falciforme. O presente estudo teve como objetivo determinar os hapl?tipos do gene ?s em um grupo de pacientes portadores de anemia falciforme atendidos no Ambulat?rio de Hematologia do Hemocentro Dalton Barbosa Cunha (Hemonorte) - Natal/RN e no Centro de Oncologia e Hematologia de Mossor?/RN. Foram obtidas amostras sang??neas de 53 pacientes n?o aparentados (27 do sexo masculino e 26 do sexo feminino), com idade variando entre 3 meses e 61 anos (m?dia de idade: 16,9 ? 12,1 anos). As an?lises laboratoriais consistiram em: eritrograma, contagem de reticul?citos, eletroforese de hemoglobina em pH alcalino, dosagem de hemoglobinas A2 e Fetal, teste de solubilidade e an?lise molecular para determin??o dos hapl?tipos ?s. O DNA foi extra?do pelo kit illustra blood genomicPrep Mini Spin e a determina??o dos hapl?tipos do gene S foi realizada por PCR-RFLP, utilizando as endonucleases de restri??o Xmn I, Hind III, Hinc II e Hinf I para an?lise de 6 s?tios polim?rficos do cluster ?. Os resultados observados mostraram, em rela??o ao n?mero de cromossomos, o predom?nio do hapl?tipo CAR (75,5%), frente aos hapl?tipos Benin (11,3%), e Camar?es (6,6%). Os hapl?tipos at?picos tiveram freq??ncia de 6,6%. Com rela??o aos gen?tipos, mais da metade dos pacientes (58,5%) foram identificados como portadores do gen?tipo CAR/CAR. O segundo mais freq?ente foi o CAR/BEN (16,9%), seguido de CAR/CAM (13,2%) e BEN/BEN (1,9%). Os pacientes com hapl?tipo at?pico em um ou nos dois cromossomos representaram 9,5% (CAR/Atp, BEN/Atp e Atp/Atp). N?o houve diferen?a estatisticamente significativa das m?dias dos par?metros laboratoriais entre os diferentes grupos de gen?tipos comparados. O presente trabalho ? o primeiro estudo relacionado aos hapl?tipos ?s realizado no estado do Rio Grande do Norte e o encontro de uma maior freq??ncia do hapl?tipo Camar?es, em rela??o a outros estados do Brasil, sugere a exist?ncia de uma peculiaridade da origem africana no estado
Masoudi, Mehrnoush. "Identification of variants within the coding region and 5'-flanking region of the k-casein encoding gene in Holsteins using PCR-RFLP and PCR-SSCP analyses." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23409.
Full textMohamed, Ahmed Abdel-Rady Mahmoud. "Bestimmung der Wirtstierarten in Blutmahlzeiten von Tsetsefliegen (Diptera: Glossinidae) mittels der Polymerasekettenreaktion und Restriktionsfragment-Längenpolymorphismus- Analyse (PCR-RFLP)." Berlin : Mensch-und-Buch-Verl, 2004. http://www.diss.fu-berlin.de/2004/175/index.html.
Full textSchlögl, Paulo Sérgio. "Análise da diversidade genética em regiões não codificadoras de DNAs de cloroplastos em araucaria angustifolia por PCR-RFLP." Florianópolis, SC, 2000. http://repositorio.ufsc.br/xmlui/handle/123456789/79098.
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Caracteriza a variabilidade genética em regiões não codificadoras dos genomas de cloroplasto de Araucaria angustifolia, em populações naturais do Estado de Santa Catarina, utilizando a reação de PCR seguida por RFLP. Estuda como é distribuida a diversidade nas populações da espécie, com o objetivo de fornecer dados úteis para uso em estratégias de conservação e melhoramento genético.
Corcelle, Benjamin. "Mise au point et évaluation d'un test pour le diagnostic des hémoglobinoses S et C par PCR-RFLP." Nantes, 2001. http://www.theses.fr/2001NANT012P.
Full textPaiva, Samuel Rezende. "Caracterização da diversidade genética de ovinos no Brasil com quatro técnicas moleculares." Universidade Federal de Viçosa, 2005. http://www.locus.ufv.br/handle/123456789/10554.
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Fundação de Amparo a Pesquisa do Estado de Minas Gerais
Os ovinos foram introduzidos no Brasil principalmente pelos portugueses e espanhóis durante o processo de colonização. Por motivos sócio-culturais, a criação desses animais foi considerada no Brasil uma atividade de categoria inferior, de modo que foram criados somente para subsistência. Esse descaso fez com que os produtos derivados de ovinos (lã, carne, pele) perdessem competitividade frente aos produtores de outros países. Para que ocorra uma mudança desse cenário, é necessária uma profunda modificação logística de todas as classes envolvidas na produção de ovinos, visto que os ovinos representam, principalmente nas regiões Sul e Nordeste, uma fonte de recursos importante do ponto de vista social, cultural e histórico. O objetivo desse trabalho foi realizar um conjunto de técnicas moleculares que permitam a caracterização genética das principais raças e/ou estoques de ovinos naturalizados do Brasil de modo a.oferecer subsídios para a elaboração de programas estratégicos de conservação e melhoramento desta espécie. Foram utilizadas quatro classes de marcadores moleculares (RAPD, microssatélites, sequenciamento do DNA mitocondrial e do cromossomo Y) em até 11 raças de ovinos naturalizadas e comerciais existentes no Brasil. Os resultados permitiram identificar padrões de estruturação genética existentes nessa espécie no Brasil, bem como demonstraram a viabilidade de aplicação de marcadores moleculares para: 1) monitoramento genético de rebanhos; 2) testes de exclusão de paternidade para controle de pedigrees; 3) origem geográfica de raças ou populações; 4) inferências filogenéticas intra- específicas.
In Brazil, sheep breeds were introduced during the colonization process by Spanish and Portuguese settlers. Social and cultural factors determined that sheep rearing was considered a low-status activity, and therefore, sheep were raised only to meet subsistence goals. The outcome of this is that products derived from sheep such as wool, meat and hides are non competitive in the international market. A change of this scenario requires a profound logistic alteration involving all sheep production-related groups, particularly in the northern and southern regions in the country, where sheep are of high cultural, social and historical relevance. The objective of this work was to characterize the main naturalized Brazilian sheep breeds using molecular markers. Our results will be a baseline for the development of management and conservation programs. Four kinds of molecular markers were used (RAPD, microsatellites, and sequences of mtDNA and Y chromosome) and were applied on 11 breeds of naturalized and commercial breeds. Results identified the genetic structure of the species in the Country and demonstrated the efficiency of molecular markers for 1) herd genetic monitoring, 2) paternity (exclusion) analyses, 3) for determining the geographic origin of breeds and populations, and 4) for investigating within-species phylogenies.
Sadel, Peter. "Identifikace kvasinek z interspecifické odrůdy vinné révy." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240551.
Full textArnaldo, Marcela. "Relações entre fluxos de óxido nitroso (N2O) com umidade e genes associados à desnitrificação em floresta e sistemas agrícolas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/64/64133/tde-05112014-152017/.
Full textNitrous oxide (N2O) is an important greenhouse gas (GHG) and, in terrestrial ecosystems, it is mainly produced by denitrification. This process occurs under anaerobic conditions and, therefore, is strongly stimulated by the increase of the soil moisture content. However, soils under different uses may exhibit distinct N2O emission rates, even when they have the same moisture content. It is still not clear whether this is due solely to the fact that they differ in relation to physical and chemical properties that affect the activity of denitrifying organisms or whether this is also due to differences in the size of their populations. The aim of this work was to evaluate the relations between N2O fluxes, moisture and abundance of bacterial genes involved in denitrification process (nirK, norB e nosZ) in soil samples from forest, pasture and sugarcane field, through a microcosm experiment. These samples were collected at Fazenda Capuava, located in Piracicaba, SP. Microcosms established from them were maintained with different moisture contents (original and adjusted to achieve 60% and 90% of field capacity) and incubated at 30 °C for 30 days. During the incubation period, the N2O fluxes from soils were analyzed by gas chromatography. Soil samples from microcosms, collected before and after application of the treatments, were compared regarding the structure of their bacterial communities, by using T-RFLP technique, and the abundance of 16S rRNA, nirK, norB and nosZ genes, through qPCR technique. Only samples that had their moisture content adjusted to 90% of field capacity exhibited significant increases in N2O production. In these samples, changes in the structure of bacterial communities and in the copy numbers of norB and nosZ genes were also detected. Only the latter gene, however, showed a positive correlation with soil moisture. The abundance of the quantified genes showed no significant correlations with the gas emission rates. On the other hand, the cumulative N2O emissions were positively correlated with the amounts of denitrifying genes initially present in the samples. These genes were more abundant in pasture and forest soils, which had higher levels of organic matter, carbon, nitrogen, nitrate and clay than those from sugarcane cropping area. These results indicate that soil water content affects the N2O emission rates. However it is not due to changes in the abundance of bacteria involved in the process, such as those that bear the nirK, norB and nosZ genes. Apparently, it is the size of these organisms\' populations that determines the amount of GHG that the soil is able to produce.
Ayala, Claudia de Oliveira. "Sorologia de antígenos flagelares de amostras de Escherichia coli Enteropatogênicas (EPEC) e E. coli produtoras da Toxina de Shiga (STEC) isoladas de diferentes animais e análise comparativa do gene fliC por PCR-RFLP." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-02022010-100052/.
Full textThe Escherichia coli species consists of a group of typically non-pathogenic bacteria present in the intestinal tract of humans and animals. Strains are serotyped according to their O (somatic), H (flagellar) and K (capsular) surface antigens, in order to distinguish these microorganisms from the non-pathogenic members of the intestinal microbiota. The flagellar antigen corresponding to the filament is formed by the polymerization of the flagellin, codified by the fliC gene. This study employed the PCR-RFLP technique to analyze flagellar antigen patterns from 112 EPEC and STEC strains. Fourteen strains have not amplified the fliC gene, 17 had their flagellar antigen determined only by the PCR-RFLP and 75 strains had their flagellar antigen confirmed by this technique. Three H antigens with irregular patterns were cloned and sequenced. After sequencing, insertions and deletions of nucleotides were discovered. So far, few studies used a significant number of STEC and EPEC strains originated from different animals to determine H antigens employing the PCR-RFLP technique of the fliC gene. According to the findings of this study, we assumed that PCR-RFLP of the fliC gene is faster, less laborious and more efficient than classic serotyping methodology.
Beníčková, Romana. "Sledování vlivu použití autochtonní kvasinky při výrobě vína v podmínkách vinařství." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2014. http://www.nusl.cz/ntk/nusl-217061.
Full textSanches, Letícia da Cruz [UNESP]. "Caracterização das espécies de leishmania em sangue periférico de cães por PCR-RFLP NA área endêmica de Bauru/SP." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/128128.
Full textLeishmaniasis is a major public health problem in the world. The protozoa of the genus Leishmania has worldwide distribution and epidemiology of the disease depends on the characteristics of the parasites. Leishmaniasis are divided into visceral leishmaniasis and cutaneous. The dog plays a key role in the transmission of L. infantum to humans and in the epidemiology of the disease. Due to the adaptation of Leishmania to new hosts or vectors is important to know the current etiologic agent in dogs. Molecular techniques have been used for the diagnosis of leishmaniosis. The PCR-RFLP detects and distinguishes the different species of the parasite. The objective of this study was to identify the Leishmania species found in 103 samples of peripheral blood of dogs naturally infected with this protozoan, the city of Bauru - SP. For the diagnosis of leishmaniosis was determined by parasitological examination, indirect ELISA and PCR was performed. The determination of Leishmania species the DNA amplified intergenic region ITS1 was digested with the restriction enzyme HaeIII. Positive samples for Leishmania ssp. showed an identical restriction profile of L. amazonensis in 77/103 samples, 17/103 were similar to L. infantum, and 09/103 were mixed profile. In conclusion, we identified L. amazonensis greater number of dogs than L.infantum in Bauru city, SP
Sanches, Letícia da Cruz. "Caracterização das espécies de leishmania em sangue periférico de cães por PCR-RFLP NA área endêmica de Bauru/SP /." Araçatuba, 2014. http://hdl.handle.net/11449/128128.
Full textAbstract:Leishmaniasis is a major public health problem in the world. The protozoa of the genus Leishmania has worldwide distribution and epidemiology of the disease depends on the characteristics of the parasites. Leishmaniasis are divided into visceral leishmaniasis and cutaneous. The dog plays a key role in the transmission of L. infantum to humans and in the epidemiology of the disease. Due to the adaptation of Leishmania to new hosts or vectors is important to know the current etiologic agent in dogs. Molecular techniques have been used for the diagnosis of leishmaniosis. The PCR-RFLP detects and distinguishes the different species of the parasite. The objective of this study was to identify the Leishmania species found in 103 samples of peripheral blood of dogs naturally infected with this protozoan, the city of Bauru - SP. For the diagnosis of leishmaniosis was determined by parasitological examination, indirect ELISA and PCR was performed. The determination of Leishmania species the DNA amplified intergenic region ITS1 was digested with the restriction enzyme HaeIII. Positive samples for Leishmania ssp. showed an identical restriction profile of L. amazonensis in 77/103 samples, 17/103 were similar to L. infantum, and 09/103 were mixed profile. In conclusion, we identified L. amazonensis greater number of dogs than L.infantum in Bauru city, SP
Orientador:Valéria Marçal Félix de Lima
Banca:Alex Akira Nakamura
Banca:José Eduardo Tolezano
Mestre
Vekris, Antoine. "Développement d'applications de la PCR et d'analyses RFLP à la détection et au typage d'Ureaplasma urealyticum et Chlamydia trachomatis." Bordeaux 2, 1993. http://www.theses.fr/1993BOR28272.
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