Dissertations / Theses on the topic 'Drugs administration'
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Weise-Kelly, Lorraine Ann. "Drug-induced ataxia : effect of the self-administration contingency /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0030/NQ66245.pdf.
Full textCai, Bing. "Ceramic Materials for Administration of Potent Drugs." Doctoral thesis, Uppsala universitet, Tillämpad materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-245031.
Full textCopping, N. M. "Studies on the rectal administration of drugs." Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372664.
Full textEspefält, Westin Ulrika. "Olfactory Transfer of Analgesic Drugs After Nasal Administration." Doctoral thesis, Uppsala universitet, Institutionen för farmaci, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7829.
Full textEspefält, Westin Ulrika. "Olfactory transfer of analgesic drugs after nasal administration /." Uppsala : Acta Universitatis Upsaliensis Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7829.
Full textLukashevych, I. V. "Efficacy of some herbal drugs administration for patients with urolithiasis." Thesis, БДМУ, 2017. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/17098.
Full textPopova, M. "The risk of avitaminosis due to administration of antivitamin drugs." Thesis, Київський національний університет технологій та дизайну, 2019. https://er.knutd.edu.ua/handle/123456789/14395.
Full textMauludin, Rachmat [Verfasser]. "Nanosuspensions of poorly soluble drugs for oral administration / Rachmat Mauludin." Berlin : Freie Universität Berlin, 2009. http://d-nb.info/102346568X/34.
Full textHu, Leijun. "Suramin pharmacokinetics after regional or systemic administration." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1114449390.
Full textFalcone, Pin Bruno Nicolás. "Physicochemical properties of inhalation drugs." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648175.
Full textSorensen, Lene. "Implementation of medication reviews and use of dose administration aids for patients at risk of medication misadventure /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16806.pdf.
Full textBenjamin, Daniel E. (Daniel Ernest). "The effects of sustained gepirone administration on rodent brain 5-HT receptors and behavioral analogues of anxiety." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc798440/.
Full textWong, Ka Yeung Mark. "Drug clearance mechanisms and chemotherapy response." Thesis, The University of Sydney, 2007. https://hdl.handle.net/2123/28094.
Full textGersper, Beth E. "NETWORK ANALYSIS OF DRUGS OF ABUSE IN OHIO AND POLICY IMPLICATIONS." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron156761393419992.
Full textWarne, Rhonda J. "Trends in the use of psychotropic medication in residential aged care facilities prior to and after the advent of an accredited pharmacist conducted medication review service." Thesis, The University of Sydney, 2001. https://hdl.handle.net/2123/27725.
Full textSullivan, Donald L. "Direct-to-consumer advertising of prescription drugs : measures of effectiveness /." Connect to resource, 1996. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1242751906.
Full textBajpai, Sanjay Kumar. "Formulary decision making in health maintenance organizations involving non-steroidal anti-inflammatory drugs /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487777901657504.
Full textMunday, Dale Leslie. "Design, development and evaluation of encapsulated oral controlled release theophylline mini-tablets." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1003255.
Full textBellebaum, Katherine Louise. "The relationship between nurses' work hours, fatigue, and occurrence of medication administration errors." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1222114579.
Full textChrisinger, Laura. "Policies and practices associated with medication administration in Ohio public elementary schools." Connect to this title online, 2004. http://hdl.handle.net/1811/180.
Full textTitle from first page of PDF file. Document formatted into pages; contains 24 p.; also includes graphics (some col.). Available online via Ohio State University's Knowledge Bank. Includes bibliographical references (p. 20-21). Available online via Ohio State University's Knowledge Bank.
Hansen, Tue. "Spray-dried o/w-emulsions for oral delivery of poorly soluble drugs /." Cph. : The Danish University of Pharmaceutical Sciences, Department of Pharmaceutics, 2004. http://www.dfh.dk/phd/defences/tuehansen.htm.
Full textPatel, Fathima. "The development and assessment of a generic carbamazepine sustained release dosage form." Thesis, Rhodes University, 2006. http://eprints.ru.ac.za/1339/.
Full textHeard, Sharon D. "Evaluation of Bureau Practice for Illegal Drugs Use Among Teens." ScholarWorks, 2011. https://scholarworks.waldenu.edu/dissertations/1126.
Full textCabrera, Brooke A. "The impact of direct-to-consumer (DTC) prescription drug advertising on the pharmaceutical salesperson/doctor relationship : a pilot study." Honors in the Major Thesis, University of Central Florida, 2003. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/310.
Full textBachelors
Business Administration
Marketing
Fütterer, Sören [Verfasser]. "Nanoparticular iron complex drugs for parenteral administration - physicochemical characterization, biological distribution and pharmacological safety / Sören Fütterer." Mainz : Universitätsbibliothek Mainz, 2014. http://d-nb.info/1054682879/34.
Full textÖhman, Daniel. "Bioanalytical development for application in therapeutic drug monitoring : focus on drugs used in psychiatry /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/med775s.pdf.
Full textKomperlla, Mahesh Kumar. "The formulation and evaluation of rapid release tablets manufactured from Artemisia Afra plant material." Thesis, University of the Western Cape, 2004. http://etd.uwc.ac.za/index.php?module=etd&.
Full textInfusions, decoctions, alcoholic preparations and other dosage forms of Artemisia afra are frequently used in South African traditional medicine. Generally when these preparations are made without applying good manufacturing practices they do not meet microbial quality control standards, safety and toxicity criteria and encourage poor patients compliance. To overcome the aforementioned disadvantages of traditional dosage forms a sold dosage form, i.e. a table might be recommended. The first objective of this study was to formulate and manufacture a rapid release tablet dosage of Artemisia afra that would contain an amount of plant material equivalent to that found in its traditional liquid dosage forms and that would meet conventional pharmaceutical standards. The second objective was to conduct a pilot study to obtain a preliminary profile of the bioavailability of select flavonoids presents in both the tablet and traditional liquid preparation of Artemisia afra in humans.
Turner, Gordon Neil. "Organisational climate and standards of nursing care : the administration of depot neuroleptic drugs to psychiatric out-patients." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/21576.
Full textHowerton, Franklin Ray. "Veteran dedication makes them more efficient in receiving directions on medication, driving veterans to be more medication compliant." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1749.
Full textBreitsamer, Michaela [Verfasser], and Gerhard [Akademischer Betreuer] Winter. "Lipid-based depots : manufacturing, administration and interactions of protein drugs with lipid formulations / Michaela Breitsamer ; Betreuer: Gerhard Winter." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1193049105/34.
Full textSadideen, Faddy. "An investigation of changes in NMDA-receptor evoked monoamine efflux following administration of antidepressant drugs : a microdialysis study." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404595.
Full textBredenberg, Susanne. "New Concepts in Administration of Drugs in Tablet Form : Formulation and Evaluation of a Sublingual Tablet for Rapid Absorption, and Presentation of an Individualised Dose Administration System." Doctoral thesis, Uppsala University, Department of Pharmacy, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3433.
Full textThis thesis presents two new concepts in oral drug administration and the results of evaluation of some relevant formulation factors.
Investigation into improving the homogeneity of mixtures for tableting indicated that it may be possible to obtain interactive dry mixtures of micronised drugs containing drug proportions as low as 0.015% w/w. By studying the relationship between disintegration time and tensile strength, it was found that the microstructure surrounding the disintegrant particles may influence the disintegration process. Therefore, avoidance of excipients which are highly deformable or very soluble in water will result in more rapid disintegration. Further, it is possible to increase the bioadhesive properties of a non-bioadhesive carrier material by forming interactive mixtures containing a fine particulate bioadhesive material.
The new sublingual tablet concept presented is based on interactive mixtures consisting of a water-soluble carrier covered with fine drug particles and a bioadhesive component. With this approach, it is possible to obtain rapid dissolution in combination with bioadhesive retention of the drug in the oral cavity. Clinical data indicate that this allows rapid sublingual absorption while simultaneously avoiding intestinal absorption.
An individualised dose administration system is also presented. This system is based on the use of standardised units (microtablets), each containing a sub-therapeutic amount of the active ingredient. The required dose is fine-tuned by electronically counting out a specific number of these units using an automatic dose dispenser. A patient handling study supported the suggestion that the dosage of some medications can be more easily and safely individualised for each patient with this method than by using traditional methods of mixing different standard tablet strengths or dividing tablets.
Sachikonye, Tinotenda Chipo Victoria. "Development and assessment of minocycline sustained release capsule formulations." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1013127.
Full textKhamanga, Sandile Maswazi Malungelo. "Formulation and assessment of verapamil sustained release tablets." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1018236.
Full textReich, Heather M. "Medication management among Medicare eligible Ball State retirees." Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1399188.
Full textFisher Institute for Wellness and Gerontology
Thomson, William Murray. "Medications, dry mouth and dental caries among older people : a longitudinal study /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09pht4858.pdf.
Full textKennedy-Tucker, Patricia Elaine. "Direct-to-Consumer Advertising of Drugs and Patients' Health Care Seeking Behaviors." ScholarWorks, 2014. https://scholarworks.waldenu.edu/dissertations/42.
Full textKieser, Leith Faye. "Formulation and assessment of monolithic beta blocker sustained release tablets prepared by direct compression." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1003242.
Full textChu, Leonard Yi. "Dissolving microneedles for cutaneous drug and vaccine delivery." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37177.
Full textSari, Peyami, and n/a. "Isotropic medium chain mono- and diglyceride systems : vehicles for subcutaneous injection in sheep." University of Otago. School of Pharmacy, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070405.160443.
Full textEduardo, Da Silva Acarilia. "Nanotechnological delivery systems for the oral administration of active molecules : Polymeric microparticles and microemulsions applied to anti-inflammatory and anti-infectious drugs." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00856598.
Full textSilva, Acarilia Eduardo da. "Nanotechnological delivery systems for the oral administration of active molecules: Polymeric microparticles and microemulsions applied to anti-inflammatory and anti-infectious drugs." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13309.
Full textConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
This thesis was devoted to the development of innovative oral delivery systems for two different molecules. In the first part, microparticles (MPs) based on xylan and Eudragit? S- 100 were produced and used to encapsulate 5-aminosalicylic acid for colon delivery. Xylan was extracted from corn cobs and characterized in terms of its physicochemical, rheological and toxicological properties. The polymeric MPs were prepared by interfacial cross-linking polymerization and spray-drying and characterized for their morphology, mean size and distribution, thermal stability, crystallinity, entrapment efficiency and in vitro drug release. MPs with suitable physical characteristics and satisfactory yields were prepared by both methods, although the spray-dried systems showed higher thermal stability. In general, spraydried MPs would be preferable systems due to their thermal stability and absence of toxic agents used in their preparation. However, drug loading and release need to be optimized. In the second part of this thesis, oil-in-water microemulsions (O/W MEs) based on mediumchain triglycerides were formulated as drug carriers and solubility enhancers for amphotericin B (AmB). Phase diagrams were constructed using surfactant blends with hydrophiliclipophilic balance values between 9.7 and 14.4. The drug-free and drug-loaded MEs presented spherical non-aggregated droplets around 80 and 120 nm, respectively, and a low polydispersity index. The incorporation of AmB was high and depended on the volume fraction of the disperse phase. These MEs did not reduce the viability of J774.A1 macrophage-like cells for concentrations up to 25 μg/mL of AmB. Therefore, O/W MEs based on propylene glycol esters of caprylic acid may be considered as suitable delivery systems for AmB
Esta tese teve como objetivo o desenvolvimento de novos sistemas de libera??o para duas mol?culas distintas. Na primeira parte, micropart?culas ? base de xilana e Eudragit? S-100 foram produzidas para encapsular ?cido 5-aminosalic?lico visando ? libera??o c?lonespec?fica. A xilana foi extra?da de sabugos de milho e caracterizada quanto ?s suas propriedades f?sico-qu?micas, reol?gicas e toxicol?gicas. Em seguida, dois m?todos de microencapsula??o foram utilizados: reticula??o interfacial polim?rica e secagem por aspers?o. Os sistemas produzidos foram caracterizados quanto ? morfologia, tamanho m?dio e distribui??o, estabilidade t?rmica, cristalinidade, taxa de encapsula??o e libera??o do f?rmaco in vitro. Foram obtidas micropart?culas com adequadas caracter?sticas f?sicas e rendimentos satisfat?rios atrav?s dos dois m?todos, embora os sistemas aspergidos tenham apresentado maior estabilidade t?rmica e sejam considerados mais interessantes devido a sua maior estabilidade t?rmica e aus?ncia de agentes t?xicos. No entanto, ajustes precisam ser feitos para melhorar a encapsula??o e libera??o do f?rmaco. Na segunda parte, microemuls?es do tipo ?leo em ?gua (MEs O/A) com base em triglicer?deos de cadeia m?dia (MCT) foram produzidas visando ao carreamento de anfotericina B (AmB) e aumento da sua solubilidade. Foram obtidas MEs O/A sem e com AmB com got?culas em torno de 80 e 120 nm, respectivamente, e ?ndices de polidispers?o de 0,25 e 0,31, respectivamente. A taxa de incorpora??o da AmB foi alta e dependente do volume da fase dispersa. A viabilidade celular n?o foi afetada at? 25 μg/mL da AmB. Portanto, MEs O/A a partir de MCT podem ser promissores sistemas de libera??o para AmB
Perna, Marla K. "The Effects of Nicotine Administration on Behavior and Markers of Brain Plasticity in a Rodent Model of Psychosis." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/etd/1432.
Full textLee, Jeong Woo. "Physical enhancement of transdermal drug delivery: polysaccharide dissolving microneedles and micro thermal skin ablation." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33920.
Full textCadete, pires Ana cristina. "Hyaluronic acid nanocapsules for the intracellular delivery of anticancer drugs." Thesis, Angers, 2016. http://www.theses.fr/2016ANGE0071.
Full textThe main goal of this thesis has been the development of hyaluronic acid nanocapsules (HA NCs) as a multifunctional platform for the encapsulation and delivery of diverse anticancer drugs, such as hydrophobic drugs and hydrophilic biomolecules. The first step was the development of a spontaneous emulsification method, where HA NCs were formulated without the need of organic solvents, heat or high energy input, providing conditions for the incorporation of sensitive biomolecules while decreasing the environmental impact. Another advantage of this system is based on the use of a hydrophobically-modified HA derivative that allowed the preparation of HA NCs by hydrophobic interactions rather than electrostatic forces and thus, reducing the toxicity associated to the addition of a cationic surfactant as a counterion. Once formulated, HANCs had a size around 130 nm and a negative zeta potential about -20 mV. Moreover, these nanocapsules were markedly stable under storage conditions and diluted in human plasma, taking forward this system as a potential carrier for intravenous administration. The versatility of this nanocarrier was confirmed by the incorporation of different molecules : docetaxel, a cytostatic drug, was incorporated into the oil core, whereas anti-gasdermin B, a monoclonal antibody, was entrapped into the polymeric shell. Docetaxel was highly encapsulated, released in a sustained manner and its cytotoxicity in A549 lung cancer cell line was maintained. Finally, anti-gasdermin B was successfully associated to the polymeric shell of HA NCs and its intracellular delivery confirmed by confocal microscopy. Once inside the cell, anti-gasdermin B was able to escape the endosomal compartment and to target the intracellular protein gasdermin B, promoting an important decrease in the migratory and invasive behavior of HCC1954 breast cancer cell line. All these results highlight the potential of self-emulsifying HA NCs as multifunctional systems to transport diverse anticancer drugs, with special emphasisin the intracellular delivery of monoclonal antibodies, an ambitious challenge that could open new avenues to fight cancer
En esta tesis se describe el desarrollo de un nuevo método sostenible para la elaboración de nanocápsulas de ácido hialurónico (NCs HA) como una nueva estrategia para el tratamiento del cáncer. Estas nanocápsulas permiten la incorporación de diferentes moléculas terapéuticas, tanto hidrofóbicas como hidrofílicas, y promueven su liberación en el interior de las células tumorales. En primer lugar, se desarrolló un método de autoemulsificación para la preparación de las NCs HA sin el uso de disolventes orgánicos, temperatura o aplicación de energía. Estas condiciones son ideales para la incorporación de biomoléculas lábiles, así como para reducir el impacto medioambiental del proceso. Otra ventaja del sistema reside en el uso de un derivado de HA modificado hidrofóbicamente que permite la formulación de las nanocápsulas sin la adición de un tensoactivo catiónico, reduciendo así la posible toxicidad del sistema. Las NCs HA semantuvieran estables en condiciones de almacenamiento y tras su dilución en plasma, manteniendo un tamaño nanométrico (130 nm) y una carga superficial negativa (-20mV), lo que corrobora su potencial para administración intravenosa. La versatilidad de este nanosistema fue confirmada mediante la incorporación de diferentes moléculas : docetaxel, un fármaco citostático encapsulado en el núcleo oleoso, y anti-gasdermina B, un anticuerpo monoclonal asociado a la cubierta polimérica. El docetaxel fue eficazmente encapsulado, manteniendo su citotoxicidad en la línea celular de cáncer de pulmón A549, mostrando una liberación del sistema de un modo controlado. Finalmente, la anti-gasdermina B fue asociada de manera eficaz a la cubierta poliméricade las NCs HA y su liberación intracelular confirmada por microscopía confocal. Una vezen el interior de la célula, la anti-gasdermina B abandonó el compartimento endosomaly bloqueó de manera efectiva la proteína intracelular gasdermina B, promoviendo así una importante reducción de la migración e invasión de las células HCC1954 de cáncer de mama. Estos resultados ponen de manifiesto el potencial de las NCs HA, preparadas por auto-emulsificación, como sistemas multifuncionales para transportar diversos fármacos, con especial énfasis en la liberación intracelular de anticuerpos monoclonales,una estrategia ambiciosa en la lucha contra el cáncer
Martí, Coma-Cros Elisabet. "Investigation of branched and linear polymers as oral delivery systems of antimalarial drugs." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/667687.
Full textLa malària és una malaltia infecciosa que afecta gairebé a la meitat de la població de 90 països d'arreu del món. El 2017 s'estima que va provocar 219 milions de casos i 435.000 morts, el 92% de casos i el 93% de morts es produïren a l'Àfrica. Els darrers anys s'han fet grans esforços globals i inversions econòmiques per reduir, controlar i eliminar la malària, cosa que ha comportat una gran reducció de la incidència en els últims 20 anys. No obstant això, aquesta malaltia continua sent un problema de salut pública global. En humans és causada per un protozou del gènere Plasmodium i concretament se’n coneixen cinc espècies diferents. Però la causant de més morbiditat i mortalitat és P. falciparum. La malaltia en si és tractable, però els fàrmacs antipalúdics han de creuar com a mínim tres barreres seqüencials per tal d'arribar al paràsit a una concentració suficientment elevada. Per això aquests principis actius requereixen sistemes d'administració de fàrmacs que han demostrat tenir efectes positius. L'objectiu d'aquesta tesi ha estat caracteritzar polímers ramificats (DHP-bMPA i HDLDBC-bGMPA) i lineals (AGMA1, ISA1, ISA23 i ARGO7) per l'administració oral d'antipalúdics. Els resultats obtinguts realitzant experiments in vitro i in vivo han demostrat que tots dos tipus de polímers tenen baixa toxicitat inespecífica, no tenen activitat hemolítica, tenen especificitat per pRBCs i bona capacitat d'encapsulació. Els PAAs han demostrat tenir una degradació lenta, afinitat per proteïnes del paràsit, i capacitat per entrar dins de macròfags, una propietat interessant per tractar altres malalties. A més a més els ramificats s'uneixen a merozoites i entren en macròfags. D'altra banda els medicaments encapsulats amb qualsevol dels dos tipus de polímers han mostrat una capacitat òptima in vivo per inhibir el creixement del Plasmodiuim després de l’administració i.v o oral. Per últim, PAAs-FITC administrats a mosquits femelles, s’han pogut observar a l'intestí i altres teixits. Per tant es pot concloure, que les dades recollides en aquesta tesi demostren que tant polímers ramificats com lineals són una plataforma versàtil per a l'encapsulació de medicaments antipalúdics per ser administrat via oral, per a l’administració directa a mosquits, i potencials nanocarriers pel tractament d’altres malalties parasitàries.
Guiraldello, Rafael Trevisanuto [UNESP]. "Modelo matemático de tratamento de câncer via quimioterapia em ciclos." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132049.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
O câncer é uma das principais causas de morte no mundo e afeta uma parcela considerável da população, particularmente em países subdesenvolvidos. De acordo com os dados fornecidos pela Organização Mundial da Saúde (WHO, 2014), 8,2 milhões de pessoas morreram em 2012 devido ao câncer. De acordo com o Instituto Nacional do Cˆancer (Brasil, 2014), a estimativa para o ano de 2014 aponta para a ocorrência de, aproximadamente, 576 mil casos novos de câncer no Brasil. No entanto, muitas destas mortes poderiam ser evitadas. Por exemplo, mais de 30% das mortes poderia ser impedida por um estilo de vida saudável ou por imunização contra infecções que causam câncer (HPV, HBV). Ainda, cânceres detectados precocemente podem ser tratados e curados. Mesmo com câncer em estágio final, o sofrimento dos pacientes pode ser aliviado com um bom cuidado paliativo
The cancer is one of the leading causes of death in the world and affects a considerable portion of the population, particularly in developing countries. According to the World Health Organization (WHO, 2014), 8.2 million people worldwide died from cancer in 2012. In 2014 there are 576 000 new cases of cancer expected in Brazil (Brasil, 2014). Yet, many of these deaths could be avoided. Over 30% of canceres can be prevented by healthy life style or by immunization against cancer causing infections (HBV, HPV). Others can be detected early, treated and cured. Even in the late stage, the suffering of patients can be relieved with good palliative care. In this dissertation, we present a mathematical model with the goal of understanding tumor development and the effect of administration in cycles according two protocols of chemotherapy as well as two methods of drug delivery We begin with an introduction to the biology of cancer taking into account the main aspects for the construction of the mathematical model. Then, a review of the literature for the mathematical model is presented, and then we present a linear stability analysis for the spatially homogeneous model with and without treatment, in order to understand the dynamics of the model. We conclude that the parameters of competition are the main bifurcation parameters of the system, which define the tumor progression and the successful of chemotherapy. With these results and numerical simulations we concluded that the metronomic protocol proves more effective in prolonging the patient's life than the MTD protocol. Moreover, the uniform delivery method along with the metronomic protocol is the most efficient in reducing the density of the tumor during treatment
Guiraldello, Rafael Trevisanuto. "Modelo matemático de tratamento de câncer via quimioterapia em ciclos /." Botucatu, 2015. http://hdl.handle.net/11449/132049.
Full textBanca: Marcelo Lobato Martins
Banca: Claudia Helena Pellizzon
Resumo: O câncer é uma das principais causas de morte no mundo e afeta uma parcela considerável da população, particularmente em países subdesenvolvidos. De acordo com os dados fornecidos pela Organização Mundial da Saúde (WHO, 2014), 8,2 milhões de pessoas morreram em 2012 devido ao câncer. De acordo com o Instituto Nacional do Cˆancer (Brasil, 2014), a estimativa para o ano de 2014 aponta para a ocorrência de, aproximadamente, 576 mil casos novos de câncer no Brasil. No entanto, muitas destas mortes poderiam ser evitadas. Por exemplo, mais de 30% das mortes poderia ser impedida por um estilo de vida saudável ou por imunização contra infecções que causam câncer (HPV, HBV). Ainda, cânceres detectados precocemente podem ser tratados e curados. Mesmo com câncer em estágio final, o sofrimento dos pacientes pode ser aliviado com um bom cuidado paliativo
Abstract: The cancer is one of the leading causes of death in the world and affects a considerable portion of the population, particularly in developing countries. According to the World Health Organization (WHO, 2014), 8.2 million people worldwide died from cancer in 2012. In 2014 there are 576 000 new cases of cancer expected in Brazil (Brasil, 2014). Yet, many of these deaths could be avoided. Over 30% of canceres can be prevented by healthy life style or by immunization against cancer causing infections (HBV, HPV). Others can be detected early, treated and cured. Even in the late stage, the suffering of patients can be relieved with good palliative care. In this dissertation, we present a mathematical model with the goal of understanding tumor development and the effect of administration in cycles according two protocols of chemotherapy as well as two methods of drug delivery We begin with an introduction to the biology of cancer taking into account the main aspects for the construction of the mathematical model. Then, a review of the literature for the mathematical model is presented, and then we present a linear stability analysis for the spatially homogeneous model with and without treatment, in order to understand the dynamics of the model. We conclude that the parameters of competition are the main bifurcation parameters of the system, which define the tumor progression and the successful of chemotherapy. With these results and numerical simulations we concluded that the metronomic protocol proves more effective in prolonging the patient's life than the MTD protocol. Moreover, the uniform delivery method along with the metronomic protocol is the most efficient in reducing the density of the tumor during treatment
Mestre
Popa, Michelle. "An Examination of Awareness of Over-the-Counter Nonsteroidal Anti-Inflammatory Drugs and Adverse Events." ScholarWorks, 2011. https://scholarworks.waldenu.edu/dissertations/1143.
Full textBretin, Ludovic. "Thérapie photodynamique (PDT) dans un modèle in vitro et in vivo de cancer colorectal : utilisation d'un photosensibilisateur nanovectorisé." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0052/document.
Full textColorectal cancer (CRC) is one of the most common cancer globally but above all the second leading cause ofdeath for oncological reasons. Despite medical research advances in anti-cancer treatments, many side effectspersist in patients as well as development of resistances to conventional treatments. The development of new anticancertherapeutic strategies is necessary in order to improve care of patients. Photodynamic therapy (PDT) usingphotosensitizers (PS) comes as an innovative therapeutic strategy severely restricting these undesirable sideeffects. PDT has been approved for treatment of some cancers due to the generation of cytotoxic reactive oxygenspecies only with photoactivated PS. However, low physiological solubility and lack of selectivity towards tumorsites are the main limitations of their clinical use. Indeed, targeted drug delivery is a crucial point in cancer therapy.Nanomedicine through the use of nanoparticles improves tumor-targeting because they are able to spontaneouslyaccumulate in solid tumors through an enhanced permeability and retention effect. The purpose of this study wasto prove added value of 5-(4-hydroxyphenyl)-10,15,20-triphenylporphyrin-xylan (TPPOH-X) vectorization bysilica nanoparticles (SNPs) in order to enhance anti-cancer efficacy through better tumor-targeting. It has beendemonstrated significant anti-cancer efficacy increase of TPPOH-X SNPs-PDT thanks to cellular uptakeimprovement relative to free TPPOH-PDT in 3 human CRC cell lines. Moreover, it has been characterized thatcell death induced by TPPOH-X SNPs-PDT is conducted via apoptosis and autophagy acts as a resistance pathwayto cell death. Furthermore, in vivo and without toxicity, TPPOH-X SNPs-PDT induce an elevated anti-cancerefficacy through improvement of tumor-targeting compared to free TPPOH-PDT. This study therefore highlightedthe added value of PDT and nanomedicine combination in order to improve future cancer treatments