Stavudine
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Association between antiretrovirals and thyroid diseases: a cross-sectional study
Objective This study aims to estimate the prevalence of thyroid diseases and anti-TPO status. We searched for an association among presence of immune reconstitution and use of stavudine, didanosine and protease inhibitors with thyroid diseases. Materials and methods A cross-sectional study was performed to analyze the records of 117 HIV-infected patients wh
Arch. Endocrinol. Metab.. Publicado em: 2015-04
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2. Aspidosperma subincanum II. Usefulness of uleine and ribonucleic fragments in the treatment of AIDS patients
Aids patients were treated during a year with three different food supplements commercially available: para-pau-aspido (Aspidosperma subincanum Mart. ex A. DC., Apocynaceae); 2Leid (nucleic acids and cytokines); and Para Immuno (propolis, pollen and royal jelly). All foods, given either alone or in combination, proved useful to all AIDS patients who received
Rev. bras. farmacogn.. Publicado em: 2015-02
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3. Equilibrium solubility versus intrinsic dissolution: characterization of lamivudine, stavudine and zidovudine for BCS classification
A solubilidade e a taxa de dissolução de fármacos são de grande importância em estudos de pré-formulação de formas farmacêuticas. A melhora na solubilidade permite que os fármacos sejam candidatos potenciais à bioisenção, podendo ser uma boa maneira para desenvolver formulações dose-eficientes. O comportamento de solubilidade da lamivudina, es
Braz. J. Pharm. Sci.. Publicado em: 2013-12
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4. Severe metabolic acidosis and Fanconi syndrome during stavudine and abacavir therapy in a resource-limited setting
Braz J Infect Dis. Publicado em: 2012-12
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5. Antiretroviral therapy-associated dyslipidemia in patients from a reference center in Brazil
The aim of this study was to determine the impact of antiretroviral therapy on the lipid profile of human immunodeficiency virus (HIV) patients before and after the initiation of highly active antiretroviral therapy (HAART). This was a cross-sectional analysis of patients receiving HAART at a reference center in Belo Horizonte, Brazil, on the basis of medica
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-11
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6. Micronuclei induced by reverse transcriptase inhibitors in mononucleated and binucleated cells as assessed by the cytokinesis-block micronucleus assay
This study evaluated the clastogenic and/or aneugenic potential of three nucleoside reverse transcriptase inhibitors (zidovudine - AZT, lamivudine - 3TC and stavudine - d4T) using the cytokinesis-block micronucleus (CBMN) assay in human lymphocyte cultures. All three inhibitors produced a positive response when tested in binucleated cells. The genotoxicity o
Genetics and Molecular Biology. Publicado em: 15/10/2010
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7. Avaliação do perfil metabólico da estavudina através do emprego da bioconversão e da modelagem molecular do citocromo P-450 CYP3A4 / Evaluation of the metabolic profile of stavudine through the use of bioconversion and molecular modeling of cytochrome P-450 CYP3A4
Antes da aprovação de uma substância ativa, estudos do metabolismo são necessários para garantir sua segurança, uma vez que metabólitos ativos podem ser produzidos durante a biotransformação no organismo humano. O uso de microrganismos eucarióticos para estudos do metabolismo de fármacos tem sido bastante explorado, devido à sua capacidade de pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/06/2009
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8. Metabolic effects associated to the highly active antiretroviral therapy (HAART) in AIDS patients
The aim of this study was to evaluate the metabolic abnormalities (dyslipidaemia and insulin resistance) associated with highly active antiretroviral therapy (HAART) in AIDS patients, treated in Campo Grande, Mato Grosso do Sul, Brazil. The patients were distributed in five different groups: Group 1, HIV-infected without antiretroviral therapy; Group 2, with
Brazilian Journal of Infectious Diseases. Publicado em: 2009-04
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9. Avaliação do perfil metabólico da estavudina através do emprego da bioconversão e da modelagem molecular do citocromo P-450 CYP3A4 / Evaluation of the metabolic profile of stavudine through the use of bioconversion and molecular modeling of cytochrome P-450 CYP3A4
Before the approval of an active compound, metabolism studies are necessary to ensure its safety, once active metabolites could be synthesized during human biotransformation. The use of eukaryotic microorganisms for the study of drug metabolism has been widely explored, due to its capability of producing metabolites similar to the mammalians, and in silico s
Publicado em: 2009
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10. Sensitive and rapid titrimetric and spectrophotometric methods for the determination of stavudine in pharmaceuticals using bromate-bromide and three dyes
Este trabalho descreve quatro métodos rápidos e sensíveispara a determinação de estavudina (STV) na matéria-prima ou em produtos formulados. Soluções aquosas de STV podem ser tituladas tratando-as com excesso de bromato-brometo em meio ácido clorídrico, seguido da determinação iodimétrica de bromo em excesso. Métodos espectrofotométricos tamb�
Anais da Academia Brasileira de Ciências. Publicado em: 2008-06
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11. Desenvolvimento e validação de método por cromatografia líquida de alta eficiência para determinação simultânea das impurezas timina e timidina na matéria-prima estavudina
A HPLC method was developed to quantify thymine and thymidine impurities in stavudine bulk drug. The separation was carried out in isocratic mode using methanol/water (20:80) as mobile phase, a C18 column and UV detection at 266 nm. The method provided selectivity based on peak purities and resolution among peaks. It was linear over the range of 0.5-5.0 µg/
Química Nova. Publicado em: 2008
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12. Impact of the number of failed therapeutic regimes on the development of resistance mutations to HIV-1 in northeast Brazil
Highly-potent antiretroviral therapy is necessary to avoid viral replication in HIV patients; however, it can favor the appearance of resistance mutations. The mutations 41L, 67N, 70R, 210W, 215Y/F, 219E/Q, 44D and 118I are defined as nucleoside analogous mutations (NAMs), because they affect the efficacy of all nucleoside reverse transcriptase inhibitors (N
Brazilian Journal of Infectious Diseases. Publicado em: 2007-10