Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 2 de 2
Más filtros

Bases de datos
Tipo del documento
País de afiliación
Intervalo de año de publicación
Public Health ; 149: 99-105, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28582690


OBJECTIVE: To investigate the meaning of the experiences of patients infected by HIV using antiretroviral therapy, regarding the use of alcohol and drugs. STUDY DESIGN: A qualitative phenomenological study. METHOD: A total of 25 patients receiving antiretroviral treatment participated in the investigation, of which 14 were male and 11 were females, who expressed their feelings and perceptions through participation in focus groups and the interpretation of costumes. The empirical material was transcribed in full and later organized and analyzed using the phenomenological method. RESULTS: Based on this amusing experience we realized that participants were unaware of the effects of the use of alcohol and drugs in the AIDS progression. Since they have kept with their smoking and alcoholism habits to be accepted in a social group and consequently prevent prejudice. We believe that our health education strategy was adequate to improve antiretroviral therapy, since it helped in subject comprehension and patients self-care body expression. CONCLUSION: This phenomenological study made it possible to understand the experience of patients living with HIV regarding the use of alcohol and drugs, and contributes to the planning and implementation of intervention programs based on a participative model of care, with a view to prioritizing the holistic aspects involved in the treatment of people living with HIV/AIDS.

Antirretrovirales/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Trastornos Relacionados con Sustancias/psicología , Adulto , Anciano , Femenino , Grupos Focales , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Investigación Cualitativa
Arch Toxicol ; 68(4): 246-54, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-8067897


The effects of selenium compounds such as sodium selenite, sodium selenate, seleno-DL-cystine and seleno-DL-methionine (100 microM and 10 microM) on B16 and pigmented cloned pB16 murine melanoma cells were investigated in vitro. At the tested concentrations, B16 cells showed a greater sensitivity to the toxic effects of sodium selenite and seleno-DL-cystine than pB16 cells, whereas no decrease of B16 and pB16 cell number was observed after incubation with sodium selenate or seleno-DL-methionine. Glutathione (GSH) percentages were strongly decreased only by selenite and seleno-DL-cystine; it was marked more in B16 than in pB16 cells. The pretreatment of B16 cells with a GSH depleting agent (10 microM buthionine-[S,R]-sulfoximine) did not significantly influence the cytotoxic effects of selenite and seleno-DL-cystine. On both cell populations, GSH preincubation (50 microM) enhanced the cytotoxicity of selenite whereas the survival of seleno-DL-cystine treated cells was increased. Glutathione peroxidase (GSH-Px) activity in B16 cells was more sensitive than in pB16 cells to the activating effect of selenite, and particularly of seleno-DL-cystine: however, cell-free controls indicated that activation was mainly due to glutathione reductase. The rate of 75Se (as sodium selenite) uptake in both cell populations was maximal within the first hour of incubation, with a preferential accumulation in the cytosol; after 24 h of incubation, the amount of 75Se in cytosol and pellet was approximately the same.(ABSTRACT TRUNCATED AT 250 WORDS)

Melanoma Experimental/patología , Selenio/farmacología , Animales , División Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Células Clonales , Glutatión/efectos de los fármacos , Glutatión Peroxidasa/efectos de los fármacos , Melanoma Experimental/metabolismo , Ratones , Ratones Endogámicos C57BL , Pigmentación , Radioisótopos de Selenio/metabolismo , Células Tumorales Cultivadas