Miguel Antonio Alfonzo

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OBJECTIVE To evaluate simultaneously the functional state of CD4+ and CD8+ T lymphocytes from Venezuelan HIV-1-infected pediatric patients. METHODS Children were assigned to subgroups of rapid progressors (RPs) and slow progressors (SPs), based on clinical features. To determine the degree of CD4+ and CD8+ T-lymphocyte functionality, flow cytometry(More)
We studied the ex vivo and in vitro expression of CD95/Fas and CD127 receptors in total, naive and memory CD8+ T cells from HIV infected patients with different blood counts of CD4+ T cells. In addition, spontaneous and induced apoptosis were determined in vitro using a viral antigen (Env), along with an evaluation of their specific proliferative capacity.(More)
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