CD4 cell


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CD4 cell

n.
An activated helper T cell that expresses the CD4 receptor on its surface. Also called T4 cell.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.CD4 cell - T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus
T cell, T lymphocyte - a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells
References in periodicals archive ?
AMPATH, a service collaboration between Moi University and local clinics in the Eldoret region of western Kenya, carried out viral load tests on all patients receiving ART who had suspected immunological signs of treatment failure (a CD4 cell decrease of at least 25% over the previous 6 months).
BARCELONA, SPAIN -- Experts agree that CD4 cell count is generally the best way to judge when an asymptomatic patient infected with HIV needs to start antiviral treatment.
CD4 cell counts were performed on the blood samples as per manufacturer's instructions (Facs calibur, Becton-Dickinson, Immunocytometry system).
The goal of anti-retroviral therapy (ART) in HIV is to bring down the viral load and increase the CD4 cell count so that the body reconstitutes its immune system AND increases the CD4 count to a manageable level of 500 and more.
AZT-based antiretroviral therapy is associated with lower increases in CD4 cell counts than other HIV treatment regimens, according to a study published in the online edition of AIDS.
Two cases of HSIL+ were observed during the 5 years of observation, 1 among the HIV-uninfected women and 1 among the HIV-infected women with a CD4 cell count of 500 cells/uL or greater.
He also makes a convincing argument for tailoring CD4 cell count ART initiation levels to the hugely differing HIV-negative prevalence baselines among different southern African populations, citing Botswana (average HIV-negative CD4 cell count 500) versus South Africa (average 1 200).
The analysis also showed that the risk for both hepatic failure and liver-related death increased at lower CD4 cell levels, and that treatment with anti-retroviral therapy did not worsen--and in some cases reduced--the rate of hepatic complications, Dr.
Shortly after the HIV epidemic became established, it was a strongly held view that the only thing that mattered for understanding HIV pathogenicity was a falling CD4 cell count, as it was this that led to the opportunistic infections and ultimately to death.
An HIV- positive individual is generally given drugs only after his/ her CD4 cell count falls below 350 or he/ she starts developing symptoms of the disease.
HIV-1 RNA concentrations and CD4 cell counts are moderately but inconsistently associated with parasitaemia.
The risk of infant death was reduced the higher the maternal CD4 cell count.