T helper cell

(redirected from CD4 T-cell)

T helper cell

see helper lymphocyte.
References in periodicals archive ?
3) Theories behind the pathogenesis include diminished generation of T-cell precursors, increased T-cell apoptosis, alteration of p56 Lck kinase resulting in a defunct CD3 T cell receptor pathway, defective production of cytokines, and circulating CD4 T-cell antibodies.
Additionally, negative correlations were found between CD4 T-cell counts and APRI (P = 0.
Syphilis and human immunodeficiency virus (HIV)-1 coinfection: influence on CD4 T-cell count, HIV-1 viral load, and treatment response.
Impaired CD4 T-cell memory response to Streptococcus pneumoniae precedes CD4 T-cell depletion in HIV-infected Malawian adults.
To quantify the prevalence of undiagnosed cryptococcal infection in HIV-infected persons in the United States during 1986-2012, stored sera from 1,872 participants in the Multicenter AIDS Cohort Study and the Women's Interagency HIV Study with CD4 T-cell counts <100 cells/[micro]L were screened for CrAg, using the CrAg Lateral Flow Assay (LFA) (Immy, Inc.
The investigators saw a dose-related increase in total CD4 T-cell counts and engraftment of the modified cells at the highest cyclophosphamide dose.
Do not administer measles/ mumps/rubella (MMR) vaccine to children whose CD4 T-cell percentage is less than 15%, and adolescent/adult patients with a CD4 count under 200 cells/[mm.
The SMART and ESPRIT researchers summarized their findings this way: "In non-injection drug-using HIV-in-fected individuals on antiretroviral therapy, with an undetectable viral load, who maintained or had recovery of CD4 T-cell counts to at least 500 cells/ml, there was no evidence for a raised risk of death compared with the general population.
The contract has been signed for the distribution of Zyomyx's point-of-care CD4 T-cell count test used in the treatment of HIV/AIDS in developing countries.
Some examples are: a decreased numbers of naive T cells (CD54RA+), a relative expansion of memory T cells (CD45 RO+) and a higher percentage of T regulatory cells, increased CD4 T-cell activation and turnover, increased apoptosis of CD4 lymphocytes, reduced lymphocytes proliferation response and restricted oligoclonal T cells antigen repertoire, disturbance in the signaling of T cells antigen receptor and deficient IL2 production (1,13).
3% median in the comparison group), in line with the central memory CD4 T-cell expansion.
Prior studies have implicated lack of co-trimoxazole prophylaxis, intravenous drug usage, low CD4 T-cell count, high HIV viral load and hospitalisation as risk factors for MRSA colonisation in HIV-seropositive patients.