Document 0123 DOCN M9650123 TI Relationship between infectious cell-associated human immunodeficiency virus type 1 load, T lymphocyte subsets, and stage of infection in homosexual men. DT 9605 AU Margolick JB; Farzadegan H; Hoover DR; Saah AJ; Department of Molecular Microbiology and Immunology, Johns; Hopkins University School of Hygiene and Public Health, Baltimore; 21205, USA. SO J Infect Dis. 1996 Feb;173(2):468-71. Unique Identifier : AIDSLINE MED/96162111 AB The relationship between cell-associated infectious human immunodeficiency virus type 1 (HIV) load (infectious units/10(6) peripheral blood mononuclear cells [IUPM]) and phenotypes of CD4+ and CD8+ lymphocytes was studied. IUPM were measured in 242 HIV-infected homosexual men by quantitative microculture and T cell subsets by two-color flow cytometry. In multivariate analysis, IUPM correlated negatively with CD4+ lymphocyte level and with a diagnosis of AIDS and positively with the proportion of CD8+ lymphocytes expressing the activation marker CD38. After adjusting for level of CD4+ lymphocytes, men with AIDS had significantly lower IUPM than those without AIDS. The correlation between IUPM and CD4+ lymphocyte level was largely explained by correlation with level of CD4+ lymphocytes with resting phenotypes (HLA-DR-, CD38-) rather than with those expressing HLA-DR and CD38. Thus, subsets of CD4+ lymphocytes may vary in cell-associated infectious HIV content at different stages of HIV infection. DE Acquired Immunodeficiency Syndrome/*IMMUNOLOGY/PHYSIOPATHOLOGY/ VIROLOGY Antigens, CD/IMMUNOLOGY Cross-Sectional Studies CD4 Lymphocyte Count CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY Flow Cytometry *Homosexuality, Male Human HIV-1/*PHYSIOLOGY HLA-DR Antigens/IMMUNOLOGY Immunophenotyping Leukocytes, Mononuclear/VIROLOGY Male Support, U.S. Gov't, P.H.S. T-Lymphocyte Subsets/*IMMUNOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).