Document 0249 DOCN M9460249 TI Diurnal and short-term stability of HIV virus load as measured by gene amplification. DT 9404 AU Holodniy M; Mole L; Winters M; Merigan TC; AIDS Research Center, Department of Veterans Affairs Medical; Center, Palo Alto, CA 94304. SO J Acquir Immune Defic Syndr. 1994 Apr;7(4):363-8. Unique Identifier : AIDSLINE MED/94180310 AB To determine whether human immunodeficiency virus (HIV) viral load has short term stability, eight clinically stable subjects infected with HIV and having CD4 counts ranging between 10-600/mm3, had blood samples taken at 0800 and 1700 on 3 consecutive days and then weekly at 0800 for 1 month (8-10 observations/subject). Plasma HIV RNA, peripheral blood mononuclear cell (PBMC) proviral DNA, serum p24 antigen levels, and mononuclear cell subsets were measured at each time point. Mean plasma HIV RNA, PBMC HIV DNA, and p24 antigen [both regular and immune complex dissociated (ICD)] levels did not change significantly between mornings and afternoons or on successive days or weeks. CD4+, CD8+, and CD56+ number demonstrated a diurnal variation in those subjects with > 200 CD4 cells/mm3. We conclude that HIV viral load demonstrates short-term stability in clinically stable subjects. This stability has important implications for monitoring HIV disease progression or antiretroviral therapy. DE Adult Analysis of Variance *Circadian Rhythm DNA, Viral/*BLOOD Human HIV/GENETICS/IMMUNOLOGY/*ISOLATION & PURIF HIV Core Protein p24/BLOOD HIV Infections/*MICROBIOLOGY Leukocyte Count Lymphocyte Subsets Middle Age Polymerase Chain Reaction Proviruses/GENETICS/ISOLATION & PURIF RNA, Viral/*BLOOD Support, U.S. Gov't, Non-P.H.S. Support, U.S. Gov't, P.H.S. T4 Lymphocytes Viremia/MICROBIOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).