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M9640742.TXT
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Document 0742
DOCN M9640742
TI Changes in markers of disease progression in HIV-1 seroconverters: a
comparison between cohorts of injecting drug users and homosexual men.
DT 9604
AU Galai N; Vlahov D; Margolick JB; Chen K; Graham NM; Munoz A; Department
of Epidemiology, Johns Hopkins School of Hygiene and; Public Health,
Baltimore, Maryland 21205, USA.
SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Jan 1;8(1):66-74.
Unique Identifier : AIDSLINE MED/96142203
AB Comparisons of human immunodeficiency virus (HIV) disease progression
between risk groups are difficult primarily because of the long
incubation period of acquired immune deficiency syndrome (AIDS) and
unknown times of infection. This is believed to be the first study that
directly compared changes in T-lymphocyte subsets following HIV-1
seroconversion between cohorts of predominantly black injecting drug
users and predominantly white homosexual men. Longitudinal trends of CD4
and CD8 percentages of total lymphocytes during 4 years were modeled as
piecewise linear functions with a two-parameter correlation structure to
accommodate within-person repeated observations. Prior to seroconversion
the 151 injecting drug users started with similar CD4% and CD8% levels
compared with the 99 homosexual men. Following seroconversion, larger
changes were observed overall in the homosexual men compared with the
injecting drug users for both markers (p < or = 0.001). The major
discrepancies, however, were limited to the first 2 years. Subsequently,
the CD4% levels of the two cohorts converged and then declined at
similar rates. These comparative analyses of HIV seroconverters in
homosexual men and injecting drug users suggest that risk group has only
a minor effect on the initial course of HIV infection.
DE Adult Biological Markers Cohort Studies Comparative Study CD4-CD8
Ratio CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive
T-Lymphocytes/IMMUNOLOGY Disease Progression Female Follow-Up Studies
*Homosexuality, Male Human HIV Infections/IMMUNOLOGY/*PHYSIOPATHOLOGY
HIV Seropositivity/IMMUNOLOGY/*PHYSIOPATHOLOGY *HIV-1 Male Substance
Abuse, Intravenous/IMMUNOLOGY/*PHYSIOPATHOLOGY Support, U.S. Gov't,
P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).