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M9620684.TXT
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1996-02-26
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Document 0684
DOCN M9620684
TI Evaluation of T-lymphocyte subsets present in semen and peripheral blood
of healthy donors: a report from the heterosexual transmission study.
DT 9602
AU Denny TN; Scolpino A; Garcia A; Polyak A; Weiss SN; Skurnick JH;
Passannante MR; Colon J; Departments of Pediatrics and Pathology, New
Jersey Medical; School, Newark, USA.
SO Cytometry. 1995 Aug 1;20(4):349-55. Unique Identifier : AIDSLINE
MED/96101991
AB The purpose of this study was to accurately determine the T-lymphocyte
subsets found in semen from healthy volunteers, to evaluate the impact
of repeated ejaculation on the frequency or type of immune cells present
in semen, and to compare subset analysis in semen to that in the
peripheral blood. To accomplish this, a flow cytometric method was
developed to identify and count immunophenotypically distinct cells
present in semen. Fresh semen samples and peripheral blood were
collected over three consecutive days from nine healthy donors. Donors
had normal ejaculate volume, sperm count, sperm motility, morphology,
and leukocyte count. No significant intra-donor differences were seen in
these parameters over time. No significant differences were observed in
the percentage of CD3+ cells, CD4+ cells, CD8+ cells, and the CD4:CD8
ratio in semen on consecutive days. However, within the CD4+ subset,
when naive and memory CD4+ cells were measured, some day to day
variability was suggested. No significant differences in CD3+, CD4+,
CD8+, CD4/CD8 ratio, or naive and memory subsets were seen in the
peripheral blood between sampling days. When semen was compared to
peripheral blood some differences in immune subset values were observed,
with an increase in the percentage of memory CD4+ cells in semen being
the most striking. This finding may be relevant to HIV transmission,
since others have shown that this cell may be preferentially infected
with HIV and is the primary reservoir for virus in infected individuals.
DE Adult Blood Cells Comparative Study CD4 Lymphocyte Count CD4-CD8
Ratio *Ejaculation Flow Cytometry/*METHODS Human HIV
Infections/TRANSMISSION HIV Seronegativity/*IMMUNOLOGY
Immunophenotyping/*METHODS *Lymphocyte Count Male Reference Values
Semen/*CYTOLOGY/IMMUNOLOGY Support, U.S. Gov't, P.H.S. *T-Lymphocyte
Subsets JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).