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M9650336.TXT
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1996-03-09
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Document 0336
DOCN M9650336
TI Effects of prenatal ethanol exposure and stress in adulthood on
lymphocyte populations in rats.
DT 9605
AU Giberson PK; Weinberg J; Department of Anatomy, University of British
Columbia, Vancouver,; Canada.
SO Alcohol Clin Exp Res. 1995 Oct;19(5):1286-94. Unique Identifier :
AIDSLINE MED/96119388
AB The present study was undertaken to assess the possible interactive
effects of prenatal ethanol exposure and stress in adulthood on
lymphocyte populations in rat offspring, and to examine differential
vulnerability of males and females to these challenges. Male and female
offspring from prenatal ethanol-exposed (E), pair-fed, and ad
libitum-fed control conditions were exposed to a 3-week chronic
intermittent stress regimen in adulthood. Animals were exposed to two of
six different stressors daily, one each at random times in the morning
and afternoon, with the same pair of stressors being repeated every 4
days. Following the 3-week stress period, lymphocytes from four
compartments (peripheral blood, spleen, thymus, and cervical lymph
nodes) were analyzed for expression of differentiation antigens. Data
demonstrate that, whereas a number of the effects of prenatal ethanol on
lymphocyte populations appeared to be nutritionally mediated, the
additional challenge of exposure to stressors differentially affected
animals exposed to ethanol prenatally and appeared to have effects
primarily in male offspring. Stressed E males had a greater reduction in
the number of pan T-cells in the thymus and peripheral blood, compared
with nonstressed E males, but showed an increased peripheral blood pan
T-antigen expression. Stressed E males also had reduced numbers of
peripheral blood CD4+ T-cells and thymic CD4+CD8+ T-cells, compared with
controls.(ABSTRACT TRUNCATED AT 250 WORDS)
DE Alcohol, Ethyl/*TOXICITY Animal CD4-CD8 Ratio/DRUG EFFECTS Female
Fetal Alcohol Syndrome/*IMMUNOLOGY Immune Tolerance/DRUG
EFFECTS/IMMUNOLOGY Lymphocyte Subsets/*DRUG EFFECTS/IMMUNOLOGY Male
Pregnancy *Prenatal Exposure Delayed Effects Rats Rats,
Sprague-Dawley Reference Values Sex Characteristics Stress,
Psychological/*COMPLICATIONS/IMMUNOLOGY Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S. T-Lymphocyte Subsets/DRUG
EFFECTS/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).