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M9470008.TXT
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Document 0008
DOCN M9470008
TI Modification of lymphocyte subsets in the intestinal-associated immune
system and thymus by chronic ethanol consumption.
DT 9409
AU Lopez MC; Huang DS; Borgs P; Wang Y; Watson RR; Department of Family and
Community Medicine, Arizona Health; Sciences Center, Tucson 85724.
SO Alcohol Clin Exp Res. 1994 Feb;18(1):8-11. Unique Identifier : AIDSLINE
MED/94256603
AB Modification of the mucosa-associated intestinal immune system of female
C57BL/6 mice was studied during consumption of the Lieber-DeCarli diet
supplemented with 5% v/v ethanol or laboratory chow with ethanol (20%
w/v) in the drinking water. All groups received ethanol for 11 weeks.
Mice fed the Lieber-DeCarli diet had fewer CD8+ cells/villus than the
chow-fed controls. Mice that received ethanol in the drinking water had
fewer IgA-containing cells and CD8+ cells than controls. There were no
differences in the number of cells in the mesenteric lymph nodes between
ethanol-treated mice and their respective controls. Nevertheless,
chow-fed control mice had more cells than those fed the Lieber-DeCarli
control diet. Although no differences were detected in the percentages
of CD4+, CD8+, LECAM-1+, and LECAM-1+ CD4+ cells, there was a decrease
in the percentage of LECAM-1+ CD8+ cells in ethanol-fed mice when
compared with their Lieber-DeCarli controls. Mice receiving ethanol in
the drinking water showed alterations in the CD4 CD45RC subsets and in
the CD8 CD45RC subsets. Similar results were observed in mice receiving
Lieber-DeCarli diets alone or supplemented with ethanol. The low dose,
chronic exposure of dietary ethanol in the Lieber-DeCarli-fed mice did
not significantly affect the numbers of various thymocyte subsets. But,
a decrease in the percentage of CD4- CD8+ cells was observed in the
thymus of mice receiving ethanol in the drinking water. Chronic ethanol
consumption caused significant decreases in the number of CD8+ and IgA+
cells in the intestinal lamina propria, important in mucosal immune
defenses.
DE Alcohol, Ethyl/*TOXICITY Alcoholism/*IMMUNOLOGY Animal B-Lymphocyte
Subsets/*DRUG EFFECTS/IMMUNOLOGY CD4-CD8 Ratio/DRUG EFFECTS Female
Immune Tolerance/IMMUNOLOGY Intestinal Mucosa/*IMMUNOLOGY Leukocyte
Count/DRUG EFFECTS Lymph Nodes/IMMUNOLOGY Mice Mice, Inbred C57BL
Peyer's Patches/*IMMUNOLOGY Support, U.S. Gov't, P.H.S. T-Lymphocyte
Subsets/*DRUG EFFECTS/IMMUNOLOGY Thymus Gland/*IMMUNOLOGY JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).