Document 0011 DOCN M9470011 TI Flow cytometric analysis of lymphocyte subsets of mice maintained on an ethanol-containing liquid diet. DT 9409 AU Hsiung L; Wang J; Waltenbaugh C; Department of Microbiology-Immunology, Northwestern University; Medical School, Chicago, IL 60611. SO Alcohol Clin Exp Res. 1994 Feb;18(1):12-20. Unique Identifier : AIDSLINE MED/94256579 AB Alcoholic patients often have impaired immune function, yet little is known about the precise mechanism(s) of this impairment. We have previously shown that ethanol consumption by mice alters copolymer-specific humoral and cellular immune responses. In this study, we asked whether alcohol consumption by mice would phenotypically alter lymphocyte populations. Female C57BL/6 mice were fed a nutritionally complete liquid diet containing 35% ethanol-derived calories for up to 8 days. As controls, mice either were fed a liquid control diet that isocalorically substitutes sucrose for ethanol or remained on a standard solid diet and water ad libitum. Although mice fed ethanol-containing liquid or pair-fed control liquid diets have decreased numbers of spleen cells compared with solid diet controls, only the ethanol-containing diet allowed normally nonresponder C57BL/6 spleen cells to make antibody responses to the poly(Glu50Tyr50) synthetic copolymer antigen. Flow cytometric analysis of splenic lymphocyte populations of mice on the ethanol-containing diet shows an increase in the relative proportion of T-lymphocytes as compared with mice on either solid or liquid control diets. No such change is seen for either B-cell or natural killer cell populations in these same mice. Both liquid control and liquid ethanol diets caused a slight decrease in the CD4:CD8 ratios of splenic T-lymphocytes. We see the relative percentage of T-cells bearing the alpha beta T-cell receptor (TcR) increases in the spleens of liquid ethanol diet mice; a smaller increase TcR alpha beta usage is seen in the spleens of liquid control mice, compared with solid diet mice.(ABSTRACT TRUNCATED AT 250 WORDS) DE Alcohol, Ethyl/*TOXICITY Alcoholism/*IMMUNOLOGY Animal B-Lymphocyte Subsets/*DRUG EFFECTS/IMMUNOLOGY CD4-CD8 Ratio/DRUG EFFECTS Female *Flow Cytometry Leukocyte Count/DRUG EFFECTS Mice Mice, Inbred C57BL Peptides/IMMUNOLOGY Receptors, Antigen, T-Cell, alpha-beta/ANALYSIS Spleen/IMMUNOLOGY 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).