Coffee and Serum Gamma-glutamyltransferase: A Study of Self-Defense Officials in Japan

The relation of coffee drinking and other behavioral factors to serum gammaglutamyltransferase (GGT) was examined in 2,494 male self-defense officials aged 48–56 years, who received a retirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1990. Co...

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Bibliographic Details
Published in:American journal of epidemiology 1994-04, Vol.139 (7), p.723-727
Main Authors: Kono, Suminori, Shinchi, Koichi, Todoroki, Isao, Hatsuse, Kazuo
Format: Article
Language:English
Subjects:
alcohol drinking
Alcohol Drinking - blood
Alcoholism and acute alcohol poisoning
Biological and medical sciences
Body Mass Index
Coffee
Cross-Sectional Studies
gamma-glutamyltransferase
gamma-Glutamyltransferase - blood
Humans
Japan
Male
Medical sciences
Middle Aged
Military Personnel
obesity
smoking
Smoking - blood
Tea
Toxicology
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Summary:The relation of coffee drinking and other behavioral factors to serum gammaglutamyltransferase (GGT) was examined in 2,494 male self-defense officials aged 48–56 years, who received a retirement health examination at the Self-Defense Forces Fukuoka Hospital between October 1986 and December 1990. Coffee, but not green tea, consumption was inversely related to serum GGT independently of body mass index, alcohol use, and smoking. All of the latter variables were also independently and positively associated with serum GGT. Lower levels of serum GGT associated with coffee drinking were more evident among heavier alcohol drinkers and also among heavier smokers. The findings suggest that coffee may inhibit the inducing effects of alcohol and possibly of smoking upon GGT in the liver.
ISSN:0002-9262
1476-6256
DOI:10.1093/oxfordjournals.aje.a117062