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Alcohol dehydrogenase of human and rat blood vessels. Role in ethanol metabolism. 1997

A Allali-Hassani, and S E Martinez, and J M Peralba, and J Vaglenova, and F Vidal, and C Richart, and J Farrés, and X Parés
Department of Biochemistry and Molecular Biology, Faculty of Sciences, Universitat Autònoma de Barcelona, Bellaterra, Spain.

Alcohol dehydrogenase (ADH) activity has been detected in all arteries and veins examined from humans and rat. In distinct human autopsy vessels, activity values range from 0.9 +/- 0.2 to 9.9 +/- 7.7 mU/mg. Distribution of the activity in human aorta was: intima (23.5%), media (74%) and adventia (2.5%). In most of the samples the beta1 beta1 isozyme of class I ADH was the only form responsible for the ADH activity. Class IV ADH (sigma sigma-ADH) was present in three of the 28 individuals examined. The rat blood vessels showed class IV, but not class I, ADH localized in endothelium and media. The physiological role of vascular ADH is probably related to retinoid metabolism and elimination of lipid peroxidation aldehydes. A contribution to human ethanol metabolism is supported by the significant amount of low-Km activity and the extension of the vascular system.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001808 Blood Vessels Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins). Blood Vessel,Vessel, Blood,Vessels, Blood
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000426 Alcohol Dehydrogenase A zinc-containing enzyme which oxidizes primary and secondary alcohols or hemiacetals in the presence of NAD. In alcoholic fermentation, it catalyzes the final step of reducing an aldehyde to an alcohol in the presence of NADH and hydrogen. Alcohol Dehydrogenase (NAD+),Alcohol Dehydrogenase I,Alcohol Dehydrogenase II,Alcohol-NAD+ Oxidoreductase,Yeast Alcohol Dehydrogenase,Alcohol Dehydrogenase, Yeast,Alcohol NAD+ Oxidoreductase,Dehydrogenase, Alcohol,Dehydrogenase, Yeast Alcohol,Oxidoreductase, Alcohol-NAD+
D000431 Ethanol A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES. Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001158 Arteries The vessels carrying blood away from the heart. Artery
D014680 Veins The vessels carrying blood away from the CAPILLARY BEDS. Vein

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