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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/9830
Title: Effects of Pyridoxine Deficiency on the Metabolism of N-Nitrosodimethylamine in the Rat
Authors: A. Aramphongphan
P. Navasumrit
Y. Kuroiwa
T. Yoshida
N. Frank
M. Ruchirawat
Mahidol University
Chulabhorn Research Institute
Showa University
German Cancer Research Center
Keywords: Medicine;Nursing
Issue Date: 1-Jan-1994
Citation: Journal of Nutritional Science and Vitaminology. Vol.40, No.2 (1994), 105-113
Abstract: The alteration in the metabolic activation of N-nitroso-dimethylamine (NDMA) was investigated in the rat during dietary pyridoxine deficiency. The in vitro metabolism of NDMA by demethylase system was measured in both liver and kidney microsomes. The profile of the kidney enzyme appears similar to that of the liver indicating that at least two forms of isozymes with the low and the high Km's are present. Pyridoxine deficiency significantly increased the activity of NDMA-demthylase of both organs. The increase in the activity of NDMA-demethylase induced by dietary pyridoxine deficiency can be reversed by supplementation of pyridoxine (500μg), i.p., daily for two consecutive days. The increase ia the NADPH cytochrome c reductase activity was observed after 6 weeks on pyridoxine-deficient diet. © 1994, Center for Academic Publications Japan. All rights reserved.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0028305774&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/9830
ISSN: 18817742
03014800
Appears in Collections:Scopus 1991-2000

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