Mitochondrial aldehyde dehydrogenase in diabetes associated with mitochondrial tRNA(Leu(UUR)) mutation at position 3243

Diabetes Care
Y SuzukiK Matsuoka

Abstract

To ascertain why alcohol is prone to manifest unpleasant effects in diabetes associated with mitochondrial tRNA(Leu(UUR) mutation at position 3243 (DM-Mt3243), we investigated the genotype of aldehyde dehydrogenase (ALDH) 2 and alcohol dehydrogenase 2 (ADH2) in DM-Mt3243. Nineteen unrelated patients with DM-Mt3243 were included in the study (12 men and 7 women). They were recruited from approximately 700 diabetic patients at three different institutes, without prior information of alcohol habit. ALDH2, ADH2, and 3243 mutation were genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) methods. There were 461 unrelated Japanese individuals and 170 non-3243 mutant NIDDM patients enrolled as control subjects. In the DM-Mt3243 group, 15 (79%) patients had inactive ALDH2 and 18 (95%) had atypical ADH2. The frequency of the inactive ALDH2 genotype was higher than that in the normal control subjects (P < 0.002) and that in the NIDDM control subjects (P < 0.003). However, the frequencies of ADH2 genotype in the DM-Mt3243 group, the normal control subjects, and the NIDDM control subjects were not different. Inactive ALDH2 genotype was frequently observed in DM-Mt3243. It suggests that DM-Mt3243 is a...Continue Reading

Citations

Apr 23, 2003·Diabetes Research and Clinical Practice·Yoshihiko SuzukiK Matsuoka
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Aug 28, 2007·Alcohol Research & Health : the Journal of the National Institute on Alcohol Abuse and Alcoholism·Howard J Edenberg
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Aug 20, 2004·Alcoholism, Clinical and Experimental Research·Yoshihiko SuzukiKempei Matsuoka
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