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Cited by 167

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Mitochondrial aldehyde dehydrogenase-2 (ALDH2) Glu504Lys polymorphism contributes to the variation in efficacy of sublingual nitroglycerin

Open access
Li, Y.·2006·Journal of Clinical Investigation

Abstract

Glyceryl trinitrate (GTN), also known as nitroglycerin, has been used to treat angina and heart failure for more than 130 years. Recently, it was shown that mitochondrial aldehyde dehydrogenase-2 (ALDH2) is responsible for formation of NO, the metabolite needed for GTN efficacy. In the present study, we show that the common G-to-A polymorphism in exon 12 of ALDH2--resulting in a Glu504Lys replacement that virtually eliminates ALDH2 activity in both heterozygotes and homozygotes--is associated with a lack of efficacy of sublingual GTN in Chinese subjects. We also show that the catalytic efficiency (Vmax/Km) of GTN metabolism of the Glu504 protein is approximately 10-fold higher than that of the Lys504 enzyme. We conclude that the presence of the Lys504 allele contributes in large part to the lack of an efficacious clinical response to nitroglycerin; we recommend that this genetic factor be considered when administering nitroglycerin to patients, especially Asians, 30-50% of whom possess the inactive ALDH2*2 mutant allele.

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Metadata

Authors
Li, Y.
Venue
Journal of Clinical Investigation
Published
2006-01-19
Volume
116
Issue
2
Pages
506-511
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2160297178
Cited by
167
References
3
FWCI
11.24
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Mitochondrial aldehyde dehydrogenase-2 (ALDH2) Glu504Lys polymorphism contributes to the variation in efficacy of sublingual nitroglycerin. https://app.cochat.ai/papers/10.1172/jci26564
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Li, Y. (2006). Mitochondrial aldehyde dehydrogenase-2 (ALDH2) Glu504Lys polymorphism contributes to the variation in efficacy of sublingual nitroglycerin. Journal of Clinical Investigation. https://doi.org/10.1172/jci26564

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