期刊
MOLECULAR ENDOCRINOLOGY
卷 24, 期 2, 页码 299-309出版社
OXFORD UNIV PRESS INC
DOI: 10.1210/me.2009-0114
关键词
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资金
- National Institutes of Health (NIH) [U19DK6243, HD027183, GM008666, DK074652]
- Hilblom Foundation
Energy production by oxidative metabolism in kidney, stomach, and heart, is primarily expended in establishing ion gradients to drive renal electrolyte homeostasis, gastric acid secretion, and cardiac muscle contraction, respectively. In addition to orchestrating transcriptional control of oxidative metabolism, the orphan nuclear receptor, estrogen-related receptor gamma(ERR gamma), coordinates expression of genes central to ion homeostasis in oxidative tissues. Renal, gastric, and cardiac tissues subjected to genomic analysis of expression in perinatal ERR gamma null mice revealed a characteristic dysregulation of genes involved in transport processes, exemplified by the voltage-gated potassium channel, Kcne2. Consistently, ERR gamma null animals die during the first 72 h of life with elevated serum potassium, reductions in key gastric acid production markers, and cardiac arrhythmia with prolonged QT intervals. In addition, we find altered expression of several genes associated with hypertension in ERR gamma null mice. These findings suggest a potential role for genetic polymorphisms at the ERR gamma locus and ERR gamma modulators in the etiology and treatment of renal, gastric, and cardiac dysfunction. ( Molecular Endocrinology 24: 299-309, 2010)
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