Leucine metabolism in regulation of insulin secretion from pancreatic beta cells.
Leucine metabolism in regulation of insulin secretion from pancreatic beta cells.
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DOI:
10.1111/j.1753-4887.2010.00282.x
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发表时间:
2010-05
影响因子:
6.1
通讯作者:
Wolf BA
中科院分区:
文献类型:
--
作者:
Yang J;Chi Y;Burkhardt BR;Guan Y;Wolf BA
Leucine, a the branched-chain amino acids that must be supplied in daily diet, plays an important role in controlling protein synthesis and regulating cell metabolism in various cell types. In pancreatic β cells, leucine acutely stimulates insulin secretion by serving as both metabolic fuel and allosteric activator of glutamate dehydrogenase to enhance glutaminolysis. Leucine has also been shown to regulate gene transcription and protein synthesis in pancreatic islet β cells via both mTOR-dependent and -independent pathways at physiological concentrations. Long-term treatment of leucine has been shown to improve insulin secretory dysfunction of human diabetic islets via upregulation of certain key metabolic genes. In vivo, leucine administration improves glycemic control in humans and rodents with type 2 diabetes. This review aims to summarize and discuss the recent findings regarding the effects of leucine metabolism on pancreatic β cell function.
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8.2
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通讯作者:
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