β-Hydroxybutyrate: A Signaling Metabolite.

β-Hydroxybutyrate: A Signaling Metabolite.
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DOI:
10.1146/annurev-nutr-071816-064916
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发表时间:
2017-08-21
影响因子:
8.9
通讯作者:
Verdin E
Verdin E
中科院分区:
医学2区
文献类型:
--
作者:
Newman JC;Verdin E

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哺乳动物体内的各种机制提供了对食物匮乏和饮食压力的恢复力。酮体β-羟基丁酸酯(BHB)是在肝脏中由脂肪酸合成的,当葡萄糖供应过低而不能满足身体的能量需求时,如在长时间运动、饥饿或缺乏膳食碳水化合物期间,它是从肝脏到外周组织的能量的重要载体。除了作为能量代谢物的活性外,BHB越来越多地被理解为具有细胞信号传导功能。BHB的这些信号功能广泛地将外部环境与表观遗传基因调控和细胞功能联系起来,并且它们的作用可能与多种人类疾病以及人类衰老有关。
Various mechanisms in the mammalian body provide resilience against food deprivation and dietary stress. The ketone body β-hydroxybutyrate (BHB) is synthesized in the liver from fatty acids and represents an essential carrier of energy from the liver to peripheral tissues when the supply of glucose is too low for the body’s energetic needs, such as during periods of prolonged exercise, starvation, or absence of dietary carbohydrates. In addition to its activity as an energetic metabolite, BHB is increasingly understood to have cellular signaling functions. These signaling functions of BHB broadly link the outside environment to epigenetic gene regulation and cellular function, and their actions may be relevant to a variety of human diseases as well as human aging.
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