The role of vitamin D in the endocrinology controlling calcium homeostasis.

The role of vitamin D in the endocrinology controlling calcium homeostasis.
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DOI:
10.1016/j.mce.2017.04.008
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发表时间:
2017-09-15
影响因子:
4.1
通讯作者:
Fleet JC
Fleet JC
中科院分区:
医学2区
文献类型:
--
作者:
Fleet JC

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维生素D及其代谢物是控制全身钙稳态的内分泌系统的重要组成部分。这种荷尔蒙控制的目标是调节血清钙水平,使其保持在一个非常窄的范围内。为了实现这一目标,调控事件在多个组织中协调发生,例如肠、肾、骨和甲状旁腺。维生素D内分泌激素1,25二羟基维生素D(1,25(OH)2D)的产生受习惯性膳食钙摄入量和生长、衰老和更年期等生理状态的调节。1,25(OH)2D对钙调节靶组织的分子作用主要由维生素D受体调控的转录介导。1,25(OH)2D在生长过程中的主要作用是增加肠道钙的吸收,从而使足够的钙可用于骨骼矿化。然而,维生素D对肾脏和骨骼也有特定的作用。
Vitamin D and its’ metabolites are a crucial part of the endocrine system that controls whole body calcium homeostasis. The goal of this hormonal control is to regulate serum calcium levels so that they are maintained within a very narrow range. To achieve this goal, regulatory events occur in coordination at multiple tissues, e.g. the intestine, kidney, bone, and parathyroid gland. Production of the vitamin D endocrine hormone, 1,25 dihydroxyvitamin D (1,25(OH)2 D) is regulated by habitual dietary calcium intake and physiologic states like growth, aging, and the menopause. The molecular actions of 1,25(OH)2 D on calcium regulating target tissues are mediated predominantly by transcription controlled by the vitamin D receptor. The primary role for 1,25(OH)2 D during growth is to increase intestinal calcium absorption so that sufficient calcium is available for bone mineralization. However, vitamin D also has specific actions on kidney and bone.
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