Novel mechanisms in the regulation of phosphorus homeostasis.

Novel mechanisms in the regulation of phosphorus homeostasis.
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DOI:
10.1152/physiol.00034.2008
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发表时间:
2009-02
期刊:
Physiology (Bethesda, Md.)
影响因子:
--
通讯作者:
Kumar R
Kumar R
中科院分区:
其他
文献类型:
--
作者:
Berndt T;Kumar R

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磷在多种生物过程中起着至关重要的作用,因此,磷的平衡和动态平衡的调节对生物体的健康至关重要。环境、饮食和血清中无机磷浓度的变化是由传感器检测到的,这些传感器会引起细胞功能的变化,并改变磷的保存效率。短期的细胞后反应独立于以前被认为在磷平衡中起重要作用的激素,可能在磷平衡的调节中发挥比以前所认识到的更大的作用。一些激素和调节因子,如维生素D内分泌系统、甲状旁腺激素和磷脂酰肌醇(FGF-23、SFRP-4、MEPE)等,可能只在磷的长期动态平衡调节中发挥作用。在这篇综述中,我们将讨论生物体如何感知磷酸盐浓度的变化,以及激素因素的变化如何导致磷的保存或排泄。
Phosphorus plays a critical role in diverse biological processes, and therefore, the regulation of phosphorus balance and homeostasis are critical to the well-being of the organism. Changes in environmental, dietary and serum concentrations of inorganic phosphorus are detected by sensors that elicit changes in cellular function and alter the efficiency by which phosphorus is conserved. Short-term, post-cibal responses which occur independently of hormones previously thought to be important in phosphorus homeostasis may play a larger role than previously appreciated in the regulation of phosphorus homeostasis. Several hormones and regulatory factors such as the vitamin D endocrine system, parathyroid hormone, and the phosphatonins (FGF-23, sFRP-4, MEPE) among others, may play a role only in the long-term regulation of phosphorus homeostasis. In this review we will discuss how organisms sense changes in phosphate concentrations and how changes in hormonal factors result in the conservation or excretion of phosphorus.
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