Neural innervation of white adipose tissue and the control of lipolysis.

Neural innervation of white adipose tissue and the control of lipolysis.
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白色脂肪组织的神经支配和脂肪分解的控制。

DOI:
10.1016/j.yfrne.2014.04.001
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发表时间:
2014-10
影响因子:
7.4
通讯作者:
Ryu, Vitaly
Ryu, Vitaly
中科院分区:
医学1区
文献类型:
--
作者:
Bartness, Timothy J.;Liu, Yang;Shrestha, Yogendra B.;Ryu, Vitaly

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白色脂肪组织(WAT)受交感神经系统(SNS)支配,其激活是脂解所必需的。不支持WAT副交感神经支配。完全执行的SNS-去甲肾上腺素(NE)介导的WAT脂解依赖于β-肾上腺素受体刺激,最终取决于激素敏感性脂肪酶和围脂蛋白A磷酸化。在非人类动物中通过电生理学和神经化学(NE转换)适当地测量WAT交感神经驱动,并且该驱动是脂肪垫特异性的,防止WAT储库和非WAT器官之间的泛化。瘦素触发的SNS介导的脂解是弱支持,而胰岛素或腺苷抑制SNS/NE介导的脂解是强烈支持。除了脂解控制之外,WAT SNS驱动/NE的增加或减少分别抑制和刺激白色脂肪细胞增殖。WAT感觉神经是脊髓起源的,对局部瘦素敏感,并增加交感神经驱动,后者涉及脂解。跨突触病毒道示踪剂的使用揭示了WAT中枢交感神经和感觉回路,包括可能控制脂解的SNS-感觉反馈回路。
White adipose tissue (WAT) is innervated by the sympathetic nervous system (SNS) and its activation is necessary for lipolysis. WAT parasympathetic innervation is not supported. Fully-executed SNS-norepinephrine (NE)-mediated WAT lipolysis is dependent on β-adrenoceptor stimulation ultimately hinging on hormone sensitive lipase and perilipin A phosphorylation. WAT sympathetic drive is appropriately measured by electrophysiological and neurochemical (NE turnover) in non-human animals and this drive is fat pad-specific preventing generalizations among WAT depots and non-WAT organs. Leptin-triggered SNS-mediated lipolysis is weakly supported, whereas insulin or adenosine inhibition of SNS/NE-mediated lipolysis is strongly supported. In addition to lipolysis control, increases or decreases in WAT SNS drive/NE inhibit and stimulate white adipocyte proliferation, respectively. WAT sensory nerves are of spinal-origin and sensitive to local leptin and increases in sympathetic drive, the latter implicating lipolysis. Transsynaptic viral tract tracer use revealed WAT central sympathetic and sensory circuits including SNS-sensory feedback loops that may control lipolysis.
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