AgRP Neurons Regulate Bone Mass.
AgRP Neurons Regulate Bone Mass.
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DOI:
10.1016/j.celrep.2015.08.070
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发表时间:
2015-10-06
期刊:
影响因子:
8.8
通讯作者:
Horvath TL
中科院分区:
文献类型:
--
作者:
Kim JG;Sun BH;Dietrich MO;Koch M;Yao GQ;Diano S;Insogna K;Horvath TL
The hypothalamus has been implicated in skeletal metabolism. Whether hunger-promoting neurons of the arcuate nucleus impact the bone is not known. We generated multiple lines of mice to affect AgRP neuronal circuit integrity. We found that mice with Ucp2 gene deletion, in which AgRP neuronal function was impaired, were osteopenic. This phenotype was rescued by cell-selective reactivation of Ucp2 in AgRP neurons. When the AgRP circuitry was impaired by early postnatal deletion of AgRP neurons or by cell autonomous deletion of Sirt1 (AgRP-Sirt1−/−), mice also developed reduced bone mass. No impact of leptin receptor deletion in AgRP neurons was found on bone homeostasis. Suppression of sympathetic tone in AgRP-Sirt1−/− mice reversed osteopenia in transgenic animals. Taken together, these observations establish a significant regulatory role for AgRP neurons in skeletal bone metabolism independent of leptin action.
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影响因子:
25
作者:
Dietrich, Marcelo O.;Bober, Jeremy;Horvath, Tamas L.
通讯作者:
Horvath, Tamas L.
影响因子:
64.5
作者:
Yadav VK;Oury F;Suda N;Liu ZW;Gao XB;Confavreux C;Klemenhagen KC;Tanaka KF;Gingrich JA;Guo XE;Tecott LH;Mann JJ;Hen R;Horvath TL;Karsenty G
通讯作者:
Karsenty G
DOI:
10.1073/pnas.1111436109
发表时间:
2012-01-17
影响因子:
11.1
作者:
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通讯作者:
Lagerquist, Marie K.
影响因子:
56.9
作者:
Pinto, S;Roseberry, AG;Horvath, TL
通讯作者:
Horvath, TL
影响因子:
16.2
作者:
Heisler, Lora K.;Jobst, Erin E.;Cowley, Michael A.
通讯作者:
Cowley, Michael A.