Abstract:
:Fibroblast growth factor 21 (FGF21) modulates a diverse range of biological functions, including glucose and lipid metabolism, adaptive starvation response, and energy homeostasis, but with limited mechanistic insight. FGF21 treatment has been shown to inhibit hepatic growth hormone (GH) intracellular signaling. To evaluate GH axis involvement in FGF21 actions, transgenic mice overexpressing bovine GH were used. Expectedly, in response to FGF21 treatment control littermates showed metabolic improvements whereas GH transgenic mice resisted most of the beneficial effects of FGF21, except an attenuation of the innate hyperinsulinemia. Since FGF21 is believed to exert its effects mostly at the transcriptional level, we analyzed and observed significant upregulation in expression of various genes involved in carbohydrate and lipid metabolism, energy homeostasis, and antioxidant defense in FGF21-treated controls, but not in GH transgenics. The resistance of GH transgenic mice to FGF21-induced changes underlines the necessity of normal GH signaling for the beneficial effects of FGF21.
journal_name
Int J Endocrinoljournal_title
International journal of endocrinologyauthors
Boparai RK,Arum O,Miquet JG,Masternak MM,Bartke A,Khardori RKdoi
10.1155/2015/282375subject
Has Abstractpub_date
2015-01-01 00:00:00pages
282375eissn
1687-8337issn
1687-8345journal_volume
2015pub_type
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abstract::[This corrects the article DOI: 10.1155/2015/164087.]. ...
journal_title:International journal of endocrinology
pub_type: 已发布勘误
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