FGF21 ameliorates the neurocontrol of blood pressure in the high fructose-drinking rats

Jian Li He, Miao Zhao, Jing Jun Xia, Jian Guan, Yang Liu, Lu Qi Wang, Dong Xue Song, Mei Yu Qu, Meng Zuo, Xin Wen, Xue Yu, Rong Huo, Zhen Wei Pan, Tao Ban, Yan Zhang, Jiu Xin Zhu, Weinian Shou, Guo Fen Qiao, Bai Yan Li

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14 Scopus citations

Abstract

Fibroblast growth factor-21 (FGF21) is closely related to various metabolic and cardiovascular disorders. However, the direct targets and mechanisms linking FGF21 to blood pressure control and hypertension are still elusive. Here we demonstrated a novel regulatory function of FGF21 in the baroreflex afferent pathway (the nucleus tractus solitarii, NTS; nodose ganglion, NG). As the critical co-receptor of FGF21, β-klotho (klb) significantly expressed on the NTS and NG. Furthermore, we evaluated the beneficial effects of chronic intraperitoneal infusion of recombinant human FGF21 (rhFGF21) on the dysregulated systolic blood pressure, cardiac parameters, baroreflex sensitivity (BRS) and hyperinsulinemia in the high fructose-drinking (HFD) rats. The BRS up-regulation is associated with Akt-eNOS-NO signaling activation in the NTS and NG induced by acute intravenous rhFGF21 administration in HFD and control rats. Moreover, the expressions of FGF21 receptors were aberrantly down-regulated in HFD rats. In addition, the up-regulated peroxisome proliferator-activated receptor- 3 and -α (PPAR- 3/-α) in the NTS and NG in HFD rats were markedly reversed by chronic rhFGF21 infusion. Our study extends the work of the FGF21 actions on the neurocontrol of blood pressure regulations through baroreflex afferent pathway in HFD rats.

Original languageEnglish (US)
Article number29582
JournalScientific reports
Volume6
DOIs
StatePublished - Jul 8 2016

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    He, J. L., Zhao, M., Xia, J. J., Guan, J., Liu, Y., Wang, L. Q., Song, D. X., Qu, M. Y., Zuo, M., Wen, X., Yu, X., Huo, R., Pan, Z. W., Ban, T., Zhang, Y., Zhu, J. X., Shou, W., Qiao, G. F., & Li, B. Y. (2016). FGF21 ameliorates the neurocontrol of blood pressure in the high fructose-drinking rats. Scientific reports, 6, [29582]. https://doi.org/10.1038/srep29582