Molecules 2012, 17(9), 11216-11228; doi:10.3390/molecules170911216
Article

Salvianolic Acid A Protects the Peripheral Nerve Function in Diabetic Rats through Regulation of the AMPK-PGC1α-Sirt3 Axis

1email, 1email, 1email, 2email, 1email, 3email, 4email and 1,* email
Received: 2 July 2012; in revised form: 6 September 2012 / Accepted: 6 September 2012 / Published: 20 September 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Salvianolic acid A (SalA) is one of the main efficacious, water-soluble constituents of Salvia miltiorrhiza Bunge. This study investigated the protective effects of SalA on peripheral nerve in diabetic rats. Administration of SalA (0.3, 1 and 3 mg/kg, ig) was started from the 5th week after strepotozotocin (STZ60 mg/kg) intraperitoneal injection and continued for 8 weeks. Paw withdrawal mechanical threshold (PWMT) and motor nerve conduction velocity (MNCV) were used to assess peripheral nerve function. The western blot methods were employed to test the expression levels of serine-threonine liver kinase B1 (LKB1), AMP-activated protein kinase (AMPK), peroxisome proliferator-activated receptor-gamma coactivator-1alpha (PGC-1α), silent information regulator protein3 (sirtuin 3/Sirt3) and neuronal nitric oxide synthase (nNOS) in sciatic nerve. Results showed that SalA administration could increase PWMT and MNCV in diabetic rats; reduce the deterioration of sciatic nerve pathology; increase AMPK phosphorylation level, up-regulate PGC-1α, Sirt3 and nNOS expression, but had no influence on LKB1. These results suggest that SalA has protective effects against diabetic neuropathy. The beneficial effects of SalA on peripheral nerve function in diabetic rats might be attributed to improvements in glucose metabolism through regulation of the AMPK-PGC1α-Sirt3 axis.
Keywords: salvianolic acid A; diabetic neuropathy; AMP-activated protein kinase
PDF Full-text Download PDF Full-Text [2612 KB, uploaded 18 June 2014 19:54 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Yu, X.; Zhang, L.; Yang, X.; Huang, H.; Huang, Z.; Shi, L.; Zhang, H.; Du, G. Salvianolic Acid A Protects the Peripheral Nerve Function in Diabetic Rats through Regulation of the AMPK-PGC1α-Sirt3 Axis. Molecules 2012, 17, 11216-11228.

AMA Style

Yu X, Zhang L, Yang X, Huang H, Huang Z, Shi L, Zhang H, Du G. Salvianolic Acid A Protects the Peripheral Nerve Function in Diabetic Rats through Regulation of the AMPK-PGC1α-Sirt3 Axis. Molecules. 2012; 17(9):11216-11228.

Chicago/Turabian Style

Yu, Xiaoyan; Zhang, Li; Yang, Xiuying; Huang, Huakang; Huang, Zhonglin; Shi, Lili; Zhang, Hengai; Du, Guanhua. 2012. "Salvianolic Acid A Protects the Peripheral Nerve Function in Diabetic Rats through Regulation of the AMPK-PGC1α-Sirt3 Axis." Molecules 17, no. 9: 11216-11228.

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert