| Description: |
Saponin V exhibits significant antitussive, expectorant and antispasmodic effects, it (300,150,75 mg·kg-1) can significantly decrease the times of cough, saponin V 300 mg/kg can remarkably increase cough latent period, saponin V 5 g/L remarkably antagonized contraction of isolated ileum, saponin V 2.5 and 1.25 g/L antagonized trachea spasm in guinea pig induced by histamine.Chikusetsu saponin V exhibits neuroprotective effects, it can attenuate H2O2-induced oxidative stress in human neuroblastoma SH-SY5Y cells through Sirt1/PGC-1α/Mn-SOD signaling pathways. |
| In vitro: |
| Can. J. Physiol. Pharm., 2016, 94(9):919-28. | | Chikusetsu saponin V attenuates H2O2-induced oxidative stress in human neuroblastoma SH-SY5Y cells through Sirt1/PGC-1α/Mn-SOD signaling pathways.[Pubmed: 27332950 ] | Oxidative stress plays a vital role in the pathogenesis of neurodegenerative diseases. Chikusetsu Saponin V (CsV), the most abundant member of saponins from Panax japonicus (SPJ), has attracted increasing attention for its potential to treat neurodegenerative diseases. However, the mechanisms are unclear. Our study intended to investigate the antioxidative effects of CsV in human neuroblastoma SH-SY5Y cells.
METHODS AND RESULTS:
Our data showed that CsV attenuated H2O2-induced cytotoxicity, inhibited ROS accumulation, increased the activities of superoxide dismutase (SOD) and GSH, and increased mitochondrial membrane potential dose-dependently. Further exploration of the mechanisms showed that CsV exhibited these effects through increasing the activation of oxidative-stress-associated factors including Sirt1, PGC-1α, and Mn-SOD. Moreover, CsV inhibited H2O2-induced down-regulation of Bcl-2 and up-regulation of Bax in a dose-dependent manner and, thus, increased the ratio of Bcl-2/Bax.
CONCLUSIONS:
In conclusion, our study demonstrated that CsV exhibited neuroprotective effects possibly through Sirt1/PGC-1α/Mn-SOD signaling pathways. |
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