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| Content Provider | PubMed Central |
|---|---|
| Author | Liming, Yu Qing, Li Yu, Bo Yang, Yang Jin, Zhenxiao Duan, Weixun Zhao, Guolong Zhai, Mengen Liu, Lijun Yi, Dinghua Chen, Min Yu, Shiqiang |
| Copyright Year | 2016 |
| Abstract | Berberine (BBR) exerts potential protective effect against myocardial ischemia/reperfusion (MI/R) injury. Activation of silent information regulator 1 (SIRT1) signaling attenuates MI/R injury by reducing oxidative damage and inflammation response. This study investigated the antioxidative and anti-inflammatory effects of BBR treatment in MI/R condition and elucidated its potential mechanisms. Sprague-Dawley rats were treated with BBR in the absence or presence of the SIRT1 inhibitor sirtinol (Stnl) and then subjected to MI/R injury. BBR conferred cardioprotective effects by improving postischemic cardiac function, decreasing infarct size, reducing apoptotic index, diminishing serum creatine kinase and lactate dehydrogenase levels, upregulating SIRT1, Bcl-2 expressions, and downregulating Bax and caspase-3 expressions. Stnl attenuated these effects by inhibiting SIRT1 signaling. BBR treatment also reduced myocardium superoxide generation, gp91phox expression, malondialdehyde (MDA) level, and cardiac inflammatory markers and increased myocardium superoxide dismutase (SOD) level. However, these effects were also inhibited by Stnl. Consistently, BBR conferred similar antioxidative and anti-inflammatory effects against simulated ischemia reperfusion injury in cultured H9C2 cardiomyocytes. SIRT1 siRNA administration also abolished these effects. In summary, our results demonstrate that BBR significantly improves post-MI/R cardiac function recovery and reduces infarct size against MI/R injury possibly due to its strong antioxidative and anti-inflammatory activity. Additionally, SIRT1 signaling plays a key role in this process. |
| Related Links | http://dx.doi.org/10.1155/2016/1689602 |
| Starting Page | 1689602 |
| File Format | |
| ISSN | 19420900 |
| e-ISSN | 19420994 |
| Journal | Oxidative Medicine and Cellular Longevity |
| Volume Number | 2016 |
| Language | English |
| Publisher | Hindawi Publishing Corporation |
| Publisher Date | 2016-01-01 |
| Access Restriction | Open |
| Rights Holder | Hindawi Publishing Corporation |
| Subject Keyword | Cell Biology Biochemistry Ageing Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Aging Medicine Biochemistry |
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