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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Min, Xinwen Zhao, Libin He, Peigen Wang, Neng Li, Dongfeng |
| Description | Author Affiliation: Wang N ( Department of Cardiology, Dongfeng Hospital of Hubei Medical University, Shiyan, Hubei 442008, PR China. wangneng0701@163.com) |
| Abstract | The high mobility group box 1 (HMGB1) protein plays an important role in myocardial ischemia and reperfusion (I/R) injury. Geranylgeranylacetone (GGA), a heat shock protein 72 inducer, has been reported to reduce myocardial I/R injury. The aim of this study was to investigate the cardioprotective mechanism of GGA during myocardial I/R injury in rats. Anesthetized male rats were treated once with GGA (200 mg/kg, p.o.) 24 h before ischemia, and subjected to ischemia for 30 min, followed by reperfusion for 4 h. Lactate dehydrogenase (LDH), creatine kinase (CK), malondialdehyde (MDA), superoxide dismutase (SOD) activity and infarct size were measured. HMGB1 expression was assessed by immunoblotting. The results showed that pre-treatment with GGA (200 mg/kg) significantly reduced the infarct size and the levels of LDH and CK after 4 h of reperfusion (all P<0.05). GGA also significantly inhibited the increase in MDA levels and the decrease in SOD levels (both P<0.05). Meanwhile, GGA considerably suppressed the expression of HMGB1 induced by I/R. The present study suggests that GGA is capable of attenuating myocardial I/R injury by inhibiting HMGB1 expression. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| Journal | Molecular Medicine Reports |
| Issue Number | 2 |
| Volume Number | 5 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2012-02-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Cardiotonic Agents Pharmacology Diterpenes Gene Expression Regulation Drug Effects Hmgb1 Protein Antagonists & Inhibitors Myocardial Ischemia Prevention & Control Reperfusion Injury Animals Therapeutic Use Creatine Kinase Metabolism Hsp72 Heat-shock Proteins L-lactate Dehydrogenase Malondialdehyde Rats, Sprague-dawley Superoxide Dismutase Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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