Abstract | OBJECTIVE: METHODS:
Myocardial infarction was produced in rats with 85 mgkg(-1) isoproterenol administered subcutaneously twice at an interval of 24 h. The rats were randomized into 7 groups: (I) Normal; (II) ISO; (III) ISO+fasudil; (IV) ISO+isosorbide dinitrate (ISDN) and (V-VII) ISO+coptisine (25, 50 and 100 mgkg(-1)). Cardiac function and markers of cardiac ischemic were assessed after MI. RESULTS: Rats pretreated with coptisine (25, 50 and 100 mgkg(-1)) for 21 days and received subcutaneously injected with ISO (85 mgkg(-1)) on the 20th and 21st day at an interval of 24 h. The results suggested that coptisine has strong antioxidant activity, and it can maintain cell membrane integrity, ameliorate mitochondrial respiratory dysfunction, reduce myocardial cells apoptosis, inhibit RhoA/ROCK expression induced by high-dose isoproterenol administration. CONCLUSIONS:
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Authors | Li-Li Gong, Lian-Hua Fang, Su-Bo Wang, Jia-Lin Sun, Hai-Lin Qin, Xiao-Xiu Li, Shou-Bao Wang, Guan-Hua Du |
Journal | Atherosclerosis
(Atherosclerosis)
Vol. 222
Issue 1
Pg. 50-8
(May 2012)
ISSN: 1879-1484 [Electronic] Ireland |
PMID | 22387061
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2012 Elsevier Ireland Ltd. All rights reserved. |
Chemical References |
- Antioxidants
- Cardiotonic Agents
- coptisine
- Berberine
- 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine
- rho-Associated Kinases
- rhoA GTP-Binding Protein
- Isoproterenol
- fasudil
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Topics |
- 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine
(analogs & derivatives, pharmacology)
- Animals
- Antioxidants
(pharmacology)
- Apoptosis
(drug effects)
- Berberine
(analogs & derivatives, therapeutic use)
- Cardiotonic Agents
(therapeutic use)
- Isoproterenol
- Male
- Mitochondria, Heart
(drug effects)
- Myocardial Infarction
(chemically induced, prevention & control)
- Rats
- Rats, Sprague-Dawley
- rho-Associated Kinases
(antagonists & inhibitors)
- rhoA GTP-Binding Protein
(antagonists & inhibitors)
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