[Emoxipin in reperfusion of ischemic myocardium in dogs: effects on infarct size and plasma creatine kinase activity].

Abstract

The effects of synthetic antioxidant emoxypine on infarct size and plasma creatine kinase (CK) activity was studied on open-chest anesthetized dogs with 180-min myocardial ischemia followed by reperfusion. Emoxypine (10 and 40 mg/kg) was injected intravenously, beginning since 120th min of coronary artery occlusion. Emoxypine (10 mg/kg) resulted in infarct size limitation and reduction in plasma CK activity. An increase in dose of emoxypine to 40 mg/kg largely attenuated its protective effect on infarct size. CK activity during post-ischemic reperfusion was even higher in emoxypine (40 mg/kg) group compared with control. Augmented CK leakage from irreversibly injured myocardium to plasma under these experimental conditions may be owing to preservation of microvascular integrity and improving of drainage of infarcted tissue exerted by emoxypine.

• Authors: E A Konorev, V Iu Polumiskov, O A Avilova, A P Golikova
• Journal: Biulleten' eksperimental'noi biologii i meditsiny (Biull Eksp Biol Med) Vol. 110 Issue 9 Pg. 252-4 (Sep 1990) ISSN: 0365-9615 [Print] Russia (Federation)
• Vernacular Title: Emoksipin pri reperfuzii ishemicheskogo miokarda u sobak: vliianie na razmer infarkta i kreatinkinaznuiu aktivnost' plazmy krovi.
• PMID: 2268707 (Publication Type: Comparative Study, English Abstract, Journal Article)

Chemical References

• Anti-Arrhythmia Agents
• Antioxidants
• Picolines
• Creatine Kinase
• 6-methyl-2-ethyl-3-hydroxypyridine

Topics

• Animals
• Anti-Arrhythmia Agents (pharmacology, therapeutic use)
• Antioxidants (pharmacology, therapeutic use)
• Clinical Enzyme Tests
• Creatine Kinase (blood)
• Dogs
• Myocardial Infarction (diagnosis, drug therapy)
• Myocardial Reperfusion
• Picolines (pharmacology, therapeutic use)