정상 및 허혈/재관류 흰쥐 심장에 대한 2-클로로-3-(4-시아노페닐아미노)-1-4-나프토퀴논 (NQ-Y15)의 작용

• 영문명: Effects of 2-chloro-3-(4-cyanophenylamino)-1,4-naphthoquinone(NQ-YI5) on Normal and Ischemic/reperfused Rat Hearts
• 발행기관: 대한약학회
• 저자명: 문창현(Chang Hyun Moon) 김지영(Ji Young Kim) 백은주(Eun Joo Baik) 이수환(Soo Hwan Lee) 류충규(Chung Kyu Ryu)
• 간행물 정보: 『약학회지』제41권 제6호 (1997년), 829~836쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1997.12.31

영문 초록

Studies on the effect of quinones on cardiac function has been conducted with normal hearts. But not with injured hearts, I.e. ischemia/reperfusion-injured heart. Quinone compounds are known to produce oxygen free radicals during metabolism, and for this reason, quinones are implicated in the aggravation of ischemia/reperfusion injury or cardioprotection, as in the case of ischemic preconditioning depending on the experimental conditions. The present study was carried out to examine the effect of 2-chloro-3-(4-cyanophenylamino)-1.4 naphthoquinone (NQ-Y15) on cardiac function of ischemic/reperfused and normal rat hearts. In isolated perfused hearts, various functional parameters such as left ventricular developed pressure (LVDP), left ventricular end-diastolic pressure (EDP) and maximum positive and negative dP/dt (+/-dP/dtmax), time to contracture, heart rate (HR) and coronary flow rate (CFR) were measured before and 30 min after dosing and following 25 min ischemia/30min reperfusion. NQ-Y15 increased LVDP, +dP/dtmax and -dP/dtmin by 18%. 30%, and 40%, respectively. There were no significant changes in other haemodynamic parameters. After ischemia/reperfusion injury, pretreatment with NQ-Y15 induced a significant decrease in LVDP and +/-dP/dtmax, but an increase in EDP. LDH-release was not significantly increased. These results suggested that NQ-Y15 may augment the ventricular contractility but it makes hearts more vulnerable to ischemia/reperfusion injury.

키워드

NQ-Y15 Ischemia Reperfusion Heart.