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자료유형
학술대회자료
저자정보
Lee, Woo-Yong (College of Pharmacy, Sungkyunkwan University) Lee, Sun-Mee (College of Pharmacy, Sungkyunkwan University) Cho, Tai-Soon (College of Pharmacy, Sungkyunkwan University)
저널정보
한국응용약물학회 한국응용약물학회 추계학술발표논문집 한국응용약물학회 1998년도 Proceedings of UNESCO-internetwork Cooperative Regional Seminar and Workshop on Bioassay Guided Isolation of Bioactive Substances from Natural Products and Microbial Products
발행연도
1998.1
수록면
199 - 199 (1page)

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In this study, the effects of ursodeoxycholic acid (UDCA) on ischemia/reperfusion injury were investigated on retrograded aortic perfusion model. Hearts from Sprague-Dawley rats were perfused with oxygenated Krebs-Henseleit solution (pH 7.4, 37) on a Langendorff apparatus. After equilibration, hearts were treated with ursodeoxycholic acid 10, 20, 40 and 800 M or vehicle (0.04% DMSO) for 10 min before the onset of ischemia. Following 25 min of global ischemia, ischemic hearts were reperfused and allowed to recover for 30 min. The physiological (i.e. heart rate, left ventricular diastolic pressure, coronary flow and time to contracture formation) and biochemical (lactate dehydrogenase, LDH) endpoints were evaluated. In vehicle group, time to contracture formation (TTC) value was 19.5 min during ischemia, LVDP was 20.8 mmHg at the endpoint of reperfusion and LDH activity in reperfusate was 59.7 U/L. Cardioprotective effects of UDCA following ischemia/reperfusion consisted of a reduced TTC (EC$\_$25/ = 16.10 M), reduced LDH release and enhanced recovery of contractile function during reperfusion. Especially, the treatments of UDCA 80 M remarkably increased LVDP (68.1 mmHg) and reduced LDH release (33.2 U/L). Our findings suggest that UDCA ameliorates ischemia/reperfusion-induced myocardial damage, in agreement with physiological and biochemical parameters.

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