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ABSTRACT 5

서론 7

실험방법 및 재료 9

1. 실험 동물과 조직 준비 9

2. 실험 약물과 용액 10

3. 수축과 이완 측정 10

4. 실험 결과의 통계 처리 11

실험 결과 12

1. 대동맥에서의 alprenolol 이완 효과 12

1) 대동맥에서 70mM KCl의 수축에 대한 alprenolol 효과 12

2) 대동맥에서 NE (1μM)의 수축에 대한 alprenolol 효과 12

3) 대동맥에서 5-HT (10μM)의 수축에 대한 alprenolol 효과 13

2. 장간막동맥에서 alprenolol 이완 효과 13

1) 장간막동맥에서 70mM KCl의 수축에 대한 alprenolol 효과 13

2) 장간막동맥에서 NE (1μM)의 수축에 대한 alprenolol 효과 13

3) 장간막동맥에서 5-HT (10μM)의 수축에 대한 alprenolol 효과 14

3. 대동맥에서 nicardipine으로 전처치 후 alprenolol의 이완 효과 14

고찰 16

참고문헌 18

부록 22

초록보기

 Alprenolol is one of the beta blocker. To see the blood vessels relaxation mechanism, the rat was anesthetized using CO₂ and the aorta and mesenteric artery were collected. The measurement of the contraction and relaxation of blood vessels was made using an isometric machine. The relaxation effect of alprenolol on contraction induced by 70mM KCl was concentration-dependent with and without endothelial cells along with the aorta and mesenteric artery. The relaxation effect of alprenolol on contraction induced by norepineprine (NE) was found to be concentration-dependent in the aorta and mesenteric artery. Furthermore, the relaxation effect was found to be stronger in the presence of endothelial cells rather than in the absence of endothelial cells. The relaxation effect of alprenolol on contraction induced by serotonin (5-HT) was found to have a stronger relaxation effect on the side where endothelial cells were present in the aorta, and relaxation was also found with or without endothelial cells in the mesenteric artery. After nicardipine pre-treatment, alprenolol showed relaxation effects at 70mM KCl, NE but alprenolol did not show any relaxation effects at contraction induced by 5-HT. In the rat blood vessels, the effects of alprenolol on vascular relaxation in the aorta and mesenteric artery are different from each other depending on the contraction-induced materials. Especially when the aorta and mesenteric artery were contracted by 5-HT and NE, respectively, the relaxation effects of alprenolol were highly endothelial cell-dependent.