脂质乳液抑制阿姆洛迪宾诱导的氧化介导的血管扩张在孤立的老鼠大动脉
Kyeong-Eon Park1, Soo Hee Lee2,3,4, Sung Il Bae1
1Department of Anesthesiology and Pain Medicine, Gyeongsang National University Hospital, 15 Jinju-daero 816 Beon-gil, Jinju-si 52727, Gyeongsangnam-do, Republic of Korea.
通过抑制氧化释放,脂肪乳液减弱了大鼠大动脉中amlodipine诱导的血管扩张. 这种效应涉及逆转内皮氧化合成酶 (eNOS) 酸化的关键变化.
科学领域:
- 药理学 药理学是指药理学的学科.
- 心血管生理学心血管生理学
背景情况:
- 过量服用阿姆洛迪平可以导致血管扩张.
- 脂质乳液是一种治疗局部麻醉毒性的方法.
- 阿姆洛迪平毒性的机制和脂质乳液对其的影响需要进一步研究.
研究的目的:
- 为了研究脂质乳液对阿姆洛迪平诱导的血管扩张在孤立的老鼠大动脉的影响.
- 阐明氧化 (NO) 在这种相互作用中的作用.
- 检查对内皮氧化合成酶 (eNOS) 酸化和细胞内水平的影响.
主要方法:
- 使用的是老鼠大动脉分离制剂.
- 实验涉及内皮脱皮,氧化合成酶抑制 (L-NAME) 和酸环酶抑制 (甲蓝).
- 西部涂抹评估了eNOS,caveolin-1和Src-激酶酸化;细胞内被测量.
主要成果:
- 阿姆洛迪平诱导的血管扩张和循环氨酸单酸盐 (cGMP) 生产依赖于内皮.
- L-NAME,甲蓝,脂质乳液和烯酸抑制了阿姆洛迪平因引起的血管扩张和cGMP产生.
- 脂质乳液逆转了amlodipine诱导的eNOS (Ser1177和Thr495) 中的酸化变化,并抑制了amlodipine诱导的细胞内的增加.
结论:
- 脂质乳液减弱了大鼠大动脉中阿姆洛地平诱导的血管扩张.
- 这种效果是通过抑制氧化释放的介导.
- 该机制涉及逆转amlodipine诱导的eNOS酸化的改变,并减少细胞内.
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