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Glipizide

格列吡嗪
Mechanism of action:
Glipizide 是一種第二代磺醯尿素類(sulfonylurea)衍生物。Glipizide 能結合並抑制胰島 β 細胞膜上的磺醯脲受體 1(SUR1),此受體為 ATP-敏感鉀離子通道蛋白(ATP-sensitive potassium channel)的調節亞基。被 glipizide 抑制後,鉀離子外流減少,細胞膜發生去極化(depolarization)。去極化會造成鈣離子通道(calcium channel)開啟,鈣離子內流增加,促使胰島素釋放。
Reference(s):
1. Melander A et al. (1983). Clinical pharmacology of glipizide. Am J Med.
2. Skillman TG et al. (1981). The pharmacology of sulfonylureas. Am J Med.
3. Quianzon CC et al. (2012). History of current non-insulin medications for diabetes mellitus. J Community Hosp Intern Med Perspect.
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