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Carbachol

卡巴膽鹼
Mechanism of action:
Carbachol 是一種膽鹼受體促效劑(cholinergic agonist),能同時刺激毒蕈鹼型(muscarinic)與菸鹼型(nicotinic)受體。Carbachol 為乙醯膽鹼(acetylcholine) 的類似物,但不易被乙醯膽鹼酯酶(acetylcholinesterase)分解,作用時間較長。Carbachol 活化毒蕈鹼型乙醯膽鹼受體時,能使平滑肌收縮(腸胃、膀胱)、瞳孔括約肌收縮(眼睛)、腺體分泌增加(唾腺、淚腺);活化菸鹼型乙醯膽鹼受體時,則能讓自主神經節產生興奮性反應。
Reference(s):
1. Rosenberry TL et al. (2008). Analysis of the reaction of carbachol with acetylcholinesterase using thioflavin T as a coupled fluorescence reporter. Biochemistry.
2. Schulz M et al. (2006). Case report: acute unintentional carbachol intoxication. Crit Care.
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