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Desmopressin

去氨加壓素

Mechanism of action:

Desmopressin 是一種合成抗利尿激素類似物(synthetic analogue of antidiuretic hormone)。Desmopressin 能與腎臟集尿管的主細胞(principal cell)的 V₂ 受體結合,啟動 Gs 蛋白,活化腺苷酸環化酶(adenylyl cyclase),提升 cAMP 濃度,促進水通道蛋白-2(aquaporin-2,AQP2)移到頂膜(apical membrane),增加水分重新吸收,尿液濃縮、尿量減少。

​Reference(s):

1. Leissinger C et al. (2001). High-dose DDAVP intranasal spray (Stimate) for the prevention and treatment of bleeding in patients with mild haemophilia A, mild or moderate type 1 von Willebrand disease and symptomatic carriers of haemophilia A. Haemophilia. 


2. Richardson DW et al. (1985). Desmopressin. Ann Intern Med.

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