Atosiban是desamino-oxytocin类似物,是竞争性加压素/催产素受体拮抗剂,能抑制催产素介导的三磷酸肌醇从子宫肌层细胞膜上释放。
Atosiban acetate is a competitive oxytocin and vasopressin antagonist by exhibiting high affinity for both receptors. It is used to treat preterm labors. Atosiban is a nonapeptide, desamino-oxytocin analogue, and a competitive vasopressin/oxytocin receptor antagonist (VOTra). Atosiban inhibits the oxytocin-mediated release of inositol trisphosphate from the myometrial cell membrane.
动物 A (mg/kg) = 动物 B (mg/kg)×动物 B的Km系数/动物 A的Km系数 | |
例如,已知某工具药用于小鼠的剂量为88 mg/kg , 则用于大鼠的剂量换算方法:将88 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到该药物用于大鼠的等效剂量44 mg/kg。
[1] Engstrom, T., et al., Effect of oxytocin receptor blockade on rat myometrial responsivenesss to prostaglandin F2å. Biol. Reprod. 63, 1443-1449, (2000)
[2] Tahara, A., et al., Pharmacologic characterization of the oxytocin receptor in human uterine smooth muscle cells. Br. J. Pharmacol. 129, 131-139, (2000)
分子式 C43H67N11O12S2 |
分子量 994.2 |
CAS号 90779-69-4 |
储存方式 -20 ℃长期冷藏储存。冰袋运输 |
溶剂(常温) |
DMSO Soluble |
Water <1 mg/mL |
Ethanol <1 mg/mL |
体内溶解度
注:以上所有数据均来自公开文献,并不保证对所有实验均有效,数据仅供参考。
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