Molecular Formula | C45H71N11O14S2 |
Molar Mass | 1054.25 |
Melting Point | >165oC (dec.) |
Solubility | DMSO (Slightly), Methanol (Slightly), Water (Slightly) |
Color | White to Off-White Solid |
Storage Condition | 4°C |
Use | Treatment of abortion, etc |
In vitro study | Atosiban inhibits the oxytocin-mediated release of IP3 from the myometrial cell membrane. There is reduced release of intracellular, stored calcium from the sacroplasmic reticulum of myometrial cells, and reduced influx of Ca 2+ from the extracellular space through voltage gated channels. In addition, Atosiban suppresses oxytocin-mediated release of PGE and PGF from the decidua. |
In vivo study | The posterior pituitary hormones, oxytocin and arginine vasopressin, differ in structure by only two amino acids, and Atosiban influences physiological effects of arginine vasopressin on the feto-maternal cardiovascular and renal systems. In late-gestation sheep, the administration of Atosiban for 1 hour fails to induce fetomaternal cardiovascular changes. Atosiban blocks the activation of oxytocin-receptor-expressing neurons in the parabrachial nucleus of mice. |