*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
生物活性
S-Methylisothiourea sulfate is a potent, selective and competitive inhibitor of inducible nitric oxide synthase (iNOS). S-Methylisothiourea sulfate exerts beneficial effects in rodent models of septic shock.
性状
Solid
IC50 & Target[1][2]
iNOS
体外研究(In Vitro)
S-Methylisothiourea sulfate is a competitive inhibitor of iNOS activity at the L-arginine site.
S-Methylisothiourea sulfate prevents the NO-mediated cytotoxic effect of LPS in cultured macrophages.
S-Methylisothiourea sulfate (100 nM-100 μM) exhibits inhibitory effects on LPS (ug/mL)-induced nitrite production in J774.2 macrophages and rat aortic vascular smooth muscle cells.
S-Methylisothiourea sulfate (up to 1 mM) does not inhibit the activity of xanthine oxidase, diaphorase, lactate dehydrogenase, monoamine oxidase, catalase, cytochrome P450, or superoxide dismutase.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究(In Vivo)
S-Methylisothiourea sulfate (0.01-3 mg/kg; i.v.) dose-dependently reverses the hypotension and the vascular hyporeactivity to vasoconstrictor agents caused by endotoxin LPS in anesthetized rats.
S-Methylisothiourea sulfate (5 mg/kg; i.p.; given 2 hr after LPS; 10 mg/kg; i.p.) attenuates the rises in plasma alanine and aspartate aminotransferases, bilirubin, and creatinine and also prevents hypocalcaemia when measured 6 hr after administration of LPS.
S-Methylisothiourea sulfate (1 mg/kg; i.p.) improves 24-hr survival of mice treated with a high dose of LPS (60 mg/kg; i.p.).
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Model: Male Wistar rats (260-320 g)
Dosage: 0.01 mg/kg, 0.1 mg/kg, 1 mg/kg, 3 mg/kg
Administration: Intravenous injection
Result: Caused a prompt restoration of the blood pressure to pre-LPS levels at 3 mg/kg dose in LPS (10 mg/kg, i.v.)-treated rats; Inhibited iNOS activity measured in homogenates of lung.
运输条件
Room temperature or refrigerated transportation.
储存方式
4°C, sealed storage, away from moisture
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
参考文献
[1]. C Szabó, et al. Beneficial effects and improved survival in rodent models of septic shock with S-methylisothiourea sulfate, a potent and selective inhibitor of inducible nitric oxide synthase. Proc Natl Acad Sci U S A. 1994 Dec 20; 91(26): 12472-12476. [Information]
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