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描述 | Tolbutamide is a first generation potassium channel blocker, sulfonylurea oral hypoglycemic drug. Tolbutamide act by stimulating β cells of the pancreas to release insulin. Tolbutamide belongs to a class of medications called sulfonylureas. Tolbutamide inhibits both the basal and the cyclic AMP-stimulated protein kinase activities and the IC50 of Tolbutamide is 4 mM. Tolbutamide also inhibits both soluble and membrane-bound protein kinase from canine heart. The Tolbutamide inhibition of adipose tissue cyclic AMP-dependent protein kinase is one possible explanation for the antilipolytic effects of this drug[3]. Moreover, tolbutamide and dbcAMP increase the synthesis of the tumor suppressor protein Cx43 and that they decrease the level of Ki-67, a protein expressed when cells are proliferating[4]. Tolbutamide is a substrate to organic anion transporter 2 (OAT2) alone with transporter affinity [Michaelis-Menten constant (Km)] of 19.5 ± 4.3 µM[5]. |
临床研究 | |||||
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NCT号 | 适应症或疾病 | 临床期 | 招募状态 | 预计完成时间 | 地点 |
NCT02456428 | - | Completed | - | Canada, Quebec ... 展开 >> Lady Davis Institute for Medical Research, Jewish General Hospital Montreal, Quebec, Canada, H3T1E2 收起 << | |
NCT02476760 | - | Completed | - | Canada, Quebec ... 展开 >> Lady Davis Institute for Medical Research, Jewish General Hospital Montreal, Quebec, Canada, H3T1E2 收起 << | |
NCT02475499 | - | Completed | - | Canada, Quebec ... 展开 >> Lady Davis Institute for Medical Research, Jewish General Hospital Montreal, Quebec, Canada, H3T1E2 收起 << |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
3.70mL 0.74mL 0.37mL |
18.49mL 3.70mL 1.85mL |
36.99mL 7.40mL 3.70mL |
参考文献 |
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