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商品描述
| Description | Alogliptin is a potent, selective inhibitor of the serine protease dipeptidyl peptidase IV (DPP-4) with IC50 values of 2.63 nM and exhibits greater than 10,000 fold selectivity over the closely related serine proteases DPP-8 and DPP-9. | ||
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| In vitro | Alogliptin is a potent (IC50 < 10="" nm)="" inhibitor="" of="" dpp-4="" and="" exhibits="" greater="" than="" 10,000="" fold="" selectivity="" over="" the="" closely="" related="" serine="" proteases="" dpp-8="" and="">[1].Compound 10 is not an inhibitor of CYP-450 enzymes and does not block the hERG channel at concentrations up to 30μM[2]. | ||
| In vivo | Absolute oral bioavailability of alogliptin in rats, dogs, and monkeys is 45%, 86%, and 72% to 88%, respectively. After a single oral dose of alogliptin, plasma DPP-4 inhibition is observed within 15 min and maximum inhibition is > 90% in rats, dogs, and monkeys; inhibition is sustained for 12 h in rats (43%) and dogs (65%) and 24 h in monkeys (> 80%). From Emax modeling, 50% inhibition of DPP-4 activity is observed at a mean alogliptin plasma concentration (EC50) of 3.4 to 5.6 ng/ml (10.0 to 16.5 nM) in rats, dogs, and monkeys. In Zucker fa/fa rats, a single dose of alogliptin (0.3, 1, 3, and 10 mg/kg) inhibites plasma DPP-4 (91% to 100% at 2 h and 20% to 66% at 24 h), increases plasma GLP-1 (2- to 3-fold increase in AUC0–20 min) and increases early-phase insulin secretion (1.5- to 2.6-fold increase in AUC0-20 min) and reduces blood glucose excursion (31%–67% decrease in AUC0–90 min) after oral glucose challenge. Alogliptin (30 and 100 mg/kg) has no effect on fasting plasma glucose in normoglycemic rats.[3]. |
