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  • Title: A novel, potent, and long-lasting dipeptidyl peptidase-4 inhibitor, teneligliptin, improves postprandial hyperglycemia and dyslipidemia after single and repeated administrations.
    Author: Fukuda-Tsuru S, Anabuki J, Abe Y, Yoshida K, Ishii S.
    Journal: Eur J Pharmacol; 2012 Dec 05; 696(1-3):194-202. PubMed ID: 23022337.
    Abstract:
    Dipeptidyl peptidase-4 (DPP-4) inhibitors have been demonstrated to improve glycemic control, in particular postprandial hyperglycemic control, in patients with type 2 diabetes. Teneligliptin is a novel chemotype prolylthiazolidine-based DPP-4 inhibitor. The present study aimed to characterize the pharmacological profiles of teneligliptin in vitro and in vivo. Teneligliptin competitively inhibited human plasma, rat plasma, and human recombinant DPP-4 in vitro, with IC(50) values of approximately 1 nmol/l. Oral administration of teneligliptin in Wistar rats resulted in the inhibition of plasma DPP-4 with an ED(50) of 0.41 mg/kg. Plasma DPP-4 inhibition was sustained even at 24h after administration of teneligliptin. An oral carbohydrate-loading test in Zucker fatty rats showed that teneligliptin at ≥ 0.1mg/kg increased the maximum increase in plasma glucagon-like peptide-1 and insulin levels, and reduced glucose excursions. This effect was observed over 12h after a dose of 1mg/kg. An oral fat-loading test in Zucker fatty rats also showed that teneligliptin at 1mg/kg reduced triglyceride and free fatty acid excursions. In Zucker fatty rats, repeated administration of teneligliptin for two weeks reduced glucose excursions in the oral carbohydrate-loading test and decreased the plasma levels of triglycerides and free fatty acids under non-fasting conditions. The present studies indicate that teneligliptin is a potent, competitive, and long-lasting DPP-4 inhibitor that improves postprandial hyperglycemia and dyslipidemia by both single and repeated administrations.
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