Enhanced insulin action following subcutaneous co-administration of insulin and C-peptide in rats

Autor: K. Ekberg, M. Kubota, John Wahren, Yuzo Sato, O. Khookhor, Alexander V. Chibalin
Rok vydání: 2014
Předmět:
Zdroj: Diabetes/Metabolism Research and Reviews. 30:124-131
ISSN: 1520-7552
DOI: 10.1002/dmrr.2471
Popis: Background This study was undertaken to examine if C-peptide (C) may interact with hexameric insulin and facilitate its disaggregation into the physiologically active monomeric form. Methods Regular insulin (I) or an insulin analogue (IA) were injected s.c. in rats together with C or its C-terminal pentapeptide (PP). I or IA and C or PP were administered either as a physical mixture or into two separate s.c. depots. Whole body glucose utilization was evaluated using the euglycemic clamp technique. Phosphorylation of Akt/PKB and GSK in liver and skeletal muscles and 86Rb+ uptake by L6 cells were measured. Results S.c. injection of a mixture of I and C or I and PP resulted in a 30–55% greater (P
Databáze: OpenAIRE