Fasting and meal-stimulated serum C-peptide in long-standing type 1 diabetes mellitus.
Charlotte E VollenbrockDick MulPim DekkerErwin BirnieMartine M C de Vries-VelraedsLianne BoestenJoost GroenPetronella H L M Geelhoed-DuijvestijnHenk-Jan AanstootBruce H R WolffenbuttelPublished in: Diabetic medicine : a journal of the British Diabetic Association (2022)
Stimulated C-peptide was detectable in an additional 10% of individuals compared with fasting in individuals with >5 years of diabetes duration. T90 and T120 MMTT measurements showed good concordance with the MMTT total AUC. Overall, there was a decrease of C-peptide at 1-year follow-up.