When GLP-1 was tested PBS was supplemented with DPP IV inhibitor (Tocris)
3.1 The bioavailability constraint The oral bioavailability of peptides intended for systemic action is typically less than 1%, even under optimized conditions ( Importantly, all current oral peptide formulations require fasting conditions
Endocrinology 129(3):12891294 Rossi C, Angelucci A, Costantin L, Braschi C, Mazzantini M, Babbini F, Fabbri ME, Tessarollo L, Maffei L, Berardi N, Caleo M (2006) Brain-derived neurotrophic factor (BDNF) is required for the enhancement of hippocampal neurogenesis following environmental enrichment
Biopolymers 98 , 443450 (2012)
The inclusion of GSH in the maturation medium effectively preserves oocyte quality during the vitrification process