In isolated rat aorta preparations, the peptide produced concentration-dependent vasodilation that was endothelium-dependent and abolished by L-NAME, and co-immunoprecipitation work traced the response to phosphorylation of Src, caveolin-1, and endothelial nitric oxide synthase, with reduced binding between caveolin-1 and eNOS [1]
Third, most studies were designed to measure efficacy of healing, not to conduct rigorous, long-duration toxicology and carcinogenicity assessment following regulatory standards
Its one of the main reasons why B12 deficiency is more common in older adults and why many find that regular B12 shots help them feel more vibrant and sharp
PubMed , Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline , National Academies Press (US), 1998