INS and diabetes mellitus: α2A‐adrenoceptor stimulation reduces insulin secretion from β‐islets [http://www.ncbi.nlm.nih.gov/pubmed/22645144?dopt=AbstractPlus], with a polymorphism in the 5’‐UTR of the ADRA2A gene being associated with increased receptor expression in β‐islets and heightened susceptibility to diabetes [http://www.ncbi.nlm.nih.gov/pubmed/19965390?dopt=AbstractPlus].