“…The present study missed the SCFA data of the samples, but the microbial community changes show a higher abundance in SCFA-producing bacteria genera after PSPA intervention, so it may be another way PSPA controls blood glucose levels. Studies found the mechanisms of SCFA in diabetes are via secretion of several gut hormones, G-protein coupled receptors (GPR) activation, and signal transduction [ 54 , 55 ]. Humans and rodents [ 56 , 57 ] studies reported that acetate, propionate, and butyrate increased glucagon-like peptide-1 (GLP-1) hormone, which binds to GLP-1 receptor to stimulate insulin secretion, but the anorectic hormone peptide YY was response to propionate, then regulate energy homeostasis and glucose metabolism.…”