University of Groningen PACAP stimulates insulin secretion but inhibits insulin sensitivity in mice

Groningen PACAP stimulates insulin secretion but inhibits insulin sensitivity in mice

PACAP stimulates insulin secretion but inhibits insulin sensitivity in mice.

Although pituitary adenylate cyclase-activating polypeptide (PACAP) stimulates insulin secretion, its net influence on glucose homeostasis in vivo has not been established. We therefore examined the action of PACAP-27 and PACAP-38 on insulin secretion, insulin sensitivity, and glucose disposal as derived from the minimal model of glucose disappearance during an intravenous glucose tolerance tes...

Overexpression of PACAP in transgenic mouse pancreatic beta-cells enhances insulin secretion and ameliorates streptozotocin-induced diabetes.

Pituitary adenylate cyclase-activating polypeptide (PACAP), a member of the vasoactive intestinal peptide/secretin/glucagon family, stimulates insulin secretion from islets in a glucose-dependent manner at femtomolar concentrations. To assess PACAP's pancreatic function in vivo, we generated transgenic mice overexpressing PACAP in the pancreas under the control of human insulin promoter. Northe...

Evaluation of Diabetogenic Mechanism of High Fat Diet in Combination with Arsenic Exposure in Male Mice

Obesity is a main reason of type 2 diabetes and also chronic exposure to arsenic (As)can produce diabetic symptoms. In previous studies, the association between high-fat dietand arsenic in the incidence of diabetes was found, but the role of beta cells activity, livermitochondrial oxidative stress, and hepatic enzymes (leptin, adiponectin and beta amylase)was unclear. Thus, present study was co...

Evaluation of Diabetogenic Mechanism of High Fat Diet in Combination with Arsenic Exposure in Male Mice

Obesity is a main reason of type 2 diabetes and also chronic exposure to arsenic (As)can produce diabetic symptoms. In previous studies, the association between high-fat dietand arsenic in the incidence of diabetes was found, but the role of beta cells activity, livermitochondrial oxidative stress, and hepatic enzymes (leptin, adiponectin and beta amylase)was unclear. Thus, present study was co...