Effects of incretin-based therapies on neurocognitive function in humans: A systematic review of the literature

We performed a PRISMA systematic review of incretin-based therapies and effects on neurocognitive function in humans. There was observational evidence to support dipeptidyl peptidase-IV inhibitors in improving cognition, whilst glucagon-like peptide-1 had positive effects on cerebral glucose metabolism. Powered clinical trials are now needed in patients with- and without diabetes.