Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Incretin Hormones and Type 2 Diabetes – Mechanistic Insights and Therapeutic Approaches

Version 1 : Received: 26 November 2020 / Approved: 27 November 2020 / Online: 27 November 2020 (11:24:40 CET)

A peer-reviewed article of this Preprint also exists.

Boer, G.A.; Holst, J.J. Incretin Hormones and Type 2 Diabetes—Mechanistic Insights and Therapeutic Approaches. Biology 2020, 9, 473. Boer, G.A.; Holst, J.J. Incretin Hormones and Type 2 Diabetes—Mechanistic Insights and Therapeutic Approaches. Biology 2020, 9, 473.

Journal reference: Biology 2020, 9, 473
DOI: 10.3390/biology9120473

Abstract

Glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) are secreted from the gut upon nutrient stimulation and regulate postprandial metabolism. These hormones are known as classical incretin hormones and are responsible for a major part of postprandial insulin release. The incretin effect is severely reduced in patients with type 2 diabetes, but it was discovered that administration of GLP-1 agonists was capable of normalizing glucose control in these patients. Over the last decades, much research has been focused on the development of incretin-based therapies for type 2 diabetes. These therapies include incretin receptor agonists and inhibitors of the incretin-degrading enzyme dipeptidyl peptidase-4. Especially the development of diverse GLP-1 receptor agonists has shown immense success, whereas studies of GIP monotherapy in patients with type 2 diabetes have consistently been disappointing. Interestingly, both GIP-GLP-1 co-agonists and GIP receptor antagonists administered in combination with GLP-1R agonists appear to be efficient with respect to both weight loss and control of diabetes, although the molecular mechanisms behind these effects remain unknown. This review describes our current knowledge of the two incretin hormones and the development of incretin-based therapies for treatment of type 2 diabetes.

Subject Areas

GIP; GLP-1; incretins; T2DM

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