Authors: Kielgast, Urd; Holst, Jens J.; Madsbad, Sten

Source: Current Diabetes Reviews, Volume 5, Number 4, November 2009 , pp. 266-275(10)

Publisher: Bentham Science Publishers

Abstract:

GLP-1 (glucagon-like peptide-1) is a peptide hormone secreted from endocrine cells in the intestinal mucosa in response to meals. The major effects of GLP-1 are to increase glucose-induced insulin secretion and reduce glucagon release, but GLP-1 also inhibits gastric emptying rate and reduces appetite and bodyweight in obese subjects. In vivo studies using animal models of type 2 diabetes and in vitro studies using human islet cells have suggested that GLP-1 or GLP-1 analogues are also able to increase ß-cell mass, but in animal models of type 1 diabetes, there is much less evidence for a ß-cell preserving effect. This review summarizes the present knowledge of GLP-1 and its analogues regarding its role as a possible treatment in patients with type 1 diabetes. The studies that address the effect of GLP-1 and GLP-1 analogues on ß-cell mass in both type 2 and type 1 diabetes, as well as the potential of GLP-1 as an adjuvant therapy in islet cell transplantation, will be reviewed. Suggestions for future studies of GLP-1 treatment in type 1 diabetes may include early treatment in order to preserve ß-cell mass and prolong the remission period, but should also take a potential insulin sparing effect and changes in the risk of hypoglycemia into account.

Keywords: Type 1 diabetes; GLP-1; Glucagon; ß-cell mass; Residual insulin secretion; Glycemic control

Document Type: Research article

DOI: http://dx.doi.org/10.2174/157339909789804413

Publication date: 2009-11-01

More about this publication?

• Current Diabetes Reviews publishes frontier reviews on all the latest advances on diabetes and its related areas e.g. pharmacology, pathogenesis, complications, epidemiology, clinical care, and therapy.
  
  The journal's aim is to publish the highest quality review articles dedicated to clinical research in the field. The journal is essential reading for all researchers and clinicians who are involved in the field of diabetes.

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