Role of the glucagon-like-peptide-1 receptor in the control of energy balance.
The peripheral and central glucagon-like-peptide-1 (GLP-1) systems play an essential role in glycemic and energy balance regulation. Thus, pharmacological targeting of peripheral and/or central GLP-1 receptors (GLP-1R) may represent a potential long-term treatment option for both obesity and type-II diabetes mellitus (T2DM). Uncovering and understanding the neural pathways, physiological mechanisms, specific GLP-1R populations, and intracellular signaling cascades that mediate the food intake inhibitory and incretin effects produced by GLP-1R activation are vital to the development of these potential successful therapeutics. Particular focus will be given to the essential role of the nucleus tractus solitarius (NTS) in the caudal brainstem, as well as the gut-to-brain communication by vagal afferent fibers in mediating the physiological and behavioral responses following GLP-1R activation. The paper represents an invited review by a symposium, award winner or keynote speaker at the Society for the Study of Ingestive Behavior [SSIB] Annual Meeting in Portland, July 2009.
Department of Psychology, School of Arts and Sciences, University of Pennsylvania, 3720 Walnut Street, Philadelphia, PA 19104, USA. hayesmr@sas.upenn.edu
Matthew R
MR
Hayes
Bart C
BC
De Jonghe
Scott E
SE
Kanoski
D000818:Animals; D004333:Drug Administration Routes; D004435:Eating / Q000187:drug effects / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology*; D052216:Glucagon-Like Peptide 1 / Q000378:metabolism / Q000494:pharmacology; D000067757:Glucagon-Like Peptide-1 Receptor; D006801:Humans; D054795:Incretins / Q000378:metabolism / Q000494:pharmacology; D018027:Receptors, Glucagon / Q000502:physiology*; D015398:Signal Transduction / Q000187:drug effects
C000593833:GLP1R protein, human; D000067757:Glucagon-Like Peptide-1 Receptor; D054795:Incretins; D018027:Receptors, Glucagon; D052216:Glucagon-Like Peptide 1