The role of gut hormones in the regulation of body weight and energy homeostasis
- PMID: 19563862
- DOI: 10.1016/j.mce.2009.06.010
The role of gut hormones in the regulation of body weight and energy homeostasis
Abstract
Obesity is one of the greatest public health challenges of the 21st century with 1.6 billion adults currently classified as being overweight and 400 million as obese. Obesity is causally associated with type 2 diabetes, hypertension, cardiovascular disease, obstructive sleep apnoea and certain forms of cancer and is now one of the leading causes of mortality and morbidity worldwide. The gastrointestinal tract is the largest endocrine organ in the body producing hormones that have important sensing and signaling roles in regulating body weight and energy expenditure. The last decade has witnessed a marked increase in our understanding of the role of gut hormones in energy homeostasis. Consequently, strategies aimed at modulating circulating gut hormone concentrations or targeting their receptors are being developed as potential pharmacotherapies for obesity. This review summarizes the current knowledge regarding the mechanisms, sites of action and effects of the anorectic gut hormones peptide tyrosine-tyrosine (PYY), pancreatic polypeptide (PP), oxyntomodulin, and amylin and of the unique orexigenic hormone, ghrelin.
2009 Elsevier Ireland Ltd. All rights reserved.
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