תזונה ותוספים The Role of Ghrelin in Reward-Based Eating.

[Mike Bikov]

***Biol Psychiatry. 2012 Mar 27. [Epub ahead of print]
The Role of Ghrelin in Reward-Based Eating.
Perelló M, Zigman JM.
Source

Laboratory of Neurophysiology, Multidisciplinary Institute of Cell Biology (IMBICE)-Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA), Buenos Aires, Argentina.
Abstract

The peptide hormone ghrelin acts in the central nervous system as a potent orexigenic signal. Not only is ghrelin recognized as playing an important role in feeding circuits traditionally thought of as affecting body weight homeostasis, but also an accumulating number of scientific studies have identified ghrelin as being a key regulator of reward-based, hedonic eating behaviors. In the current article, we review ghrelin's orexigenic actions, the evidence linking ghrelin to food reward behavior, potential mechanisms by which ghrelin mediates reward-based eating behavior, and those studies suggesting an obligatory role for ghrelin in the changed eating behaviors induced by stress.​

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