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- Title
Central Amino Acid Sensing in the Control of Feeding Behavior.
- Authors
Heeley, Nicholas; Blouet, Clemence; Luquet, Serge H.; Fetissov, Sergueï O.
- Abstract
Dietary protein quantity and quality greatly impact metabolic health via evolutionaryconserved mechanisms that ensure avoidance of amino acid imbalanced food sources, promote hyperphagia when dietary protein density is low, and conversely produce satiety when dietary protein density is high. Growing evidence supports the emerging concept of protein homeostasis in mammals, where protein intake is maintained within a tight range independently of energy intake to reach a target protein intake. The behavioral and neuroendocrine mechanisms underlying these adaptations are unclear. While peripheral factors are able to signal amino acid deficiency and abundance to the brain, the brain itself is exposed to and can detect changes in amino acid concentrations, and subsequently engages acute and chronic responses modulating feeding behavior and food preferences. In this review, we will examine the literature describing the mechanisms by which the brain senses changes in amino acids concentrations, and how these changes modulate feeding behavior.
- Subjects
LOW-protein diet; AMINO acids; ANIMAL feeding behavior; PHYSIOLOGY
- Publication
Frontiers in Endocrinology, 2016, Vol 7, p1
- ISSN
1664-2392
- Publication type
Article
- DOI
10.3389/fendo.2016.00148