Amino acid signals and food intake and preference: relation to body protein metabolism.

摘要: Depressed food consumption is an early response of experimental, animals to: 1) a dietary deficiency either protein or individual indispensable amino acid; 2) distortion the pattern acids when intake low; and 3) substantial elevation in content diet. In each these conditions change feeding behaviour associated with alterations concentrations blood but none them has biochemical basis for depressed been established. The rats consuming low diet which imbalance created by adding quantities other than one most limiting growth, elevations plasma added to create usually depression concentration growth-limiting acid. These changes, turn, are acid brain free pool. Studies uptake into slices examined support conclusion that various distortions pattern, as result imbalances acids, can lead depletion pool specific through competition between it surplus brain. results studies vivo effects on pools ingestion diets containing supplements compete also this conclusion. Depletion be related overall body metabolism. young growing animal, synthesis stimulated after meal. Thus, single acid, will depleted from circulating At same time, activities degrading enzymes fed diet; hence, such have limited capacity degrade surpluses acids. conditions, slow removal competing blood, increase extent brain.(ABSTRACT TRUNCATED AT 400 WORDS)