Brain Serotonin Content: Increase Following Ingestion of Carbohydrate Diet

@article{Fernstrom1971BrainSC,
  title={Brain Serotonin Content: Increase Following Ingestion of Carbohydrate Diet},
  author={J. Fernstrom and R. Wurtman},
  journal={Science},
  year={1971},
  volume={174},
  pages={1023 - 1025}
}
In the rat, the injection of insulin or the consumption of carbohydrate causes sequential increases in the concentrations of tryptophan in the plasma and the brain and of serotonin in the brain. Serotonin-containing neurons may thus participate in systems whereby the rat brain integrates information about the metabolic state in its relation to control of homeostatis and behavior. 
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Tryptophan increases extracellular serotonin in the lateral hypothalamus of food-deprived rats
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Brain Serotonin Content: Physiological Regulation by Plasma Neutral Amino Acids
Failure of decreased serotonin uptake or monoamine oxidase inhibition to block the acceleration in brain 5-hydroxyindole synthesis that follows food consumption
Possible role of insulin in the transport of tyrosine and tryptophan from blood to brain.
Dietary Carbohydrate Increases Brain Tryptophan and Decreases Free Plasma Tryptophan
Carbohydrate craving, obesity and brain serotonin
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Brain Serotonin Content: Physiological Dependence on Plasma Tryptophan Levels
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