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Breakfast meal composition influences plasma tryptophan to large neutral amino acid ratios of healthy lean young men.
J Neural Transm. 1985; 63(3-4):271-83.JN

Abstract

The effect of a carbohydrate, a 20% protein, or a carbohydrate +0.3% tryptophan TRP breakfast on plasma large neutral amino acid ratios was studied in 6 healthy men. The carbohydrate-rich meal produced shifts in plasma amino acid concentrations such that plasma TRP/LNAA ratios increased from 0.13 to 0.15 (p less than 0.04) and the protein meal decreased the ratio from 0.14 to 0.11 (p less than 0.04) after 1 hour. Addition of 0.3% TRP to the carbohydrate-rich meal increased plasma TRP/LNAA ratios more than 2-fold. The TRP containing meal was thus the only one likely to influence brain 5-HT synthesis, although the difference between the plasma TRP/LNAA ratios after carbohydrate and protein breakfasts suggests that the brain may distinguish, by synthesizing more or less 5-HT, the composition of breakfast meals.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

4067599

Citation

Ashley, D V., et al. "Breakfast Meal Composition Influences Plasma Tryptophan to Large Neutral Amino Acid Ratios of Healthy Lean Young Men." Journal of Neural Transmission, vol. 63, no. 3-4, 1985, pp. 271-83.
Ashley DV, Liardon R, Leathwood PD. Breakfast meal composition influences plasma tryptophan to large neutral amino acid ratios of healthy lean young men. J Neural Transm. 1985;63(3-4):271-83.
Ashley, D. V., Liardon, R., & Leathwood, P. D. (1985). Breakfast meal composition influences plasma tryptophan to large neutral amino acid ratios of healthy lean young men. Journal of Neural Transmission, 63(3-4), 271-83.
Ashley DV, Liardon R, Leathwood PD. Breakfast Meal Composition Influences Plasma Tryptophan to Large Neutral Amino Acid Ratios of Healthy Lean Young Men. J Neural Transm. 1985;63(3-4):271-83. PubMed PMID: 4067599.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Breakfast meal composition influences plasma tryptophan to large neutral amino acid ratios of healthy lean young men. AU - Ashley,D V, AU - Liardon,R, AU - Leathwood,P D, PY - 1985/1/1/pubmed PY - 1985/1/1/medline PY - 1985/1/1/entrez SP - 271 EP - 83 JF - Journal of neural transmission JO - J Neural Transm VL - 63 IS - 3-4 N2 - The effect of a carbohydrate, a 20% protein, or a carbohydrate +0.3% tryptophan TRP breakfast on plasma large neutral amino acid ratios was studied in 6 healthy men. The carbohydrate-rich meal produced shifts in plasma amino acid concentrations such that plasma TRP/LNAA ratios increased from 0.13 to 0.15 (p less than 0.04) and the protein meal decreased the ratio from 0.14 to 0.11 (p less than 0.04) after 1 hour. Addition of 0.3% TRP to the carbohydrate-rich meal increased plasma TRP/LNAA ratios more than 2-fold. The TRP containing meal was thus the only one likely to influence brain 5-HT synthesis, although the difference between the plasma TRP/LNAA ratios after carbohydrate and protein breakfasts suggests that the brain may distinguish, by synthesizing more or less 5-HT, the composition of breakfast meals. UR - https://www.unboundmedicine.com/medline/citation/4067599/Breakfast_meal_composition_influences_plasma_tryptophan_to_large_neutral_amino_acid_ratios_of_healthy_lean_young_men_ L2 - https://doi.org/10.1007/BF01252031 DB - PRIME DP - Unbound Medicine ER -