Total and free tryptophan levels in serum of newborn infants. Relationships with the Serotonin and nicotinic acid pathways.

@article{Antoni1980TotalAF,
  title={Total and free tryptophan levels in serum of newborn infants. Relationships with the Serotonin and nicotinic acid pathways.},
  author={A de Antoni and Graziella Allegri and C Costa and S Vanzan and A Bertolin and Nicola Carretti and Vincenzo Zanardo},
  journal={Acta vitaminologica et enzymologica},
  year={1980},
  volume={2 1-2},
  pages={17-20}
}
The levels of total and free serum tryptophan have been determined in a group of newborn babies at birth, one day later and five days after birth. Total and free tryptophan levels are very high in the umbilical cord at birth, decrease quickly and significantly 24 hours after birth and show a slight, but not significant increase five days after birth. The high tryptophan levels at birth and their decrease in the first day after birth recall previous data on tryptophan metabolism "via" serotonin… CONTINUE READING