Fekkes, Durk

The bovine protein α-lactalbumin increases the plasma ratio of tryptophan to the other large neutral amino acids, and in vulnerable subjects raises brain serotonin activity, reduces cortisol concentration, and improves mood under stress

Markus, C. R., Olivier, B., Panhuysen, G. E., Van der Gugten, J., Alles, M. S., Tuiten, A., Westenberg, H. G., Fekkes, D., Koppeschaar, H. F., & de Haan, E. E. (2000) · The American Journal of Clinical Nutrition

Tryptophan and brain disordersStress Responses and Cortisol

Cited by 296

The effects of high-dose and low-dose tryptophan depletion on mood and cognitive functions of remitted depressed patients

Booij, L., Van der Does, A. J. W., Haffmans, P. M. J., Riedel, W. J., Fekkes, D., & Blom, M. J. B. (2005) · Journal of Psychopharmacology

Tryptophan and brain disordersNeurotransmitter Receptor Influence on Behavior

Cited by 105