Deuterium-labelled p-tyramine challenge test and phenolsulfotransferase activity in depressed patients--failure to replicate decreased p-tyramine conjugation in depression

Prog Neuropsychopharmacol Biol Psychiatry. 1991;15(2):241-7. doi: 10.1016/0278-5846(91)90087-h.

Abstract

1. Depressed and normal subjects were challenged with deuterium-labelled p-tyramine and urine was collected for 3 h. 2. Urinary excretion of conjugated p-tyramine was not significantly different between normal, melancholic and non-melancholic depressed subjects. 3. Platelet phenolsulfotransferase activity to p-tyramine (p less than 0.05) and to phenol (p less than 0.005) were significantly lower in the depressed patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amitriptyline / pharmacology
  • Arylsulfotransferase / metabolism*
  • Chromatography, Thin Layer
  • Depressive Disorder / diagnosis
  • Depressive Disorder / enzymology*
  • Depressive Disorder / psychology
  • Double-Blind Method
  • Female
  • Fluoxetine / pharmacology
  • Humans
  • Male
  • Psychiatric Status Rating Scales
  • Random Allocation
  • Tyramine* / metabolism

Substances

  • Fluoxetine
  • Amitriptyline
  • Arylsulfotransferase
  • Tyramine