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  • Title: Urinary monoamine metabolites as indices of mental stress in healthy males and females.
    Author: Frankenhaeuser M, Lundberg U, Rauste von Wright M, von Wright J, Sedvall G.
    Journal: Pharmacol Biochem Behav; 1986 Jun; 24(6):1521-5. PubMed ID: 2426718.
    Abstract:
    Concentrations of the serotonin metabolite 5-hydroxyindole acetic acid (5-HIAA), the dopamine metabolite homovanillic acid (HVA) and the noradrenaline metabolite 4-hydroxy-3-methoxyphenyl glycol (HMPG) were determined in urine samples from healthy male and female students by mass fragmentography. Urine samples were obtained after a demanding examination (mental stress) and a day of ordinary school work (control condition). Self-ratings were obtained of feelings induced by the examination, and of habitual psychosomatic symptoms. The results for both sexes showed that the examination stress induced a significant increase of HVA and HMPG excretion, but not of 5-HIAA. The males excreted significantly more of each of the metabolites than the females. The pattern of correlations between metabolite levels and psychological and psychosomatic variables were strikingly different for the two sexes.
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