• The effect of electroconvulsive therapy (ECT) on serum tryptophan metabolites 

      Aarsland, Tore Ivar Malmei; Leskauskaite, Ieva; Midttun, Øivind; Ulvik, Arve; Ueland, Per Magne; Oltedal, Leif; Erchinger, Vera Jane; Ødegaard, Ketil Joachim; Haavik, Jan; Kessler, Ute (Peer reviewed; Journal article, 2019-05-31)
      Background: Prior studies suggest that activation of the tryptophan catabolism via the kynurenine pathway by proinflammatory cytokines may be involved in the pathophysiology of depression. Electroconvulsive therapy (ECT) ...
    • Serum concentrations of kynurenines in adult patients with attention-deficit hyperactivity disorder (ADHD): a case–control study 

      Hegvik, Tor-Arne; Ulvik, Arve; Halmøy, Anne; Haavik, Jan; Aarsland, Tore Ivar Malmei; Landaas, Elisabeth Toverud; Ueland, Per Magne (Peer reviewed; Journal article, 2015-11-05)
      Background: The essential amino acid tryptophan is catabolised mainly through the kynurenine pathway. Altered circulating levels of kynurenines have been reported in chronic inflammatory conditions and in several ...