Linking Neuroscience and Behavior in COVID-19, Rajkumar Rajendram,Victor R. Preedy,Vinood B. Patel and Colin R. Martin, Editör, Academic Press , London, ss.393-406, 2024
Summary points
l Kynurenine, kynurenic acid, and nicotinic acid are elevated in COVID-19 patients, indicating activation of the immune
regulatory enzyme indole 2,3-dioxygenase.
l Metabolites of the tryptophan-kynurenine pathway (TKP) may be useful for monitoring the immune response and
inflammatory status of COVID-19 patients.
l The ratio of kynurenine to tryptophan increases during viral infection, which may lead to psychiatric disorders in
COVID-19 patients.
l TKP has been linked to cognitive impairment and neuropsychiatric symptoms in viral infections such as COVID-19.
l Further research is needed to determine the precise mechanisms underlying the association between TKP metabolites
and COVID-19-related neuropsychiatric symptoms.
Therapeutic interventions targeting the TKP may potentially reduce the incidence and severity of neuropsychiatric
symptoms in COVID-19 patients.