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  • Kegel, Magdalena E. (author)

Kynurenic acid and psychotic symptoms and personality traits in twins with psychiatric morbidity

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • Elsevier,2017
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:umu-206306
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-206306URI
  • https://doi.org/10.1016/j.psychres.2016.11.017DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:135075168URI
  • https://gup.ub.gu.se/publication/247678URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Increased cytokines and kynurenic acid (KYNA) levels in cerebrospinal fluid (CSF) have been reported in patients with schizophrenia and bipolar disorder. The aim of the present study was to investigate cytokines and kynurenines in the CSF of twin pairs discordant for schizophrenia or bipolar disorder and to study these CSF markers in relation to psychotic symptoms and personality traits. CSF levels of tryptophan (TRP), KYNA, quinolinic acid (QUIN), interleukin (IL)-6, IL-8 and tumor necrosis factor-alpha (TNF-α) were analyzed in 23 twins with schizophrenia or bipolar disorder, and in their not affected co-twins. Ratings of psychotic symptoms and personality traits were made using the Scales for Assessment of Negative and Positive symptoms, the Structured Clinical Interview for DSM-IV - Axis II Disorders, and the Schizotypal Personality Questionnaire - Brief. A total score for psychotic symptoms and personality traits was constructed for analysis. CSF KYNA was associated with the score for psychotic symptom and personality traits. TNF-α and IL-8 were associated, and the intra-pair differences scores of TNF-α and IL-8 were highly correlated. Intraclass correlations indicated genetic influences on CSF KYNA, TRP, IL-8 and TNF-α. The association between KYNA and psychotic symptoms further supports a role of KYNA in psychotic disorders.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Johansson, ViktoriaKarolinska Institutet(Swepub:umu)vijo2972 (author)
  • Wetterberg, LennartKarolinska Institutet (author)
  • Bhat, Maria (author)
  • Schwieler, LillyKarolinska Institutet (author)
  • Cannon, Tyrone D. (author)
  • Schuppe-Koistinen, InaKarolinska Institutet (author)
  • Engberg, GöranKarolinska Institutet (author)
  • Landén, Mikael,1966Gothenburg University,Göteborgs universitet,Karolinska Institutet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry(Swepub:gu)xlandt (author)
  • Hultman, Christina M.Karolinska Institutet (author)
  • Erhardt, SophieKarolinska Institutet (author)
  • Karolinska InstitutetInstitutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi (creator_code:org_t)

Related titles

  • In:Psychiatry Research: Elsevier247, s. 105-1120165-17811872-7123

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