Skip to main content

Cerebrospinal fluid kynurenic acid in male patients with schizophrenia – correlation with monoamine metabolites

Buy Article:

$51.00 plus tax (Refund Policy)

Nilsson-Todd LK, Nordin C, Jönsson EG, Skogh E, Erhardt S. Cerebrospinal fluid kynurenic acid in male patients with schizophrenia – correlation with monoamine metabolites. Background: 

The tryptophan metabolite kynurenic acid (KYNA) is an endogenous glutamate/nicotinic receptor antagonist. Previous studies have shown that the concentration of the compound is increased in cerebrospinal fluid (CSF) of patients with schizophrenia. Furthermore, it has been found that the CSF concentration of KYNA is positively correlated to CSF concentrations of the monoamine metabolites homovanillic acid (HVA) and 5-hydroxy indoleacetic acid (5-HIAA) in healthy control subjects. Objectives: 

To study the correlations between KYNA and the monoamine metabolites HVA, 5-HIAA and 4-hydroxy-3-methoxyphenylglycol (HMPG) in CSF of male patients (n = 53, ranging from 20 to 48 years of age) with verified schizophrenia. Methods: 

CSF was obtained by lumbar puncture, and KYNA analysis was performed with an isocratic reversed-phase high-performance liquid chromatography system connected to a fluorescence detector. HVA, 5-HIAA and HMPG concentrations were measured by mass fragmentography with deuterium-labelled internal standards. Results: 

Positive intercorrelations were found between CSF KYNA, HVA and 5-HIAA, while CSF content of HMPG did not correlate to KYNA or any of the monoamine metabolites in CSF. Conclusion: 

The results of this study suggest that increased KYNA formation is associated with an increased dopamine and serotonin turnover in male patients with schizophrenia.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: 4-hydroxy-3-methoxyphenylglycol (HMPG), human; 5-hydroxy-indoleacetic acid (5-HIAA); homovanillic acid (HVA)

Document Type: Research Article

Affiliations: 1: Department of Neuroscience and Locomotion, Psychiatry Section, Linköpings Universitet, Linköping, Sweden 2: Department of Clinical Neuroscience, Psychiatry Section, HUBIN Project, Karolinska Institutet and Hospital, Stockholm, Sweden 3: Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden

Publication date: 2007-02-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more