Document Detail

Kynurenine 3-monooxygenase polymorphisms: relevance for kynurenic acid synthesis in patients with schizophrenia and healthy controls.
MedLine Citation:
PMID:  21693093     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Patients with schizophrenia show increased brain and cerebrospinal fluid (CSF) concentrations of the endogenous N-methyl-D-aspartate receptor antagonist kynurenic acid (KYNA). This compound is an end-metabolite of the kynurenine pathway, and its formation indirectly depends on the activity of kynurenine 3-monooxygenase (KMO), the enzyme converting kynurenine to 3-hydroxykynurenine.
METHODS: We analyzed the association between KMO gene polymorphisms and CSF concentrations of KYNA in patients with schizophrenia and healthy controls. Fifteen single nucleotide polymorphisms (SNPs) were selected covering KMO and were analyzed in UNPHASED.
RESULTS: We included 17 patients with schizophrenia and 33 controls in our study. We found an association between a KMO SNP (rs1053230), encoding an amino acid change of potential importance for substrate interaction, and CSF concentrations of KYNA.
LIMITATIONS: Given the limited sample size, the results are tentative until replication.
CONCLUSION: Our results suggest that the nonsynonymous KMO SNP rs1053230 influences CSF concentrations of KYNA.
Maria Holtze; Peter Saetre; Göran Engberg; Lilly Schwieler; Thomas Werge; Ole A Andreassen; Håkan Hall; Lars Terenius; Ingrid Agartz; Erik G Jönsson; Martin Schalling; Sophie Erhardt
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of psychiatry & neuroscience : JPN     Volume:  37     ISSN:  1488-2434     ISO Abbreviation:  J Psychiatry Neurosci     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-20     Completed Date:  2012-05-04     Revised Date:  2013-06-28    
Medline Journal Info:
Nlm Unique ID:  9107859     Medline TA:  J Psychiatry Neurosci     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  53-7     Citation Subset:  IM    
Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
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MeSH Terms
Brain / metabolism
Genetic Association Studies
Kynurenic Acid / metabolism*
Kynurenine 3-Monooxygenase / genetics*,  metabolism
Polymorphism, Single Nucleotide
Schizophrenia / genetics*,  metabolism
Reg. No./Substance:
492-27-3/Kynurenic Acid; EC 3-Monooxygenase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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