Current research has shown that an imbalance in the Kynurenine pathway plays a role in the physiopathology of neurogenerative and mental disorders (with a decrease in neuroprotective metabolites and an increase in neurotoxic products). So far the research has concentrated on the enzymes IDO 1/2, KAT (1-4), KMO and ACMSD which are the key players in this pathway. Several polymorphisms affecting these enzymes have been associated with certain disorders characterized by a deregulation of the inflammation and immune response (McCauley et al 2009,Tardito et al 2013, Lee et al 2014), but the link between these enzymes and suicidal behavior is not yet clear. The investigators hypothesize that people with history of suicide attempt would have a genetic alterations of the kynurenine pathway specific for suicidal behavior.
Study Type
OBSERVATIONAL
Enrollment
849
We use TaqMan technique to perform SNP genotyping. The PCR reactions are carried out using the Roche "Light Cycler 480" thermal cycler following the protocol recommended by Thermo Fisher Scientific. Then, replication of 10% of the samples is carried out.
Department of Psychiatry, Nimes University Hospital
Nîmes, Gard, France
José-Fernandez-Piqueras
Madrid, Spain
The genotypic and allelelic frequencies of IDO1 rs7820268 SNP in each studied group
The frequencies of this SNP will be measured as a percentage
Time frame: 24 months
The genotypic and allelelic frequencies of IDO2 rs10109853 SNP in each studied group
The frequencies of this SNP will be measured as a percentage
Time frame: 24 months
The genotypic and allelelic frequencies of KMO rs1053230 SNP in each studied group
The frequencies of this SNP will be measured as a percentage
Time frame: 24 months
The genotypic and allelelic frequencies of KAT1 rs10988134 SNP in each studied group
The frequencies of this SNP will be measured as a percentage
Time frame: 24 months
The genotypic and allelelic frequencies of ACMSD rs2121337 SNP in each studied group
The frequencies of this SNP will be measured as a percentage
Time frame: 24 months
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