TY - JOUR PY - 2012// TI - Analysis of four genes involved in the neurodevelopment shows association of rs4307059 polymorphism in the cadherin 9/10 region with completed suicide JO - Neuropsychobiology A1 - Chojnicka, Izabela A1 - Strawa, Katarzyna A1 - Fudalej, Sylwia A1 - Fudalej, Marcin A1 - Pawlak, Aleksandra A1 - Kostrzewa, Grażyna A1 - Wojnar, Marcin A1 - Krajewski, Paweł A1 - Płoski, Rafał SP - 134 EP - 140 VL - 66 IS - 2 N2 - Background: We hypothesized that DNA variants affecting neurodevelopment such as rs4307059 (CDH10/CDH9), rs930752 (NRXN1), rs6265 (BDNF) or rs10868235 (NTRK2) may predispose to completed suicide. Methodology: We used a case-control two-stage approach based on a discovery cohort (557 cases and ∼550 controls) and replication cohort (159 cases and 186 controls). The suicides were ascertained as consecutive cases autopsied at the Department of Forensic Medicine, Medical University of Warsaw, Poland. Results: In the discovery cohort we found an association between suicide and the CC genotype in the rs4307059 polymorphism (OR 1.64, p = 0.012). The trend for an overrepresentation of the CC homozygotes among suicides was replicated in the second cohort (OR 1.97, p = 0.056). Analysis in the pooled cohorts showed that rs4307059 CC was associated with completed suicide (OR 1.71, p = 0.002) also after Bonferroni correction (p(cor.) = 0.024). In an exploratory search for genotype-phenotype correlation we found that males with the rs4307059 CC genotype committed suicide earlier than those with CT/TT genotypes (p = 0.049). Conclusions: The CC genotype of rs4307059 located in the region between CDH9 and CDH10 is associated with completed suicide in a Polish cohort.

Language: en

LA - en SN - 0302-282X UR - http://dx.doi.org/10.1159/000339559 ID - ref1 ER -