Journal
JOURNAL OF HUMAN GENETICS
Volume 57, Issue 8, Pages 523-530Publisher
SPRINGERNATURE
DOI: 10.1038/jhg.2012.62
Keywords
bipolar affective disorder; DISC1; Schizophrenia; TSNAX
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Funding
- Indian Council of Medical Research (ICMR)
- Council of Scientific and Industrial Research (CSIR)
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Genetic association studies have implicated the TSNAX/DISC1 (disrupted in schizophrenia 1) in schizophrenia (SCZ), bipolar affective disorder (BPAD) and major depression. This study was performed to assess the possible involvement of TSNAX/DISC1 locus in the aetiology of BPAD and SCZ in the Southern Indian population. We genotyped seven single nucleotide polymorphism (SNPs) from TSNAX/DISC1 region in 1252 individuals (419 BPAD patients, 408 SCZ patients and 425 controls). Binary logistic regression revealed a nominal association for rs821616 in DISC1 for BPAD and also combined cases of BPAD or SCZ, but after correcting for multiple testing, these results were non-significant. However, significant association was observed with BPAD, as well as combined cases of BPAD or SCZ, within the female subjects for the rs766288 after applying false discovery rate corrections at the 0.05 level. Two-locus analysis showed C-C (rs766288-rs2812393) as a risk combination in BPAD, and G-T (rs2812393-rs821616) as a protective combination in SCZ and combined cases of BPAD or SCZ. Female-specific associations were observed for rs766288-rs2812393, rs766288-rs821616 and rs8212393-rs821616 in two-locus analysis. Our results provide further evidence for sex-dependent effects of the TSNAX/DISC1 locus in the aetiology of SCZ and BPAD. Journal of Human Genetics (2012) 57, 523-530; doi: 10.1038/jhg.2012.62; published online 7 June 2012
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