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Prog Neuropsychopharmacol Biol Psychiatry. 2014 Jun 3;51:34-8. doi: 10.1016/j.pnpbp.2013.12.004. Epub 2014 Jan 2.

ITIH family genes confer risk to schizophrenia and major depressive disorder in the Han Chinese population.

Author information

1
Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200030, PR China; College of Life Science, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia, PR China.
2
Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200030, PR China.
3
Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200030, PR China; Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, PR China.
4
Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, PR China.
5
Wuxi Mental Health Center, Jiangsu Wuxi 214151, PR China.
6
Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200030, PR China; Shanghai Changning Mental Health Center, 299 XieHe Road, Shanghai 200042, PR China; Institute of Neuropsychiatric Science and Systems Biological Medicine, Shanghai Jiao Tong University, Shanghai 200042, PR China.
7
Wuxi Mental Health Center, Jiangsu Wuxi 214151, PR China. Electronic address: zaohuocheng@sina.com.

Abstract

As a major extracellular matrix component, ITIHs played an important role in inflammation and carcinogenesis. Several genome-wide association studies have reported that some positive signals which were derived from the tight linkage disequilibrium region on chromosome 3p21 were associated with both schizophrenia and bipolar disorders in the Caucasian population. To further investigate whether this genomic region is also a susceptibility locus of schizophrenia and major depressive disorder in the Han Chinese population, we conducted this study by recruiting 1235 schizophrenia patients, 1045 major depressive disorder patients and 1235 healthy control subjects in the Han Chinese samples for a case-control study. We genotyped seven SNPs within this region using TaqMan® technology. We found that rs2710322 was significantly associated with schizophrenia (adjusted P(allele) = 0.0018, adjusted P(genotype) = 0.006, OR [95% CI] = 1.278 [1.117-1.462]) while rs1042779 was weakly associated with schizophrenia (adjusted P(allele) = 0.048, OR [95% CI] = 1.164 [1.040-1.303]) and major depressive disorder (adjusted P(allele) = 0.042, OR [95% CI] = 1.178 [1.047-1.326]); it was also our finding that rs3821831 was positively associated with major depressive disorder (adjusted P(allele) = 0.003, adjusted P(genotype) = 0.006, OR [95% CI] = 1.426 [1.156-1.760]). Furthermore, no haplotype was found to be associated with schizophrenia and major depressive disorder. Via the association analysis which combines the schizophrenia and major depressive disorder cases, we also notice that rs1042779 and rs3821831 were significantly associated with combined cases (rs1042779: adjusted P(allele) = 0.012, adjusted P(genotype) = 0.018, OR [95% CI] = 1.171 [1.060-1.292]; rs3821831:adjusted P(genotype) = 0.012, OR [95% CI] = 1.193 [1.010-1.410]). Our results revealed that the shared genetic risk factors of both schizophrenia and major depressive disorder exist in ITIH family genes in the Han Chinese population.

KEYWORDS:

Association; ITIH family genes; Major depressive disorder; SNP; Schizophrenia

PMID:
24389398
DOI:
10.1016/j.pnpbp.2013.12.004
[Indexed for MEDLINE]
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