Aims
To validate the above findings in a Han Chinese population.
Method
We analysed the single nucleotide polymorphisms (SNPs)
in the newly identified schizophrenia candidate loci and
predicted MIR137 target genes based on our published Han
Chinese populations (BIOX) GWAS data. We then analysed 18
SNPs from the candidate regions in an independent cohort
that consisted of 3585 patients with schizophrenia and 5496
controls of Han Chinese ancestry.
Results
We replicated the associations of five markers (P50.05),
including three that were located in the predicted MIR137
target genes. Two loci (ITIH3/4: rs2239547, P = 1.17610710 and
CALN1: rs2944829, P = 9.9761079
) exhibited genome-wide
significance in the Han Chinese population.
Conclusions
The ITIH3/4 locus has been reported to be of genome-wide
significance in the European population. The successful
replication of this finding in a different ethnic group provides
stronger evidence for the association between schizophrenia
and ITIH3/4. We detected the first genome-wide significant
association of schizophrenia with CALN1, which is a predicted
target of MIR137, and thus provide new evidence for the
associations between MIR137 targets and schizophrenia.