Qi Zhai Li

Publications (2)35.53 Total impact

• Article: Genome-wide association study identifies a susceptibility locus for schizophrenia in Han Chinese at 11p11.2.

  Wei-Hua Yue, Hai-Feng Wang, Liang-Dan Sun, Fu-Lei Tang, Zhong-Hua Liu, Hong-Xing Zhang, Wen-Qiang Li, Yan-Ling Zhang, Yang Zhang, Cui-Cui Ma, [......], Ling-Jiang Li, Xin Yu, Qi-Zhai Li, Xun Huang, Lu-Xian Lv, Tao Li, Guo-Ping Zhao, Wei Huang, Xue-Jun Zhang, Dai Zhang
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  ABSTRACT: To identify susceptibility loci for schizophrenia, we performed a two-stage genome-wide association study (GWAS) of schizophrenia in the Han Chinese population (GWAS: 746 individuals with schizophrenia and 1,599 healthy controls; validation: 4,027 individuals with schizophrenia and 5,603 healthy controls). We identified two susceptibility loci for schizophrenia at 6p21-p22.1 (rs1233710 in an intron of ZKSCAN4, P(combined) = 4.76 × 10(-11), odds ratio (OR) = 0.79; rs1635 in an exon of NKAPL, P(combined) = 6.91 × 10(-12), OR = 0.78; rs2142731 in an intron of PGBD1, P(combined) = 5.14 × 10(-10), OR = 0.79) and 11p11.2 (rs11038167 near the 5' UTR of TSPAN18, P(combined) = 1.09 × 10(-11), OR = 1.29; rs11038172, P(combined) = 7.21 × 10(-10), OR = 1.25; rs835784, P(combined) = 2.73 × 10(-11), OR = 1.27). These results add to previous evidence of susceptibility loci for schizophrenia at 6p21-p22.1 in the Han Chinese population. We found that NKAPL and ZKSCAN4 were expressed in postnatal day 0 (P0) mouse brain. These findings may lead to new insights into the pathogenesis of schizophrenia.
  Nature Genetics 12/2011; 43(12):1228-31. · 35.53 Impact Factor
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  Available from: ebiotrade.com

  Article: Neighboring-nucleotide effects on the mutation patterns of the rice genome.

  Hui Zhao, Qi Zhai Li, Chang Qing Zeng, Huan Ming Yang, Jun Yu
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  ABSTRACT: DNA composition dynamics across genomes of diverse taxonomy is a major subject of genome analyses. DNA composition changes are characteristics of both replication and repair machineries. We investigated 3,611,007 single nucleotide polymorphisms (SNPs) generated by comparing two sequenced rice genomes from distant inbred lines (subspecies), including those from 242,811 introns and 45,462 protein-coding sequences (CDSs). Neighboring-nucleotide effects (NNEs) of these SNPs are diverse, depending on structural content-based classifications (genome-wide, intronic, and CDS) and sequence context-based categories (A/C, A/G, A/T, C/G, C/T, and G/T substitutions) of the analyzed SNPs. Strong and evident NNEs and nucleotide proportion biases surrounding the analyzed SNPs were observed in 1-3 bp sequences on both sides of an SNP. Strong biases were observed around neighboring nucleotides of protein-coding SNPs, which exhibit a periodicity of three in nucleotide content, constrained by a combined effect of codon-related rules and DNA repair mechanisms. Unlike a previous finding in the human genome, we found negative correlation between GC contents of chromosomes and the magnitude of corresponding bias of nucleotide C at -1 site and G at +1 site. These results will further our understanding of the mutation mechanism in rice as well as its evolutionary implications.
  Genomics Proteomics & Bioinformatics 09/2005; 3(3):158-68.