期刊文献+

六号染色体短臂MHC区DRB3、DRB1基因多态性与精神分裂症症状的关系探讨 被引量:4

Study on the genetic association between DRB3 and DRB1 loci in the human MHC region and psychotic symptoms of schizophrenia
原文传递
导出
摘要 目的 探讨六号染色体短臂MHC区DRB3、DRB1基因多态性与精神分裂症症状的相关性。方法 采用聚合酶链反应 (PCR)和限制性内切酶片段长度多态性 (RFLP)方法检测两个基因位点上的单核苷酸多态性 (SNPs) ,并对 116例精神分裂症患者家系进行连锁不平衡分析。结果DRB1的SNP(rs70 795 4 :G/T碱基互换 )等位基因与关系妄想症状呈显著相关 (χ2 =5 .4 84 ,df=1,P =0 .0 19) ,GG、GT、TT三种基因型频率在关系妄想症状中呈显著相关 (χ2 =6 .771,df=2 ,P =0 .0 34)。rs70 795 4的三种基因型频率与情感淡漠症状呈显著相关 (χ2 =12 .110 ,df=4 ,P =0 .0 17)。结论 DRB1位点等位基因与关系妄想和情感淡漠症状高度相关 ,DRB1基因型与关系妄想症状高度相关。 Objective The genomic region of the human major histocompatibility complex (MHC) is located in the short arm of chromosome 6 (6p). Linkage studies have shown that the 6p region may contain a gene for schizophrenia, the MHC region has thus become particularly important in searching for the schizophrenia susceptibility gene.The present study was designed to investigate the genetic association of DRB3 and DRB1 genes with psychotic symptoms of schizophrenia. Methods PCR-based restriction fragment length polymorphism (RFLP) analysis was applied to genotype two single nucleotide polymorphisms (SNPs) located in the DRB3 locus and in the DRB1 one in 116 Chinese Han family trios consisting of fathers, mothers and affected offspring with schizophrenia.Chi-square (χ 2) test and haplotype-based relative risk (HRR) analysis were used on genotyping data. Results Data on HRR analysis did not show a genetic association either between the DRB3 locus and schizophrenia or between the DRB1 locus and the illness.However, the SNP rs707954, a G to T base change, present in the DRB1 locus showed strong association with idea of reference ( χ 2= 5.484 , df = 1, P = 0.019 ), while the genotype of rs707954 showed an association with idea of reference ( χ 2= 6.771 , df = 2, P = 0.034 ) as will as with apathy ( χ 2= 12.110 , df = 4, P = 0.017 ). Conclusion DRB1 locus seemed likely to be associated with psychotic symptoms as idea of reference and apathy. Further studies were necessary to reveal the relations between DRB1 gene or nearby locus with its susceptibility to schizophrenia.
出处 《中华流行病学杂志》 CAS CSCD 北大核心 2003年第9期815-818,共4页 Chinese Journal of Epidemiology
基金 国家自然科学基金资助项目 (3 9970 165 ) 国家"863"高技术研究发展计划基金资助项目 (2 0 0 1AA2 2 10 72 )
关键词 六号染色体短臂MHC区 DRB3 DRBl 基因多态性 精神分裂症 症状 易感基因 单核苷酸多态性 Schizophrenia Predisposing genes Single nucleotide polymorphisms
  • 引文网络
  • 相关文献

参考文献8

  • 1Inayama Y, Yoneda H, Sakai T, et al. Positive association between a DNA sequence variant in the serotonin 2A receptor gene and schizophrenia.Am J Med Genet, 1996,67:103-105.
  • 2Jonsson EG, Nimgaonkar VL, Zhang XR, et al. Trend for an association between schizophrenia and EBS1310, a marker in proximity to the dopamine D3 receptor gene. Am J Med Genet,1999,88: 352-357.
  • 3Morris AG, Gaitonde E, McKenna PJ, et al. CAG repeat expansions and schizophrenia:association with disease in females and with early age-at-onset. Hum Mol Genet, 1995,10:1957-1961.
  • 4O' Donovan MC, Owen MJ. Dynamic mutations and psychiatric genetics. Pschol Med,1996,26:1-6(30 ref.).
  • 5Straub RE, MacLean CJ, Kendler KS. The putative schizophrenia locus on chromosome 6p: a brief overview of the linkage studies.Mol Psychiatry, 1996,1:89-92.
  • 6Zamani MG, DeHert M, Spaepen M, et al. Study of the possible association of HLA Class Ⅱ CD4 and CD3 polymorphisms with schizophrenia. Am J Med Genet Neuropsychiatr Genet, 1994, 54 :372-377.
  • 7Wright P, Donaldson PT, Underhill JA, et al. Genetic association of the HLA DRB1 gene locus on chromosome 6p 21.3 with schizophrenia. Am J Psychiatry, 1996,153:1530-1533.
  • 8Arinami T, Otsuka Y, Hamguchi H, et al. Evidence suporting an association between the DRB1 gene and schizophzenia in Japanese.Schizophr Res, 1998,32:81-86.

同被引文献50

引证文献4

二级引证文献19

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部