摘要
目的研究亚甲基四氢叶酸还原酶基因C677T多态性与非综合征性唇腭裂的关系。方法利用聚合酶链反应-限制性片段长度多态性方法(PCR-RFLP),在168例非综合征性唇腭裂患者和192名正常对照中,对MTHFR基因C677T单核苷酸多态性(SNP,rs1801133)进行检测。利用拟合优度卡方检验,分析基因型分布频率是否符合Hardy-Weinberg平衡定律;应用UNPHASED软件包分析多态性位点与非综合征性唇腭裂的相关性。结果MTHFR C677T多态性基因型频率分布符合Hardy-Weinberg平衡;MTHFR C677T等位基因分布在NSCL/P组与对照组之间有显著性差异(P<0.05),正常组中T等位基因的频率明显高于NSCL/P组。结论MTHFR C677T多态性位点在中国人群中与非综合征性唇腭裂形成的发生相关联。
Objective To investigate the association of methylenetetrahydrofolate reductase polymorphisms with non-syndromic cleft lip with or without cleft palate (NSCL/P) Chinese population. Methods Genotyping of rs1801133 was conducted by PCR-based restriction fragment length polymorphism (RFLP) analysis in both 168 patients and the 192 controls. The X2 goodness-of-fit test was applied to test whether or not the genotypic distributions of rs1801133 would be in Hardy-Weinberg equilibrium. The UNPHASED program was used to perform X2 test for the associations. Results The genotypic distribution of C677T was not deviated from the Hardy-Weinberg equilibrium. The allele frequencies were significantly different between patients with NSCL/P and healthy individuals(P〈0.05). The frequency of T alleles in the patients was lower than that of C alleles compared with the healthy individuals. Conclusion The polymorphism of MTHFR C677T is associated with NSCL/P Chinese population and may play a role in the occurrence of this disease.
出处
《北京口腔医学》
CAS
2009年第1期16-19,共4页
Beijing Journal of Stomatology
基金
国家自然科学基金青年基金(No.30700907)
北京市自然科学基金(No.7082038)