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维生素D受体基因启动子Fok I多态性与尿钙浓度的关系 被引量:2

Association between single nucleotide polymorphism of vitamin D receptor start codon Fok Ⅰ and urinary calcium level
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摘要 目的 研究维生素D受体(VDR)基冈启动子Fok Ⅰ多态性与尿钙浓度之间的关系.方法 应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)对50例泌尿系结石(结石组)及50例非泌尿系结石患者(对照组)的外周血进行Fok I多态性检测,分析两组间基因型和等位基因的频率分布,并用常规尿生化分析仪比较两组的24 h尿钙浓度.结果 结石组基因型分布:FF 28%(14/50),Ff 52%(26/50),ff 20%(10/50);对照组:FF 34%(17/50),Ff 56%(28/50),ff10%(5/50),其中FF和ff基因型分布在两组中差异有统计学意义(P〈0.05).结石组与对照组等位基因F分布频率分别为54%(54/100)和62%(62/100)(P〉O.05);f分别为46%(461100)和38%(381100)(P〈0.05).结石组FF、Ff、ff基因型的24 h尿钙浓度分别为(0.030±0.008)mmol/kg、(0.037±0.009)mmol/kg和(0.081±0.013)mmol/kg,对照组分别为(0.028±0.006)mmol/kg、(0.036±0.002)mmol/kg和(0.043+0.003)mmol/kg,FF和Ff基因型在两组中尿钙浓度之间差异没有统计学意义(P〉0.05),而ff基因型差异有统计学意义(P〈0.05).结论 VDR基因起始密码子中Fok I多态性与泌尿系结石患者尿钙浓度升高有关系. Objective To investigate the association between single nucleotide polymorphism (SNP) of Fok Ⅰ [the vitamin D receptor (VDR) start codon] and urinary calcium level. Methods Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to determine the Fok Ⅰ ploymorphism in peripheral blood samples from SO patients with (urinary stone group) and another 50 without urinary stones (control group). The genotype distribution and frequencies of Fok Ⅰ allele were compared between two groups. 24-h urinary calcium level was measured by routine urinalysis. Results The distribution of genotypes (urinary stone group vs controls) was 28% (14/50) vs 34% (17/50) for FF, 52% (26/50) vs 56% (28/50) for Ff, 20% (10/50) vs 10% (5/50) for ff, with the statistical differencs for FF and ff between two groups (P〈0.05). The frequency of F allele was 54% (54/100) in urinary stone group vs 62% (62/100) in the controls (P〉0.05) , and 46% (46/100) in urinary stone group vs 38% (38/100) in the controls, respectively (P〈0.05). Level of 24-h urinary calcium level among FF, Ff and ff genetype- bearing subjects in urinary stone group was respectively (0.030±0.008) mmol/kg, (0.037±0.009) mmol/kg and (0.081±0.013) mmol/kg while (0.028±0.006) mmol/kg, (0.036±0.002) mmol/kg and (0.043±0.003) mmol/kg in control group, which was significantly different among ff genotype-bearing subjects (P〈0.05) but not among FF or Ff genotype-bearing ones (P〉0.05) of two groups. Conclusions The polymorphism of VDR start codon Fok I may be associared with increase of urinary calcium level in patients with urinary stones.
出处 《中华生物医学工程杂志》 CAS 2010年第1期38-41,共4页 Chinese Journal of Biomedical Engineering
基金 广东省科技基金面上项目(2006-63126) 广州市医药卫生项目(2006-YB-054)
关键词 尿路结石 受体 骨化三醇 多态性 单核苷酸 密码子 起始 尿钙 Urinary calculi Receptors, calcitriol Polymorphism, single nucleotide Codon, initiator Urinary calcium
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