SLC34 A1和 RGS14单核苷酸多态性与阿德福韦酯治疗的慢性乙型肝炎患者血磷浓度的相关性

目的：探讨SLC34A1（rs6420094）和RGS14（rs4074995）单核苷酸多态性与长期服用阿德福韦酯治疗的慢性HBV感染者血磷浓度的相关性。方法选取2012年10月至2013年8月河北医科大学第三医院连续服用阿德福韦酯（10 mg／d）单药或联合治疗至少2年的慢性HBV感染者91例，其中低磷血症患者31例，血磷正常患者60例。应用聚合酶链反应-限制性片段长度多态性分析法测定两位点的基因型，应用χ^2检验分析两位点等位基因分布频率与血磷浓度的关系。结果低磷血症组中，rs6420094基因A／A、A／G和G／G型的例数分别为13，13和5例，而血磷正常组上述基因型的例数分别为35，24和1例。此位点的等位基因A在血磷正常组出现的频率高于低磷血症组（78．3％∶62．9％），两组比较差异有统计学意义（χ^2＝4．947，P＜0．05）。低磷血症组中，rs4074995基因A／A、A／G和G／G型的例数分别为2，11和18例，而血磷正常组上述基因型的例数分别为1，21和38例，等位基因分布频率在两组间差异无统计学意义（χ^2＝0．625，P＞0．05）。结论 rs6420094多态性可能会影响长期服用阿德福韦酯治疗的慢性HBV感染者的血磷浓度。

Association of SLC34A1 and RGS14 polymorphisms with serum phosphorus levels in chronic hepatitis B patients following long-term treatment of adefovir dipivoxil

Objective To investigate the association of SLC34A1 （ rs6420094 ） and RGS14 （rs4074995） polymorphisms with serum level of phosphorus in chronic hepatitis B virus （HBV） infection patients following long-term adefovir dipivoxil （ ADV ） treatment.Methods Ninety one patients with chronic HBV infections admitted in Third Hospital of Hebei Medical University during October 2012 and August 2013 were enrolled in the study.All patients received ADV treatment （ monotherapy or combination therapy） for at least two years, among whom 31 had hypophosphatemia and 60 had normal serum phosphorus levels.rs6420094 and rs4074995 were genotyped by polymerase chain reaction-restrictive fragment length polymorphism （ PCR-RFLP ） analysis.The relationship between allele frequency and serum phosphorus concentration was analyzed by Chi-Square test.Results In hypophosphatemia group, there were 13, 13, and 5 patients with genotype A/A, A/G and G/G at rs6420094, respectively;while in patients with normal serum phosphorus levels, there were 35, 24 and 1 patients with genotype A/A, A/G and G/G at rs6420094.The frequency of allele A at rs6420094 in patients with normal serum level of phosphorus was higher than that in hypophosphatemia group （ 78.3% vs.62.9%, χ^2 =4.947, P 〈0.05 ）.In hypophosphatemia group, there were 2, 11, and 18 patients with genotype A/A, A/G and G/G at rs4074995, respectively;while in patients with normal serum phosphorus level, there were 1, 21 and 38＆amp;nbsp;patients with genotype A/A, A/G and G/G at rs6420094.There was no difference in the frequencies of alleles at rs4074995 between two groups （χ^2 =0.625, P ＆gt;0.05）.Conclusion The polymorphism of rs6420094 gene may be associated with the serum level of phosphorus in patients with chronic HBV infections following long-term treatment of ADV.