Page 103 - 2020年2月第31卷第3期
P. 103

Study on the Correlation between GRIN2B Gene Polymorphism and Han Population with Epilepsy in
        South Fujian
        LIAN Xia,ZHENG Liqun,QIAN Xiaorong,ZHAO Jiali,FEI Yan(Dept. of Pharmacy,No. 909 Hospital of Joint
        Logistics Support Force of PLA & the Affiliated Dongnan Hospital of Xiamen University,Fujian Zhangzhou
        363000,China)

        ABSTRACT   OBJECTIVE:To investigate the correlation between N-methyl-D-aspartate(NMDA)receptor subunit gene GRIN2B
        polymorphism and Han population with epilepsy in south Fujian. METHODS:In retrospective study,167 healthy people who had
        physical examination in the Affiliated Dongnan Hospital of Xiamen University were selected from Jan. 2017 to May 2018 as control
        group;163 epileptic patients who were monitored the blood concentration of sodium valproate were selected as epilepsy group. The
        clinical data and peripheral blood of 2 groups were collected. 12 loci of GRIN2B genotype(rs11055514,rs11055515,rs12814951,
        rs74816802,rs2160517,rs2193149,rs966664,rs1805476,rs1806201,rs1805522,rs3764030,rs1019385) in subjects were
        genotyped. Haploview 4.2 software was used to perform linkage disequilibrium(LD)analysis,and Pearson correlation was used to
        analyze haplotype. Distribution differences of wild homozygote(AA),mutant heterozygote(Aa)and mutant homozygote(aa)
        genotypes at 12 loci of GRIN2B gene between 2 groups were analyzed statistically by using GENO,TREND,DOM and REC.
        Logistic regression model was used to analyze the correlation of epilepsy induction among 12 loci of GRIN2B gene. RESULTS:
        Totally 12 loci of GRIN2B gene were all in line with Hardy-Weinberg equilibrium in 2 groups(P>0.05). There was an obvious LD
        phenomenon between the block1 composed of rs11055514,rs11055515,rs12814951,rs74816802,rs2160517,rs2193149 and
        rs966664 and the block2 composed of rs3764030 and rs1019385(D’>0.9,r >1/3). There was a correlation between CGGACAG
                                                                   2
        monoploid in block1 and the occurrence of epilepsy(P<0.05). There was statistical significance in the distribution difference of
        rs74816802 and rs2193149 between 2 groups(P<0.05). The mutation of rs2193149 locus may cause epilepsy(addition and effect
        of alleles:OR=1.529,L95=1.017,P=0.041). CONCLUSIONS:The mutation of GRIN2B gene rs2193149 locus may be one of
        the risk factors of epilepsy in Han population from south Fujian.
        KEYWORDS    N-methyl-D-aspartate;GRIN2B;Gene polymorphism;Epilepsy;Correlation


            癫痫是神经细胞异常放电导致中枢神经系统功能                          例 、女 性 74 例 ,年 龄(40.3 ± 15.9)岁 ,体 质 量 指 数
                                                                            2
                               [1]
        失常的一种神经系统疾病 。N-甲基-D-天冬氨酸(N-                        (22.68±1.53)kg/m 。两组受试者的性别、年龄、体质量
        methyl-D-aspartate,NMDA)受体是广泛存在于大脑神经               指数差异均无统计学意义(P>0.05)。本研究符合《赫
        元细胞中的兴奋性谷氨酸受体,参与调节兴奋性突触传                           尔辛基宣言》要求,患者本人或监护人均签署知情同
        递,在脑发育、回路形成、细胞迁移和分化、突触重塑等                          意书。
        方面发挥重要作用 。有研究表明,NMDA受体GRIN2B                       2 方法
                        [2]
        亚基过度激活是癫痫发作的一个重要原因                   [3-4] 。但经检    2.1  患者DNA提取
        索未发现 NMDA 受体 GRIN2B 亚基基因与癫痫相关性                         收集两组受试者的静脉血 2 mL,一周内采用美国
        的报道。本研究拟采用病例对照研究探讨 NMDA 受体                         Omega 核酸提取试剂盒进行 DNA 提取与纯化,光密度
        GRIN2B 亚基的 12 个位点基因多态性与癫痫的遗传易                      (OD 值)检测及 1.25%琼脂糖凝胶电泳检测合格后将
        感相关性。                                              DNA转移至96孔板,-80 ℃保存备用,用于后面的基因
        1 研究对象                                             分型等检测。
            采用回顾性研究方法,选取来厦门大学附属东南医                         2.2 基因位点的选择及引物设计
        院就诊的闽南地区汉族人,年龄 18~60 岁,其中进行体                           在国家生物技术信息中心网站(The National Cen-
        检的 167 例健康人员为对照组,监测过丙戊酸钠血药浓                        ter for Biotechnology Information,NCBI;https://www.nc-
        度的163例癫痫患者为癫痫组。癫痫患者入选标准:(1)                        bi.nlm.nih.gov/)中查找基因,在 GeneView(http://bc3.in-
        按照国际抗癫痫联盟(ILAE)对癫痫发作及癫痫综合征                         formatik.hu-berlin.de/)中选择该基因可能对蛋白质水平
        的分类标准 诊断为癫痫;(2)经脑电图证实为癫痫;(3)                       产生影响的单核苷酸多态性(SNP)位点,依据hapmap数
                  [5]
        病程≥6个月。排除标准:(1)外伤性癫痫;(2)有精神障                       据库或 1000 Genomes 数据库(http://www.international-
        碍或情感障碍等依从性差的患者;(3)有严重心、肺、肝、                        genome.org/),选取在中国汉族人群中最小等位基因频
        肾等功能障碍;(4)有中枢神经系统恶性肿瘤或变性疾                          率(MAF)大于 0.05,且等位基因对等分布的 SNP 位点,
        病;(5)脑卒中或者颅内感染所致癫痫;(6)有药物滥用                        综合 PubMed(PubMed.cn)和 Google(http://www.google.
        和酒精依赖患者。对照组的 167 例受试者中,男性 83                       cn)文献检索,所选位点通过美国国立卫生研究院网站
        例 、女 性 84 例 ,年 龄(38.6 ± 19.2)岁 ,体 质 量 指 数          (http://snpinfo.niehs.Nih.gov/)上的相关功能进行预测,
       (23.58±1.26)kg/m ;癫痫组的163例受试者中,男性89                 信息核实后筛选出易感性的 SNP 位点。结果筛选出与
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        中国药房    2020年第31卷第3期                                               China Pharmacy 2020 Vol. 31 No. 3  ·349  ·
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