SUMO4基因多态性与冠心病及2型糖尿病合并冠心病的关系

目的 探讨北京地区汉族人群小泛素样修饰蛋白4 (small ubiquitin-like modifier 4,SUMO4)基因多态性与冠状动脉粥样硬化性心脏病(coronary artery disease,CAD)及2型糖尿病(type 2 diabetes mellitus,T2DM)合并CAD的关系.方法 采用病例对照设计,入选369例单纯CAD患者(CAD组)、189例2型糖尿病合并CAD患者(T2DM+ CAD组)及500名健康个体(对照组).应用聚合酶链反应-高分辨熔解曲线技术结合测序验证法,检测SUMO4基因rs237025、rs237024及rs600739 3个单核苷酸多态性(single nucleotide polymorphisms,SNPs)位点的基因型与等位基因在3组间的分布,并通过分层分析比较SNPs不同基因型携带者的临床相关危险因素的差异.结果 3个SNPs的等位基因和基因型在3组间的分布差异无统计学意义(P＞0.05);通过分层分析,在T2DM+CAD组发现rs237025各基因型携带者的甘油三酯水平、rs600739各基因型携带者的体重指数水平的差异有统计学意义(P值分别为0.020和0.049),但组间多重比较仅发现rs237025的GG基因型携带者较GA及AA基因型携带者具有更高的甘油三酯水平(P＜0.01).结论 SUMO4基因多态性可能与北京地区汉族人群伴或不伴T2DM的CAD易感性无关.     

5-羟色胺2A受体基因多态性与抗抑郁药物治疗反应的关联研究

目的:探讨中国汉族抑郁症患者5-羟色胺2A(5-HT2A)受体基因rs6311多态性与抗抑郁药物疗效的关系。方法:对符合美国《诊断与统计手册:精神障碍》第四版(DSM-IV)重性抑郁障碍诊断标准的121例抑郁症患者予以艾司西酞普兰或帕罗西汀治疗,疗程6周。采用高温连接酶检测反应法(LDR)检测5-HT2A受体基因rs6311位点,分析其与抗抑郁药物疗效的关系。结果:①5-HT2A受体基因rs6311位点T等位基因、TT基因型在无效组的频率显著高于有效组(P<0.05)。②携带rs6311位点TT基因型患者的汉密尔顿抑郁量表(HAMD)减分值和减分率均显著低于携带CC基因型患者(P<0.05)。结论:5-HT2A受体基因rs6311位点多态性可能与5-羟色胺再摄取抑制剂(SSRIs)疗效有关,T等位基因、TT基因型可能为疗效差的预测因子。     

囊泡相关膜蛋白8基因多态性与冠状动脉粥样硬化性心脏病的相关性研究

目的 研究囊泡相关膜蛋白8(synaptobrevins/vesicle-associated membrane proteins 8,VAMP8)基因rs1010多态性在中国汉族人群中的分布及与冠状动脉粥样硬化性心脏病(简称冠心病)的相关性.方法 采用聚合酶链反应-限制性片段长度多态性技术,对汉族185例冠心病患者及149名正常人VAMP8 rs1010基因多态性,基因型及等位基因频率分布进行研究.结果 研究人群中存在VAMP8 rs1010基因多态性,基因型符合Hardy-Weinberg平衡,冠心病患者A等位基因频率显著高于对照组(67.3%VS 53.0%,P<0.05).Logistic回归分析得出:VAMP8基因(AA+AG)基因型是冠心病的独立危险因素,(AA+AG)基因型比GG基因型的比数比为1.969,95%可信区间为1.032～3.755.结论 VAMP8 rs1010基因多态性与冠心病有关,A等位基因可能是汉族人群冠心病的遗传危险因素.     

β2肾上腺素受体基因Arg16Gly位点多态性与华南人群哮喘相关性研究

目的探讨β2肾上腺素受体基因(ADRB2)SNP位点rs1042713即突变位点Arg16Gly的多态性与华南汉族人群支气管哮喘发病的相关性。方法采用病例对照研究,利用基质辅助激光解吸电离飞行时间质谱技术(MALDI-TOF-MS)对rs1042713进行基因分型,对实验结果运用χ2检验和二分类Logistic回归进行统计学相关性分析。结果 rs1042713多态位点AA、AG、GG 3种基因型在哮喘患者的频率为18.7%、76.0%和5.3%,与对照组(33.8%,44.6%和21.6%)相比具有显著差异(χ2=36.28,P<0.001);对年龄和性别进行校正后,发现相对于AA+GG基因型,携带AG基因型的哮喘发病风险增加(OR=4.37,95%CI:2.64~7.23)。结论华南汉族人群哮喘的发病机制可能与SNP rs1042713位点的单核苷酸多态性有关,杂合子基因型AG为其发病的危险因素。     

广西百色地区壮族男性人群骨密度与脂联素基因单核苷酸多态性的关系

背景：脂联素可在骨代谢中发挥重要作用。 目的：观察脂联素基因单核苷酸多态性与广西百色地区壮族男性骨密度的关系。 方法：选取广西百色地区壮族男性跟骨骨量减少患者,采用单碱基延伸的单核苷酸多态性分型技术对广西百色地区302例壮族男性的脂联素基因的5个单核苷酸多态性位点(rs1063539、rs12495941、rs266729和rs3774261)进行了基因分型。 结果与结论：以5个多态性位点作为自变量的多元 Logistic回归检测结果显示,仅rs3774261多态性与跟骨超声振幅衰减显著相关(OR=1.948,95%CI：1.184~3.203,P < 0.01),并独立于骨量减少的传统危险因素。对基因型进行纯合子与杂合子合并后的协方差分析显示,仅rs3774261的AG+GG与AA基因型的跟骨超声振幅衰减值差异有显著性意义(P < 0.05),AG+GG型对骨密度具有一定的保护作用,AA型是骨密度降低的危险因素。结果证实,脂联素基因第2内含子rs3774261位点多态性与中国百色地区壮族男性骨密度有一定关联。     

固醇调节元件结合蛋白1c基因多态性rs2297508、rs11868035与甘肃汉族、东乡族人群2型糖尿病的相关性

目的 探讨固醇调节元件结合蛋白1c(sterol regulatory element binding protein-lc,SREBP-lc)基因多态性rs2297508、rs11868035在甘肃汉族、东乡族人群中的分布及其与2型糖尿病(type 2diabetes mellitus,T2DM)的相关性.方法 选择汉族2型糖尿病患者342例以及正常对照343人,东乡族2型糖尿病患者218例以及正常对照238人,采用聚合酶链反应-变性高效液相色谱法检测SREBP-1c基因型,采用氧化酶法或放免法测定血糖、胰岛素及血脂水平.采用卡方检验进行统计学分析.结果 SREBP-lc基因多态位点rs2297508、rs11868035在汉族和东乡族正常对照者中的基因型和等位基因频率分布差异无统计学意义(P＞0.05).上述位点在汉族、东乡族人群2型糖尿病患者C等位基因和CC基因型频率均明显高于对照组,差异均有统计学意义(P＜0.01).在汉族对照组中,rs2297508的C等位基因携带者的低密度脂蛋白胆固醇水平明显高于GG者,其差异有统计学意义(P＜o.05).在东乡族对照组中,CC基因型的低密度脂蛋白胆固醇水平明显高于GG者,其差异有统计学意义(P＜0.05).结论 SREBP-lc基因多态性rs2297508、rs11868035在甘肃汉族和东乡族人群中均与2型糖尿病发病存在关联.C等位基因可能是罹患2型糖尿病的危险因素之一.上述多态性在汉族和东乡族人群中的分布并无差异.SREBP-le基因多态性rs2297508可能与低密度脂蛋白胆固醇升高有关.     

CDKN2A/2B基因多态性与妊娠糖尿病相关

目的研究CDKN2A/2B基因rs10811661的单核苷酸多态性(SNP),探讨其与妊娠糖尿病(GDM)的相关性。方法选取鲁西南地区正常糖耐量孕妇(NGT)100例、GDM患者120例、2型糖尿病(T2DM)患者100例作为研究对象,提取基因组DNA,采用PCR-RFLP方法检测CDKN2A/2B基因rs10811661多态性。结果 CDKN2A/2B基因rs10811661的TT、TC、CC 3种基因型分布在NGT组与GDM组间有显著差别(P<0.01),GDM组危险等位基因T分布频率显著高于NGT组(P<0.05)。3种基因型及等位基因分布在NGT组与T2DM组之间亦有显著差别(P<0.05)。结论在鲁西南地区女性人群中,CDKN2A/2B基因rs10811661 T/C多态性可能与妊娠糖尿病有明显相关性。     

SLC30A8基因多态性与肾移植后糖尿病的相关性

背景：前期研究已经发现,2型糖尿病的易感基因脂联素基因、钙蛋白酶10基因等与中国肾移植患者移植后糖尿病的发生显著相关。猜测其他2型糖尿病的易感基因是否也与移植后糖尿病相关。 目的：分析锌转运蛋白-8(SLC30A8)基因多态性与移植后糖尿病的相关性。 方法：采用实时荧光定量PCR法检测97例移植后糖尿病患者和301例未发生移植后糖尿病的肾移植患者(对照组)的SLC30A8 rs13266634的基因型,采用 logistic 回归分析该基因多态性与移植后糖尿病的相关性。 结果与结论：移植后糖尿病组和对照组患者rs13266634的等位基因频率和基因型分布差异具有显著性意义  (P < 0.05)。用性别、移植时年龄、体质量和体质量指数等危险因素进行校正后,CC基因型患者肾移植后发生移植后糖尿病的风险是TT基因型患者的2.108倍(OR=2.108,95%CI: 1.075-4.131,P=0.044);CC+CT基因型患者肾移植后发生移植后糖尿病的风险是TT基因型患者的1.862倍(OR=1.862,95%CI: 1.049-3.306,P=0.034)。提示SLC30A8基因rs13266634的C等位基因是肾移植后发生移植后糖尿病的独立危险因素。     

IL-23R基因多态性与吉林人群强直性脊柱炎易感性的关联研究

目的:探讨吉林人群IL-23R基因rs7517847和rs10489629位点的单核苷酸多态性与强直性脊柱炎易感性的关系。方法:采用PCR-RFLP方法对188例强直性脊柱炎患者进行IL-23R基因多态性检测,与100例健康者对照分析。结果:两个SNP位点(rs7517847和rs10489629)各基因型频率和等位基因频率在AS组与对照组之间的分布差异均有统计学意义(P0.05),并在假设遗传方式下,rs7517847位点的纯合突变GG基因型与(TG+TT)基因型比较;rs10489629位点的纯合突变AA基因型与(GA+GG)基因型比较,其频率分布差异在AS组与对照组之间也具有统计学意义(P0.05)。结论:IL-23R基因rs7517847和rs10489629位点的多态性均与吉林人群AS易感性有关;携带G等位基因(或A等位基因)且为GG(或AA)基因型的个体患AS的倾向性增大,可能是患AS的易感因素之一。     

急性左心衰合并肺部感染患者心房利钠肽前体A基因多态性和炎性标志物水平分析

目的:分析急性左心衰合并肺部感染患者心房利钠肽前体A (NPPA)基因多态性分布和炎性标志物水平变化。方法:选择本院收治的急性左心衰患者120例,按其是否合并肺部感染分为左心衰感染组和左心衰组,各60例,以及同期体检的非左心衰或非左心衰合并感染人群60例为对照组。收集各组外周静脉血,采用基因测序仪检测NPPA不同基因型分布;采用免疫发光和免疫散射比浊法分别测定左心衰感染组NPPA的rs5063、rs5065不同基因型患者降钙素原(PCT)和C-反应蛋白(CRP)水平。结果:三组间NPPA基因rs5063、rs5065的AA、GG基因型分布有明显差异(P0.05或P0.01),而AG基因型三组间分布无明显差异(P0.05)。左心衰组和左心衰感染组的AA基因型患者比率明显高于对照组(P0.01),GG基因型患者比率明显低于对照组(P0.01);左心衰组与左心衰感染组之间rs5063、rs5065的AA、AG、GG基因型比率差异无统计学意义(P0.05)。左心衰感染组患者NPPA基因(rs5063、rs5065)的AA、AG、GG基因型患者血清PCT、CRP水平差异均无统计学意义(P0.05)。结论:NPPA的rs5063和rs5065基因型可能与急性左心衰易感性有关。     

Analysis of vesicular monoamine transporter 2 polymorphisms in Parkinson’s disease

Generation of reactive oxygen species during dopamine (DA) oxidation could be one of the factors leading to the selective loss of nigral dopaminergic neurons in Parkinson’s disease (PD). Vesicular monoamine transporter type 2 (VMAT2) proteins in nerve terminals uptake dopamine into synaptic vesicles, preventing its cytoplasmic accumulation and toxic damage to nigral neurons. Polymorphisms in VMAT2 gene and in its regulatory regions might therefore serve as genetic risk factors for PD. In the present study, we have analyzed 8 single-nucleotide polymorphisms (SNPs) located within/around the VMAT2 gene for association with PD in an Italian cohort composed of 704 PD patients and 678 healthy controls. Among the 8 SNPs studied, only the 2 located within the promoter region (rs363371 and rs363324) were significantly associated with PD. In the dominant model, odds ratios were 0.72 (95% confidence interval [CI]: 0.6–0.9, p < 0.005) for rs363371 and 0.76 (95% CI: 0.6–0.9, p = 0.01) for rs363324; in the additive model, odds ratios were 0.78 (95% CI: 0.65–0.94, p = 0.008) for rs363371 and 0.85 (95% CI: 0.7–20.92, p = 0.04) for rs363324. There were no significant relationships between the remaining SNPs (rs363333, rs363399, rs363387, rs363343, rs4752045, and rs363236) and the risk of sporadic PD in any genetic model. This study adds to the previous evidence suggesting that variability in VMAT2 promoter region may confer a reduced risk of developing PD, presumably via mechanisms of gene overexpression.     

抑郁症共病糖尿病患者的皮质醇水平与帕罗西汀治疗的疗效

目的:探讨抑郁症共病2型糖尿病的患者中皮质醇水平的相关因素,了解皮质醇水平与帕罗西汀抗抑郁疗效的关系。方法:选取符合中国精神障碍分类与诊断标准第3版(CCMD-3)中抑郁发作的诊断标准,并合并2型糖尿病的患者200例。根据血清皮质醇的浓度,分为皮质醇升高组(n=100)和皮质醇正常组(n=100),用汉密顿抑郁量表(HAMD)测查抑郁严重程度,用自编问卷调查人口学资料、生活习惯及病程等信息,计算体质量指数,测查糖化血红蛋白水平。对两组患者使用抗抑郁药物帕罗西汀治疗8周,使用HAMD减分率评估疗效。结果:Logistic回归分析显示,抑郁症共病2型糖尿病的患者皮质醇升高的危险因素包括糖化血红蛋白≥6.5%(6.5%～8.0%,OR=2.72;≥8.0%,OR=5.69),HAM D评分≥20分(OR=3.31)、体质量指数≥25(OR=3.56)、年龄35～50岁(OR=2.37);保护因素包括每周运动时间≥4 h(OR=0.28)、抑郁病程12个月(OR=0.10)。帕罗西汀治疗8周后,皮质醇升高组患者的HAMD减分率低于皮质醇正常组[(0.66±0.11)vs.(0.86±0.05),P0.01],HAMD减分率与糖化血红蛋白水平(β=-0.26,P0.05)和皮质醇水平呈负相关(β=-0.17,P0.05)。结论:本研究提示导致抑郁症共病2型糖尿病患者皮质醇升高的危险因素可能为糖化血红蛋白高、体质量指数高、抑郁症状重、年龄35～50岁;保护因素可能为运动多、抑郁症病程长。皮质醇和糖化血红蛋白水平较高的患者帕罗西汀疗效可能较差。     

IL-10 基因多态性与溃疡性结肠炎易感性的关系及对临床预后的影响

目的:探讨IL-10 多态位点的基因多态性与溃疡性结肠炎的易感性及对临床预后的影响。方法:采用病例对照研究设计,选取80例溃疡性结肠炎患者作为病例组,另外选性别和年龄匹配的健康受试者作为对照组。所有患者治疗前抽取空腹静脉血并提取DNA,设计819 T/ C(rs1800871)、592A/C(rs1800872)、 -1082 G/ A(rs1800896)PCR 引物进行PCR 扩增,扩增产物酶切后进行琼脂糖凝胶电泳以确定基因类型,采用Logistic 回归计算校正相对危险度(OR)和95% 置信区间(95%CI)评价基因多态性与溃疡性结肠炎的易感性,并分析对临床预后的影响。结果:(1) 病例组患者IL鄄10 多态位点rs1800896 基因类型AA、GG 和AG 分布频率与对照组受试者差异具有统计学意义(P<0.01);(2)与rs1800896 基因型AA 比较,基因型为GG 的患者溃疡性结肠炎危险性显著升高(P<0.01),并且临床缓解率显著降低(P<0.01);(3)病例组患者IL-10多态位点rs1800871 基因类型CC、CT 和TT 分布频率与对照组受试者差异无统计学意义(P>0.05);(4)病例组患者IL鄄10 多态位点rs1800872 基因类型AA、AC 和CC 分布频率与对照组受试者差异无统计学意义(P>0.05)。结论:IL-10 多态位点rs1800896 基因类型GG 可增加溃疡性结肠炎的易感性,并且显著降低患者的临床预后。     

2型糖尿病家系与尾加压素2基因多态性

目的探讨我国常州地区汉族家系2型糖尿病与尾加压素2(urotensinⅡ,UT-Ⅱ)基因rs228648多态性位点的关系。方法采用家系内外对照的病例对照研究,并设置无家族史的普通病例组,应用聚合酶链反应-限制性片段长度多态性技术,对rs228648(G/A)多态性进行基因分型。结果家系中携带AG和AA基因型者患病风险分别为GG型的1.98(95%可信区间=1.19～3.29)和2.46(95%可信区间=1.39～4.34)倍,家系病例组A等位基因频率高于内对照组及普通病例组(P=0.01)。内对照组A等位基因频率高于外对照组(P=0.001)。内对照组携带AG基因型者的胰岛素抵抗指数、胰岛素敏感指数以及胰岛初期分泌功能指数均高于GG基因型者(P<0.05)。结论rs228648多态性位点变异可能是2型糖尿病的危险因素之一,家系人群该基因变异与其胰岛功能间存在关联。     

抑郁症共病2型糖尿病患者的认知功能及神经内分泌指标

目的:探讨共病糖尿病后抑郁症的认知功能特点及其与神经内分泌的相关性。方法:按照目的抽样的方法,选取符合中国精神障碍分类方案与诊断标准第3版诊断标准的门诊和住院抑郁症患者84例,其中合并2型糖尿病的患者为共病组(n=42);未合并糖尿病的患者为非共病组(n=42)。对两组进行汉密顿抑郁量表(HAMD)、汉密顿焦虑量表(HAMA)、伦敦塔、言语流畅性、言语记忆、Stroop、连线测验、威斯康星卡片(WCST)测查,并测定血浆皮质醇(COR)与促肾上腺皮质激素(ACTH)、促甲状腺激素(TSH)、游离甲状腺素(F4)、游离三碘甲状腺原氨酸(F3)浓度。共病组28例和非共病组25例完成认知功能和血浆测查。结果:共病组HAMD总分和躯体化障碍、认知障碍因子分高于非共病组(均P0.05),ACTH和COR的水平高于非共病组(均P0.05),两组TSH、F4、F3差异无统计学意义。共病组的WCST的完成第一分类所需的应答数、错误应答数、持续应答数、持续性错误数和非持续性错误数均高于非共病组(均P0.05);共病组的伦敦塔因子分评分和认知功能的语言记忆评分方面的评分低于非共病组(P0.05);而WCST完成分类数和连线测验、言语流畅性和Stroop等得分差异无统计学意义(P0.05)。共病组TOL与HAMD得分之间呈负相关(r=-0.53,P0.01);COR水平同WCST持续性错误得分呈正相关(r=0.38,P0.05),与RVR和Stroop得分呈负相关(r=-0.56,-0.55;均P0.01);ACTH水平同WCST持续性错误呈正相关(r=0.528,P0.01),与HVLT-R和Stroop得分呈负相关(r=-0.64,-0.60;均P0.01)。非共病组认知功能和HAMD评分、HAMA评分以及神经内分泌指标之间无统计学相关。结论:共病糖尿病后抑郁程度加重,认知功能受损严重,主要表现在执行功能、注意力和语言记忆方面,可能与皮质醇和促肾上腺皮质激素升高有关。     

Association of ERCC gene polymorphism with osteosarcoma risk

BackgroundThe relationship between ERCC gene polymorphism and osteosarcoma risk / overall survival of osteosarcoma is still conflicting, and this meta-analysis was performed to assess these associations.Material and methodsThe association studies were identified from PubMed, and eligible reports were included and calculated using meta-analysis method.ResultsFour studies were included for the association of ERCC gene polymorphism with osteosarcoma risk, and nine studies were recruited into this meta-analysis for the relationship between ERCC gene polymorphism and overall survival of osteosarcoma. The meta-analysis indicated that ERCC1 rs3212986 (8092 C>A) gene polymorphism, ERCC1 rs11615 (19007 T>C) gene polymorphism, ERCC2 rs1799793 (A>G) gene polymorphism, ERCC2 rs13181 (Lys751Gln) gene polymorphism were not associated with osteosarcoma risk. ERCC1 rs2298881 (C>A) gene polymorphism, ERCC1 rs3212986 (8092 C>A) gene polymorphism, ERCC1 rs11615 (19007 T>C) gene polymorphism, ERCC2 rs1799793 (Asp312Asn) gene polymorphism were not associated with overall survival of osteosarcoma. Interestingly, ERCC2 rs13181 A allele and GG genotype were associated with overall survival of osteosarcoma, but AA genotype not (A allele: OR = 0.78, 95% CI: 0.65–0.93, P = 0.007; GG genotype: OR = 1.32, 95% CI: 1.05–1.65, P = 0.02; AA genotype: OR = 0.69, 95% CI: 0.45–1.04, P = 0.08).ConclusionERCC2 rs13181 A allele and GG genotype were associated with overall survival of osteosarcoma.     

PCSK9基因rs2479409位点多态性与认知障碍相关

目的探讨前蛋白转化酶枯草溶菌素9(PCSK9)基因rs2479409位点多态性与认知功能障碍的相关性。方法在中国江苏省如皋县开展的以人群为基础的病例对照研究中,共纳入了1 707例年龄70~84岁的研究对象,使用改良长谷川痴呆量表(HDS-R)评价该人群认知功能,并检测了该人群中PCSK9基因rs2479409位点单核苷酸多态性情况。结果该人群PCSK9基因rs2479409多态性主要以GG和AG基因型存在。认知障碍组和对照组在rs2479409位点的等位基因频率、基因型频率分布有差异(P0.05)。A等位基因为认知障碍保护性因素,GG基因型相对于AA基因型1.66倍增加认知障碍发生风险(OR=1.66,95%CI 1.16~2.36,P0.01),调整相关混杂因素后仍有统计学差异(P0.05)。结论 PCSK9基因rs2479409位点多态性与认知障碍相关。     

Association between interluekin-17 gene polymorphisms and the risk of cervical cancer in a Chinese population

We conducted a study to analyze the association of three common SNPs of IL-17A rs2275913 and rs3748067 and IL-17F rs763780 gene polymorphisms with the risk of cervical cancer in a Chinese population. Our study included 352 cervical cancer patients and 352 controls between January 2013 and December 2014. Genotyping of IL-17A rs2275913 and rs3748067 and IL-17F rs763780 genes was performed by multiplex PCR assays using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). By χ² test, there was significantly difference in the genotype distribution of IL-17A rs2275913 between cervical cancer patients and control subjects (χ²=11.45, P=0.003). By conditional logistic regression analysis, we found that individuals with the GA and AA genotypes were associated with an increased risk of cervical cancer when compared with the GG genotype in codominant model, and the adjusted Ors (95% CI) were 1.57 (1.13-2.18) and 2.01 (1.15-3.49), respectively. In dominant model, we found that the GA+AA genotype of rs2275913 was correlated with a moderate increased risk of cervical cancer compared with the GG genotype (OR=1.64, 95% CI=1.20-2.24). We only found significant interaction between rs2275913 polymorphism and HPV-16 or 18 infection in the risk of cervical cancer (P for interaction <0.05). In conclusion, our study suggests that IL-17A rs2275913 polymorphism may affect the development of cervical cancer in codominant and dominant models, and this gene polymorphism has interaction with HPV-16 or 18 infection.     

妊娠期糖尿病患者血清中APN表达及其基因rs16861194A/G位点多态性分析

目的了解深圳地区妊娠期糖尿病(Gestational Diabetes Mellitus,GDM)患者血清中脂联素(Adiponectin,APN)、空腹胰岛素(fasting insulin,FINS)及胰岛素抵抗指数(HOMA-IR)表达情况,并分析APN基因位点rs16861194 A/G单核苷酸多态性。方法收集2017年3月~2018年9月在深圳市龙华区人民医院妇产中心进行产前检查时诊断为GDM孕妇132例为GDM组,正常妊娠孕妇150例为对照组,分别采用酶联免疫吸附法(ELISA)检测孕妇血清中APN和FINS水平,用AU5800全自动生化分析仪检测血清中空腹血糖(Fasting plasma glucose,FPG),并采用直接测序法检测APN基因位点rs16861194A/G基因多态性,比较分析两组血清中APN、FINS和HOMA-IR水平及APN基因位点rs16861194A/G基因型和等位基因频率之间的差异性。结果 GDM组孕妇血清中APN水平明显低于对照组,差异有统计学意义(P<0.05),而FPG,FINS及HOMA-IR水平明显高于对照组,差异有统计学意义(P<0.05);GDM组孕妇APN基因rs16861194A/G位点GG基因型和G等位基因检出率分别为21.97%和41.29%,明显高于对照组的4.67%和20.67%,差异均有统计学意义(χ~2=5.0954~2.8159,P<0.05);GG基因型GDM患者血清中APN水平明显低于其它基因型,差异有统计学意义(P<0.05),而FPG,FINS及HOMA-IR水平明显高于其它基因型,差异有统计学意义(P<0.05)。结论深圳地区GDM患者的APN基因rs16861194A/G位点存在多态性分布,其中GG基因型及G等位基因检出率明显升高,可能导致本地区GDM患者发病的易感危险基因之一。     

Association between the interaction of SMAD3 polymorphisms with body mass index and osteoarthritis susceptibility

Purpose: This study aimed to investigate the relationship between the interaction of SMAD3 polymorphisms (rs12102171 and rs2289263) with body mass index (BMI) and osteoarthritis (OA) susceptibility. Methods: This study involved 112 OA patients and 120 healthy people. The controls were frequency-matched with the cases by age and sex. Hardy-Weinberg equilibrium (HWE) was tested by χ² test in the control group. The rs12102171 and rs2289263 polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. The relative risk of OA was represented by odds ratio (OR) with 95% confidence interval (CI) calculated by chi-squared test. Gene-environment interaction was analyzed by crossover analysis. Results: The TT genotype and T allele of SMAD3 rs12102171 polymorphism were more frequent in case than control groups (P=0.04 in both of two polymorphisms), which increased the risk of OA (OR=3.39, 95% CI=1.03-11.11 and OR=1.64, 95% CI=1.03-2.59). GG genotype and G allele were also the risk factors for OA (OR=3.22, 95% CI=1.09-9.51 and OR=1.57, 95% CI=1.02-2.42). The BMI had interactions with genotype CC and CT+TT of rs12102171 and TT and TG+GG of rs2289263 (rs12102171: OR=2.15, P=0.02 and OR=3.99, P=1.00×10^-3; rs2289263: OR=2.73, P=4.00×10^-3 and OR=4.67, P=0). Conclusions: CC and CT+TT and TT and TG+GG genotypes of SMAD3 rs12102171 and rs2289263 polymorphisms together with BMI may be susceptible factors to OA, and interactions there between can possibly confer risk to OA.