BTNL2、DVWA基因多态性与青海地区回族原发性膝骨关节炎的相关性

摘要 目的：探讨BTNL2、DVWA基因多态性与青海地区回族原发性膝骨关节炎的相关性。方法：选取2018年12月至2020年5月本院确诊膝骨关节炎患者100例作为病例组,同时选取同期健康体检人群100例作为对照组。通过标准聚合酶链反应和限制性片段长度多态性 (PCR-RLFP)对BTNL2 rs10947262、DVWA rs11718863基因多态性进行检查,同时检查血清BTNL2、DVWA、hs-CRP、IL-4、IL-6、MMP-2、TNF-α、TG、HDL-C、LDL-C水平。分析BTNL2、DVWA基因多态性与原发性膝骨关节炎的相关性。结果：病例组血清BTNL2、DVWA、hs-CRP、IL-4、IL-6、MMP-2、TNF-α水平明显高于对照组（P<0.05）。病例组BTNL2 rs10947262 AA基因型比例高于对照组（62.00% vs 24.00%）（P<0.05）;BTNL2 rs10947262 AA基因型能增加原发性膝骨关节炎易感性（OR=11.32、95%CI：5.96~22.98）（P<0.05）。病例组BTNL2 rs10947262 A等位基因频率比例高于对照组（76.00% vs 39.00%）（P<0.05）;BTNL2 rs10947262 A等位基因频率能增加原发性膝骨关节炎易感性（OR=2.95、95%CI：2.45~3.72）（P<0.05）。病例组DVWA rs11718863 AA基因型比例高于对照组组（58.00% vs 20.00%）（P<0.05）;DVWA rs11718863 AA基因型能增加原发性膝骨关节炎易感性（OR=10.26、95%CI：5.12~25.63）（P<0.05）。病例组DVWA rs11718863 A等位基因频率比例高于对照组（68.00% vs 50.00%）（P<0.05）;DVWA rs11718863 A等位基因频率能增加原发性膝骨关节炎易感性（OR=2.69、95%CI：2.10~4.26）（P<0.05）。多因素Logistic回归分析发现：血清BTNL2、DVWA水平升高、BTNL2 AA基因型比例、BTNL2 A等位基因型比例、DVWA AA基因型比例、DVWA A等位基因型比例升高为原发性膝骨关节炎发生的危险因素（P＜0.05）。结论：BTNL2 rs10947262 AA基因型、A等位基因频率,DVWA rs11718863 AA基因型、A等位基因频率增加可能与青海地区回族原发性膝骨关节炎易感相关。     

KDR rs1870377基因与经皮冠状动脉介入治疗术后氯吡格雷耐药相关性分析

摘要 目的：探讨与分析KDR rs1870377基因与经皮冠状动脉介入治疗（percutaneous coronary intervention, PCI）术后氯吡格雷耐药相关性。方法：2018年5月到2021年2月选在航天中心医院（北京大学航天临床医学院）老年医学一科住院的冠心病患者97例作为研究对象,所有患者在PCI术后判定氯吡格雷耐药情况,检测KDR rs1870377基因多态性状况并进行相关性分析。结果：在97例患者中,PCI术后氯吡格雷耐药22例(耐药组),耐药率为22.7 %。耐药组的空腹血糖、总胆固醇、甘油三酯等与非耐药组对比差异无统计学意义（P>0.05）。KDR rs1870377基因主要包括AA、CC、CA三种基因型,两组都与Hardy-Weinberg平衡定律相符合,研究对象具有群体代表性。耐药组的KDR rs1870377基因CC基因型高于非耐药组（P<0.05）,耐药组的等位基因C频率高于非耐药组（P<0.05）。Spearsman分析显示KDR rs1870377基因CC基因型、等位基因C与氯吡格雷耐药存在相关性（P<0.05）。多元Logistic回归分析显示KDR rs1870377基因CC基因型、等位基因C为导致PCI术后氯吡格雷耐药的重要因素（P<0.05）。结论：冠心病患者PCI术后氯吡格雷比较常见,也伴随有KDR rs1870377基因多态性,KDR rs1870377基因CC基因型、等位基因C为导致PCI术后氯吡格雷耐药的重要因素。     

癫痫患儿SCN1A、MDR1 G2677TA、ABCB1 C3435T基因多态性与左乙拉西坦治疗效果的关系及疗效的影响因素分析

摘要 目的：探讨癫痫患儿SCN1A、MDR1 G2677TA、ABCB1 C3435T基因多态性与左乙拉西坦（LEV）治疗效果的关系及疗效的影响因素。方法：选择2019年6月至2021年7月在本院接受LEV治疗的癫痫患儿226例为研究对象,分析所有患儿基因型和等位基因分布情况;治疗3个月后根据治疗效果分为有效组和无效组,分析两组患儿SCN1A、MDR1 G2677TA、ABCB1 C3435T基因型及等位基因频率分布;采用单因素及多因素Logistic回归分析法分析影响临床疗效的因素。结果：癫痫患儿SCN1A rs4667869、SCN1A rs10497275、MDR1 G2677TA、ABCB1 C3435T基因型及等位基因分布频率有统计学差异（P＜0.05）。有效组SCN1A rs4667869的基因型GG、GC及等位基因G分布频率高于无效组（P＜0.05）,基因型CC及等位基因C分布频率低于无效组（P＜0.05）;有效组SCN1A rs10497275的基因型GA及等位基因G高于无效组（P＜0.05）,基因型AA及等位基因A分布频率低于无效组（P＜0.05）;有效组MDR1 G2677TA的基因型GT、TT及等位基因T高于无效组（P＜0.05）,基因型GG、AA及等位基因G分布频率低于无效组（P＜0.05）;有效组ABCB1 C3435T的基因型CC、CT及等位基因C分布频率高于无效组（P＜0.05）,基因型TT及等位基因T分布频率低于无效组（P＜0.05）。单因素分析显示,月发作频率和出生窒息史与LEV治疗癫痫患儿疗效有关。多因素Logistic回归分析显示,SCN1A rs4667869、SCN1A rs10497275、MDR1 G2677TA和ABCB1 C3435T基因型及等位基因、出生窒息史是LEV治疗癫痫患儿疗效的影响因素。结论：癫痫患儿SCN1A、MDR1 G2677TA和ABCB1 C3435T基因多态性与LEV治疗效果有关,其多种基因型是LEV治疗效果的影响因素。     

MTHFR C677T、A1298C基因多态性与老年单纯收缩期高血压患者Hcy、血脂水平的关系研究

摘要 目的：研究5,10-亚甲基四氢叶酸还原酶（MTHFR）C677T、A1298C基因多态性与老年单纯收缩期高血压（ISH）患者同型半胱氨酸（Hcy）、血脂水平的关系。方法：选取2019年3月至2021年3月期间中南大学湘雅医学院附属海口医院全科医学科收治的212例老年ISH患者作为ISH组,以同期体检无高血压老年人120例为对照组。检测两组MTHFR C677T、A1298C基因多态性。收集两组一般资料及血浆Hcy及血脂检查结果。观察MTHFR C677T、A1298C不同基因型的血浆Hcy、血脂水平差异。采用多因素Logistic回归分析老年ISH发生的影响因素。结果：相比于对照组,ISH组MTHFR C677T位点T等位基因频率较高,C等位基因频率较低;ISH组CC基因型频率较低,CT、TT基因型频率较高（P<0.05）。相比于对照组,ISH组A1298C位点C等位基因频率较高,A等位基因频率较低;ISH组A1298C位点AA基因型频率较低,CC、AC基因型频率较高（P<0.05）。MTHFR基因C677T位点不同基因型血浆Hcy、总胆固醇（TC）水平差异具有显著性（P<0.05）。MTHFR基因A1298C位点不同基因型血浆Hcy、TC水平明显差异具有显著性（P<0.05）。血浆Hcy、MTHFR C677T及A1298C基因多态性是老年ISH发生的影响因素（均P<0.05）。结论：MTHFR C677T、A1298C基因多态性与老年ISH患者血浆TC、Hcy水平有关,血浆Hcy、MTHFR C677T及A1298C基因多态性是老年ISH发生的影响因素。     

出血性卒中与MTHFR C677T基因多态性的相关性研究

摘要 目的：探讨与分析出血性卒中与亚甲基四氢叶酸还原酶（MTHFR）C677T基因多态性的相关性。方法：2020年2月到2021年4月选择在本地区诊治的H型高血压患者220例作为研究对象,检测所有患者的MTHFR C677T基因多态性状况,检测血清同型半胱氨酸、叶酸、维生素B12含量。随访判定患者的出血性卒中状况并进行相关性分析。结果：随访调查1年,220例患者中出现出血性卒中20例（出血性卒中组）,占比9.1 %。出血性卒中组的血清同型半胱氨酸含量明显高于非出血性卒中组,血清维生素B12、叶酸明显低于非出血性卒中组（P<0.05）。两组的MTHFR C677T基因型分布均符合Hardy-Weinberg遗传平衡,出血性卒中组的TT基因型、等位基因T占比分别为70.0 %、80.0 %,都显著高于非出血性卒中组的24.0 %、35.0 %（P<0.05）。Spearman相关系数分析显示H型高血压患者的血清同型半胱氨酸、叶酸、维生素B12含量、TT基因型、等位基因T都与出血性卒中存在相关性（P<0.05）。多元回归分析显示血清同型半胱氨酸、叶酸、维生素B12含量、TT基因型、等位基因T都为导致H型高血压患者出血性卒中发生的重要因素（P<0.05）。结论：H型高血压在随访过程中容易发生出血性卒中,也伴随有血清同型半胱氨酸、维生素B12、叶酸含量异常,MTHFR C677T的T基因型、等位基因T与出血性卒中存在相关性,也是导致出血性卒中发生的重要危险因素。     

妊娠相关蛋白A、过氧化物酶体增殖物激活受体-γ基因多态性与子痫前期的易感性和妊娠结局的关系研究

摘要 目的：探讨妊娠相关蛋白A（PAPP-A）、过氧化物酶体增殖物激活受体-γ（PPAR-γ）基因多态性与子痫前期（PE）的易感性和妊娠结局的关系。方法：选取2018年7月至2021年6月石家庄妇幼保健院收治的125例PE患者（PE组）及125例本院同期产检健康孕妇（对照组），统计并对比两组临床结局，根据PE患者妊娠结局的不同分为不良组和良好组。检测所有研究对象外周血脱氧核糖核酸（DNA）样本中PAPP-A、PPAR-γ基因单核苷酸多态性（SNP）位点，并对比PE组与对照组、良好组与不良组SNP位点基因型及等位基因频率，并分析其与PE及PE不良妊娠结局发生的关系。结果：PE组与对照组PPAR-γ基因rs10865710、rs4684847位点及PAPP-A基因rs7020782位点的基因型分布比较有统计学差异，且PE组PPAR-γ基因rs10865710等位基因G、rs4684847等位基因T及PAPP-A基因rs7020782等位基因C频率高于对照组（P＜0.05）；二分类Logistic回归分析显示，PPAR-γ基因rs10865710位点GG基因型（OR=2.641）及G等位基因（OR=1.641）、PPAR-γ基因rs4684847位点CT基因型（OR=3.084）及T等位基因（OR=2.985）、PAPP-A基因rs7020782位点CC基因型（OR=2.104）及C等位基因（OR=1.875）均是PE发生的危险因素（P＜0.05）。PE组总不良妊娠结局发生率为33.60%，显著高于对照组的5.60%（P＜0.05）。不良组与良好组PPAR-γ基因rs10865710、rs4684847位点及PAPP-A基因rs7020782位点的基因型分布比较有统计学差异，且不良组PPAR-γ基因rs10865710等位基因G、rs4684847等位基因T、PAPP-A基因rs7020782等位基因C频率高于良好组（P＜0.05）；二分类Logistic回归分析显示，PPAR-γ基因rs10865710位点GG基因型（OR=2.446）及G等位基因（OR=1.503）、PPAR-γ基因rs4684847位点CT基因型（OR=2.225）及T等位基因（OR=2.013）、PAPP-A基因rs7020782位点CC基因型（OR=2.005）及C等位基因（OR=1.950）均是不良妊娠结局的危险因素（P＜0.05）。结论：PPAR-γ基因rs10865710、rs4684847位点及PAPP-A基因rs7020782位点可能与PE易感性及PE不良妊娠结局的发生有关，检测两个基因的SNP位点可能有助于评估PE及其不良妊娠结局的发生风险。     

EB病毒感染及XRCC1、IL-10基因多态性与甲状腺癌的关联性分析

摘要 目的：探究Epstein-Barr病毒（EB病毒）感染及X射线交错互补修复因子1（XRCC1）、白介素-10（IL-10）基因多态性与甲状腺癌的关联性。方法：选取2020年1月~2022年12月132例甲状腺癌患者为研究组以及同期132例甲状腺良性腺瘤患者为对照组,采用原位杂交技术检测肿瘤标本EB病毒感染情况,聚合酶链反应-限制性内切酶片段长度多态性法检测XRCC1-399G/A位点、IL-10-592C/A位点基因多态性。结果：研究组EB病毒感染阳性率55.3%,高于对照组的33.3%（P<0.05）。研究组XRCC1-399G/A位点GA、AA基因型及A等位基因频率均高于对照组（P<0.05）;两组IL-10-592C/A各基因型频率比较差异无统计学意义,但研究组A等位基因频率高于对照组（P<0.05）。EB病毒感染阳性者较阴性者甲状腺癌风险增加3.337倍（95%CI：1.272~8.752）,携带XRCC1-399位点（GA+AA）型者较GG型风险增加2.438倍（95%CI：1.223~4.859）,携带IL-10-592位点（CA+AA）型者较CC型未增加甲状腺癌风险。不同病理类型甲状腺癌患者EB病毒感染情况及XRCC1-399位点、IL-10-592位点基因型分布比较差异均无统计学意义。结论：EB病毒感染阳性、XRCC1-399G/A位点突变基因型可能是甲状腺癌发病的易感因素,但二者与甲状腺癌病理类型无明显关系,而IL-10-592C/A基因多态性可能与甲状腺癌无关。     

IL-10基因启动子-627位点多态性与过敏性哮喘

目的:探讨白细胞介素-10(IL-10)启动子-627C/A基因多态性和等位基因频率与过敏性哮喘血清IgE、IL-10浓度以及病情严重程度的相互关系。方法:从哮喘病人DNA文库中选择青岛地区过敏性哮喘病人518例和健康志愿者501例,采用PCR-RFLP方法对IL-10基因启动子-627位点多态性进行观察,比较两组基因型和等位基因的分布频率,同时测定血清中总IgE、IL-10浓度和肺功能检查(FEV1、FVC、FEVl/FVC)。结果:轻度和中-重度哮喘组AA、CA和CC基因型所占比例分别为38.1%、46.0%、15.9%和45.6%、46.2%和8.2%(P=0.0168,X~2=8.232,df=2)A等位基因与哮喘病轻的严重程度有明显相关性(P<0.05)。AA基因型哮喘病人血清的IgE浓度显著升高(P<0.01),但其血清IL-10浓度比CC基因型携带者明显降低(P<0.01)。结论:IL-10基因启动子-627位点多态性与过敏性哮喘的发生有一定的相关性,等位基因A是哮喘患病的风险基因,而等位基因C则是哮喘病的保护基因。     

IL-10基因启动子-627位点多态性与过敏性哮喘

目的：探讨白细胞介素-10（IL-10）启动子-627C／A基因多态性和等位基因频率与过敏性哮喘血清IgE、IL-10浓度以及病情严重程度的相互关系。方法：从哮喘病人DNA文库中选择青岛地区过敏性哮喘病人518例和健康志愿者501例,采用PCR—RFLP方法对IL．10基因启动子．627位点多态性进行观察,比较两组基因型和等位基因的分布频率,同时测定血清中总IgE、IL-10浓度和肺功能检查（FEV1、FVC、FEV1／FVC）。结果：轻度和中一重度哮喘组AA、CA和CC基因型所占比例分别为38．1％、46．0％、15．9％和45．6％、46．2％和8．2％（P=0．0168,X2=8．232,df=2）。A等位基因与哮喘病轻的严重程度有明显相关性（P〈0．05）。AA基因型哮喘病人血清的IgE浓度显著升高（P〈0．01）,但其血清IL-10浓度比CC基因型携带者明显降低（P〈0．01）。结论：IL-10基因启动子-627位点多态性与过敏性哮喘的发生有一定的相关性,等位基因A是哮喘患病的风险基因,而等位基因C则是哮喘病的保护基因。     

白介素-18 基因多态性与黑龙江省汉族人群心房颤动相关性

目的:探讨白介素-18(IL-18)基因启动子区-137G/C(rs187238)位点和-607A/C(rs1946518)位点的等位基因、基因型、单体型与黑龙江省汉族人群心房颤动发病风险的相关性。方法:选取56例心房颤动患者和26例对照者,心房颤动患者按持续时间分为阵发房颤组和持续房颤组。采用聚合酶链式反应(PCR)和直接测序法(DS)对所选2个SNPs位点的基因型进行检测。结果:1黑龙江省地区汉族人群中IL-18基因启动子区-607A/C位点存在AA、AC、GG三种基因型,-137C/G位点存在CC、GC、GG三种基因型。2各心房颤动患者组与对照组间IL-18基因启动子区-137G/C(rs187238)位点和-607A/C(rs1946518)位点的基因型和等位基因频率比较均无显著性差异(P0.05)。3IL-18基因启动子区-137G/C(rs187238)位点和-607 A/C(rs1946518)位点有CA、CC、GA、GC四种单倍体型,各组单倍体型分布频率比较均无统计学差异(P0.05。4IL-18基因启动子区-137G/C(rs187238)位点和-607 A/C(rs1946518)位点的基因型和等位基因频率与AF患者的发病年龄均无统计学相关性(P0.05)。结论:IL-18基因启动子区-607A/C(rs1946518)位点和-137G/C(rs187238)位点不是黑龙江省汉族人群心房颤动的易感基因,可能与其心房颤动的发病风险无关。     

A promoter SNP rs4073T>A in the common allele of the interleukin 8 gene is associated with the development of idiopathic pulmonary fibrosis via the IL-8 protein enhancing mode

Background

Interleukin-8 (IL-8) is a potent chemo-attractant cytokine responsible for neutrophil infiltration in lungs with idiopathic pulmonary fibrosis (IPF). The IL-8 protein and mRNA expression are increased in the lung with IPF. We evaluated the effect of single nucleotide polymorphisms (SNPs) of the IL-8 gene on the risk of IPF.

Methods

One promoter (rs4073T>A) and two intronic SNPs (rs2227307T>G and rs2227306C>T) of the IL-8 genes were genotyped in 237 subjects with IPF and 456 normal controls. Logistic regression analysis was applied to evaluate the association of these SNPs with IPF. IL-8 in BAL fluids was measured using a quantitative sandwich enzyme immunoassay, and promoter activity was assessed using the luciferase reporter assay.

Results

The minor allele frequencies of rs4073T>A and rs2227307T>G were significantly lower in the 162 subjects with surgical biopsy-proven IPF and 75 subjects with clinical IPF compared with normal controls in the recessive model (OR = 0.46 and 0.48, p = 0.006 and 0.007, respectively). The IL-8 protein concentration in BAL fluids significantly increased in 24 subjects with IPF compared with 14 controls (p = 0.009). Nine IPF subjects homozygous for the rs4073 T>A common allele exhibited higher levels of the IL-8 protein compared with six subjects homozygous for the minor allele (p = 0.024). The luciferase activity of the rs4073T>A common allele was significantly higher than that of the rs4073T>A minor allele (p = 0.002).

Conclusion

The common allele of a promoter SNP, rs4073T>A, may increase susceptibility to the development of IPF via up-regulation of IL-8.     

Associations of galectin-3 expression and LGALS-3 (rs4652) gene variant with coronary artery disease risk in diabetics

BackgroundGalectin-3 protein encoded by lectin galactoside-binding soluble-3 (LGALS-3) gene is an important genetic factor in type 2 diabetes mellitus (T2DM) and its cardiovascular obstacles in various populations. We aimed to elicit the pro-inflammatory effect of galectin-3 as determined by interleukin-6 (IL-6) serum levels and to explore the relationship between galectin-3 (LGALS-3 rs4652) gene variant and its expression levels with coronary artery disease (CAD) risk among T2DM Egyptian patients.Methods112 lean subjects were compared to 100 T2DM without CAD and 84 T2DM with CAD. A tetra-primer amplification refractory mutation system polymerase chain reaction was used to test LGALS-3 (rs4652), and galectin3 expression was tested with a quantitative real-time polymerase chain reaction. Serum IL-6 was measured using an enzyme-linked immunosorbent assay.ResultsWe found that the prevalence of LGALS-3 (rs4652) AC genotype and galectin-3 gene expression levels in T2DM with CAD were significantly higher than the additional 2 groups and were correlated positively to IL-6 circulating levels. Also, the C allele carriers (AC+CC) had significantly higher relative Galectin-3 expression levels compared to the A allele carriers (AA).ConclusionsWe concluded that galectin-3 expression levels and LGALS-3 (rs4652) AC genotype were coronary artery disease risk factors in people with type two diabetes among an Egyptian sample.     

Association study involving polymorphisms in IL-6, IL-1RA,and CTLA4 genes and rheumatic heart disease in New Zealand population of Māori and Pacific ancestry

IntroductionRheumatic fever (RF) incidence among New Zealand (NZ) individuals of Polynesian (Māori and Pacific) ancestry remains among the highest in the world. Polymorphisms in the IL-6, IL1RN, and CTLA4 genes have been associated with RF, and their products are modulated by new medications. Confirmation of these previous associations could help guide clinical approaches. We aimed to test IL-6, IL-1RA (IL1RN), and CTLA4 functional SNPs in 204 rheumatic heart disease (RHD) patients and 116 controls of Māori and Pacific ancestry.Material and methodSelf-reported ancestry of the eight great-grandparents defined ancestry of participants. Severity of carditis was classified according to the 2012 World Heart Federation guideline for the echocardiographic diagnosis of RHD. The IL-6 promoter rs1800797, IL1RN rs447713 and CTLA4 rs3087243 SNPs were genotyped by Taqman. Correlations were assessed by logistic regression analysis adjusting for gender and ancestry.ResultsThe IL-6 rs1800797 variant was significantly associated with RHD with carriers of the GG genotype 6.09 (CI 1.23; 30.23) times more likely to develop RHD than the carriers of the AA genotype (P = 0.027). No significant associations with RHD were found for the IL1RN rs447713 and CTLA4 rs3087243 SNPs. Patients carrying the G allele (GG plus AG genotype) for the IL1RN rs447713 SNP had 2.36 times (CI 1.00; 5.56) more severe carditis than those without this allele (the AA genotype) (P = 0.049).ConclusionThe IL-6 promoter rs1800797 (−597G/A) SNP may influence susceptibility to RHD of people of Māori and Pacific ancestry living in NZ. The IL1RN rs447713 SNP may influence the severity of carditis in this population.     

LKB1基因多态性与2型糖尿病相关性研究

目的:探讨陕西汉族人群中LKB1基因位点rs741765(380CT)及rs6510599(459GA)单核苷酸多态性(SNPs)与2型糖尿病遗传易感性及相关临床代谢指标的关系。方法:采用等位基因特异性引物PCR(SASP-PCR)对2型糖尿病患者130例及健康对照组100例进行LKB1基因内含子6 rs741765(380CT)及内含子1 rs6510599(459GA)两个位点进行基因多态性筛查,并测序鉴定,分析其基因多态性位点与2型糖尿病临床代谢指标关系。结果:rs741765(380CT)基因突变情况:2型糖尿病患者TT基因型频率显著高于健康对照组(P=0.023);TT基因2型糖尿病组中糖化血红蛋白水平及低密度脂蛋白胆固醇水平在型中明显升高(P=0.030;P=0.002);健康对照组中,空腹血糖水平在TT基因型中明显升高(P=0.011)。rs6510599(459GA)基因突变情况:AA基因型频率在2型糖尿病组及健康对照组间无显著性差异(P0.05);该基因位点与临床指标亦无相关性(P0.05)。结论:陕西汉族人群中LKB1基因内含子6 rs741765(380CT)及内含子1 rs6510599(459GA)存在基因多态性。LKB1基因内含子6 rs741765(380CT)基因多态性与2型糖尿病的发病有相关性。LKB1基因内含子1 rs6510599(459GA)基因多态性与2型糖尿病的发病无相关性。     

白血病融合基因EVI1的多态性与白血病发生风险的相关性

目的:探讨白血病融合基因亲嗜性病毒整合位点1(ecotropic viral integration site-1,EVI1)的多态性与白血病发生风险的相关性。方法:选取本院2017年2月～2019年2月收治的骨刺患儿90例作为研究组,同期选择健康人群83例作为对照组。清晨空腹抽取两组入选者的外周静脉血2 mL,采用PCR方法检测两组入选者EVI1的多态性情况,调查一般资料并进行相关性分析。结果:EVI1 rs17561基因共有CC、CA、AA三种基因型,两组入选者的EVI1 rs17561基因分布均符合Hardy-Weinberg平衡定律,研究对象具有群体代表性。两组入选者EVI1 rs17561基因型分布差异具有统计学意义(P0.05),研究组的EVI1 rs17561基因CC基因型显著高于对照组(90.0%vs. 75.9%, P0.05),研究组的等位基因C频率(显著高于对照组(96.7%vs. 80.7%, P0.05)。在90例骨刺患儿中,6例患儿确诊为白血病,检出率为6.7%,均为CC基因型。研究组患儿EVI1 rs17561基因的CC基因型与血小板计数、危险度分层、诊断分型显著相关(P0.05)。多元Logistic回归分析显示血小板计数、危险度分层、诊断分型为影响EVI1rs17561CC基因型的主要因素(P0.05)。结论:白血病患儿融合基因EVI1多态性比较常见,多表现为rs17561CC等位基因,此等位基因可能与白血病患者的血小板计数、危险度分层、诊断分型显著相关,其中血小板计数、危险度分层、诊断分型为影响EVI1rs17561CC基因型的主要因素。     

IL-17A基因单核苷酸位点多态性与胃癌预后的相关性研究

探讨白介素17A基因多态性与胃癌预后的关系。129例研究对象纳入生存分析,分成死亡和存活两组,用基因测序的方法检测血液样本IL-17A基因SNP位点rs3748067、rs17880588基因型分布。rs3748067位点有3种基因型T/T、C/T、C/C,rs17880588位点有2种基因型A/G、G/G。比较存活组和死亡组之间的基因型分布频率和单点等位基因分布频率,发现rs3748067的基因型C/T在死亡组的分布频率较存活组高,基因型T/T和C/C在死亡组的分布频率低于存活组,两组之间分布频率差异有统计学意义(P0.05)。杂合型C/T基因型在存活组分布低于死亡组(OR=2.051,CI=0.016~1.420),该位点基因型杂合可能为胃癌预后的一种危险因素。rs17880588的两种基因型A/G、G/G在存活组和死亡组的分布频率差异无统计学意义(P0.05)。结论:IL-17A基因rs3748067位点SNP与胃癌预后可能有相关性。     

Association of rs11801299 and rs1380576 polymorphisms at MDM4 with risk,clinicopathological features and prognosis in patients with retinoblastoma

Backgroundrs11801299 and rs1380576, two novel polymorphisms in MDM4 gene, have been investigated in several different cancer types. However, the role of these two polymorphisms in retinoblastoma (RB) remains unclear.MethodsA total of 126 patients with primary RB and 148 age-/gender-matched controls were included in this retrospective study. The frequency of rs11801299 and rs1380576 were determined between RB patients and controls. The association of these two polymorphisms with clinicopathological characteristics, prognosis were further evaluated.ResultsAA genotype at rs11801299 was significantly associated with an increased risk of developing RB (OR = 2.06, 95%CI 1.09–3.90). The possibility of developing RB was also significantly increased in individuals with A allele at rs11801299 (OR = 1.49, 95%CI 1.06–2.08). RB patients carrying AA genotype and A allele at rs11801299 were more likely to have tumor invasion and poor differentiation. As for rs1380576, a significantly lower risk of developing RB was observed in patients with G allele (CG + GG) compared with wild-type CC genotype (OR = 0.59, 95%CI 0.36–3.95). RB patients with GG genotype or G allele had a lower risk of developing highly aggressive cancer. Kaplan-Meier curves and log-rank results revealed that RB patients carrying AA genotype or A allele (AA + GA) at rs11801299 had significantly poorer prognosis. Multivariate COX analysis showed that the rs11801299 G allele was associated with decreased survival but was not an independent prognostic factor.Conclusionrs11801299 was significantly associated with RB risk, pathological differentiation, tumor aggressiveness and poor prognosis.     

新疆地区维吾尔族和汉族人群CaSR基因多态性与草酸钙肾结石关系的研究

目的:探讨新疆地区维吾尔族和汉族草酸钙结石与钙敏感受体(calcium sensitive receptor,Ca SR)基因多态性之间的关系。方法:选择398例临床确诊泌尿系草酸钙结石患者(200例维吾尔族,198例汉族)和399例正常对照者(200例维吾尔族,199例汉族),应用Sna Pshot方法对Ca SR基因两位点(rs1042636,rs1801726)的基因型及等位基因频率进行检测,并分析其与草酸钙结石发病的相关性以及对血钙、24 h尿钙水平的影响。结果:各组2个位点的基因型分布均符合Hardy-Weinberg平衡。汉族结石组与汉族对照组及维吾尔族结石族与维吾尔族对照组rs1042636、rs1801726位点基因型分布及基因频率差异均无统计学意义(P0.05)。维吾尔和汉族rs1042636基因型及等位基因频率比较差异有统计学意义(P0.05),且维吾尔族人群携带rs1042636等位基因A的风险高于汉族人群(病例组中OR值=2.145,%95CI=[1.602~2.866],P0.01;对照组中OR值=1.773,%95CI=[1.332~2.359],P0.01),其中维/汉病例组中等位基因频率分别为A=278(69.5%)/204(51.5%),G=122(30.5%)/192(48.5%);维/汉对照组中等位基因频率分别为A=264(66.0%)/208(52.3%),G=136(34.0%)/190(47.7%)。而病例组和对照组rs1801726基因型频率差异无统计学意义(P0.05);汉族病例组、对照组发现GG+AG基因型较AA基因型有较高的尿钙水平(病例组:P=0.007和对照组:P=0.006),维吾尔族人群该位点与两项指标无相关性。结论:Ca SR基因2个基因位点rs1042636、rs1801726可能不是新疆地区维吾尔族和汉族草酸钙结石发病的危险因子,两族rs1042636基因多态性分布存在差异,rs1042636位点基因多态性能影响汉族人群尿钙排泄,可能汉族调节钙排泄的遗传因素之一。