亚甲基四氢叶酸还原酶和甲硫氨酸合成酶还原酶基因多态性研究

目的:探讨编码叶酸代谢通路中关键酶的基因多态性与新生儿神经管缺陷(NTDs)间的关联性,及在部分中国女性人群中的分布特征,从而指导孕期叶酸补充和风险监测。方法:采用循证医学方法对5,10-亚甲基四氢叶酸还原酶(MTHFR)C677T、A1298C和甲硫氨酸合成酶还原酶(MTRR)A66G与NTDs的关联性进行Meta分析,并在中国的北方(山东、河南)和南方(四川、海南)地区进行了1 017例样本的分子流行病学研究。结果:MTHFR C677T位点TT基因型相对于CC型的比值比为3.35(95%CI:1.39～8.13),TT型在北方和南方女性人群中的频率分别为37.35%和10.44%,差异有统计学意义;MTHFR A1298C和MTRR A66G虽然从生物学机制上与NTDs的发生密切相关,但尚需进行大规模的人群研究。结论:基于MTHFR和MTRR多态性检测的孕期叶酸补充指导和监测将是进一步降低新生儿出生缺陷的重要方法。     

金港镇汉族女性亚甲基四氢叶酸还原酶与甲硫氨酸合成酶还原酶基因多态性研究

目的:探讨张家港市金港镇汉族女性亚甲基四氢叶酸还原酶(MTHFR)、甲硫氨酸合成酶还原酶(MTRR)基因多态性的频率特征,以指导孕妇增补叶酸和出生缺陷一级预防。方法:2013年11月~2014年6月对在金港镇人民医院进行孕前与孕期检查的348名汉族女性进行叶酸代谢障碍遗传检测,采用SPSS19.0软件进行统计学分析、应用HaploView4.2软件进行SNPs的Hardy-Weinberg平衡、LD水平和单倍型结构分析MTHFR 677T、al298C和MTRR A66G的基因分型。统计分析基因多态性的频率特征,并与已报道的其他地区汉族女性的数据进行比较。结果:384名汉族女性的MTHFR 677基因型CC、CT、TT的频率分别是28.0%、55.3%、16.7%。TT纯合突变型频率低于烟台(32.2%)、镇江(21.8%);高于松滋(15.4%)、德阳(13.8%)、昆明(14.1%)、惠州(10.9%),差异有统计学意义(P均0.05)。MTHFR 1298基因型AA、AC、CC的频率分别为66.6%、30.5%和2.9%,CC纯合突变基因型频率高于烟台(1.8%)、松滋(2.6%)、昆明(2.7%);低于镇江(3.5%)、德阳(6.3%)、惠州(7.2%),均有统计学意义(P均0.05)。MTRR 66基因型AA、AG、GG的频率分别为62.5%、34.0%、3.5%,GG纯合突变基因型与烟台(7.2%)、松滋(6.4%)、德阳(8.2%),差异有统计学意义(P0.01)。结论:张家港市金港镇汉族女性MTHFR和MTRR基因多态性的频率普遍高于南方地区,具有地域特异性,需要加强叶酸补服剂量及延长服用时间从而达到一级预防的目的。     

湖北省汉族女性亚甲基四氢叶酸还原酶和甲硫氨酸合成酶还原酶基因多态性分布研究

目的:分析湖北省汉族女性亚甲基四氢叶酸还原酶(methylenetetrahydrofolate reductase,MTHFR)C677T、A1298C及甲硫氨酸合成酶还原酶(methionine synthase reductase,MTRR)A66G基因多态性的分布特征。方法:采用横断面调查研究方法,以湖北省2 899例汉族女性为对象,采集口腔黏膜上皮细胞提取基因组DNA,采用Taqman-MGB技术进行MTHFR和MTRR基因多态性检测,统计分析基因多态性的分布特征并与已报道的其他地区的数据进行比较。结果:湖北省汉族女性的MTHFR 677TT纯合突变基因型频率为16.0%,高于海南省,低于山东省和河南省(P<0.01),与四川省的差异无统计学意义(P>0.05)。MTHFR 1298CC纯合突变基因型频率为4.5%,高于河南省,低于四川省和海南省(P<0.05),与山东省的差异无统计学意义(P>0.05)。MTRR 66GG纯合突变基因型频率为6.2%,低于海南省(P<0.01),与山东、河南和四川省的差异均无统计学意义(P>0.05)。结论:湖北省汉族女性有不同于其他地区的MTHFR和MTRR基因多态性分布特征。     

亚甲基四氢叶酸还原酶基因多态和叶酸摄取与乳腺癌的发病风险

目的 研究亚甲基四氖叶酸还原酶(5,10-methylenetetrahydrofolate reductase,MTHFR)基因C677T、A1298C多态、饮食叶酸摄取与女性乳腺癌发病风险的关系.方法 采用病例-对照研究,收集江苏省乳腺癌患者669例,选取682名健康人作为埘照,用包括83个饮食项目的 定量问卷表调查研究对象的饮食状况.采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术检测624例患者和624名对照者的MTHFR C677T和A1298C基因型,用非条件logistic回归进行分析,计算比值比(OR).结果 病例组的MTHFR C677T C/C,C/T和T/T基因型分别为32.37%(202/624)、48.88%(305/624)和18.75%(117/624),对照组分别为37.66%(235/624)、48.24%(301/624)和14.10%(88/624),两组的基因型分布差异有统计学意义(X2=6.616,P=0.037).T/T基因型者的乳腺癌发病风险显著升高[调整OR值为1.62(95%CI值:1.14～2.30)].病例组的MTHFRA1298C A/A、A/C和C/C基因型分别为71.47%(446/624)、27.08%(169/624)和1.44%(9/624),对照组分别为68.11%(425/624)、30.13%(188/624)和1.76%(11/624),两组间的基因型分布差异无统计学意义(X2=1.716,P=0.424).病例组的饮食叶酸摄取量[(263.00±137.38)μg/d]显著低于对照组[(285.12±149.61)μd](t=-2.830,P=0.005).与最低三分位组(≤199.08μg/d)相比,叶酸最高摄取量组(≥315.11μg/d)的OR值为0.70(95%CI值:0.53～0.92).在MTHFR A1298CA/A基因型者中,叶酸中间摄取量组(199.09～315.10μg/d)与最高摄取量组的OR值分别为0.89(95%C/值:0.62～1.27)、1.69(95%C/值:1.20～2.36),其线性趋势检验X2=11.372,P=0.001.结论 本研究结果 显示MTHFR遗传多态、饮食叶酸摄取与乳腺癌的发病风险相关.     

烟台市牟平区汉族女性亚甲基四氢叶酸还原酶和甲硫氨酸合成酶还原酶基因多态性分布研究

目的分析山东省烟台市牟平区女性亚甲基四氢叶酸还原酶(MTHFR)C677T、A1298C及甲硫氨酸合成酶还原酶(MTRR)A66G基因多态性的分布特征。方法以烟台市牟平区529例汉族女性为研究对象,采集口腔黏膜上皮细胞,提取基因组DNA,通过荧光PCR方法进行MTHFR和MTRR基因多态性检测。统计分析本地区基因多态性的分布特征,并与已报道地区数据进行比较。结果烟台市牟平区汉族女性的MTHFR 677TT纯合突变基因型频率为33.1%,与山东省淄博市、江苏省镇江市、湖北省武汉市、四川省德阳市、云南省昆明市、广东省广州市和海南省琼海市的分布差异有统计学意义(P<0.05)。MTHFR 1298CC纯合突变基因型频率为2.7%,与江苏省镇江市、湖北省武汉市、四川省德阳市、云南省昆明市、广东省广州市和海南省琼海市的分布差异存在统计学意义(P<0.05)。MTRR 66GG纯合突变基因型频率为8.2%,仅与淄博市和琼海市存在统计学差异(P<0.05)。结论烟台市牟平区汉族女性MTHFR和MTRR基因多态性分布情况不同于其他地区,具有地域特异性。     

保山市汉族女性亚甲基四氢叶酸还原酶和甲硫氨酸合成酶还原酶基因多态性的分布特征

目的研究云南省保山市隆阳地区汉族女性亚甲基四氢叶酸还原酶(MTHFR)和甲硫氨酸合成酶还原酶(MTRR)基因多态性的分布特征。方法选取2016年1月-2017年2月在云南省保山市妇幼保健院进行孕前检查及产检的汉族妇女1 306例为研究对象。采集口腔黏膜上皮细胞,获得基因组DNA,运用Taqman-MGB技术,检测MTHFR和MTRR基因多态性。分析该地区汉族女性基因多态性的分布特征,并与已有报道进行比较,为进一步降低出生缺陷及孕产妇疾病提供理论依据。结果保山市汉族女性MTHFR C677T位点的基因型频率和等位基因型频率与尚志、乌鲁木齐、辽源、银川、烟台、郑州、镇江、九江、湘潭、南宁、琼海地区比较,差异有统计学意义(P0.05)。MTHFR A1298C位点的基因型频率和等位基因型频率与烟台、武汉、九江、湘潭、南宁、琼海地区比较,差异有统计学意义(P0.05)。MTRR A66G位点的基因型频率与辽源、烟台、郑州、镇江、武汉、眉山地区比较,差异有统计学意义(P0.05);MTRR A66G位点的等位基因频率与辽源、银川、烟台、郑州、镇江、武汉、九江、湘潭、南宁地区比较,差异有统计学意义(P0.05)。结论保山市汉族女性MTHFR和MTRR基因频率分布具有当地特异性,可有针对性地制定个性化孕期叶酸增补方案。     

亚甲基四氢叶酸还原酶基因多态和叶酸摄取与乳腺癌的发病风险

Objective To evaluate the relationship between dietary folate intake and genetic polymorphisms of 5, 10-methylenetetrahydrofolate reductase (MTHFR) with reference to breast cancer risk. Methods A case-control study was conducted with 669 cases and 682 population-based controls in Jiangsu province of China. MTHFR C677T and AI298C genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods. Dietary folate intake was assessed by using an 83-item food frequency questionnaire. Odds ratios (OR) were estimated with an unconditional logistic model. Results The frequencies of MTHFR C677T C/C, C/T and T/T genotypes were 32. 37% (202/624), 48. 88% (3051624) and 18. 75% (117/624) in cases and 37. 66% (235/624), 48.24% (301/624) and 14. 10% (88/624) in controls,respectively. The difference in distribution was significant (X2=6. 616, P=0. 037), the T/T genotype being associated with an elevated OR for breast cancer (1.62, 95% CI: 1.14 -2. 30). The frequencies of MTHFR A1298C A/A,A/C and C/C were 71.47% (446/624), 27.08% (169/624) and 1.44% (9/624) in cases and 68. 11% (425/624) ,30. 13% (188/624) and 1.76% (11/624) in controls, with no significant differences found (X2=1.716, P=0. 424). Folate intake of cases [(263.00±137. 38)μg/d]was significantly lower than that of controls [(285. 12±149. 61)μg/d](t=-2. 830,P=0. 005). Compared with the lowest tertile (≤199. 08μg/d) of folate intake,the adjusted OR for breast cancer in the top tertile (≥315.μg/d) was 0. 70 (95% CI:0. 53 -0. 92). Among individuals with the MTHFR A1298C A/A genotype,adjusted OR for breast cancer were 0. 89 (95% CI: 0. 62 -1.27)and 1.69 (95% CI: 1.20 -2. 36) for the second to the third tertite of folato intake compared with thehighest folate intake group (Xtrend2=11. 372, P=0. 001). Conclusion The findings of the present study suggest that MTHFR genetic polymorphisms, and dietary intake of folate may modify susceptibility to breast cancer.     

亚甲基四氢叶酸还原酶基因多态和叶酸摄取与乳腺癌的发病风险

Objective To evaluate the relationship between dietary folate intake and genetic polymorphisms of 5, 10-methylenetetrahydrofolate reductase (MTHFR) with reference to breast cancer risk. Methods A case-control study was conducted with 669 cases and 682 population-based controls in Jiangsu province of China. MTHFR C677T and AI298C genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods. Dietary folate intake was assessed by using an 83-item food frequency questionnaire. Odds ratios (OR) were estimated with an unconditional logistic model. Results The frequencies of MTHFR C677T C/C, C/T and T/T genotypes were 32. 37% (202/624), 48. 88% (3051624) and 18. 75% (117/624) in cases and 37. 66% (235/624), 48.24% (301/624) and 14. 10% (88/624) in controls,respectively. The difference in distribution was significant (X2=6. 616, P=0. 037), the T/T genotype being associated with an elevated OR for breast cancer (1.62, 95% CI: 1.14 -2. 30). The frequencies of MTHFR A1298C A/A,A/C and C/C were 71.47% (446/624), 27.08% (169/624) and 1.44% (9/624) in cases and 68. 11% (425/624) ,30. 13% (188/624) and 1.76% (11/624) in controls, with no significant differences found (X2=1.716, P=0. 424). Folate intake of cases [(263.00±137. 38)μg/d]was significantly lower than that of controls [(285. 12±149. 61)μg/d](t=-2. 830,P=0. 005). Compared with the lowest tertile (≤199. 08μg/d) of folate intake,the adjusted OR for breast cancer in the top tertile (≥315.μg/d) was 0. 70 (95% CI:0. 53 -0. 92). Among individuals with the MTHFR A1298C A/A genotype,adjusted OR for breast cancer were 0. 89 (95% CI: 0. 62 -1.27)and 1.69 (95% CI: 1.20 -2. 36) for the second to the third tertite of folato intake compared with thehighest folate intake group (Xtrend2=11. 372, P=0. 001). Conclusion The findings of the present study suggest that MTHFR genetic polymorphisms, and dietary intake of folate may modify susceptibility to breast cancer.     

亚甲基四氢叶酸还原酶基因多态和叶酸摄取与乳腺癌的发病风险

Objective To evaluate the relationship between dietary folate intake and genetic polymorphisms of 5, 10-methylenetetrahydrofolate reductase (MTHFR) with reference to breast cancer risk. Methods A case-control study was conducted with 669 cases and 682 population-based controls in Jiangsu province of China. MTHFR C677T and AI298C genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods. Dietary folate intake was assessed by using an 83-item food frequency questionnaire. Odds ratios (OR) were estimated with an unconditional logistic model. Results The frequencies of MTHFR C677T C/C, C/T and T/T genotypes were 32. 37% (202/624), 48. 88% (3051624) and 18. 75% (117/624) in cases and 37. 66% (235/624), 48.24% (301/624) and 14. 10% (88/624) in controls,respectively. The difference in distribution was significant (X2=6. 616, P=0. 037), the T/T genotype being associated with an elevated OR for breast cancer (1.62, 95% CI: 1.14 -2. 30). The frequencies of MTHFR A1298C A/A,A/C and C/C were 71.47% (446/624), 27.08% (169/624) and 1.44% (9/624) in cases and 68. 11% (425/624) ,30. 13% (188/624) and 1.76% (11/624) in controls, with no significant differences found (X2=1.716, P=0. 424). Folate intake of cases [(263.00±137. 38)μg/d]was significantly lower than that of controls [(285. 12±149. 61)μg/d](t=-2. 830,P=0. 005). Compared with the lowest tertile (≤199. 08μg/d) of folate intake,the adjusted OR for breast cancer in the top tertile (≥315.μg/d) was 0. 70 (95% CI:0. 53 -0. 92). Among individuals with the MTHFR A1298C A/A genotype,adjusted OR for breast cancer were 0. 89 (95% CI: 0. 62 -1.27)and 1.69 (95% CI: 1.20 -2. 36) for the second to the third tertite of folato intake compared with thehighest folate intake group (Xtrend2=11. 372, P=0. 001). Conclusion The findings of the present study suggest that MTHFR genetic polymorphisms, and dietary intake of folate may modify susceptibility to breast cancer.     

亚甲基四氢叶酸还原酶基因多态和叶酸摄取与乳腺癌的发病风险

Objective To evaluate the relationship between dietary folate intake and genetic polymorphisms of 5, 10-methylenetetrahydrofolate reductase (MTHFR) with reference to breast cancer risk. Methods A case-control study was conducted with 669 cases and 682 population-based controls in Jiangsu province of China. MTHFR C677T and AI298C genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods. Dietary folate intake was assessed by using an 83-item food frequency questionnaire. Odds ratios (OR) were estimated with an unconditional logistic model. Results The frequencies of MTHFR C677T C/C, C/T and T/T genotypes were 32. 37% (202/624), 48. 88% (3051624) and 18. 75% (117/624) in cases and 37. 66% (235/624), 48.24% (301/624) and 14. 10% (88/624) in controls,respectively. The difference in distribution was significant (X2=6. 616, P=0. 037), the T/T genotype being associated with an elevated OR for breast cancer (1.62, 95% CI: 1.14 -2. 30). The frequencies of MTHFR A1298C A/A,A/C and C/C were 71.47% (446/624), 27.08% (169/624) and 1.44% (9/624) in cases and 68. 11% (425/624) ,30. 13% (188/624) and 1.76% (11/624) in controls, with no significant differences found (X2=1.716, P=0. 424). Folate intake of cases [(263.00±137. 38)μg/d]was significantly lower than that of controls [(285. 12±149. 61)μg/d](t=-2. 830,P=0. 005). Compared with the lowest tertile (≤199. 08μg/d) of folate intake,the adjusted OR for breast cancer in the top tertile (≥315.μg/d) was 0. 70 (95% CI:0. 53 -0. 92). Among individuals with the MTHFR A1298C A/A genotype,adjusted OR for breast cancer were 0. 89 (95% CI: 0. 62 -1.27)and 1.69 (95% CI: 1.20 -2. 36) for the second to the third tertite of folato intake compared with thehighest folate intake group (Xtrend2=11. 372, P=0. 001). Conclusion The findings of the present study suggest that MTHFR genetic polymorphisms, and dietary intake of folate may modify susceptibility to breast cancer.     

湖北松滋市汉族女性 MTHFR 和 MTRR 基因多态性分布

目的分析湖北省松滋地区女性亚甲基四氢叶酸还原酶（methylenetetrahydrofolatereductase,MTHFR）C677T、A1298C及甲硫氨酸合成酶还原酶（methioninesynthasereductase,MTRR）A66G基因多态性的分布特征。方法采用现况研究方法,以松滋市1077例女性为研究对象,提取其口腔黏膜上皮细胞的基因组DNA,通过荧光定量PCR方法检测MTHFR和MTRR基因多态性。统计分析本地区基因多态性的分布特征,并与已报道其他地区进行比较。结果松滋市女性的MTHFR677TT纯合突变基因型频率为15．41％,与四川省德阳市（13．80％）基本一致,差异无统计学意义（P〉0．05）;高于广东省惠州市（10．86％）、海南省琼海市（6．14％）,低于江苏省镇江市（21．84％）、河南省郑州市（34．5％）、山东省临沂市（35．03％）,均有极显著性差异（P〈0．01）。MTHFR1298CC纯合突变基因型的分布百分数为2．60％,与四川省德阳市（6．26％）基本一致,差异均无统计学意义（P〉0．05）;低于海南省琼海市（7．13％）、广东省惠州市（7．24％）,高于山东省临沂市（2．42％）,差异均有统计学意义（P〈0．01）。MTRR66GG纯合突变基因型频率为6．41％,与琼海市比较,差异有统计学意义（P〈0．01）。结论松滋市女性MTHFR和MTRR基因多态性分布具有地域特异性。     

DNA甲基化与男性不育关系的研究进展

在严重的精子缺乏患者中普遍存在异常的表观遗传变化,已经发现亚甲基四氢叶酸还原酶(MTHFR)、PAX8、NTF3、SFN、HRAS、JHM2DA等基因DNA甲基化改变与不育患者中异常的精液参数有关,这些基因通常是高甲基化的.甲基化和去甲基化的正确调控对个体正常发育至关重要,微小的DNA甲基化异常与许多疾病有关,包括男性不育.阐述男性生殖细胞中正常的DNA甲基化,并对已经发现的异常DNA甲基化和男性不育的关系进行综述,从中探究男性不育的某些遗传学病因.     

亚甲基四氢叶酸还原酶基因多态性与甘肃汉族2型糖尿病肾病的关系

目的 研究亚甲基四氢叶酸还原酶(MTHFR)基因多态性与汉族2型糖尿病肾病的关系。方法 应用聚合酶链反应—限制性片段长度多态性的方法，检测甘肃汉族人2型糖尿病患者91例，其中单纯糖尿病组50例，糖尿病肾病组41例，正常对照组35例，比较各组间MTHFR等位基因和基因型频率。结果 纯合基因型TT和杂合基因型CT在糖尿病肾病组的频率为34．1％和51．2％，高于糖尿病组(16％和48％)和正常对照组(14.3％和25．7％)，糖尿病肾病组的等位基因T频率(59．8％)也高于糖尿病组(40％)和正常对照组(27．1％)，差异均有统计学意义，糖尿病组和正常对照组之间的分布无统计学差异。结论 MTHFR基因C677T变异与甘肃汉族2型糖尿病患者糖尿病肾病的发病有关，等位基因T可能是糖尿病肾病的易感基因。     

男性不育与Y染色体AZF微缺失的关系探讨

目的：探讨检测男性不育患者Y染色体微缺失的临床意义。方法：应用多重聚合酶链反应（PCR）对门诊122例男性不育患者行Y染色体AZFa、AZFb、AZFc和AZFd区15个序列标签位点（STS）[包括由欧洲男科学会（EAA）推荐的6个STS位点]基因进行微缺失检测,并同时进行基础性激素和染色体核型检测。结果：122例男性不育患者中AZF基因微缺失患者共检出12例,总缺失率为9.8%（12/122）,其中无精子症组、严重少弱精子症组和少精子症组患者的缺失率分别是11.1%（5/45）、10.9%（6/55）、4.5%（1/22）;1例为染色体核型异常,核型为45,XY,-13-14+t（13;14 ）（q11;q11）,未检测到AZF微缺失。无精子症组和严重少弱精子症组患者Y染色体AZF微缺失率明显高于少精子症组（χ2=7.810,P=0.005;χ2=7.700,P=0.006）。3组间基础性激素水平差异无统计学意义（P＞0.05）。结论：AZF微缺失是男性不育的重要原因之一,可引起原发性无精子症、严重少弱精子症和少精子症。男性不育患者在接受辅助生殖技术前进行AZF微缺失检测,可减少各种不必要的治疗带来的心理痛苦和经济压力,具有重要的临床意义。     

囊性纤维化跨膜传导因子基因与男性不育

囊性纤维化(cysticfibrosis,CF)是白种人的一种常见致命性常染色体隐性遗传病,由囊性纤维化跨膜传导因子(cystic fibrosis transmembrane conductance regulator,CFTR)基因突变所致。CFTR基因突变在男性不育中多表现为先天性双侧输精管缺如、单侧输精管缺如和精子质量低下。卵胞浆内单精子注射(ICSI)技术使囊性纤维化患者有了生育后代的机会,但同时可能将突变的基因遗传给下一代。因此,胚胎植入前的遗传学诊断与遗传学风险评估非常重要,应该避免将有基因突变的胚胎植入母体子宫,提高生育质量。     

蛋氨酸合成酶还原酶基因A66G多态性与Down综合征发生的相关研究

目的:研究蛋氨酸合成酶还原酶(MTRR)基因A66G多态性与Down综合征的关系。方法:采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)法对32例DS患儿母亲及70例未生育DS患儿女性MTRR的A66G进行基因分析。比较上述各组基因型和等位基因频率分布有无差异。结果:MTRR基因A66G突变型等位基因G频率在实验组和对照组中有显著性差异,GG基因型频率分布差异有显著性(P<0·05)。AG基因型比AA基因型生育DS患儿风险高1·98倍,GG基因型比AA基因型生育DS患儿风险高5·2倍。结论:MTRR A66G基因多态性与Down综合征发生相关,AG、GG基因型增加了Down综合征的发生风险。     

深圳市405例男性高危人群性病患病率及行为危险因素调查

目的了解性病门诊男性人群性病患病状况和人口学与行为学特征,为制定性病艾滋病干预措施和评估干预效果提供依据。方法收集深圳市性病门诊男性就诊者的静脉血,尿道拭子及调查问卷,进行性病艾滋病的检测,并对调查资料进行统计学分析。结果在450例受调查者中检出梅毒15例,占3.33%;淋病24例,占5.33%;生殖道沙眼衣原体感染43例,占9.56%;单纯疱疹病毒Ⅱ型感染82例,占18.22%;艾滋病HIV阳性2例,占0.44%;合并两种以上感染者20例,占4.45%。患者多以未婚的20-30岁青年、高中（中专）学历者为主,多来自农村。性病门诊男性就诊者对淋病、梅毒、艾滋病有较高的认知率,但对尖锐湿疣、生殖器疱疹、非淋菌性尿道炎及软下疳等认知率较低;大部分了解艾滋病的3条传播途径,但对日常生活不传播艾滋病存在着认识误区;安全套使用率低;接受过艾滋病病毒检测的仅占6.41%。结论针对性病门诊男性就诊者宣传艾滋病性病知识和安全性行为,倡导正确的求医行为,对降低性病艾滋病的流行具有重要意义。     

EV71感染手足口病不同程度患儿T细胞亚群、免疫球蛋白水平变化探讨

目的探析感染EV71重症手足口病细胞因子水平与免疫球蛋白水平的变化。方法入选我院2012年1月至2013年11月EV71感染的手足口神经系统受累期患儿104例,按病情严重程度分入A组（重症急性期患儿）、B组（普通组）,每组52例,应用ELISA法检测所有研究对象的IL-6、IL-10、TNF—α／、TGF-β血清浓度,比较两组患儿的免疫球蛋白水平、T细胞亚群水平变化。结果A组的IgA、IgG、IgM等指标水平显著高于B组（P＜O．05）;A组重症手足口病患儿的T细胞亚群CD3＋、CD4＋、CD4＋／CD8＋水平显著低于B组,差异具有统计学意义（P＜0．05）。结论重症手足口病患儿血清免疫球蛋白指标呈高浓度状态,T细胞亚群指标呈现低浓度状态。结合患儿的临床表现．更准确地早期识别重症病例。