维生素D受体基因启动子区CDX2多态性与儿童氟斑牙的关系

目的 了解维生素D受体(VDR)基因启动子区CDX2结合位点多态性与儿童氟斑牙易感性的关系.方法 Dean法检查8～12岁风台县关店乡儿童氟斑牙患病情况,收集氟斑牙患者102例及正常对照者107例,采集外周静脉血提取DNA,采用等位基因特异多重聚合酶链反应(ASM-PCR)测定两组儿童VDR基因CDX2结合位点多态性.结果 VDR基因CDX2结合位点多态性分布频率为:氟斑牙患者GG占48.0%、AG占25.5%、AA占26.5%;正常对照组GG占55.1%、AG占28.0%、AA占16.9%.两组基因型分布比较差异无统计学意义(P＞0.05).结论 VDR基因CDX2结合位点多态性与所调查儿童的氟斑牙发生无明显关系.     

维生素D受体基因多态性与汉族儿童氟斑牙易感性的关系研究

objective To observe the distribution of vitamin D receptor(VDR)gene polymorphisms in children of Han nationality and investigate the relationship between VDR gene polymorphisms and the susceptibility to children's dental fluorosis of Han nationality.Methods From October of 2008 to March of 2009,a case-control study was conducted among children between 8 and 12 years old with(n=101)and without(n=102)dental fluorosis using Dean method in Guandian countyside of Fengtai county in Anhui province.DNA was extracted from blood samples ofthese children.The Apa I,Bsm I,Fok I and raq I polymorphisms in the VDR gene were genotyped using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP).The distribution of the genotypes in patients and the control group were analyzed. Results Different genotypes of the VDR gene existed in children of Han nationality with the highest distribution frequency of Aa, bb, Ff, TT, which respectively was 51.7% ( 105/203 ), 89.7% (182/203), 52.7% (107/203), 93.1% (189/203), followed by genotype distribution frequency of aa, Bb, FF, Tt, being 39.9% (81/203),7.9% (16/203),31.5% (64/203) ,6.9% (14/203), respectively. AA,BB, ff, tt distribution frequency was the lowest as follows, 8.4% ( 17/203 ), 2.4% (5/203), 15.8% (32/203),0 (0/203). The frequency distribution of VDR Apa I genotype was AA 7.9% (8/101), Aa 55.4% (56/101), aa 36.7%(37/101) in children with fluorosis, and AA 8.8% (9/102), Aa 48.0% (49/102), aa 43.3% (44/102) in children without fluorosis, respectively. There were no significant differences in the two groups(χ2= 1.13, P > 0.05).The frequency distribution of VDR Bsm I genotype was BB 3.0%(3/101), Bb 5.9%(6/101 ), bb 91.1% (92/101) in children with fluorosis, and BB 2.0% (2/102), Bb 9.8% (10/102), bb 88.2% (90/102) in children without fluorosis, respectively. There were no significant differences in the two groups(χ2 = 0.55, P > 0.05). The frequency distribution of VDR Fok I genotype was FF 28.7%(29/101), Ff 56.4% (57/101), ff 14.9%(15/101) in children with fluorosis, and FF 34.3% (35/102), Ff 49.0% (50/102), ff 16.7% (17/102) in children without fluorosis,respectively. There were no significant differences in the two groups(χ2 = 1.14, P > 0.05). The frequency distribution of VDR Taq I genotype was TT 93.1%(94/101), Tt 6.9%(7/101) in children with fluorosis, and TT 93.1% (95/102), Tt 6.9%(7/102) in children without fluorosis, respectively. The tt genotype was not found. There were no significant differences in the two groups (χ2 = 0.00, P > 0.05 ). Conclusions Different genotypes of the VDR gene existed in children of Han nationality. There were no correlation between VDR Apa I , Bsm I , Fok I , Taq I gene polymorphisms and children's dental fluorosis of Han nationality in this area.     

凤台县1990－1994年健康人群EHF隐性感染调查

凤台县是流行性出血热老疫区和高发区，我们检测健康人血清２３７８份，阳性１１２份，阳性率为４．７％，提示高发区健康人群隐性感染高于其它地区。其中农民人群隐性感染率较高为６．４％，显著高于其它人群。     

凤台县1993年肾综合征出血热监测总结

为掌握本县肾综合征出血热（HFRS）的流行态势，1993年继续开展本病的监测工作。现总结如下：一、人间疫情：１．发病情况：全年共发病553例，发病率90.7／10万，比1992年（37.4／10万）上升2.4倍；病死2例，病死率0.4％。（下转1３3页）(上承130页）2．人群分布：农民发病占88%；男:女=1.6:l；最小年龄7岁，最大76岁，20～50岁占84%。同以在一样，呈现青壮年、农民、男性多发的特点。3．季节分布：各月均有发病，其中10～12月发病占全年病例总数的87.l%，流行高峰期比1992年提前2个月。4.地区分布：全县现有18个乡镇，均有疫情报告。发病…     

凤台县发现1例迈氏唇鞭毛虫的报告

1998年4月份我们在调查中小学生常见肠道蠕虫感染时,发现1例迈氏唇鞭毛虫(Chilomastix mesnili),现将观察结果报告如下。材料和方法 1、取蚕豆大小新鲜粪样,用干净的10×10cm~2塑膜包好后,再装入半个牛皮纸的信封内于当日送检。 2、当日收样后编号,按常规生理盐水直接涂片或碘液直接涂片法操作,置Olympus显微镜下检查。必要时进行随访调查。     

凤台县肾综合征出血热防治研究评析

为掌握我县肾综合征出血热 (HemorrhageFeverWithRenalSyndrome .HFRS)的流行规律 ,控制我县肾综合征出血热流行。我们开展了调查、收集整理全县人口资料和HFRS发病情况及鼠密度 ,运用间接免疫荧光技术 ,检测疑似病人、健康人和鼠血HV抗体及鼠肺HV抗原。根据监测结果指导我县以防鼠、灭鼠和接种HFRS疫苗为主的综合防治措施 ,降低了我县本病的流行强度和发病率。     

凤台县1998年肾综合征出血热疫情分析

我县今年共发生肾综合征出血热（ＨＦＲＳ）６４例,全县总人口数为６５１０００,发病率为９８／１０万,病死３例,病死率为７８％,发病例数仍属低发年份。现将１９９８年肾综合征出血热疫情分析如下。ＨＦＲＳ发病情况（１）时间分布：全年各月均有发病,主要高发...     

维生素D受体基因多态性与汉族儿童氟斑牙易感性的关系研究

objective To observe the distribution of vitamin D receptor(VDR)gene polymorphisms in children of Han nationality and investigate the relationship between VDR gene polymorphisms and the susceptibility to children's dental fluorosis of Han nationality.Methods From October of 2008 to March of 2009,a case-control study was conducted among children between 8 and 12 years old with(n=101)and without(n=102)dental fluorosis using Dean method in Guandian countyside of Fengtai county in Anhui province.DNA was extracted from blood samples ofthese children.The Apa I,Bsm I,Fok I and raq I polymorphisms in the VDR gene were genotyped using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP).The distribution of the genotypes in patients and the control group were analyzed. Results Different genotypes of the VDR gene existed in children of Han nationality with the highest distribution frequency of Aa, bb, Ff, TT, which respectively was 51.7% ( 105/203 ), 89.7% (182/203), 52.7% (107/203), 93.1% (189/203), followed by genotype distribution frequency of aa, Bb, FF, Tt, being 39.9% (81/203),7.9% (16/203),31.5% (64/203) ,6.9% (14/203), respectively. AA,BB, ff, tt distribution frequency was the lowest as follows, 8.4% ( 17/203 ), 2.4% (5/203), 15.8% (32/203),0 (0/203). The frequency distribution of VDR Apa I genotype was AA 7.9% (8/101), Aa 55.4% (56/101), aa 36.7%(37/101) in children with fluorosis, and AA 8.8% (9/102), Aa 48.0% (49/102), aa 43.3% (44/102) in children without fluorosis, respectively. There were no significant differences in the two groups(χ2= 1.13, P > 0.05).The frequency distribution of VDR Bsm I genotype was BB 3.0%(3/101), Bb 5.9%(6/101 ), bb 91.1% (92/101) in children with fluorosis, and BB 2.0% (2/102), Bb 9.8% (10/102), bb 88.2% (90/102) in children without fluorosis, respectively. There were no significant differences in the two groups(χ2 = 0.55, P > 0.05). The frequency distribution of VDR Fok I genotype was FF 28.7%(29/101), Ff 56.4% (57/101), ff 14.9%(15/101) in children with fluorosis, and FF 34.3% (35/102), Ff 49.0% (50/102), ff 16.7% (17/102) in children without fluorosis,respectively. There were no significant differences in the two groups(χ2 = 1.14, P > 0.05). The frequency distribution of VDR Taq I genotype was TT 93.1%(94/101), Tt 6.9%(7/101) in children with fluorosis, and TT 93.1% (95/102), Tt 6.9%(7/102) in children without fluorosis, respectively. The tt genotype was not found. There were no significant differences in the two groups (χ2 = 0.00, P > 0.05 ). Conclusions Different genotypes of the VDR gene existed in children of Han nationality. There were no correlation between VDR Apa I , Bsm I , Fok I , Taq I gene polymorphisms and children's dental fluorosis of Han nationality in this area.     

凤台县1982至1993年肾综合征出血热监测及分析

凤台县１９８２－１９９３年肾综合征出血热人间疫情，兽间疫情监测及控制效果。自１９５７年淮水利工程某工段发生首例病人以来，病例逐年增多，疫区逐渐扩大。１９５９－１９９３年共发病６９２４例，死亡１４１例，年均发病率由６０年代的８．２８／１０万上升至８０年代的８０．６４／１０万，９０年代前３年发病率为６７．７５／１０万，病死率为１９５９年的４０％，６０年代的６．４７％，８０年代的１．５９％降至９０年代（     

维生素D受体基因多态性与汉族儿童氟斑牙易感性的关系研究

目的 观察维生素D受体(VDR)基因多态性在汉族儿童中的分布情况,探讨VDR基因多态性与汉族儿童氟斑牙易感性的关系.方法 2008年10月至2009年3月,Dean法检查安徽省凤台县关店乡8～12岁儿童氟斑牙患病情况,选择氟斑牙儿童101例及对照儿童102例,采集外周静脉血提取DNA,采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法测定两组儿童VDR Apa I、Bsm I、Fok I和Taq I的基因型,观察汉族儿童VDR各基因型分布情况,并分析两组间基因型分布的差异.结果 汉族儿童中存在VDR基因多态性.且基因型的分布以Aa、bb、Ff、TT居多,分别占51.7%(105/203)、89.7%(182/203)、52.7%(107/203)、93.1%(189/203);aa、Bb、FF、Tt次之,分别占39.9%(81/203)、7.9%(16/203)、31.5%(64/203)、6.9%(14/203);AA、BB、ff、tt最少,分别占8.4%(17/203)、2.4%(5/203)、15.8%(32/203)、0(0/203).VDR Apa I基因型分布频率为:氟斑牙患者AA占7.9%(8/101),Aa占55.4%(56/101),aa占36.7%(37/101);对照组AA占8.8%(9/102),Aa占48.0%(49/102),aa占43.3%(44/102);两组基因型分布比较,差异无统计学意义(χ2=1.13,P>0.05).VDR Bsm I基因型分布频率为:氟斑牙患者BB占3.0%(3/101),Bb占5.9%(6/101),bb占91.1%(92/101);对照组BB占2.0%(2/102),Bb占9.8%(10/102),bb占88.2%(90/102);两组基因型分布比较,差异无统计学意义(χ2=0.55,P>0.05).VDR Fok I基因型分布频率为:氟斑牙患者FF占28.7%(29/101),Ff占56.4%(57/101),ff占14.9%(15/101);对照组FF占34.3%(35/102),Ff占49.0%(50/102),ff占16.7%(17/102);两组基因型分布比较,差异无统计学意义(χ2=1.14,P>0.05).VDR Taq I基因型分布频率为:氟斑牙患者TT占93.1%(94/101),Tt占6.9%(7/101);对照组Tr占93.1%(95/102),Tt占6.9%(7/102);未发现tt型;两组基因型分布比较,差异无统计学意义(χ2=0.00,P>0.05).结论 汉族儿童中存在VDR基因多态性,但VDR Apa I、Bsm I、Fok I和Taq I 4个酶切位点的多态性与所调查儿童氟斑牙发生无明显关系.