铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

《中国药典》2000年版(一部)饮片名称商榷

《中国药典》2 0 0 0年版(一部) (简称新版《药典》)已经颁布施行,它不论总体水平或者从先进性、科学性、实用性等方面来看,都比上版《药典》有显著提高,可喜可贺。然而,要编好一本既体现传统医药学特色,又满足当代需要的《药典》,少有前车之鉴,难度很大。为使《中国药典》更臻完善,笔者仅就新版《药典》成方制剂中的饮片名称问题提出商榷。1　饮片名称含义不清新版《药典》收载的全部成方制剂( 4 58种)处方中,出现直接反映炮制....     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

目的 探讨铁调节蛋白2(IRP2)基因2616C/T多态性与阿尔茨海默病(AD)、血管性痴呆(VD)的关系.方法 用聚合酶链反应-限制性片段长度多态性技术检测281例AD、60例VD患者及285名正常老年人的IRF2基因2616C/T多念性分布,并评定简易精神状态检查表(MMSE);将AD患者按临床痴呆评定量表(CDR)评分分为轻度痴呆组(CDR=1分,72例)和中重度痴呆组(CDR=2分或3分,209例),比较各组间IRP2基因2616C/T多态性.结果 (1)AD组与对照组基因型(χ2=2.46)及等位基因(χ2=2.17)总体分布差异无统计学意义(P>0.05);而中重度AD组携带T等位基因的基因型频率(78.0%)高于对照组(69.8%;χ2=4.106,P<0.05),Logistic回归分析其中携带含T等位基因的基因型患者的比值比=1.62(95%可信区间=1.03～2.54).VD组携带含T等位基因型频率和T等位基因频率虽高于对照组,但未达统计学意义(P>0.05).(2)中重度AD患者T/T基因型频率(25.8%)和T等位基因频率(51.9%)高于轻度AD患者(分别为12.5%和40.3%),差异均有统计学意义(χ2=5.477和5.803,P<0.05).(3)携带T/T基因型的AD患者MMSE评分低于C/C基因型者(P=0.028)和C/T基因型者(P=0.014).结论 IRP2基因2616C/T多态性与中重度AD相关,而与VD可能无关联;T/T基因型可能是AD患者认知功能损害的危险因子.     

虚拟仿真系统在口腔实验教学中的应用

口腔实验教学中采用计算机虚拟仿真技术,通过虚拟仿真操作进行训练,运用实时感知的三维立体界面,允许学生对其交互仿真操作,调动学生学习的积极性和主动性,让学生反复操练,提高诊疗操作能力。优化学生实习前培训,加强学生理论知识学习和实践操作的有机结合。本文将对虚拟仿真系统在口腔实验教学中的应用现状作一分析。     

微柱凝胶技术在新生儿溶血病抗体检测中的应用价值

目的 探讨微柱凝胶法在新生儿溶血病抗体检测中的应用价值,为临床诊断提供依据.方法 对249例新生儿溶血病患儿,分别应用微柱凝胶法、试管法进行直接抗人球蛋白试验、抗体游离试验及抗体放散试验检测,并对检测结果进行对比分析.结果 微柱凝胶法检出直接抗人球蛋白试验阳性率为90.4％,抗体游离试验阳性率为92.8％,抗体放散试验阳性率为96.4％;试管法检出直接抗人球蛋白试验阳性率为73.5％,抗体游离试验阳性率为80.7％,抗体放散试验阳性率为85.9％;微柱凝胶法检出阳性率均显著高于试管法(P＜0.01).结论 微柱凝胶法对检测新生儿溶血病抗体的检出率高于试管法,值得临床推广应用.     

经额眶入路切除眶尖肿瘤11例疗效分析

目的 探讨采用经额眶入路摘除眶尖肿瘤的疗效。方法 11例眶尖肿瘤，手术先由神经外科作经额部的4边形额肌骨瓣，然后沿前颅窝底取下眶顶骨板、切开骨膜入眶。随后由眼科医生进行眶内肿瘤摘除的操作，再由神经外科医生继续处理有颅眶沟通者的颅内部分并关闭切口。结果 11例中有9例显微镜下完整摘除肿瘤，2例部分摘除。术后视力无下降，术前9例视力下降者，术后7例有提高。眼球突出度平均降低1．5mm；眼球轻度下陷1例；术后发热1例。无1例发生与开颅有关的并发症。结论 眼科与神经外科联台行经额眶入路眶尖肿瘤摘除术，可以满意地解决眶尖肿瘤难以暴露的问题，绝大多数良性肿瘤可完整摘除甚至是在显微镜下摘除，有利于减少手术并发症的发生，疗效满意。     

铁调节蛋白2基因多态性与阿尔茨海默病及血管性痴呆的相关分析

Objective To evaluate the association of 2616c/T polymorphism in iron regulatory protein 2(IRP2)gene with Alzheimer disease(AD)and Vascular dementia(VD).Methods In this study,281 patients with AD,60 with VD,and 285 normal aged were recruited.The 2616C/T polymorphism in IRP2 gene was analyzed by using polymerase chain reaction-restriction fragment length polymorphism.And the cognitive function was assessed with the Mini-Mental State Examination(MMSE).Results (1)No significant difieFences were demonstrated in IRP2 genotype or allele frequencies between AD patients and controls(χ2=2.46,P=0.292;χ2=2.17,P=0.141 respectively).However,when AD patients were stratified by disease severity.the frequency of T allele carriers in the moderate to severe AD patients was 78.0%,significantly higher than that in controls(69.8%;χ2=4.106,P＜0.05).Logistic regression analysis demonstrated that the age-,sex-and ApoE-adiusted OR of modcrate to severe AD patient with T allele was 1.62(95% CI=1.03-2.54).The frequency of T allele carriers or T allele in VD patients was higher than that of controls,but the difference was not statistically significant(P＞0.05).(2)The frequency of tit genotype or T allele in the moderate to severe AD patients was significantly higher than that in mild AD patients(25.8%vs.12.5%,χ2=5.477,P＜0.05;51.9%vs.40.3%,χ2=5.803,P＜0.05 respectively).(3)MMSE scores of the AD patients with TT genotype was significantly lower than ones with CC or CT genotype(P=0.028;P=0.014 respectively).Conclusion The 2616C/T polymorphism in the IRP2 gene is possibly associated with moderate to severe AD.but not associated with VD.And the TT genotype may be a risk factor for cognitive impairment of patients with AD in Chinese Han.     

建立开放式口腔实训中心的探索

口腔医学是一门实践科学,在每个口腔专业的教学中,理论教学和实践教学共同组成了其完整的教学体系.如何提高学生的动手操作能力,提高实践教学的质量是口腔医学教学需要解决的问题.而将口腔实训中心开放,给学生更多的操作练习机会,是解决这个问题的一条很好途径.     

北京市膏药熬制经验调查研究

膏药的熬制,历代皆凭经验操作;膏药的质量,也凭老师傅手捻、拉、揉、捏等经验来评定优劣,没有客观的鉴定标准。这些情况不便于继承研究,尤不便于发展现代化的生产。为此,1963年我们到北京市五家药厂进行了膏药熬制经验实地调查,了解学习膏药大生产的方法和过程,又在实验室内制备各种规格的膏药样品,聘请老师傅分别进行了质量鉴定,试图对膏药生产传统经验作一科学整理。