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.     

抑郁和痴呆相关性研究新进展讲习班通知

由卫生部继续医学教育委员会批准的国家级继续医学教育项目“抑郁和痴呆相关性研究新进展”讲习班（编号2007-03-09—020）拟定于2007年5月28日至31日（4天）在南京举办。项目负责人为南京医科大学附属脑科医院袁勇贵副主任医师。     

老年期痴呆抑郁和焦虑障碍共病研究

目的：了解老年期痴呆患者抑郁和焦虑障碍共病率及其相关因素。方法：将100例老年期痴呆患者分为两组，阿尔茨海默病（AD）组和血管性痴呆（VD）组。用简明精神病评定量表（BPRS）、Hamilton抑郁量表（HAMD）、Hamilton焦虑量表（HAMA）进行评定。结果：AD组有焦虑20例，伴抑郁17例；VD组有焦虑17例，伴抑郁15例。共病28例，AD组与VD组各14例。AD组与VD组在HAMD因子分有明显差异（P〈0．05）。结论：老年期痴呆患者抑郁和焦虑共病率较高，应引起高度重视。     

NMDA受体介导了加兰他敏对阿尔茨海默病大鼠认知功能的改善

目的研究加兰他敏对阿尔茨海默病(AD)大鼠认知功能的影响及NMDA受体在其中的作用。方法雄性SD大鼠65只,随机分为假手术、链脲菌素(STZ)组,加兰他敏、MK-801和犬尿烯酸3个治疗组。侧脑室注射STZ制备大鼠AD模型,水迷宫试验测定大鼠的学习记忆能力。3个治疗组分别给予加兰他敏、MK-801 加兰他敏、犬尿烯酸 加兰他敏,共6周。结果术后第10天各组潜伏期明显延长,过平台次数明显减少,差异均无统计学意义。治疗6周后加兰他敏组潜伏期缩短,过平台次数增加,与STZ组比较,有显著差异,而MK-801和犬尿烯酸组潜伏期和过平台次数与STZ组比较,无明显差异。结论加兰他敏对AD大鼠的认知功能具有明显的改善作用,而应用NMDA受体阻断剂后其治疗作用消失。说明NMDA受体介导了加兰他敏对AD大鼠认知功能的改善。     

痴呆的病因探讨

对１４４例痴呆病人的病因进行了探讨、大部份诊断有ＣＴ或ＭＲＩ，以及有关化验检查。并有１６例尸检，７例活检病理资料。病因多种多样、常见病因为血管性痴呆，Ａｌｚｈｅｉｍｅｒ病及神经梅毒。     

补肾填精为主治疗老年性痴呆初探

本文初步探讨了老年性痴呆及老年动脉硬化性痴呆的病因病机,从而提出了以补肾填精、益髓健脑为主,以化痰开窍或活血行瘀为辅的治疗原则。