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.     

广州香港英国三地在职老师对儿童多动行为症状的评估比较

尽管已有较多的跨文化研究报道了各国儿童多动症患病率不同 ,如美国和英国以及中国 ,印度和患病率各不一致 ,这些结果提示了不同文化对儿童多动症诊断的影响 ,但不同文化背景如何在儿童多动症诊断中起作用尚未有详尽研究。近来有研究提示不同国度的精神专科医生对儿童多动行为的评估不一致的报道 ,提示专家对症状的定义标准不一致。因为儿童多动症的诊断至目前为止 ,尚没有明确的病理变化作为诊断依据 ,目前仍以患儿的家长和老师提供的病史和其他临床检查为主要依据 ,所以 ,老师对儿童行为的观察和评估在提供儿童多动症的早期诊断方面具有重…     

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.     

α2-巨球蛋白基因I1000V多态性与散发阿尔茨海默氏病的关联研究

目的近年来有研究发现α2-巨球蛋白基因(α2-macroglobulin，A2M)Ile1000Val多态与阿尔茨海默氏病(Alzheimer’s disease，AD)发病有关联，但也有相悖的研究结果报道。因此．我们利用较大的样本，观察了A2M基因Ile1000Val多态在广州及成都地区汉族老年人中的分布，并探讨其与散发AD的相关性。方法以广州地区257例散发AD患者和242名正常老年人、成都地区112例散发AD患者和113名正常老年人为对象进行病例一对照研究。用聚合酶链反应一限制性片段长度多态性方法分析A2M基因11000V多态性和载脂蛋白E基因(apolipoprotelnE，apoE)多态性。结果(1)在两地合并样本中，AD患者与对照组中等位基因A2M-1000V的频率分别为7．7％与8．7％，广州与成都地区AD患者与对照组中A2M基因I1000V多态的分布差异无统计学意义。(2)散发AD无论按是否伴有apoE—ε4或按发病年龄分成不同亚组后，A2M基因I1000V多态的分布在病例组与对照组之间差异无统计学意义。结论广州与成都汉族人群中A2M基因I1000V多态与散发AD不具有关联。     

老年心肌梗塞后抑郁与5-HT的关系

目的 探讨老年急性心肌梗塞后抑郁与血浆5羟色胺(5-HT)浓度的关系。方法 利用HAMD对抑郁进行评定,同时使用HPLC-EC法检测30例心梗后伴有明显抑郁症状患者的血浆5羟色胺浓度,并与30例不伴明显抑郁症状的患者以及30例健康人进行对照。结果 血浆5-HT含量抑郁组为46.37±24.47(ng/ml),非抑郁组为44.08±13.03(ng/ml),健康对照组为37.01±5.92(ng/ml)。结论　老年急性心肌梗塞患者HAMD与血浆5-HT浓度无相关。     

氯丙嗪、氯氮平和利培酮治疗对精神分裂症认知功能的影响

目的比较氯丙嗪、氯氮平、利培酮三种抗精神病药物对精神分裂症病人认知功能的影响.方法76例精神分裂症患者随机分组,分别用氯丙嗪(26例)、氯氮平(30例)和利培酮(20例)治疗1 2周.治疗前及治疗后2、4、8、1 2周分别进行GAS、BPRS、TESS、RSESE及WAIS,WMS和MIFE量表评定.结果GAS评分、BPRS评分、BPRS减分率在三组之间无显著性差异.治疗第1 2周末时,氯氮平组和利培酮组的韦氏智能语言分和总分明显较氯丙嗪组为高,韦氏记忆评分则利培酮组明显高于氯丙嗪组.氯丙嗪组韦氏智能和记忆分治疗后较治疗前下降.结论非典型抗精神病药,氯氮平和利培酮可改善精神分裂症的认知功能,利培酮的作用优于氯氮平.氯丙嗪则有加重认知功能障碍的可能.     

反相高效液相色谱法测定人血浆中利鲁唑浓度

目的 :建立测定利鲁唑血药浓度的方法。方法 :采用反相高效液相色谱法 ,以DiamonsilTM C18(250mm×4. 6mm ,5μm )为色谱柱 ,甲醇 -0 .03mol/L磷酸二氢铵 (80∶20 ,V/V)为流动相 ,乙醚为提取剂 ,流速为0. 8ml/min ,检测波长为265nm。结果 :利鲁唑检测浓度线性范围为5～1000ng/ml ,最低检测浓度为5ng/ml ;高、中、低3种浓度的回收率分别为99 .51 %、95. 74 %和97. 12 % ,日内RSD≤1 .17 %、日间RSD≤6. 48 % (n=5)。结论 :本方法灵敏、准确、简单、快速 ,可用于人体药动学研究。     

瑞波西汀与氟西汀治疗抑郁症随机双盲多中心临床研究

目的:评价瑞波西汀治疗抑郁症的疗效和安全性。方法:采用随机、双盲双模拟、氟西汀平行对照、剂量固定的多中心研究。受试者分别口服瑞波西汀胶囊8mg·d-1或氟西汀片20mg·d-1。采用汉密尔顿抑郁量表(HAMD)总分减分值作为主要疗效指标,以临床总体印象量表(CGI)和汉密尔顿焦虑量表(HAMA)评分作为次要疗效指标;采用药物不良反应量表(TESS)、实验室检查、生命体征等观察药物安全性。结果:共收集符合意向治疗抑郁症病人(ITT)222例,瑞波西汀组(试验组)109例,氟西汀组(对照组)113例。符合研究方案病人(PP)213例,瑞波西汀组104例,氟西汀组109例。治疗6wk后,瑞波西汀组HAMD总分减分值为(16±s7)分,氟西汀组为(16±7)分,与治疗基线相比差异均有非常显著意义(P<0.01),但2组相比差异无显著意义(P>0.05);瑞波西汀组有效率(HAMD减分率≥50%)为81.7%,氟西汀组为77.9%,2组相比差异无显著意义(P>0.05);瑞波西汀组临床治愈率(HAMD总分≤8)为62.4%,氟西汀组为58.4%,2组差异无显著意义(P>0.05);在CGI,HAMA评分上,2组差异亦无显著意义。安全性分析显示,2组不良反应的症状和发生率相比差异均无显著意义。结论:瑞波西汀治疗抑郁症安全有效。     

131例海洛因成瘾临床资料分析

本文用症状自评量表[SCL—90],SIMH付反应量表[TESS]和戒断症状量表(自编)对131例海洛因成瘾者进行测定,并通过治疗观察临床症状变化,现综合资料如下。     

脑源性神经营养因子与抑郁症

神经营养因子是神经元网络形成和可塑性的重要调节因子,以脑源性神经营养因子(BDNF)最受关注。抗抑郁治疗通过提高BDNF表达来促进神经元可塑性,从而取得疗效。本文从临床前研究、临床研究和基因多态性等方面对BDNF与抑郁症作一综述。