| β-淀粉样蛋白和糖基化终产物的血清含量与脑血管病的关系
| | 教育论文下载【摘要】 目的教育论文下载 研究人急性脑梗死(acute cerebral infarction,ACI)、脑出血(intracerebral hemorrhage,ICH)后血清β-淀粉样蛋白(β-amyloid protein,Aβ)和糖基化终产物(advanced goycosylation end products,AGEs)的教育论文下载含量变化。探讨二者与脑血管病发病的可能机制。方法 采集ACI、ICH患者血清标本,应用放射免疫分析法检测Aβ,流动注射分析法测定AGEs,同时与正常对照组比较。结果 ACI组患者Aβ(1.39±0.27)mg/ml,AGEs(13.28±1.22)μg/ml,ICH组Aβ(1.32±0.19)mg/ml,AGEs(12.97±1.43)μg/ml,正常对照组Aβ(1.05±0.17)mg/ml,AGEs(10.01±1.36)μg/ml,脑血管病组均高于正常对照组,差异具有显著性,P<0.05;且Aβ和AGEs之间呈正相关关系(r=0.740,P<0.01)。结论 Aβ与AGEs可能是脑血管病发病的共同危险因素,推测两因素参与脑血管损伤导致脑血管病。 【关键词】 脑血管病;β-淀粉样蛋白;糖基化终产物 Serum level of β-amyloid protein and advanced goycosylation end products of patients with cerebrovascular diseas [Abstract] Objective To investigate the variation of β-amyloid protein and advanced goycosylation end products in serum of patients with cerebrovascular disease.To explore the effects of the two factors on CVD.Methods To collect serum of patients with acute cerebral infarction (ACI) and intracerebral hemorrhage (ICH).The level of Aβ was detected by radioimmunoassay,AGEs was detected by fluid injection,and compared with control group respectively.Results Aβ and AGEs were(1.39±0.27)mg/ml and(13.28±1.22)μg/ml in ACI group,(1.32±0.19)mg/ml and(12.97±1.43)μg/ml in ICH group,(1.05±0.17)mg/ml and (10.01±1.36)μg/ml in control group.Compared with control group,ACI and ICH groups had higher levels of Aβ and AGEs(P<0.05).There was positive correlation between the serum levels of Aβ and AGEs(r=0.692,P<0.01).Conclusion Aβ and AGEs may all join in pathogenesis of CVD,that may be infered the two factors hurt blood vessel of brain and cause CVD. [Key words] cerebrovascular disease;amyloid β-protein;goycosylation end products 脑血管病是神经系统常见病和多发病,死亡率约占所有疾病的10%,是目前人类疾病三大死亡原因之一,50%~70%的存活者遗留瘫痪或失语等严重残疾,给社会和家庭带来沉重负担[1]。本文通过测定脑血管病(cerebrovascular disease,CVD)患者血清β-淀粉样蛋白(β-amyloid,Aβ)和糖基化终产物(advanced goycosylation end products,AGEs)含量探讨两者对CVD的影响,以干预CVD的临床治疗效果。 1 资料与方法 1.1 一般资料 选取山东大学临床学院济南市中心医院神经内科住院急性脑血管病患者,均在起病1周内入院,由脑CT或MR证实的急性脑梗死和脑出血,共选入脑梗死42例,脑出血16例,平均年龄(68±5.5)岁,其中高血压病22例,冠心病19例,糖尿病6例;对照组20例,其中男15例,女5例,平均年龄(65±4.3)岁,其中,高血压病12例,糖尿病5例,冠心病16例,各组均无重要并发症,排除痴呆。 1.2 方法 1.2.1 标本采集 抽取脑血管病发病后3~10天及正常对照晨起空腹静脉血2 ml,室温下自然凝固,3000 r/min离心5 min,血清保存于-30 ℃冰箱。 1.2.2 主要仪器和试剂 GC-911 r放射免疫计数器(科大创新股份有限公司),KDC-2046低温大容量离心机(中同科学技术实业总公司);Aβ试剂盒(天津九鼎医学生物工程有限公司)。
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