Neurology:血红蛋白和贫血与痴呆风险和脑MRI变化相关

2019-08-01 xing.T MedSci原创

由此可见,低血红蛋白和高血红蛋白水平与痴呆风险增加有关,包括AD,这可能与白质完整性和脑灌注的差异有关。

近日,神经病学领域权威取杂志Neurology上发表了一篇研究文章,研究人员旨在确定血红蛋白水平和贫血与痴呆风险的长期关联。

研究人员对基于人群的鹿特丹研究(平均年龄64.6岁,女性57.7%)中12305名无痴呆参与者进行血清血红蛋白测定,并确定了与血红蛋白和贫血相关的痴呆和阿尔茨海默病(AD)(直到2016年)的风险。在5267名没有痴呆但进行了脑磁共振成像检查的参与者中,研究人员评估了血红蛋白与血管性脑病、结构连接性和全脑灌注之间的相关性。

在平均随访12.1年期间,1520人患有痴呆症,其中1194人患有AD。研究人员观察到血红蛋白水平与痴呆之间存在U形关联(p=0.005),因此,低血红蛋白和高血红蛋白水平均与痴呆风险增加相关(最低与中间五分位数的风险比[95%置信区间(CI)]为1.29 [1.09-1.52];最高与中间五分位数相比风险比为1.20 [1.00-1.44])。贫血的总体患病率为6.1%,贫血与AD痴呆风险增加34%(95%CI为11%-62%)和41%(15%-74%)相关。在没有痴呆但接受脑磁共振成像检查的个体中,血红蛋白与白质高信号量(p=0.03)和结构连接性(平均扩散系数,p<0.0001)具有类似的U形关联,但与皮质和腔隙性梗死不存在这种关联。脑微出血更常见于贫血症。血红蛋白水平与脑灌注呈负相关(p<0.0001)。

由此可见,低血红蛋白和高血红蛋白水平与痴呆风险增加有关,包括AD,这可能与白质完整性和脑灌注的差异有关。 

原始出处:

Frank J. Wolters,et al.Hemoglobin and anemia in relation to dementia risk and accompanying changes on brain MRI.Neurology.2019.https://n.neurology.org/content/early/2019/07/31/WNL.0000000000008003

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    2020-12-10 14701227m79暂无昵称

    学习学习

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    2020-06-06 yinhl1978
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    2019-08-02 一个字-牛

    学习了谢谢分享

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    2019-08-01 junJUN

    老年人痴呆何药可用??

    0

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血红蛋白异常增高,竟是……

在血常规检验中,血红蛋白异常(HGB)增高的病人时有出现,但“真高”or“假高”,有时候需要认真鉴别,否则很可能造成检验结果的误判,甚至造成纠纷。那么下面就跟大家分享几种“真假”HGB案例。

Blood:献血者和受血者特征均会影响输血后血红蛋白的增量

目前,输血相关的重要研究多集中在献血者、血制品的制备和存储,以及最佳的输血实践。为了更好地了解这些因素对红细胞(RBC)输注效果的影响,研究人员对2008年-2016年期间的献血者和输注一单位红细胞的患者的成分数据进行了关联分析。

专访美国“不可能食品”创始人:人造肉的难题是解释肉的美味

“本质上人们爱的不是肉,而是血红素”

她无意间所指的这项指标,竟牵出小孩咳嗽的真相!

一个四岁小女孩,报告中的红细胞、血红蛋白、血小板、白细胞计数及分类均在正常范围,但平均血红蛋白浓度(MCHC)却超过了参考值上限。

INT J LAB HEMATOL:HBG2、BCL11A、HMIP多态性与胎儿血红蛋白及镰状细胞病临床表型的关系

胎儿血红蛋白(HbF)是镰状细胞病(SCD)严重程度的主要调节因子。HbF主要由染色体2、6、11上的三个主要数量性状位点(QTL)调控。研究人员对3个QTLs (HBG2, rs7482144;BCL11A、rs1427407、rs10189857采用多重PCR和反向杂交的方法对HBS1L MYB基因间区、rs28384513和rs9399137)进行了研究,并评估了它们在伊拉克库尔德人SCD

NEJM:Roxadustat可提高慢性肾病患者血红蛋白水平

研究发现,在未接受透析的中国慢性肾病患者中,Roxadustat治疗可提高血红蛋白水平