AP&T: 炎症性肠病患者患痴呆风险明显增加

2022-08-11 xuyihan MedSci原创

痴呆是指慢性获得性进行性智能障碍综合征。临床上以缓慢出现的智能减退为主要特征,伴有不同程度的人格改变。

全世界有1000万例痴呆事件发生,世界卫生组织预计到2050年之前痴呆患者将增加三倍,越来越多的证据表明肠道微生物群参与了通过微生物群-肠-脑轴介导的神经认知衰退。炎症性肠病(IBD) ,包括溃疡性结肠炎 (UC) 和克罗恩病 (CD)是具有不同强度炎症的慢性肠道疾病,其特征可能是微生物群组成的改变。微生物群改变的程度与肠道炎症的严重程度有关。有趣的是,几项研究表明,IBD 患者患各种脑部疾病的风险增加,包括多发性硬化症、焦虑症和抑郁症、精神分裂和帕金森病,因此进一步支持微生物群在IBD中肠-脑轴的潜在临床重要性。一项基于台湾人群的队列研究表明,IBD 患者的痴呆风险增加了2.5倍,IBD 和痴呆之间的关联可能证明对 IBD 患者的早期发现和干预痴呆很重要。因此,本项研究旨在探究IBD(UC 或 CD)患者全因痴呆的风险。

 

 

为此,研究人员在丹麦进行了一项全国性的基于人群的队列研究,将所有IBD的患者纳入其中,并按性别、出生年份和居住地区与10倍比例的没有 IBD 的普通人群比较。然后计算了将死亡视为竞争风险的痴呆症的累积发病率 (CIP),并将 IBD 患者与匹配比较的调整后的风险比 (HRs) 进行了比较。在嵌套病例对照分析中,研究人员调查了 IBD 严重程度、类固醇使用、结直肠和小肠手术以及医疗保健系统接触对痴呆风险的影响。

 

 

在88985名IBD患者(69.6% 患有溃疡性结肠炎 [UC],30.4% 患有克罗恩病 [CD])和 884108正常人群中,2076名IBD患者(78.1%患有 UC)和 23011名正常患者发展为痴呆。UC患者的40年全因痴呆率(CIP)为 7.2%,CD患者为 5.8%。UC患者的全因痴呆 (HR = 1.07 [95% 置信区间 (CI): 1.01;1.12]) 和阿尔茨海默病 (HR = 1.10 [95% CI: 1.01–1.19]) 的危险性略有增加。CD患者的全因痴呆 (HR = 1.15 [95% CI: 1.05–1.27]) 和额颞叶痴呆 (HR = 2.70 [95% CI: 1.44–5.05]) 的危险性增加。

 

本项研究证实UC和CD与全因痴呆风险略有增加有关,尤其是CD患者的额颞叶痴呆风险最高。IBD患者和检测偏倚患者频繁接触医疗保健系统可能在这种关联中起作用。

 

原始出处:

Jakob Rønnow Sand. et al. Risk of dementia in patients with inflammatory bowel disease: a Danish population-based study. Alimentary Pharmacology & Therapeutics.2022.

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    2022-08-11 neuro.Dr

    老年性痴呆,未来还是希望借助神经电生理吧,也许更为有效!

    0

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