Ann Neurol:人脑对腹部手术的免疫反应

2017-05-02 zhangfan MedSci原创

人类大脑与外周先天免疫系统炎症反应的相互作用,这种相互作用与某些手术导致的认识功能损伤相关

临床前研究表明手术引发全身炎症反应到达大脑后导致免疫激活和认知能力下降,虽然目前已经部分描述了这种大脑信号转导通路,但尚缺乏人体信息转导的研究。近日研究人员通过正电子发射断层扫描(PET),探讨腹部手术对人类大脑免疫系统中血液免疫反应性、血浆炎症标志物与认知功能的短期和长期影响。

研究参与者为八名接受全身麻醉下前列腺切除术的男性,研究人员使用[11C] PBR28脑PET显像评价患者在手术前、手术后3-4天以及术后3个月的脑免疫细胞活化研究,同时,对患者的全身炎症性生物标志物,体外血液试验脂多糖(LPS)刺激的免疫反应,认知功能进行了评估。

研究发现,相比于基线,在术后3-4天,患者全脑性灰质[11C] PBR28结合能力下调26±26%(平均±标准偏差,p=0.023),在3个月后结合能力恢复或提高,LPS诱导的炎症标志物肿瘤坏死因子α的释放减少41±39%,与[11C] PBr28分布体积变化相对应。

研究解释了人类手术后大脑免疫系统的变化,提示人类大脑与外周先天免疫系统炎症反应的相互作用,这种相互作用与某些手术导致的认识功能损伤相关。

原文出处:

Anton Forsberg PhD et al. The immune response of the human brain to abdominal surgery. Ann Neurol. April 6 2017

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    2017-05-20 I come

    学习下新知识

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    2017-08-25 yinhl1978
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    2017-05-02 tanxingdoctor

    学习了谢谢分享

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