PLOS ONE:镰状细胞病相关慢性疼痛改变大脑功能

2019-05-22 海北 MedSci原创

已有的研究显示,慢性疼痛影响50%的患有镰状细胞病(SCD)的成年人。尽管认为中枢致敏作用有助于这种慢性疼痛的发病机制,但至今为止,还没有研究检查患有和不患有慢性疼痛的SCD患者之间大脑功能连接的差异。

已有的研究显示,慢性疼痛影响50%的患有镰状细胞病(SCD)的成年人。尽管认为中枢致敏作用有助于这种慢性疼痛的发病机制,但至今为止,还没有研究检查患有和不患有慢性疼痛的SCD患者之间大脑功能连接的差异。

最近,研究人员使用大脑的静息状态功能磁共振成像(rsfMRI)对患有SCD且有或没有慢性疼痛的成人进行了观察性队列研究。

研究人员检验了这样的假设:与没有慢性疼痛的患者相比,那些患有慢性疼痛的患者在导水管周围灰质(PAG)和大脑其他区域之间的功能连接性方面存在差异。

22名患有SCD的成年人,15名患有慢性疼痛,7名没有慢性疼痛,以及10名非洲裔美国人的对照者,接受了大脑的rsfMRI

当将患有慢性疼痛的SCD患者与没有慢性疼痛的患者进行比较时,在PAG和大脑的9个区域之间发现连接的显着差异,包括在默认模式网络中的几个,这是涉及内省的网络,与其他慢性疼痛综合征也有关。

有和没有慢性疼痛的SCD患者之间功能连接的变化提示慢性疼痛的机制涉及大脑的神经塑性变化。


原始出处:

Karafin MS et al. Chronic pain in adults with sickle cell disease is associated with alterations in functional connectivity of the brain. PLOS ONE, 2019; doi: 10.1371/journal.pone.0216994. eCollection 2019.


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    2019-05-22 龙胆草

    学习谢谢分享

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