Pelvic Pain Alters Functional Connectivity Between Anterior Cingulate Cortex and Hippocampus in Both Humans and a Rat Model.

Pelvic Pain Alters Functional Connectivity Between Anterior Cingulate Cortex and Hippocampus in Both Humans and a Rat Model.
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盆腔疼痛改变人类和大鼠模型中前扣带皮层和海马之间的功能连接

DOI:
10.3389/fnsys.2021.642349
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发表时间:
2021
影响因子:
3
通讯作者:
Yang L
Yang L
中科院分区:
医学3区
文献类型:
--
作者:
Yu W;Wu X;Chen Y;Liang Z;Jiang J;Misrani A;Su Y;Peng Y;Chen J;Tang B;Sun M;Long C;Shen J;Yang L

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前扣带皮层 (ACC) 和海马体 (HIPP) 是与疼痛和疼痛相关情感处理相关的两个关键大脑区域。然而,骨盆疼痛是否以及如何改变基线下和社交疼痛期间 ACC 和 HIPP 的神经活动和连接,以及潜在的细胞和分子机制仍不清楚。利用功能磁共振成像 (fMRI) 结合电生理学和生物化学,我们发现盆腔疼痛,特别是原发性痛经 (PDM),会导致静息态 fMRI 中 ACC 和 HIPP 之间的功能连接增加,而在排卵期 PDM 女性的社会排斥期间,连接会出现较小程度的减少。类似地,模型大鼠表现出 ACC-HIPP 伽马带同步性显着增加,这与 ACC-theta 对 HIPP-伽马调节的减少以及受体蛋白和兴奋水平的增加有关。这项研究将人类功能磁共振成像和动物研究结合起来,改进了改善疼痛和疼痛相关情感处理的治疗策略。
The anterior cingulate cortex (ACC) and hippocampus (HIPP) are two key brain regions associated with pain and pain-related affective processing. However, whether and how pelvic pain alters the neural activity and connectivity of the ACC and HIPP under baseline and during social pain, and the underlying cellular and molecular mechanisms, remain unclear. Using functional magnetic resonance imaging (fMRI) combined with electrophysiology and biochemistry, we show that pelvic pain, particularly, primary dysmenorrhea (PDM), causes an increase in the functional connectivity between ACC and HIPP in resting-state fMRI, and a smaller reduction in connectivity during social exclusion in PDM females with periovulatory phase. Similarly, model rats demonstrate significantly increased ACC-HIPP synchronization in the gamma band, associating with reduced modulation by ACC-theta on HIPP-gamma and increased levels of receptor proteins and excitation. This study brings together human fMRI and animal research and enables improved therapeutic strategies for ameliorating pain and pain-related affective processing.
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