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Pain:帕金森氏病患者对疼痛的反应机制变化

2017-04-27 MedSci MedSci原创

疼痛是帕金森病(PD)中的常见但仍被忽视的非运动性症状。然而,目前对PD中疼痛的神经机制知之甚少。近期,一项发表在Pain杂志上的研究探讨了PD中疼痛的高发率是否与功能障碍性疼痛控制下降有关。此项研究使用fMRI的方法,在21名PD患者(Hoehn&Yahr I-III)和23名健康对照者(HC)中感知和处理热疼痛期间评估了神经反应。 PD患者无使用多巴胺能药物,以避免混杂药物的影响。对

疼痛是帕金森病(PD)中的常见但仍被忽视的非运动性症状。然而,目前对PD中疼痛的神经机制知之甚少。


近期,一项发表在Pain杂志上的研究探讨了PD中疼痛的高发率是否与功能障碍性疼痛控制下降有关。

此项研究使用fMRI的方法,在21名PD患者(Hoehn&Yahr I-III)和23名健康对照者(HC)中感知和处理热疼痛期间评估了神经反应。 

PD患者无使用多巴胺能药物,以避免混杂药物的影响。对受试者的前臂进行15次热痛刺激。为每个刺激提供强度和不愉快等级。

主观疼痛感觉在PD患者和HC中相当。然而,两组受试者的神经处理不同:PD患者在几个下降的疼痛调节区域(dACC,sgACC,DLPFC)中显示出较低的活性,并且在疼痛感知期间,dACC和DLPFC之间的功能连通性较低。PD症状严重程度与dACC-DLPFC连通性呈负相关,表明疼痛调节区域与疾病进展的功能耦合受损。

在疼痛感知期间,与HC人群相比,PD患者显示更高的MCC活性,其也随PD严重程度而变化。

有趣的是,PD患者在感知疼痛期间,dACC-DLPFC与MCC活动呈负相关。

此项研究表明,PD患者在感知和接受实验性疼痛期间改变了神经的处理。此项实验为PD患者下降疼痛调节能力的逐渐下降提供了首个证据,这也能与PD晚期疼痛的高发病率有关。

原始出处:
Forkmann K, Grashorn W, et al. Altered neural responses to heat pain in drug-naïve patients with Parkinson's Disease. Pain. 2017 Apr 18. doi: 10.1097/j.pain.0000000000000923. 

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    2017-04-29 一个字-牛

    新知识,谢谢分享

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=191738, encodeId=4d6c191e389b, content=新知识,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160304/IMG56D94856B1B5D6405.jpg, createdBy=27931687771, createdName=一个字-牛, createdTime=Sat Apr 29 08:54:07 CST 2017, time=2017-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191582, encodeId=3f2b1915825d, content=感谢梅斯医学一直提供这么专业这么有价值的内容, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Fri Apr 28 22:26:46 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191343, encodeId=9d7519134304, content=学习了,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Fri Apr 28 07:41:37 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191092, encodeId=98061910927a, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Thu Apr 27 13:12:27 CST 2017, time=2017-04-27, status=1, ipAttribution=)]
    2017-04-28 虈亣靌

    感谢梅斯医学一直提供这么专业这么有价值的内容

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=191738, encodeId=4d6c191e389b, content=新知识,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160304/IMG56D94856B1B5D6405.jpg, createdBy=27931687771, createdName=一个字-牛, createdTime=Sat Apr 29 08:54:07 CST 2017, time=2017-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191582, encodeId=3f2b1915825d, content=感谢梅斯医学一直提供这么专业这么有价值的内容, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Fri Apr 28 22:26:46 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191343, encodeId=9d7519134304, content=学习了,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Fri Apr 28 07:41:37 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191092, encodeId=98061910927a, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Thu Apr 27 13:12:27 CST 2017, time=2017-04-27, status=1, ipAttribution=)]
    2017-04-28 laoli

    学习了,谢谢分享!

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=191738, encodeId=4d6c191e389b, content=新知识,谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160304/IMG56D94856B1B5D6405.jpg, createdBy=27931687771, createdName=一个字-牛, createdTime=Sat Apr 29 08:54:07 CST 2017, time=2017-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191582, encodeId=3f2b1915825d, content=感谢梅斯医学一直提供这么专业这么有价值的内容, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zMoyicyo6ia9f4IuLQAwZoxD6Hx4ibd5CMcOCYhStY6oDibbKK6O2X8iaicldO5ib8j1iapOIobIKCGiczU2A/0, createdBy=56251941490, createdName=虈亣靌, createdTime=Fri Apr 28 22:26:46 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191343, encodeId=9d7519134304, content=学习了,谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLC1BMzZWdMSPQWuib6BtQGicK8ygGBM6YakpfkRc67soFSuKbZr86enL1KggQZEZbgWSeicJibafmYfQ3AibicIHMwwicmDShfRFvvI38/0, createdBy=272a110164, createdName=laoli, createdTime=Fri Apr 28 07:41:37 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191092, encodeId=98061910927a, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Thu Apr 27 13:12:27 CST 2017, time=2017-04-27, status=1, ipAttribution=)]
    2017-04-27 榄枷檬

    谢谢分享

    0

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