HBP:机器学习使用高阶功能连接可以区伴有或不伴有认知障碍的2型糖尿病与健康人群

2021-07-19 MedSci原创 MedSci原创

跨大规模脑内网络的dFC存在鉴别同步性,可以将T2DM-CI(和T2DM-noCI)与HC区分开来。

2糖尿病(T2DM)与认知障碍相关,并可能进展为痴呆。然而,对T2DM相关性痴呆的脑功能机制仍知之甚少。近年来的静息状态功能性磁共振成像功能连接性(FC)研究证明了其在T2DM合并认知功能损害(T2DM-CI)研究中的潜在价值。然而,由于敏感性较低,他们主要采用单因素统计分析,不适于揭示T2DM-CI中FC“模式”的改变。

近期,Human Brain Mapping 杂志发表文章提出利用高阶FC来揭示T2DM-CI中的异常连接模式,并采用多元的、基于机器学习的策略。

为了更好地了解T2DM引起的认知功能损害,该研究对23例T2DM-CI和27例T2DM-noCI患者以及50例健康对照(HCs)进行了研究,研究了T2DM-CI和T2DM无认知功能损害(T2DM-noCI)之间的这种模式是否不同。首先基于多个脑区对之间的动态FC时间序列的时间同步建立大规模高阶脑网络,然后利用这些信息从匹配的HC中基于支持向量机分类T2DM-CI(以及T2DM-noCI)。

基于动力学的高阶功能连接(dHOFC)网络构建框架及2型糖尿病伴认知功能障碍(T2DM-CI)与健康对照组(HC)的网络分类。

T2DM-CI与HC以及T2DM-noCI与HC的区分表现

左面板显示了根据选择频率(95.83%)从2型糖尿病伴认知功能障碍(T2DM-CI)和健康对照(HC)之间的分类中选择的前两个基于区分动力学的高阶功能连接(dHOFC)节点。

基于动力学的高阶功能连接性(dHOFC)特征的散点图[(a)和(b)分别表示dHOFC节点1和节点2的局部聚类系数,与2型糖尿病合并认知损害(T2DM-CI)组蒙特利尔认知评估(MoCA)得分相比较。

左面板显示从无认知障碍的2型糖尿病(T2DM-noCI)和健康对照(HC)的分类中,根据选择频率(90.38%)选择的第1个区分性动态高阶功能连接(dHOFC)节点。

该研究模型在T2DM-CI与HC的鉴别诊断中获得了79.17%的准确率,但在T2DM-noCI与HC的分类诊断中仅获得了59.62%的准确率。T2DM-CI与HC相比存在异常的高阶FC模式,这与T2DM-NOCI不同。

该研究是首次基于脑功能网络对T2DM-CI和HC以及T2DM-noCI和HC进行分类研究。使用脑dHOFC网络来提高检测疾病引起的脑功能变化的灵敏度。结果表明,跨大规模脑内网络的dFC存在鉴别同步性,可以将T2DM-CI(和T2DM-noCI)与HC区分开来。通过构建dHOFC网络,并借助机器学习进行基于网络的分类,首次揭示了与T2DM所致认知损害相关的几种共变异dFC,其中一些dFC与MoCA和AVLT-IR评估的患者认知能力显著相关。基于dHOFC的T2DM-noCI与HC的分类不如T2DM-CI与HC的分类,且dHOFC特征不同,提示T2DM-CI涉及严重的脑功能障碍,可能不同于T2DM-noCI。该研究提供了有价值的信息,可能有助于理解T2DM相关的中枢神经系统的改变。

该研究表明,T2DM引起的认知功能损害可能存在广泛的功能连接改变。这一结果有助于更好地理解T2DM引起的中枢神经系统的变化。

原文出处

Classification of type 2 diabetes mellitus with or without cognitive impairment from healthy controls using high-order functional connectivity. https://doi.org/10.1002/hbm.25575

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    2021-07-19 misszhang

    谢谢MedSci提供最新的资讯

    0

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    2021-07-19 ms4000001441347419

    学习了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1911146, encodeId=4ea6191114691, content=<a href='/topic/show?id=8c0d2e73196' target=_blank style='color:#2F92EE;'>#健康人#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27731, encryptionId=8c0d2e73196, topicName=健康人)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55f6293, createdName=lishizhe, createdTime=Mon Sep 20 04:44:47 CST 2021, time=2021-09-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1445787, encodeId=25271445e8797, content=<a href='/topic/show?id=a343329413c' target=_blank style='color:#2F92EE;'>#功能连接#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32941, encryptionId=a343329413c, topicName=功能连接)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTJciayulicXZn6VO5hXfUv98oceXTHpMayS6T4PrSPsgsN6Jt2kCyAo9tAQwf1jCiaw4y8lxZFBA5nJg/132, createdBy=5ddb5182578, createdName=showtest, createdTime=Wed Jul 21 08:44:47 CST 2021, time=2021-07-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1583314, encodeId=468315833147a, content=<a href='/topic/show?id=f6e1611840d' target=_blank style='color:#2F92EE;'>#机器#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61184, encryptionId=f6e1611840d, topicName=机器)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=13dc16973127, createdName=ms6279672939590805, createdTime=Wed Jul 21 08:44:47 CST 2021, time=2021-07-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043695, encodeId=8691104369539, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Mon Jul 19 20:44:47 CST 2021, time=2021-07-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1000933, encodeId=613e1000933b6, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a2b85466921, createdName=ms4000001441347419, createdTime=Mon Jul 19 18:43:06 CST 2021, time=2021-07-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1000928, encodeId=6288100092832, content=加油, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e0e45552370, createdName=张风妹, createdTime=Mon Jul 19 18:28:34 CST 2021, time=2021-07-19, status=1, ipAttribution=)]
    2021-07-19 张风妹

    加油

    0

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