中华放射学杂志
中華放射學雜誌
중화방사학잡지
Chinese Journal of Radiology
2015年
7期
507-510
,共4页
李永斌%王亚蓉%李玮%李强%张东升%朱佳%严雪娇%陈佳杰%王玮
李永斌%王亞蓉%李瑋%李彊%張東升%硃佳%嚴雪嬌%陳佳傑%王瑋
리영빈%왕아용%리위%리강%장동승%주가%엄설교%진가걸%왕위
海洛因依赖%磁共振成像
海洛因依賴%磁共振成像
해락인의뢰%자공진성상
Heroin dependence%Magnetic resonance imaging
目的:探讨单纯海洛因成瘾者(HA)大脑奖赏环路功能连接特点及其在成瘾中的作用。方法收集26例长期HA(HA组)和25名人口学特征相匹配但无海洛因吸食的健康志愿者(对照组)接受fMRI扫描,使用静息态fMRI数据处理助手(DPARSF)基于MATLAB2009a平台进行数据预处理,然后采用静息态fMRI数据分析工具包(REST),以双侧伏隔核为ROI,与全脑其他所有体素的时间序列做相关分析,使用单样本t检验和两样本t检验做组内和组间分析;将HA组功能连接强度值与海洛因使用总时间及总剂量做偏相关分析。结果 HA组与双侧伏隔核正相关的脑区包括前额叶、背侧纹状体、丘脑及桥脑,负相关的脑区包括颞叶,部分顶、枕叶,部分背外侧前额叶及小脑;对照组与双侧伏隔核正相关的脑区包括前额叶、背侧纹状体、丘脑、海马、桥脑,负相关脑区包括双侧枕叶、部分背外侧前额叶及小脑(单个体素P<0.005,体素值>26)。与对照组相比,HA组与右侧伏隔核功能连接增强的脑区包括双侧距状回、左枕中回(体素个数分别为31、28、47,t值分别为3.99、3.74、3.74,P值均<0.005),未发现减低的脑区;与左侧伏隔核功能连接增强的脑区包括左梭状回和右楔前叶(体素个数分别为40、26,t值分别为3.77、3.57,P值均<0.005),减弱的脑区包括左背内、外侧前额叶、双背侧前扣带(体素个数为98,t=-4.14,P<0.005);HA组功能连接强度值与海洛因使用时间、剂量之间无相关性(P值均>0.05)。结论海洛因成瘾可能与奖赏环路关键脑区伏隔核和认知控制及视觉空间注意力相关脑区的相互作用异常有关。
目的:探討單純海洛因成癮者(HA)大腦獎賞環路功能連接特點及其在成癮中的作用。方法收集26例長期HA(HA組)和25名人口學特徵相匹配但無海洛因吸食的健康誌願者(對照組)接受fMRI掃描,使用靜息態fMRI數據處理助手(DPARSF)基于MATLAB2009a平檯進行數據預處理,然後採用靜息態fMRI數據分析工具包(REST),以雙側伏隔覈為ROI,與全腦其他所有體素的時間序列做相關分析,使用單樣本t檢驗和兩樣本t檢驗做組內和組間分析;將HA組功能連接彊度值與海洛因使用總時間及總劑量做偏相關分析。結果 HA組與雙側伏隔覈正相關的腦區包括前額葉、揹側紋狀體、丘腦及橋腦,負相關的腦區包括顳葉,部分頂、枕葉,部分揹外側前額葉及小腦;對照組與雙側伏隔覈正相關的腦區包括前額葉、揹側紋狀體、丘腦、海馬、橋腦,負相關腦區包括雙側枕葉、部分揹外側前額葉及小腦(單箇體素P<0.005,體素值>26)。與對照組相比,HA組與右側伏隔覈功能連接增彊的腦區包括雙側距狀迴、左枕中迴(體素箇數分彆為31、28、47,t值分彆為3.99、3.74、3.74,P值均<0.005),未髮現減低的腦區;與左側伏隔覈功能連接增彊的腦區包括左梭狀迴和右楔前葉(體素箇數分彆為40、26,t值分彆為3.77、3.57,P值均<0.005),減弱的腦區包括左揹內、外側前額葉、雙揹側前釦帶(體素箇數為98,t=-4.14,P<0.005);HA組功能連接彊度值與海洛因使用時間、劑量之間無相關性(P值均>0.05)。結論海洛因成癮可能與獎賞環路關鍵腦區伏隔覈和認知控製及視覺空間註意力相關腦區的相互作用異常有關。
목적:탐토단순해락인성은자(HA)대뇌장상배로공능련접특점급기재성은중적작용。방법수집26례장기HA(HA조)화25명인구학특정상필배단무해락인흡식적건강지원자(대조조)접수fMRI소묘,사용정식태fMRI수거처리조수(DPARSF)기우MATLAB2009a평태진행수거예처리,연후채용정식태fMRI수거분석공구포(REST),이쌍측복격핵위ROI,여전뇌기타소유체소적시간서렬주상관분석,사용단양본t검험화량양본t검험주조내화조간분석;장HA조공능련접강도치여해락인사용총시간급총제량주편상관분석。결과 HA조여쌍측복격핵정상관적뇌구포괄전액협、배측문상체、구뇌급교뇌,부상관적뇌구포괄섭협,부분정、침협,부분배외측전액협급소뇌;대조조여쌍측복격핵정상관적뇌구포괄전액협、배측문상체、구뇌、해마、교뇌,부상관뇌구포괄쌍측침협、부분배외측전액협급소뇌(단개체소P<0.005,체소치>26)。여대조조상비,HA조여우측복격핵공능련접증강적뇌구포괄쌍측거상회、좌침중회(체소개수분별위31、28、47,t치분별위3.99、3.74、3.74,P치균<0.005),미발현감저적뇌구;여좌측복격핵공능련접증강적뇌구포괄좌사상회화우설전협(체소개수분별위40、26,t치분별위3.77、3.57,P치균<0.005),감약적뇌구포괄좌배내、외측전액협、쌍배측전구대(체소개수위98,t=-4.14,P<0.005);HA조공능련접강도치여해락인사용시간、제량지간무상관성(P치균>0.05)。결론해락인성은가능여장상배로관건뇌구복격핵화인지공제급시각공간주의력상관뇌구적상호작용이상유관。
Objective To explore the changes and effect of functional connectivity(FC) of reward network in chronic heroin addicts(HA) using resting-state fMRl(rs-fMRI). Methods rs-fMRI was performed on 26 chronic heroin addicts(HA group) and 25 matched normal volunteers(control group).The rs-fMRI data were proceeded by usingrs-fMRI(DPARSF) software on Matlab 2009a. Bilateral nucleus accumbens(Nacc) were set as ROIs. Then the mean time series of ROI were compared with other voxels within the brain by the rs-fMRI data analysis toolkit(REST). Intra-and inter-group analysis was performed with single sample and two sample t test respectively.The association of intensity of FC in brain regions and the duration/doses of heroin consumption was investigated. Results In HA group, positiveresting-state FC compared with the ROIs was found in frontal gyms, dorsal striatum, thalamus and pons, while temporal lobe, negative found in part of parietal cortex and occipital cortex, part of dorsal lateral prefrontal cortex and cerebellum. Within control group, positive FC compared with the ROIs was found in frontal gyms, dorsal striatum, thalamus, hippocampal gyrus and pons, occipital cortex, negative FC with ROIs found in part of dorsal lateral prefrontal cortex and cerebellum(P<0.005, voxels>26). Compared with the control group,the FC between the right Nacc and the bilateral calcarinegyrus, left middle occipital gyrus(voxel numbe r=31,28,47;t=3.99, 3.74,3.74;and P<0.005,respectively)were significantly increased in the HA group.The FC between the left Nacc and left fusiform gyrus and right precuneus(voxel number=40,26;t=3.77,3.57;and P<0.005, respectively)were significantly increased, while between the left Nacc and left dorsal medial/lateral prefrontal cortex and bilateral dorsal anterior cingulate(voxel number=98;t=-4.14;and P<0.005)were significantly decreased in the HA group. There was no corrlation between the abnormal FC and the duration/doses of heroin consumption in HA group(P>0.05). Conclusion The abnormal interaction between Nacc and the regions involved in cognitive control and visual spatial attention may contribute to the heroin addiction.