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学科主题: 精神卫生
题名:
Compromised small-world efficiency of structural brain networks in schizophrenic patients and their unaffected parents
作者: Yan, Hao1,2,3; Tian, Lin1,2,3; Wang, Qifeng4; Zhao, Qiang5; Yue, Weihua1,2,3; Yan, Jun1,2,3; Liu, Bing4; Zhang, Dai1,2,3,6,7
关键词: network analysis ; diffusion tensor imaging ; tractography ; white matter ; small-world architecture
刊名: NEUROSCIENCE BULLETIN
发表日期: 2015-06-01
DOI: 10.1007/s12264-014-1518-0
卷: 31, 期:3, 页:275-287
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Neurosciences
研究领域[WOS]: Neurosciences & Neurology
关键词[WOS]: GRAPH-THEORETICAL ANALYSIS ; HUMAN CEREBRAL-CORTEX ; WHITE-MATTER ; FUNCTIONAL NETWORKS ; CORTICAL NETWORKS ; FIBER INTEGRITY ; GENETIC RISK ; CONNECTIVITY ; RELATIVES ; SIBLINGS
英文摘要:

Several lines of evidence suggest that efficient information integration between brain regions is disrupted in schizophrenia. Abnormalities in white matter tracts that interconnect brain regions may be directly relevant to this pathophysiological process. As a complex mental disorder with high heritability, mapping abnormalities in patients and their first-degree relatives may help to disentangle the risk factors for schizophrenia. We established a weighted network model of white matter connections using diffusion tensor imaging in 25 nuclear families with schizophrenic probands (19 patients and 41 unaffected parents) and two unrelated groups of normal controls (24 controls matched with patients and 26 controls matched with relatives). The patient group showed lower global efficiency and local efficiency. The decreased regional efficiency was localized in hubs such as the bilateral frontal cortices, bilateral anterior cingulate cortices, and left precuneus. The global efficiency was negatively correlated with cognition scores derived from a 5-factor model of schizophrenic psychopathology. We also found that unaffected parents displayed decreased regional efficiency in the right temporal cortices, left supplementary motor area, left superior temporal pole, and left thalamus. The global efficiency tended to be lower in unaffected parents. Our data suggest that (1) the global efficiency loss in neuroanatomical networks may be associated with the cognitive disturbances in schizophrenia; and (2) genetic vulnerability to schizophrenia may influence the anatomical organization of an individual′s brain networks.

语种: 英语
所属项目编号: 2011CB707805 ; 81370032 ; 91232305 ; 81361120395 ; 91432304 ; 2010DFB30820
项目资助者: National Basic Research Program of China ; National Natural Science Foundation of China ; International Science &amp ; Technology Cooperation Program of China
WOS记录号: WOS:000355619700001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66696
Appears in Collections:北京大学精神卫生研究所_期刊论文

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作者单位: 1.Peking Univ, Hosp 6, Beijing 100191, Peoples R China
2.Peking Univ, Inst Mental Hlth, Beijing 100191, Peoples R China
3.Peking Univ, Minist Hlth, Key Lab Mental Hlth, Beijing 100191, Peoples R China
4.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, LIAMA Ctr Computat Med, Beijing 100190, Peoples R China
5.Peking Univ, Hosp 3, Dept Radiol, Beijing 100191, Peoples R China
6.Peking Tsinghua Ctr Life Sci, Beijing 100871, Peoples R China
7.Peking Univ, PKU IDG McGovern Inst Brain Res, Beijing 100871, Peoples R China

Recommended Citation:
Yan, Hao,Tian, Lin,Wang, Qifeng,et al. Compromised small-world efficiency of structural brain networks in schizophrenic patients and their unaffected parents[J]. NEUROSCIENCE BULLETIN,2015,31(3):275-287.
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