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- W1989910619 abstract "Minimal hepatic encephalopathy (MHE) is associated with changes in functional connectivity. To investigate the patterns of modular changes of the functional connectivity in the progression of MHE, resting-state functional magnetic resonance imaging was acquired in 24 MHE patients, 31 cirrhotic patients without minimal hepatic encephalopathy (non-HE), and 38 healthy controls. Newman’s metric, the modularity<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mrow><mml:mi>Q</mml:mi></mml:mrow></mml:math>value, was maximized and compared in three groups. Topological roles with the progression of MHE were illustrated by intra- and intermodular connectivity changes. Results showed that the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mrow><mml:mi>Q</mml:mi></mml:mrow></mml:math>value of MHE patients was significantly lower than that of controls<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mrow><mml:mfenced separators=|><mml:mrow><mml:mi>P</mml:mi><mml:mo><</mml:mo><mml:mn>0.01</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:math>rather than that of non-HE patients<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M4><mml:mrow><mml:mfenced separators=|><mml:mrow><mml:mi>P</mml:mi><mml:mo>></mml:mo><mml:mn>0.05</mml:mn></mml:mrow></mml:mfenced></mml:mrow></mml:math>, which was correlated with neuropsychological test scores rather than the ammonia level and Child-Pugh score. Less intrasubcortical connections and more isolated subcortical modules were found with the progression of MHE. The non-HE patients had the same numbers of connect nodes as controls and had more hubs compared with MHE patients and healthy controls. Our findings supported that both intra- and intermodular connectivity, especially those related to subcortical regions, were continuously impaired in cirrhotic patients. The adjustments of hubs and connector nodes in non-HE patients could be a compensation for the decreased modularity in their functional connectivity networks." @default.
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- W1989910619 date "2014-01-01" @default.
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- W1989910619 title "Altered Modular Organization of Functional Connectivity Networks in Cirrhotic Patients without Overt Hepatic Encephalopathy" @default.
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- W1989910619 doi "https://doi.org/10.1155/2014/727452" @default.
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