目的探讨无先兆偏头痛(migraine without aura,MwoA)患者发作间期体素-镜像同伦功能连接(voxel-mirrored homotopic connectivity,VMHC)是否受损,以及针刺治疗后VMHC的变化情况。材料和方法54名MwoA患者和44名匹配的健康对照者被纳入研...目的探讨无先兆偏头痛(migraine without aura,MwoA)患者发作间期体素-镜像同伦功能连接(voxel-mirrored homotopic connectivity,VMHC)是否受损,以及针刺治疗后VMHC的变化情况。材料和方法54名MwoA患者和44名匹配的健康对照者被纳入研究。MwoA患者接受了为期4周的针刺治疗,而健康对照组没有任何治疗。收集所有受试者的功能磁共振成像数据和临床资料,比较患者与健康对照组基线、患者针刺治疗前后VMHC的差异。最后探讨针刺调节的脑区VMHC变化与临床评分改善的相关性。结果与对照组相比,MwoA患者双侧小脑Ⅷ区、楔叶和中央后回的VMHC明显降低(体素水平P<0.001,组水平P<0.05)。针刺后,MwoA患者的临床指标明显改善,静息态功能磁共振成像显示双侧楔叶减低的VMHC明显增强(体素水平P<0.001,组水平P<0.05)。双侧楔叶VMHC的增强与焦虑自评量表评分改变呈正相关(r=0.291,P<0.05)。结论双侧小脑、视觉皮层和初级躯体感觉皮层的VMHC受损可能参与了偏头痛发作间期的中枢机制。针刺治疗偏头痛具有显著的临床疗效,并可增强双侧楔叶减弱的VMHC。展开更多
The purpose of this study was to explore the differences in interhemispheric functional connectivity in patients with Alzheimer’s disease(AD) and amnestic mild cognitive impairment(aMCI) based on a triple network mod...The purpose of this study was to explore the differences in interhemispheric functional connectivity in patients with Alzheimer’s disease(AD) and amnestic mild cognitive impairment(aMCI) based on a triple network model consisting of the default mode network(DMN), salience network(SN), and executive control network(ECN). The technique of voxel-mirrored homotopic connectivity(VMHC) analysis was applied to explore the aberrant connectivity of all patients. The results showed that:(1) the statistically significant connections of interhemispheric brain regions included DMN-related brain regions(i.e. precuneus, calcarine, fusiform, cuneus, lingual gyrus, temporal inferior gyrus, and hippocampus), SN-related brain regions(i.e. frontoinsular cortex), and ECN-related brain regions(i.e. frontal middle gyrus and frontal inferior);(2) the precuneus and frontal middle gyrus in the AD group exhibited lower VMHC values than those in the aMCI and healthy control(HC) groups, but no significant difference was observed between the a MCI and HC groups; and(3) significant correlations were found between peak VMHC results from the precuneus and Mini Mental State Examination(MMSE) and Montreal Cognitive Scale(MOCA) scores and their factor scores in the AD, a MCI, and AD plus aMCI groups, and between the results from the frontal middle gyrus and MOCA factor scores in the a MCI group. These findings indicated that impaired interhemispheric functional connectivity was observed in AD and could be a sensitive neuroimaging biomarker for AD. More specifically, the DMN was inhibited, while the SN and ECN were excited. VMHC results were correlated with MMSE and MOCA scores, highlighting that VMHC could be a sensitive neuroimaging biomarker for AD and the progression from aMCI to AD.展开更多
文摘目的探讨无先兆偏头痛(migraine without aura,MwoA)患者发作间期体素-镜像同伦功能连接(voxel-mirrored homotopic connectivity,VMHC)是否受损,以及针刺治疗后VMHC的变化情况。材料和方法54名MwoA患者和44名匹配的健康对照者被纳入研究。MwoA患者接受了为期4周的针刺治疗,而健康对照组没有任何治疗。收集所有受试者的功能磁共振成像数据和临床资料,比较患者与健康对照组基线、患者针刺治疗前后VMHC的差异。最后探讨针刺调节的脑区VMHC变化与临床评分改善的相关性。结果与对照组相比,MwoA患者双侧小脑Ⅷ区、楔叶和中央后回的VMHC明显降低(体素水平P<0.001,组水平P<0.05)。针刺后,MwoA患者的临床指标明显改善,静息态功能磁共振成像显示双侧楔叶减低的VMHC明显增强(体素水平P<0.001,组水平P<0.05)。双侧楔叶VMHC的增强与焦虑自评量表评分改变呈正相关(r=0.291,P<0.05)。结论双侧小脑、视觉皮层和初级躯体感觉皮层的VMHC受损可能参与了偏头痛发作间期的中枢机制。针刺治疗偏头痛具有显著的临床疗效,并可增强双侧楔叶减弱的VMHC。
基金Project supported by the National Natural Science Foundation of China(No.81771158)the Science Foundation of the Health Commission of Zhejiang Province(Nos.2016147373 and 2019321345),China
文摘The purpose of this study was to explore the differences in interhemispheric functional connectivity in patients with Alzheimer’s disease(AD) and amnestic mild cognitive impairment(aMCI) based on a triple network model consisting of the default mode network(DMN), salience network(SN), and executive control network(ECN). The technique of voxel-mirrored homotopic connectivity(VMHC) analysis was applied to explore the aberrant connectivity of all patients. The results showed that:(1) the statistically significant connections of interhemispheric brain regions included DMN-related brain regions(i.e. precuneus, calcarine, fusiform, cuneus, lingual gyrus, temporal inferior gyrus, and hippocampus), SN-related brain regions(i.e. frontoinsular cortex), and ECN-related brain regions(i.e. frontal middle gyrus and frontal inferior);(2) the precuneus and frontal middle gyrus in the AD group exhibited lower VMHC values than those in the aMCI and healthy control(HC) groups, but no significant difference was observed between the a MCI and HC groups; and(3) significant correlations were found between peak VMHC results from the precuneus and Mini Mental State Examination(MMSE) and Montreal Cognitive Scale(MOCA) scores and their factor scores in the AD, a MCI, and AD plus aMCI groups, and between the results from the frontal middle gyrus and MOCA factor scores in the a MCI group. These findings indicated that impaired interhemispheric functional connectivity was observed in AD and could be a sensitive neuroimaging biomarker for AD. More specifically, the DMN was inhibited, while the SN and ECN were excited. VMHC results were correlated with MMSE and MOCA scores, highlighting that VMHC could be a sensitive neuroimaging biomarker for AD and the progression from aMCI to AD.
