PeiRong Xiao1, ZhenYu Dai2, JianGuo Zhong1, YingLing Zhu1, HaiCun Shi3, PingLei Pan4. 1. Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China. 2. Department of Radiology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China. 3. Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China. Electronic address: yc3yhcshi@gmail.com. 4. Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China. Electronic address: panpinglei@163.com.
Abstract
BACKGROUND: Many studies have revealed a widespread pattern of gray matter (GM) atrophy by using voxel-based morphometry (VBM) studies involving the pathophysiology of alcohol dependence. However, the spatial localization of GM abnormalities reported in previous studies is heterogeneous. Here, we aimed to investigate the concurrence across VBM studies to help clarify the structural abnormalities underpinning this condition. METHODS: A systematic search from January, 2000 to November, 2014 was performed to identify VBM studies that compared alcohol dependent patients and healthy controls. A quantitative meta-analysis of whole-brain VBM studies to estimate regional GM abnormalities in alcohol dependent patients was performed using the Anisotropic Effect Size version of the Signed Differential Mapping (AES-SDM) software package. RESULTS: Nine studies consisting of 296 alcohol dependent patients and 359 healthy controls were included in the present meta-analyses. Regional GM atrophy in alcohol dependent patients was found in the prefrontal cortex (including the anterior cingulate cortex), the dorsal striatum/insula, and the posterior cingulate cortex consistently across studies. The results remained largely unchanged in the following jackknife sensitivity analyses. CONCLUSIONS: By conducting the first comprehensive meta-analysis of VBM studies, we identified consistent regional GM atrophy particularly within several neurofunctional networks associated with alcohol dependence. Our study demonstrated a characteristic pattern of GM abnormalities and provided further insights into understanding the underlying nature of alcohol dependence.
BACKGROUND: Many studies have revealed a widespread pattern of gray matter (GM) atrophy by using voxel-based morphometry (VBM) studies involving the pathophysiology of alcohol dependence. However, the spatial localization of GM abnormalities reported in previous studies is heterogeneous. Here, we aimed to investigate the concurrence across VBM studies to help clarify the structural abnormalities underpinning this condition. METHODS: A systematic search from January, 2000 to November, 2014 was performed to identify VBM studies that compared alcohol dependent patients and healthy controls. A quantitative meta-analysis of whole-brain VBM studies to estimate regional GM abnormalities in alcohol dependent patients was performed using the Anisotropic Effect Size version of the Signed Differential Mapping (AES-SDM) software package. RESULTS: Nine studies consisting of 296 alcohol dependent patients and 359 healthy controls were included in the present meta-analyses. Regional GM atrophy in alcohol dependent patients was found in the prefrontal cortex (including the anterior cingulate cortex), the dorsal striatum/insula, and the posterior cingulate cortex consistently across studies. The results remained largely unchanged in the following jackknife sensitivity analyses. CONCLUSIONS: By conducting the first comprehensive meta-analysis of VBM studies, we identified consistent regional GM atrophy particularly within several neurofunctional networks associated with alcohol dependence. Our study demonstrated a characteristic pattern of GM abnormalities and provided further insights into understanding the underlying nature of alcohol dependence.
Authors: Margaret Quinn; Maureen McHugo; Kristan Armstrong; Neil Woodward; Jennifer Blackford; Stephan Heckers Journal: Psychiatry Res Neuroimaging Date: 2018-08-03 Impact factor: 2.376
Authors: Yukai Zou; Donna E Murray; Timothy C Durazzo; Thomas P Schmidt; Troy A Murray; Dieter J Meyerhoff Journal: Psychiatry Res Neuroimaging Date: 2018-09-18 Impact factor: 2.376
Authors: A Uhlmann; B Bandelow; D J Stein; S Bloch; K R Engel; U Havemann-Reinecke; Dirk Wedekind Journal: Eur Arch Psychiatry Clin Neurosci Date: 2018-01-25 Impact factor: 5.270