PMID- 28654893 OWN - NLM STAT- MEDLINE DCOM- 20180423 LR - 20181113 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 8 IP - 29 DP - 2017 Jul 18 TI - Aberrant patterns of local and long-range functional connectivity densities in schizophrenia. PG - 48196-48203 LID - 10.18632/oncotarget.18441 [doi] AB - Schizophrenia is a disorder of brain dysconnectivity, and both the connection strength and connection number are disrupted in patients with schizophrenia. The functional connectivity density (FCD) can reflect alterations in the connection number. Alterations in the global FCD (gFCD) in schizophrenia were previously demonstrated; however, alterations in two other indices of the pathological characteristics of the brain, local FCD (lFCD) and long-range FCD (lrFCD), have not been revealed. To investigate lFCD and lrFCD alterations in patients with schizophrenia, 95 patients and 93 matched healthy controls were examined using structural and resting-state functional magnetic resonance imaging scanning. lFCD and lrFCD were measured using FCD mapping, and differences were identified using a two-sample t-test in a voxel-wise manner, with age and gender considered to increase variability. Multiple comparisons were performed using a false discovery rate method with a corrected threshold of P<0.05. Our analysis showed that lFCD was primarily decreased in the postcentral gyrus, right calcarine sulcus, and inferior occipital gyrus lobule, but increased in the bilateral subcortical regions. The differences in lFCD were more pronounced and complicated than those in lrFCD. In summary, in contrast with previous studies that focused on the connection strength, our findings, from the perspective of connection number, indicate that schizophrenia is a disorder of brain dysconnectivity, particularly affecting the local functional connectivity network, and support the hypothesis that schizophrenia is associated with a widespread cortical functional connectivity/activity deficit, with hyper- and/or hypo-connectivity/activity coexisting in some cortical or subcortical regions. FAU - Liu, Chuanxin AU - Liu C AD - Institute of Mental Health, Jining Medical University, Jining 272100, China. FAU - Zhang, Wei AU - Zhang W AD - Department of Psychiatry, Wenzhou Seventh People's Hospital, Wen Zhou 325000, China. FAU - Chen, Guangdong AU - Chen G AD - Department of Psychiatry, Wenzhou Seventh People's Hospital, Wen Zhou 325000, China. FAU - Tian, Hongjun AU - Tian H AD - Department of Psychiatry, Tianjin Anding Hospital, Tianjin 300222, China. FAU - Li, Jie AU - Li J AD - Department of Psychiatry, Tianjin Anding Hospital, Tianjin 300222, China. FAU - Qu, Hongru AU - Qu H AD - Department of Psychiatry, Tianjin Anning Hospital, Tianjin 300300, China. FAU - Cheng, Langlang AU - Cheng L AD - Department of Psychiatry, Wenzhou Seventh People's Hospital, Wen Zhou 325000, China. FAU - Zhu, Jingjing AU - Zhu J AD - Department of Psychiatry, Wenzhou Seventh People's Hospital, Wen Zhou 325000, China. FAU - Zhuo, Chuanjun AU - Zhuo C AD - Institute of Mental Health, Jining Medical University, Jining 272100, China. AD - Department of Psychiatry, Wenzhou Seventh People's Hospital, Wen Zhou 325000, China. AD - Department of Psychiatry, Tianjin Anding Hospital, Tianjin 300222, China. LA - eng PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 SB - IM MH - Adult MH - Brain/physiopathology MH - Case-Control Studies MH - Female MH - Humans MH - Image Processing, Computer-Assisted MH - Magnetic Resonance Imaging/methods MH - Male MH - Schizophrenia/*diagnosis/drug therapy MH - *Schizophrenic Psychology MH - Young Adult PMC - PMC5564638 OTO - NOTNLM OT - functional connectivity density OT - magnetic resonance imaging OT - schizophrenia COIS- CONFLICTS OF INTEREST There are no conflicts of interest. EDAT- 2017/06/28 06:00 MHDA- 2018/04/24 06:00 PMCR- 2017/07/18 CRDT- 2017/06/28 06:00 PHST- 2017/01/28 00:00 [received] PHST- 2017/05/06 00:00 [accepted] PHST- 2017/06/28 06:00 [pubmed] PHST- 2018/04/24 06:00 [medline] PHST- 2017/06/28 06:00 [entrez] PHST- 2017/07/18 00:00 [pmc-release] AID - 18441 [pii] AID - 10.18632/oncotarget.18441 [doi] PST - ppublish SO - Oncotarget. 2017 Jul 18;8(29):48196-48203. doi: 10.18632/oncotarget.18441.