PMID- 29608677 OWN - NLM STAT- MEDLINE DCOM- 20200522 LR - 20200522 IS - 1460-2199 (Electronic) IS - 1047-3211 (Print) IS - 1047-3211 (Linking) VI - 29 IP - 4 DP - 2019 Apr 1 TI - Regional GABA Concentrations Modulate Inter-network Resting-state Functional Connectivity. PG - 1607-1618 LID - 10.1093/cercor/bhy059 [doi] AB - Coordinated activity within and differential activity between large-scale neuronal networks such as the default mode network (DMN) and the control network (CN) is a critical feature of brain organization. The CN usually exhibits activations in response to cognitive tasks while the DMN shows deactivations; in addition, activity between the two networks is anti-correlated at rest. To address this issue, we used functional MRI to measure whole-brain BOLD signal during resting-state and task-evoked conditions, and MR spectroscopy (MRS) to quantify GABA and glutamate concentrations, in nodes within the DMN and CN (MPFC and DLPFC, respectively) in 19 healthy individuals at 3 Tesla. We found that GABA concentrations in the MPFC were significantly associated with DMN deactivation during a working memory task and with anti-correlation between DMN and CN at rest and during task performance, while GABA concentrations in the DLPFC weakly modulated DMN-CN anti-correlation in the opposite direction. Highlighting specificity, glutamate played a less significant role related to brain activity. These findings indicate that GABA in the MPFC is potentially involved in orchestrating between-network brain activity at rest and during task performance. CI - (c) The Author(s) 2018. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com. FAU - Chen, Xi AU - Chen X AD - McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA. AD - Psychotic Disorders Division, McLean Hospital, Harvard Medical School, Belmont, MA, USA. FAU - Fan, Xiaoying AU - Fan X AD - Psychotic Disorders Division, McLean Hospital, Harvard Medical School, Belmont, MA, USA. FAU - Hu, Yuzheng AU - Hu Y AD - Neuroimaging Research Branch, National Institute on Drug Abuse, Intramural Research Programs, National Institute of Health, Baltimore, MD, USA. FAU - Zuo, Chun AU - Zuo C AD - McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA. FAU - Whitfield-Gabrieli, Susan AU - Whitfield-Gabrieli S AD - McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA. FAU - Holt, Daphne AU - Holt D AD - Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA. FAU - Gong, Qiyong AU - Gong Q AD - Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China. FAU - Yang, Yihong AU - Yang Y AD - Neuroimaging Research Branch, National Institute on Drug Abuse, Intramural Research Programs, National Institute of Health, Baltimore, MD, USA. FAU - Pizzagalli, Diego A AU - Pizzagalli DA AD - McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA. AD - Center For Depression, Anxiety and Stress Research, McLean Hospital, Harvard Medical School, Belmont, MA, USA. FAU - Du, Fei AU - Du F AD - McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA. AD - Psychotic Disorders Division, McLean Hospital, Harvard Medical School, Belmont, MA, USA. FAU - Ongur, Dost AU - Ongur D AD - Psychotic Disorders Division, McLean Hospital, Harvard Medical School, Belmont, MA, USA. LA - eng GR - K24 MH104449/MH/NIMH NIH HHS/United States GR - R01 MH094594/MH/NIMH NIH HHS/United States GR - R21 MH114020/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cereb Cortex JT - Cerebral cortex (New York, N.Y. : 1991) JID - 9110718 RN - 3KX376GY7L (Glutamic Acid) RN - 56-12-2 (gamma-Aminobutyric Acid) SB - IM MH - Adult MH - Brain/metabolism/*physiology MH - Brain Mapping MH - Female MH - Glutamic Acid/metabolism/physiology MH - Humans MH - Magnetic Resonance Imaging MH - Magnetic Resonance Spectroscopy MH - Male MH - Memory, Short-Term/physiology MH - Neural Pathways/metabolism/*physiology MH - Young Adult MH - gamma-Aminobutyric Acid/metabolism/*physiology PMC - PMC6418388 OTO - NOTNLM OT - GABA OT - anti-correlation OT - default mode network OT - fMRI OT - glutamate EDAT- 2018/04/03 06:00 MHDA- 2020/05/23 06:00 PMCR- 2020/04/01 CRDT- 2018/04/03 06:00 PHST- 2017/09/07 00:00 [received] PHST- 2018/01/30 00:00 [revised] PHST- 2018/04/03 06:00 [pubmed] PHST- 2020/05/23 06:00 [medline] PHST- 2018/04/03 06:00 [entrez] PHST- 2020/04/01 00:00 [pmc-release] AID - 4955774 [pii] AID - bhy059 [pii] AID - 10.1093/cercor/bhy059 [doi] PST - ppublish SO - Cereb Cortex. 2019 Apr 1;29(4):1607-1618. doi: 10.1093/cercor/bhy059.