PMID- 38423165 OWN - NLM STAT- MEDLINE DCOM- 20240408 LR - 20240408 IS - 1873-7544 (Electronic) IS - 0306-4522 (Linking) VI - 544 DP - 2024 Apr 19 TI - Neurometabolic and Brain Functional Alterations Associated with Cognitive Impairment in Patients with Myasthenia Gravis: A Combined (1)H-MRS and fMRI Study. PG - 12-27 LID - S0306-4522(24)00085-X [pii] LID - 10.1016/j.neuroscience.2024.02.021 [doi] AB - Whether patients with myasthenia gravis (MG) exhibit cognitive impairment is controversial. Also the underlying mechanisms are unknown. We aimed to investigate alterations in cognitive function, neurometabolite levels, and brain function in patients with MG and to explore the associations between abnormal regional brain functional activity, neurometabolite concentrations in the MPFC and left thalamus, and cognitive activity in patients with MG. Neuropsychological tests, proton magnetic resonance spectroscopy, and resting-state functional magnetic resonance imaging were performed on 41 patients with MG and 45 race-, sex-, age-, and education-matched healthy controls (HCs). The results suggest that MG is accompanied by cognitive decline, as indicated by global cognitive function, visual-spatial function, language, memory, abnormalities in regional brain functional activity, and neurometabolite alterations (including GABA, NAA, and Cho) in the medial prefrontal cortex (MPFC) and left thalamus. Cognitive impairment in patients with MG may be related to abnormal regional brain functional activity and changes in neurometabolites, and regional brain functional activity may be modulated by specific neurometabolites. CI - Copyright (c) 2024 IBRO. Published by Elsevier Inc. All rights reserved. FAU - Zhou, Xiaoling AU - Zhou X AD - Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China; Department of Neurology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, China. FAU - Yang, Yang AU - Yang Y AD - Department of Radiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, China. FAU - Zhu, Feng AU - Zhu F AD - Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Chen, Xiang AU - Chen X AD - Department of Radiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Zhu, Yunfei AU - Zhu Y AD - Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Gui, Tiantian AU - Gui T AD - Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Li, Yonggang AU - Li Y AD - Department of Radiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. Electronic address: liyonggang224@163.com. FAU - Xue, Qun AU - Xue Q AD - Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. Electronic address: qxue_sz@163.com. LA - eng PT - Journal Article DEP - 20240228 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 SB - IM MH - Humans MH - Magnetic Resonance Imaging/methods MH - Brain/diagnostic imaging MH - *Cognitive Dysfunction/diagnostic imaging MH - Proton Magnetic Resonance Spectroscopy/methods MH - *Myasthenia Gravis/complications/diagnostic imaging OTO - NOTNLM OT - cognitive impairment OT - myasthenia gravis OT - proton magnetic resonance spectroscopy OT - resting-state functional magnetic resonance imaging EDAT- 2024/03/01 01:22 MHDA- 2024/04/08 06:42 CRDT- 2024/02/29 19:14 PHST- 2023/08/04 00:00 [received] PHST- 2024/01/04 00:00 [revised] PHST- 2024/02/20 00:00 [accepted] PHST- 2024/04/08 06:42 [medline] PHST- 2024/03/01 01:22 [pubmed] PHST- 2024/02/29 19:14 [entrez] AID - S0306-4522(24)00085-X [pii] AID - 10.1016/j.neuroscience.2024.02.021 [doi] PST - ppublish SO - Neuroscience. 2024 Apr 19;544:12-27. doi: 10.1016/j.neuroscience.2024.02.021. Epub 2024 Feb 28.