PMID- 30258091 OWN - NLM STAT- MEDLINE DCOM- 20191024 LR - 20191115 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 8 IP - 1 DP - 2018 Sep 26 TI - Assessing cortical plasticity after spinal cord injury by using resting-state functional magnetic resonance imaging in awake adult mice. PG - 14406 LID - 10.1038/s41598-018-32766-8 [doi] LID - 14406 AB - Neural connectivity has recently been shown to be altered after spinal cord injury (SCI) not only in the spinal cord but also in the brain. However, to date, no studies have analyzed the functional alterations after SCI in various areas of the cerebral cortex over time. To examine the plasticity of the neural connectivity in the brain after SCI, we performed resting-state functional magnetic resonance imaging (rs-fMRI) in awake adult mice pre- and post-SCI. After a complete thoracic SCI, the functional connectivity between the primary motor (MOp) and primary sensory (SSp) areas was significantly decreased during the chronic phase. In contrast, the connectivity between the MOp and motivation area was increased. Thus, impairments in sensory and motor connections after SCI led to a time-dependent compensatory upregulation of "motor functional motivation". Moreover, the functional connectivity between the SSp and pain-related areas, such as the caudoputamen (CP) and the anterior cingulate area (ACA), was strengthened during the chronic phase, thus suggesting that rs-fMRI can indicate the presence of neuropathic pain after SCI. Therefore, rs-fMRI is a useful tool for revealing the pathological changes that occur in the brain after SCI. FAU - Matsubayashi, Kohei AU - Matsubayashi K AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. AD - Department of Physiology, Keio University School of Medicine, Tokyo, Japan. FAU - Nagoshi, Narihito AU - Nagoshi N AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. FAU - Komaki, Yuji AU - Komaki Y AUID- ORCID: 0000-0002-9793-0938 AD - Department of Physiology, Keio University School of Medicine, Tokyo, Japan. AD - Central Institute for Experimental Animals, Kawasaki, Japan. FAU - Kojima, Kota AU - Kojima K AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. FAU - Shinozaki, Munehisa AU - Shinozaki M AD - Department of Physiology, Keio University School of Medicine, Tokyo, Japan. FAU - Tsuji, Osahiko AU - Tsuji O AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. FAU - Iwanami, Akio AU - Iwanami A AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. FAU - Ishihara, Ryosuke AU - Ishihara R AD - Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan. FAU - Takata, Norio AU - Takata N AD - Central Institute for Experimental Animals, Kawasaki, Japan. AD - Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan. FAU - Matsumoto, Morio AU - Matsumoto M AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. FAU - Mimura, Masaru AU - Mimura M AD - Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan. FAU - Okano, Hideyuki AU - Okano H AD - Department of Physiology, Keio University School of Medicine, Tokyo, Japan. hidokano@a2.keio.jp. AD - Laboratory for Marmoset Neural Architecture, RIKEN Center for Brain Science, Wako-shi, Saitama, 351-0198, Japan. hidokano@a2.keio.jp. FAU - Nakamura, Masaya AU - Nakamura M AD - Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan. masa@keio.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180926 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Animals MH - *Connectome MH - Female MH - *Magnetic Resonance Imaging MH - Mice MH - *Motor Cortex/diagnostic imaging/physiopathology MH - *Neuronal Plasticity MH - *Somatosensory Cortex/diagnostic imaging/physiopathology MH - *Spinal Cord Injuries/diagnostic imaging/physiopathology MH - *Wakefulness PMC - PMC6158265 COIS- H.O. serves as a paid scientific advisor at SanBio Co. Ltd. and K Pharma Inc., M.N. serves as a paid scientific advisor at K Pharma Inc. The other authors declare no competing financial interests. EDAT- 2018/09/28 06:00 MHDA- 2019/10/28 06:00 PMCR- 2018/09/26 CRDT- 2018/09/28 06:00 PHST- 2017/07/17 00:00 [received] PHST- 2018/07/26 00:00 [accepted] PHST- 2018/09/28 06:00 [entrez] PHST- 2018/09/28 06:00 [pubmed] PHST- 2019/10/28 06:00 [medline] PHST- 2018/09/26 00:00 [pmc-release] AID - 10.1038/s41598-018-32766-8 [pii] AID - 32766 [pii] AID - 10.1038/s41598-018-32766-8 [doi] PST - epublish SO - Sci Rep. 2018 Sep 26;8(1):14406. doi: 10.1038/s41598-018-32766-8.