PMID- 37863438 OWN - NLM STAT- MEDLINE DCOM- 20231127 LR - 20231127 IS - 1873-2747 (Electronic) IS - 0361-9230 (Linking) VI - 204 DP - 2023 Nov TI - Manganese-enhanced magnetic resonance assessment of changes in hippocampal neural function after the treatment of radiation-induced brain injury with bone marrow mesenchymal stem cells. PG - 110795 LID - S0361-9230(23)00220-4 [pii] LID - 10.1016/j.brainresbull.2023.110795 [doi] AB - The role of bone marrow mesenchymal stem cells (BMSCs) in treating radiation-induced brain injury (RIBI) is not completely understood, and assessment methods to directly characterize neurological function are lacking. In this study, we aimed to evaluate the effects of BMSCs treatment on changes in hippocampal neural function in Sprague-Dawley(SD) rats with RIBI, and to evaluate the therapeutic effect of BMSCs by manganese-enhanced magnetic resonance imaging (MEMRI). First, we assessed cognitive function after RIBI treatment with BMSCs using the Morris water maze. Next, we used MEMRI at two time points to observe the treatment effect and explore the correlation between MEMRI and cognitive function. Finally, we evaluated the expression of specific hippocampal neurofunctional proteins, the ultrastructure of hippocampal nerves, and the histological changes in the hippocampus. After BMSCs treatment of RIBI, cognitive dysfunction improved significantly, the expression of hippocampal neurofunctional proteins was increased, the integrity of the hippocampal neural structure was protected, and nerve cell survival was enhanced. The improvement in neurological function was successfully detected by MEMRI, and MEMRI was highly correlated with cognitive function and histological changes. These results suggest that BMSCs treatment of RIBI is an optional modality, and MEMRI can be used for treatment evaluation. CI - Copyright (c) 2023 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Liu, Zhanhong AU - Liu Z AD - College of Medical Technology, Qiqihar Medical University, Qiqihar 161006, China. FAU - Xu, Kaina AU - Xu K AD - College of Medical Technology, Qiqihar Medical University, Qiqihar 161006, China. FAU - Pan, Shichao AU - Pan S AD - College of Medical Technology, Qiqihar Medical University, Qiqihar 161006, China. FAU - Zhang, Na AU - Zhang N AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Wang, Dapeng AU - Wang D AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Chen, Ying AU - Chen Y AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Zhao, Yaru AU - Zhao Y AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Wang, Siqi AU - Wang S AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Li, Jing AU - Li J AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. FAU - Tong, Xu AU - Tong X AD - Department of Radiotherapy, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161006, China. Electronic address: cn_tongxu@163.com. LA - eng PT - Journal Article DEP - 20231019 PL - United States TA - Brain Res Bull JT - Brain research bulletin JID - 7605818 RN - 42Z2K6ZL8P (Manganese) SB - IM MH - Rats MH - Animals MH - Manganese MH - Rats, Sprague-Dawley MH - Magnetic Resonance Imaging/methods MH - *Mesenchymal Stem Cells MH - *Brain Injuries/pathology MH - Hippocampus/diagnostic imaging/pathology MH - Magnetic Resonance Spectroscopy MH - *Mesenchymal Stem Cell Transplantation OTO - NOTNLM OT - Brain injury OT - Magnetic resonance imaging OT - Mesenchymal stem cells OT - Neurofunctional OT - Radiation COIS- Declaration of Competing Interest The authors have no competing interests to declare that are relevant to the content of this article. EDAT- 2023/10/21 05:43 MHDA- 2023/11/27 12:44 CRDT- 2023/10/20 19:33 PHST- 2023/07/20 00:00 [received] PHST- 2023/10/03 00:00 [revised] PHST- 2023/10/17 00:00 [accepted] PHST- 2023/11/27 12:44 [medline] PHST- 2023/10/21 05:43 [pubmed] PHST- 2023/10/20 19:33 [entrez] AID - S0361-9230(23)00220-4 [pii] AID - 10.1016/j.brainresbull.2023.110795 [doi] PST - ppublish SO - Brain Res Bull. 2023 Nov;204:110795. doi: 10.1016/j.brainresbull.2023.110795. Epub 2023 Oct 19.