1
|
Yuan YS, Xu HL, Liu ZD, Kou YH, Jin B, Zhang PX. Brain functional remodeling caused by sciatic nerve transposition repair in rats identified by multiple-model resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis. Neural Regen Res 2022; 17:418-426. [PMID: 34269218 PMCID: PMC8464002 DOI: 10.4103/1673-5374.317991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/24/2020] [Accepted: 04/16/2021] [Indexed: 11/29/2022] Open
Abstract
Lower extremity nerve transposition repair has become an important treatment strategy for peripheral nerve injury; however, brain changes caused by this surgical procedure remain unclear. In this study, the distal stump of the right sciatic nerve in a rat model of sciatic nerve injury was connected to the proximal end of the left sciatic nerve using a chitin conduit. Neuroelectrophysiological test showed that the right lower limb displayed nerve conduction, and the structure of myelinated nerve fibers recovered greatly. Muscle wet weight of the anterior tibialis and gastrocnemius recovered as well. Multiple-model resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis revealed functional remodeling in multiple brain regions and the re-establishment of motor and sensory functions through a new reflex arc. These findings suggest that sciatic nerve transposition repair induces brain functional remodeling. The study was approved by the Ethics Committee of Peking University People's Hospital on December 9, 2015 (approval No. 2015-50).
Collapse
Affiliation(s)
- Yu-Song Yuan
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Hai-Lin Xu
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Zhong-Di Liu
- National Center for Trauma Medicine, Beijing, China
| | - Yu-Hui Kou
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Bo Jin
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Pei-Xun Zhang
- Department of Trauma and Orthopedics, Peking University People's Hospital, Peking University, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| |
Collapse
|