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Tereshenko V, Dotzauer DC, Schmoll M, Harnoncourt L, Carrero Rojas G, Gfrerer L, Eberlin KR, Austen WG, Blumer R, Farina D, Aszmann OC. Peripheral neural interfaces: Skeletal muscles are hyper-reinnervated according to the axonal capacity of the surgically rewired nerves. SCIENCE ADVANCES 2024; 10:eadj3872. [PMID: 38416828 PMCID: PMC10901366 DOI: 10.1126/sciadv.adj3872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 01/23/2024] [Indexed: 03/01/2024]
Abstract
Advances in robotics have outpaced the capabilities of man-machine interfaces to decipher and transfer neural information to and from prosthetic devices. We emulated clinical scenarios where high- (facial) or low-neural capacity (ulnar) donor nerves were surgically rewired to the sternomastoid muscle, which is controlled by a very small number of motor axons. Using retrograde tracing and electrophysiological assessments, we observed a nearly 15-fold functional hyper-reinnervation of the muscle after high-capacity nerve transfer, demonstrating its capability of generating a multifold of neuromuscular junctions. Moreover, the surgically redirected axons influenced the muscle's physiological characteristics, by altering the expression of myosin heavy-chain types in alignment with the donor nerve. These findings highlight the remarkable capacity of skeletal muscles to act as biological amplifiers of neural information from the spinal cord for governing bionic prostheses, with the potential of expressing high-dimensional neural function for high-information transfer interfaces.
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Affiliation(s)
- Vlad Tereshenko
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Clinical Laboratory for Bionic Extremity Reconstruction, Medical University of Vienna, Vienna, Austria
| | - Dominik C Dotzauer
- Clinical Laboratory for Bionic Extremity Reconstruction, Medical University of Vienna, Vienna, Austria
| | - Martin Schmoll
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Leopold Harnoncourt
- Clinical Laboratory for Bionic Extremity Reconstruction, Medical University of Vienna, Vienna, Austria
| | - Genova Carrero Rojas
- Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria
| | - Lisa Gfrerer
- Division of Plastic and Reconstructive Surgery, Weill Cornell Medicine, New York, NY, USA
| | - Kyle R Eberlin
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - William G Austen
- Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Roland Blumer
- Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria
| | - Dario Farina
- Department of Bioengineering, Imperial College London, South Kensington Campus London, SW7 2AZ London, UK
| | - Oskar C Aszmann
- Clinical Laboratory for Bionic Extremity Reconstruction, Medical University of Vienna, Vienna, Austria
- Department of Plastic, Reconstructive and Aesthetic Surgery, Medical University of Vienna, Vienna, Austria
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Wang J, Yao X, Xiong X, Liu Y, Zhao W, Zhang X, Li X, Wang J, Lei C, Jiang W, Zhang K, Li X, Weng Y, Li J, Zhang R, Zhang Z, Li H, Kong Q, Tian S, Lv Y, Mu L. Effect of ST36 electroacupuncture on the switch of skeletal muscle fibres in mice with sciatic nerve dissociation. Eur J Neurosci 2024; 59:192-207. [PMID: 38145884 DOI: 10.1111/ejn.16228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/14/2023] [Accepted: 12/04/2023] [Indexed: 12/27/2023]
Abstract
Skeletal muscle is striated muscle that moves autonomously and is innervated by peripheral nerves. Peripheral nerve injury is very common in clinical treatment. However, the commonly used treatment methods often focus on the regeneration of the injured nerve but overlook the pathological changes in the injured skeletal muscle. Acupuncture, as the main treatment for denervated skeletal muscle atrophy, is used extensively in clinical practice. In the present study, a mouse model of lower limb sciatic nerve detachment was constructed and treated with electroacupuncture Stomach 36 to observe the atrophy of lower limb skeletal muscle and changes in skeletal muscle fibre types before and after electroacupuncture Stomach 36 treatment. Mice with skeletal muscle denervation showed a decrease in the proportion of IIa muscle fibres and an increase in the proportion of IIb muscle fibres, after electroacupuncture Stomach 36. The changes were reversed by specific activators of p38 MAPK, which increased IIa myofibre ratio. The results suggest that electroacupuncture Stomach 36 can reverse the change of muscle fibre type from IIb to IIa after denervation of skeletal muscle by inhibiting p38 MAPK. The results provide an important theoretical basis for the treatment of clinical peripheral nerve injury diseases with electroacupuncture, in addition to novel insights that could facilitate the study of pathological changes of denervated skeletal muscle.
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Affiliation(s)
- Jinghua Wang
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Xiuhua Yao
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin Huanhu Hospital, Tianjin, China
| | - Xiaoyue Xiong
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Yumei Liu
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Wei Zhao
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Xiaoyu Zhang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Xinrong Li
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Jiaqi Wang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Cheng Lei
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Wei Jiang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Kefan Zhang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Xiangyang Li
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Yuting Weng
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Jie Li
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Ran Zhang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Zhaonan Zhang
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Hulun Li
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Qingfei Kong
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Sijia Tian
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
| | - Yanhua Lv
- Department of Neurology, 962 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Harbin, China
| | - Lili Mu
- Department of Neurobiology, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin Medical University, Harbin, China
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