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Kuroda Y, Yoda M, Kawaai K, Tatenuma M, Mizoguchi T, Ito S, Kasahara M, Wu Y, Takano H, Momose A, Matsuo K. Developing long bones respond to surrounding tissues by trans-pairing of periosteal osteoclasts and endocortical osteoblasts. Development 2024; 151:dev202194. [PMID: 39119717 DOI: 10.1242/dev.202194] [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: 07/18/2023] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
Developing long bones alter their shape while maintaining uniform cortical thickness via coordinated activity of bone-forming osteoblasts and bone-resorbing osteoclasts at periosteal and endosteal surfaces, a process we designate trans-pairing. Two types of trans-pairing shift cortical bone in opposite orientations: peri-forming trans-pairing (peri-t-p) increases bone marrow space and endo-forming trans-pairing (endo-t-p) decreases it, via paired activity of bone resorption and formation across the cortex. Here, we focused on endo-t-p in growing bones. Analysis of endo-t-p activity in the cortex of mouse fibulae revealed osteoclasts under the periosteum compressed by muscles, and expression of RANKL in periosteal cells of the cambium layer. Furthermore, mature osteoblasts were localized on the endosteum, while preosteoblasts were at the periosteum and within cortical canals. X-ray tomographic microscopy revealed the presence of cortical canals more closely associated with endo- than with peri-t-p. Sciatic nerve transection followed by muscle atrophy and unloading induced circumferential endo-t-p with concomitant spread of cortical canals. Such canals likely supply the endosteum with preosteoblasts from the periosteum under endo-t-p, allowing bone shape to change in response to mechanical stress or nerve injury.
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Affiliation(s)
- Yukiko Kuroda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Masaki Yoda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Katsuhiro Kawaai
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Motoharu Tatenuma
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | | | - Shinichirou Ito
- Department of Pharmacology, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Masataka Kasahara
- Department of Pharmacology, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Yanlin Wu
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai Miyagi 980-8577, Japan
| | - Hidekazu Takano
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai Miyagi 980-8577, Japan
| | - Atsushi Momose
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai Miyagi 980-8577, Japan
- JASRI/SPring-8, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198, Japan
| | - Koichi Matsuo
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
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Minegishi Y, Ozone K, Oka Y, Kano T, Murata K, Kanemura N. Effect of repeated sciatic nerve crush on the conditioning lesion response: Generating an experimental animal model to prolong the denervation period while maintaining peripheral nerve continuity. Neurosci Lett 2024; 836:137879. [PMID: 38880353 DOI: 10.1016/j.neulet.2024.137879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
Peripheral nerves exhibit long-term residual motor dysfunction following injury. The length of the denervation period before nerve and muscle reconnection is an important factor in motor function recovery. We aimed to investigate whether repeated nerve crush injuries to the same site every 7 days would preserve the conditioning lesion (CL) response and to determine the number of nerve crush injuries required to create an experimental animal model that would prolong the denervation period while maintaining peripheral nerve continuity. Rats were grouped according to the number of sciatic nerve crushes. A significant decrease in the soleus muscle fiber cross-sectional area was observed with increased crushes. After a single crush, macrophage accumulation and macrophage chemotaxis factor CCL2 expression in dorsal root ganglia were markedly increased, which aligned with the gene expression of Ccl2 and its receptor Ccr2. Macrophage numbers, histological CCL2 expression, and Ccl2 and Ccr2 gene expression levels decreased, depending on the number of repeated crushes. Histological analysis and gene expression analysis in the group with four repeated crushes did not differ significantly when compared with uninjured animals. Our findings indicated that repeated nerve crushes at the same site every 7 days sustained innervation loss and caused a loss of the CL response. The experimental model did not require nerve stump suturing and is useful for exploring factors causing prolonged denervation-induced motor dysfunction. SIGNIFICANCE STATEMENT: This study elucidates the effects of repeated nerve crush injury to the same site on innervation and conditioning lesion responses and demonstrates the utility of an experimental animal model that recapitulates the persistent residual motor deficits owing to prolonged denervation without requiring nerve transection and transection suturing.
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Affiliation(s)
- Yuki Minegishi
- Physical Therapy Course, Department of Rehabilitation, Faculty of Health Sciences, Nihon Institute of Medical Science, Irumagun 350-0435, Japan; Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Koshigaya 343-8540, Japan
| | - Kaichi Ozone
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Koshigaya 343-8540, Japan; Department of Rehabilitation, University of Tsukuba Hospital, Tsukuba 305-8576, Japan
| | - Yuichiro Oka
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Takuma Kano
- Graduate Course of Health and Social Services, Graduate School of Saitama Prefectural University, Koshigaya 343-8540, Japan; Soka Orthopedic Internal Medicine, Soka 340-0016, Japan
| | - Kenji Murata
- Department of Physical Therapy, Faculty of Health and Social Services, Saitama Prefectural University, Koshigaya 343-8540, Japan
| | - Naohiko Kanemura
- Department of Physical Therapy, Faculty of Health and Social Services, Saitama Prefectural University, Koshigaya 343-8540, Japan.
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Xu X, Zhang CJ, Talifu Z, Liu WB, Li ZH, Wang XX, Du HY, Ke H, Yang DG, Gao F, Du LJ, Yu Y, Jing YL, Li JJ. The Effect of Glycine and N-Acetylcysteine on Oxidative Stress in the Spinal Cord and Skeletal Muscle After Spinal Cord Injury. Inflammation 2024; 47:557-571. [PMID: 37975960 DOI: 10.1007/s10753-023-01929-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/24/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Oxidative stress is a frequently occurring pathophysiological feature of spinal cord injury (SCI) and can result in secondary injury to the spinal cord and skeletal muscle atrophy. Studies have reported that glycine and N-acetylcysteine (GlyNAC) have anti-aging and anti-oxidative stress properties; however, to date, no study has assessed the effect of GlyNAC in the treatment of SCI. In the present work, we established a rat model of SCI and then administered GlyNAC to the animals by gavage at a dose of 200 mg/kg for four consecutive weeks. The BBB scores of the rats were significantly elevated from the first to the eighth week after GlyNAC intervention, suggesting that GlyNAC promoted the recovery of motor function; it also promoted the significant recovery of body weight of the rats. Meanwhile, the 4-week heat pain results also suggested that GlyNAC intervention could promote the recovery of sensory function in rats to some extent. Additionally, after 4 weeks, the levels of glutathione and superoxide dismutase in spinal cord tissues were significantly elevated, whereas that of malondialdehyde was significantly decreased in GlyNAC-treated animals. The gastrocnemius wet weight ratio and total antioxidant capacity were also significantly increased. After 8 weeks, the malondialdehyde level had decreased significantly in spinal cord tissue, while reactive oxygen species accumulation in skeletal muscle had decreased. These findings suggested that GlyNAC can protect spinal cord tissue, delay skeletal muscle atrophy, and promote functional recovery in rats after SCI.
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Affiliation(s)
- Xin Xu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Chun-Jia Zhang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Zuliyaer Talifu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, 100730, China
| | - Wu-Bo Liu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, 250100, Shandong Province, China
| | - Ze-Hui Li
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Xiao-Xin Wang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
| | - Hua-Yong Du
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Han Ke
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, 250100, Shandong Province, China
| | - De-Gang Yang
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Feng Gao
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Liang-Jie Du
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Yan Yu
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Ying-Li Jing
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China
| | - Jian-Jun Li
- School of Rehabilitation, Capital Medical University, Beijing, 100068, China.
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, 100068, China.
- Chinese Institute of Rehabilitation Science, Beijing, 100068, China.
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, 100068, China.
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China.
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong Province, China.
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266000, Shandong Province, China.
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Abe-Takahashi Y, Kitta T, Ouchi M, Chiba H, Higuchi M, Togo M, Kusakabe N, Kakizaki H, Shinohara N. Morphological examination of pelvic floor muscles in a rat model of vaginal delivery. BMC Pregnancy Childbirth 2024; 24:95. [PMID: 38297206 PMCID: PMC10832168 DOI: 10.1186/s12884-024-06278-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 01/17/2024] [Indexed: 02/02/2024] Open
Abstract
OBJECTIVE This study investigated morphological changes in the composition of the pelvic floor muscles, degree of atrophy, and urethral function in a rat of simulated birth trauma induced by vaginal distension (VD) model. METHODS Female Sprague-Dawley rats were classified into four groups: a sham group, and 1, 2, and 4 weeks post-VD (1 W, 2 W, and 4 W, respectively) groups. We measured the amplitude of urethral response to electrical stimulation (A-URE) to evaluate urethral function. After measuring the muscle wet weight of the pubococcygeus (Pcm) and iliococcygeus (Icm) muscles, histochemical staining was used to classify muscle fibers into Types I, IIa, and IIb, and the occupancy and cross-sectional area of each muscle fiber were determined. RESULTS There were 24 Sprague-Dawley rats used. A-URE was significantly lower in the 1 W group versus the other groups. Muscle wet weight was significantly lower in the VD groups versus the sham group for Pcm. The cross-sectional area of Type I Pcm and Icm was significantly lower in the VD groups versus the sham group. Type I muscle fiber composition in Pcm was significantly lower in the VD groups versus the sham groupand lowest in the 2 W group. Type I muscle fiber composition in Icm was significantly lower in the 2 and 4 W groups versus the sham group. CONCLUSION Muscle atrophy and changes in muscle composition in the pelvic floor muscles were observed even after improvements in urethral function. These results may provide insight into the pathogenesis of stress urinary incontinence after VD.
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Affiliation(s)
- Yui Abe-Takahashi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
- Department of Physical Therapy, Faculty of Health Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Takeya Kitta
- Department of Renal and Urologic Surgery, Asahikawa Medical University, Asahikawa, Japan.
| | - Mifuka Ouchi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroki Chiba
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Madoka Higuchi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mio Togo
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naohisa Kusakabe
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hidehiro Kakizaki
- Department of Renal and Urologic Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Nobuo Shinohara
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Xu X, Talifu Z, Zhang CJ, Gao F, Ke H, Pan YZ, Gong H, Du HY, Yu Y, Jing YL, Du LJ, Li JJ, Yang DG. Mechanism of skeletal muscle atrophy after spinal cord injury: A narrative review. Front Nutr 2023; 10:1099143. [PMID: 36937344 PMCID: PMC10020380 DOI: 10.3389/fnut.2023.1099143] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Spinal cord injury leads to loss of innervation of skeletal muscle, decreased motor function, and significantly reduced load on skeletal muscle, resulting in atrophy. Factors such as braking, hormone level fluctuation, inflammation, and oxidative stress damage accelerate skeletal muscle atrophy. The atrophy process can result in skeletal muscle cell apoptosis, protein degradation, fat deposition, and other pathophysiological changes. Skeletal muscle atrophy not only hinders the recovery of motor function but is also closely related to many systemic dysfunctions, affecting the prognosis of patients with spinal cord injury. Extensive research on the mechanism of skeletal muscle atrophy and intervention at the molecular level has shown that inflammation and oxidative stress injury are the main mechanisms of skeletal muscle atrophy after spinal cord injury and that multiple pathways are involved. These may become targets of future clinical intervention. However, most of the experimental studies are still at the basic research stage and still have some limitations in clinical application, and most of the clinical treatments are focused on rehabilitation training, so how to develop more efficient interventions in clinical treatment still needs to be further explored. Therefore, this review focuses mainly on the mechanisms of skeletal muscle atrophy after spinal cord injury and summarizes the cytokines and signaling pathways associated with skeletal muscle atrophy in recent studies, hoping to provide new therapeutic ideas for future clinical work.
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Affiliation(s)
- Xin Xu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Zuliyaer Talifu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Chun-Jia Zhang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Feng Gao
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Han Ke
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Yun-Zhu Pan
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
| | - Han Gong
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Hua-Yong Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Yan Yu
- School of Rehabilitation, Capital Medical University, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Ying-Li Jing
- School of Rehabilitation, Capital Medical University, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Liang-Jie Du
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
| | - Jian-Jun Li
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China
- *Correspondence: Jian-Jun Li
| | - De-Gang Yang
- School of Rehabilitation, Capital Medical University, Beijing, China
- Department of Spinal and Neural Functional Reconstruction, China Rehabilitation Research Center, Beijing, China
- Chinese Institute of Rehabilitation Science, Beijing, China
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, China
- De-Gang Yang
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Photobiomodulation Therapy Applied after 6 Months for the Management of a Severe Inferior Alveolar Nerve Injury. Life (Basel) 2021; 11:life11121420. [PMID: 34947950 PMCID: PMC8706621 DOI: 10.3390/life11121420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/14/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Despite its significant negative impact on the quality of life, the methods for the management of the inferior alveolar nerve (IAN) injury are still limited. In this case report, the patient did not show any improvement from the day of the iatrogenic accident until 6 months. A significant improvement of the symptoms started to appear only at 6 months when PBMT was applied. A total of 42 sessions of PBMT took place. The application zone included intraoral and extraoral areas. The parameters were: Delivery power of 0.1 W, for 40 s, continuous wave (CW), contact mode, and delivered energy of 4 J. The delivered energy density related to the fiber diameter was 1415 J/cm2. Each treated point was considered to be 1 cm2 of diameter. At the end of the treatment, all of the symptoms disappeared except for an abnormal sensation on touching the mucosa and gingiva of the concerned area. No side effects were noted. This case report shows that PBMT can be a very promising approach for the management of severe cases that are not improving with conventional methods.
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Jang SH, Lee J, Lee O. Micro- and nano-tomography analysis of mouse soleus muscle using radiation. Microsc Res Tech 2021; 84:2685-2693. [PMID: 34021519 DOI: 10.1002/jemt.23819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 04/13/2021] [Accepted: 05/02/2021] [Indexed: 11/10/2022]
Abstract
In this study, we analyze radiation images of muscle structure of mice soleus muscles using radiation source-based microtomography and nanotomography. Soleus muscle samples were collected for analysis from 8-week-old male Institute of Cancer Research mice. First, phase-contrast X-ray microtomography was employed in these experiments. Then to obtain images with excellent contrast, imaging was performed using monochromatic light with excellent transmission power. To analyze additional muscle structures in higher magnification images than these images, nanotomography was performed, which facilitated obtaining high-magnification and high-resolution images. Muscle tissue microstructures were confirmed through three-dimensional images obtained from phase-contrast X-ray microtomography. Thus, the muscle tissue's overall shape at microscopic level can be captured. Additionally, a single muscle fiber was examined using hard X-ray nano-imaging, through which we could observe the alignment of countless myofibrils, that is, actin and myosin filaments in the muscle fibers. Thus, the methodology adopted here proved to be advantageous in analyzing the muscle tissue's overall structure with microtomography and in observing the myofibrils in detail using nanotomography.
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Affiliation(s)
- Sang-Hun Jang
- Department of Physical Therapy, College of Health and Life Science, Korea National University of Transportation, Jeungpyeong-eup, Chungbuk, Republic of Korea
| | - Jiwon Lee
- Department of Software Convergence, Graduate School, Soonchunhyang University, Asan City, Chungnam, Republic of Korea
| | - Onseok Lee
- Department of Software Convergence, Graduate School, Soonchunhyang University, Asan City, Chungnam, Republic of Korea.,Department of Medical IT Engineering, College of Medical Sciences, Soonchunhyang University, Asan City, Chungnam, Republic of Korea
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Shen Y, Zhang Q, Huang Z, Zhu J, Qiu J, Ma W, Yang X, Ding F, Sun H. Isoquercitrin Delays Denervated Soleus Muscle Atrophy by Inhibiting Oxidative Stress and Inflammation. Front Physiol 2020; 11:988. [PMID: 32903465 PMCID: PMC7435639 DOI: 10.3389/fphys.2020.00988] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/20/2020] [Indexed: 12/19/2022] Open
Abstract
Although denervated muscle atrophy is common, the underlying molecular mechanism remains unelucidated. We have previously found that oxidative stress and inflammatory response may be early events that trigger denervated muscle atrophy. Isoquercitrin is a biologically active flavonoid with antioxidative and anti-inflammatory properties. The present study investigated the effect of isoquercitrin on denervated soleus muscle atrophy and its possible molecular mechanisms. We found that isoquercitrin was effective in alleviating soleus muscle mass loss following denervation in a dose-dependent manner. Isoquercitrin demonstrated the optimal protective effect at 20 mg/kg/d, which was the dose used in subsequent experiments. To further explore the protective effect of isoquercitrin on denervated soleus muscle atrophy, we analyzed muscle proteolysis via the ubiquitin-proteasome pathway, mitophagy, and muscle fiber type conversion. Isoquercitrin significantly inhibited the denervation-induced overexpression of two muscle-specific ubiquitin ligases—muscle RING finger 1 (MuRF1) and muscle atrophy F-box (MAFbx), and reduced the degradation of myosin heavy chains (MyHCs) in the target muscle. Following isoquercitrin treatment, mitochondrial vacuolation and autophagy were inhibited, as evidenced by reduced level of autophagy-related proteins (ATG7, BNIP3, LC3B, and PINK1); slow-to-fast fiber type conversion in the target muscle was delayed via triggering expression of peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α); and the production of reactive oxygen species (ROS) in the target muscle was reduced, which might be associated with the upregulation of antioxidant factors (SOD1, SOD2, NRF2, NQO1, and HO1) and the downregulation of ROS production-related factors (Nox2, Nox4, and DUOX1). Furthermore, isoquercitrin treatment reduced the levels of inflammatory factors—interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α)—in the target muscle and inactivated the JAK/STAT3 signaling pathway. Overall, isoquercitrin may alleviate soleus muscle atrophy and mitophagy and reverse the slow-to-fast fiber type conversion following denervation via inhibition of oxidative stress and inflammatory response. Our study findings enrich the knowledge regarding the molecular regulatory mechanisms of denervated muscle atrophy and provide a scientific basis for isoquercitrin as a protective drug for the prevention and treatment of denervated muscle atrophy.
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Affiliation(s)
- Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Qiuyu Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Ziwei Huang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Jianwei Zhu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, China
| | - Jiayi Qiu
- School of Nursing, Nantong University, Nantong, China
| | - Wenjing Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Fei Ding
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, China
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9
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Chariker JH, Sharp M, Ohri SS, Gomes C, Brabazon F, Harman KA, Whittemore SR, Petruska JC, Magnuson DSK, Rouchka EC. RNA-seq data of soleus muscle tissue after spinal cord injury under conditions of inactivity and applied exercise. Data Brief 2020; 28:105056. [PMID: 32226812 PMCID: PMC7093805 DOI: 10.1016/j.dib.2019.105056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/27/2019] [Accepted: 12/17/2019] [Indexed: 11/16/2022] Open
Abstract
Reduced muscle mass and increased fatiguability are major complications after spinal cord injury (SCI), and often hinder the rehabilitation efforts of patients. Such detriments to the musculoskeletal system, and the concomitant reduction in level of activity, contribute to secondary complications such as cardiovascular disease, diabetes, bladder dysfunction and liver damage. As a result of decreased weight-bearing capacity after SCI, muscles undergo morphological, metabolic, and contractile changes. Recent studies have shown that exercise after SCI decreases muscle wasting and reduces the burden of secondary complications. Here, we describe RNA sequencing data for detecting chronic transcriptomic changes in the rat soleus after SCI at two levels of injury severity, under conditions of restricted in-cage activity and two methods of applied exercise, swimming or shallow water walking. We demonstrate that the sequenced data are of good quality and show a high alignment rate to the Rattus norvegicus reference assembly (Rn6). The raw data, along with UCSC Genome Browser tracks created to facilitate exploration of gene expression, are available in the NCBI Gene Expression Omnibus (GEO; GSE129694).
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Affiliation(s)
- Julia H. Chariker
- Department of Neuroscience Training, University of Louisville, 522 East Gray St., Louisville, KY, 40202, USA
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, University of Louisville, 522 East Gray St., Louisville, KY, 40202, USA
| | - Morgan Sharp
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - Sujata Saraswat Ohri
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - Cynthia Gomes
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
| | - Fiona Brabazon
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - Kathryn A. Harman
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Health & Sport Sciences, University of Louisville, 2100 South Floyd Street, Louisville, KY, 40208, USA
| | - Scott R. Whittemore
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
| | - Jeffrey C. Petruska
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
| | - David SK. Magnuson
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
| | - Eric C. Rouchka
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, University of Louisville, 522 East Gray St., Louisville, KY, 40202, USA
- Department of Computer and Engineering Science, Speed School of Engineering, University of Louisville, Duthie Center for Engineering, 2301 South 3rd St., Louisville, KY, 40292, USA
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10
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Yarrow JF, Kok HJ, Phillips EG, Conover CF, Lee J, Bassett TE, Buckley KH, Reynolds MC, Wnek RD, Otzel DM, Chen C, Jiron JM, Graham ZA, Cardozo C, Vandenborne K, Bose PK, Aguirre JI, Borst SE, Ye F. Locomotor training with adjuvant testosterone preserves cancellous bone and promotes muscle plasticity in male rats after severe spinal cord injury. J Neurosci Res 2019; 98:843-868. [PMID: 31797423 DOI: 10.1002/jnr.24564] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/31/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022]
Abstract
Loading and testosterone may influence musculoskeletal recovery after spinal cord injury (SCI). Our objectives were to determine (a) the acute effects of bodyweight-supported treadmill training (TM) on hindlimb cancellous bone microstructure and muscle mass in adult rats after severe contusion SCI and (b) whether longer-term TM with adjuvant testosterone enanthate (TE) delivers musculoskeletal benefit. In Study 1, TM (40 min/day, 5 days/week, beginning 1 week postsurgery) did not prevent SCI-induced hindlimb cancellous bone loss after 3 weeks. In Study 2, TM did not attenuate SCI-induced plantar flexor muscles atrophy nor improve locomotor recovery after 4 weeks. In our main study, SCI produced extensive distal femur and proximal tibia cancellous bone deficits, a deleterious slow-to-fast fiber-type transition in soleus, lower muscle fiber cross-sectional area (fCSA), impaired muscle force production, and levator ani/bulbocavernosus (LABC) muscle atrophy after 8 weeks. TE alone (7.0 mg/week) suppressed bone resorption, attenuated cancellous bone loss, constrained the soleus fiber-type transition, and prevented LABC atrophy. In comparison, TE+TM concomitantly suppressed bone resorption and stimulated bone formation after SCI, produced near-complete cancellous bone preservation, prevented the soleus fiber-type transition, attenuated soleus fCSA atrophy, maintained soleus force production, and increased LABC mass. 75% of SCI+TE+TM animals recovered voluntary over-ground hindlimb stepping, while no SCI and only 20% of SCI+TE animals regained stepping ability. Positive associations between testosterone and locomotor function suggest that TE influenced locomotor recovery. In conclusion, short-term TM alone did not improve bone, muscle, or locomotor recovery in adult rats after severe SCI, while longer-term TE+TM provided more comprehensive musculoskeletal benefit than TE alone.
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Affiliation(s)
- Joshua F Yarrow
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA.,Brain Rehabilitation Research Center, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA.,Division of Endocrinology, Diabetes, and Metabolism, University of Florida College of Medicine, Gainesville, FL, USA
| | - Hui Jean Kok
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA.,Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - Ean G Phillips
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Christine F Conover
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Jimmy Lee
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Taylor E Bassett
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Kinley H Buckley
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Michael C Reynolds
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Russell D Wnek
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Dana M Otzel
- Brain Rehabilitation Research Center, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
| | - Cong Chen
- Divison of Orthopedics and Rehabilitation, University of Florida College of Medicine, Gainesville, FL, USA
| | - Jessica M Jiron
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Zachary A Graham
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA.,Departments of Medicine, Icahn School of Medicine, New York, NY, USA
| | - Christopher Cardozo
- National Center for the Medical Consequences of Spinal Cord Injury, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA.,Departments of Medicine, Icahn School of Medicine, New York, NY, USA.,Rehabilitation Medicine, Icahn School of Medicine, New York, NY, USA
| | - Krista Vandenborne
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Prodip K Bose
- Brain Rehabilitation Research Center, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA.,Department of Physiological Sciences, University of Florida, Gainesville, FL, USA.,Division of Neurology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Jose Ignacio Aguirre
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Stephen E Borst
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - Fan Ye
- Research Service, Malcom Randall Department of Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL, USA
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11
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Leite APS, Pinto CG, Tibúrcio FC, Sartori AA, de Castro Rodrigues A, Barraviera B, Ferreira RS, Filadelpho AL, Matheus SMM. Heterologous fibrin sealant potentiates axonal regeneration after peripheral nerve injury with reduction in the number of suture points. Injury 2019; 50:834-847. [PMID: 30922661 DOI: 10.1016/j.injury.2019.03.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 01/10/2019] [Accepted: 03/16/2019] [Indexed: 02/02/2023]
Abstract
The use of suture associated with heterologous fibrin sealant has been highlighted for reconstruction after peripheral nerve injury, having the advantage of being safe for clinical use. In this study we compared the use of this sealant associated with reduced number of stitches with conventional suture after ischiatic nerve injury. 36 Wistar rats were divided into 4 groups: Control (C), Denervated (D), ischiatic nerve neurotmesis (6 mm gap); Suture (S), epineural anastomosis after 7 days from neurotmesis, Suture + Fibrin Sealant (SFS), anastomosis with only one suture point associated with Fibrin Sealant. Catwalk, electromyography, ischiatic and tibial nerve, soleus muscle morphological and morphometric analyses were performed. The amplitude and latency values of the Suture and Suture + Fibrin Sealant groups were similar and indicative of nerve regeneration.The ischiatic nerve morphometric analysis in the Suture + Fibrin Sealant showed superior values related to axons and nerve fibers area and diameter when compared to Suture group. In the Suture and Suture + Fibrin Sealant groups, there was an increase in muscle weight and in fast fibers frequency, it was a decrease in the percentage of collagen compared to group Denervated and in the neuromuscular junctions, the synaptic boutons were reestablished.The results suggest a protective effect at the lesion site caused by the fibrin sealant use. The stitches reduction minimizes the trauma caused by the needle and it accelerates the surgical practice. So the heterologous fibrin sealant use in nerve reconstruction should be considered.
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Affiliation(s)
- Ana Paula Silveira Leite
- Graduate Program on the General Bases of Surgery, Botucatu Medical School, Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil; Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil.
| | - Carina Guidi Pinto
- Graduate Program on the General Bases of Surgery, Botucatu Medical School, Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil; Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil
| | - Felipe Cantore Tibúrcio
- Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil
| | - Arthur Alves Sartori
- Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil
| | | | - Benedito Barraviera
- The Center for the Study of Venoms and Venomous Animals, UNESP, Botucatu, SP, Brazil
| | - Rui Seabra Ferreira
- The Center for the Study of Venoms and Venomous Animals, UNESP, Botucatu, SP, Brazil
| | - André Luis Filadelpho
- Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil
| | - Selma Maria Michelin Matheus
- Department of Anatomy, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo State University (Unesp), Institute of Biosciences, Travessa da Rua Prof. Dr. Gilberti Moreno São Paulo, 18618-689, Botucatu, Brazil
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12
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Afsharipour B, Chandra S, Son J, Rymer WZ, Suresh NL. Effect of Botulinum Toxin on the Spatial Distribution of Biceps Brachii EMG Activity Using a Grid of Surface Electrodes: A Case Study. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2018:4693-4696. [PMID: 30441397 DOI: 10.1109/embc.2018.8513125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Botulinum toxin (BT) is widely prescribed by physicians for managing spasticity post stroke. In an ongoing study, we examine the spatial pattern of muscle activity in biceps brachii of stroke survivors before and after receiving BT, examined over the course of 11 weeks (2 weeks before - 9 weeks after). We hypothesize that BT alters muscle electrophysiology by disrupting fiber neuromuscular transmission in an inhomogeneous manner and we seek to detect these changes using grid surface electromyography (sEMG). Also, we obtained B-mode ultrasound images to have an accurate interpretation of sEMG data by looking at the fiber angle and subcutaneous fat thickness distribution across muscle. Here, we are reporting a single case where a chronic stroke survivor received BT injection in the biceps brachii (BB). A 16x8 sEMG electrode grid was used to capture the muscle activity distribution of BB during sustained non-fatiguing isometric contraction at 40% of maximal voluntary (MVC) elbow flexion. We obtained the root mean squared (RMS) maps of the signal recorded at each of the $16 \times 8$ electrodes. We observed substantial changes in the RMS pattern of BB muscle after receiving BT. More than 80% decrease in sEMG amplitude (RMS) was observed for the channels around the BT injection site as well as about 74% elbow flexion force reduction at the time point of 3-4 weeks post-injection. We also found significant differences between the spatial voluntary activation pattern of pre and post BT RMS maps. We further observed a non-uniform effect and recovery caused by the BT on the distribution of muscle activity. In conclusion, we observed evidence of alteration of the amplitude and pattern of muscle activity after botulinum toxin injection and can document the capability of grid recordings to detect these pattern changes. Our major goals target further investigation to provide an indepth understanding of the effect of botulinum toxin injection at motor unit level.
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13
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Dos Santos FP, Peruch T, Katami SJV, Martini APR, Crestani TA, Quintiliano K, Maurmann N, Sanches EF, Netto CA, Pranke P, de Souza Pagnussat A. Poly (lactide-co-glycolide) (PLGA) Scaffold Induces Short-term Nerve Regeneration and Functional Recovery Following Sciatic Nerve Transection in Rats. Neuroscience 2018; 396:94-107. [PMID: 30452974 DOI: 10.1016/j.neuroscience.2018.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 01/27/2023]
Abstract
Peripheral nerve injury is an important cause of incapability and has limited available treatment. Autologous donor nerve implant is the golden standard treatment, however, may cause secondary deficits. Stem cells show positive results in preclinical settings, preserving tissue and function. We tested the efficacy of stem cells derived from human exfoliated deciduous teeth seeded in poly (lactide-co-glycolide) scaffolds in sciatic nerve transection model. Seventy-two adult male Wistar rats had 7-mm nerve gap bridge using scaffolds with (or without) stem cells. Animals were randomly divided into: sham-operated; sham-operated without scaffold; sham-operated + scaffold + stem cells; sciatic transection + no treatment; sciatic transection + acellular scaffolds; sciatic transection + scaffold + stem cells. Sciatic Functional Index and Ladder Rung Walking tests were performed before (-1), 14 and 28 days after surgery. Morphometric nerve measurement and muscle weights were assessed. Scaffolds with stem cells improved function in Sciatic Functional Index. Acellular scaffold was effective, promoting functional recovery and nerve regeneration following nerve injury. Scaffolds provide better nerve regeneration and functional recovery after sciatic transection. Despite cell therapy promoting faster recovery after sciatic transection in the Sciatic Index Score, stem cells did not improve functional and morphological recovery after nerve injury. This is the first study testing the potential use of scaffolds combined with stem cells in the early stages after injury. Scaffolds with stem cells could accelerate nerve recovery and favor adjuvant therapies, evidencing the need for further studies to increase the knowledge about stem cells' mechanisms.
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Affiliation(s)
- Franciele Pereira Dos Santos
- Post-graduation Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Thais Peruch
- Department of Physical Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | | | - Ana Paula Rodrigues Martini
- Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Thayane Antoniolli Crestani
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Kerlin Quintiliano
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Eduardo Farias Sanches
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Carlos Alexandre Netto
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Stem Cell Research Institute (SCRI), Porto Alegre, RS, Brazil
| | - Aline de Souza Pagnussat
- Post-graduation Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil; Department of Physical Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil; Post-graduation Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
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14
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Islam MA, Hamzaid NA, Ibitoye MO, Hasnan N, Wahab AKA, Davis GM. Mechanomyography responses characterize altered muscle function during electrical stimulation-evoked cycling in individuals with spinal cord injury. Clin Biomech (Bristol, Avon) 2018; 58:21-27. [PMID: 30005423 DOI: 10.1016/j.clinbiomech.2018.06.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 05/16/2018] [Accepted: 06/27/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Investigation of muscle fatigue during functional electrical stimulation (FES)-evoked exercise in individuals with spinal cord injury using dynamometry has limited capability to characterize the fatigue state of individual muscles. Mechanomyography has the potential to represent the state of muscle function at the muscle level. This study sought to investigate surface mechanomyographic responses evoked from quadriceps muscles during FES-cycling, and to quantify its changes between pre- and post-fatiguing conditions in individuals with spinal cord injury. METHODS Six individuals with chronic motor-complete spinal cord injury performed 30-min of sustained FES-leg cycling exercise on two days to induce muscle fatigue. Each participant performed maximum FES-evoked isometric knee extensions before and after the 30-min cycling to determine pre- and post- extension peak torque concomitant with mechanomyography changes. FINDINGS Similar to extension peak torque, normalized root mean squared (RMS) and mean power frequency (MPF) of the mechanomyography signal significantly differed in muscle activities between pre- and post-FES-cycling for each quadriceps muscle (extension peak torque up to 69%; RMS up to 80%, and MPF up to 19%). Mechanomyographic-RMS showed significant reduction during cycling with acceptable between-days consistency (intra-class correlation coefficients, ICC = 0.51-0.91). The normalized MPF showed a weak association with FES-cycling duration (ICC = 0.08-0.23). During FES-cycling, the mechanomyographic-RMS revealed greater fatigue rate for rectus femoris and greater fatigue resistance for vastus medialis in spinal cord injured individuals. INTERPRETATION Mechanomyographic-RMS may be a useful tool for examining real time muscle function of specific muscles during FES-evoked cycling in individuals with spinal cord injury.
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Affiliation(s)
- Md Anamul Islam
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Physical Therapy, College of Staten Island, City University of New York, New York 10314, USA
| | - Nur Azah Hamzaid
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Morufu Olusola Ibitoye
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Nazirah Hasnan
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Department of Rehabilitation Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ahmad Khairi Abdul Wahab
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Glen M Davis
- Clinical Exercise and Rehabilitation Unit, Discipline of Exercise and Sport Science, Faculty of Health Sciences, University of Sydney, Sydney, 2006 NSW, Australia; Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
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WITHDRAWN: Histological difference of Soleus Muscle fibers due to Sciatic Nerve Transection in Rats. PATHOPHYSIOLOGY 2018. [DOI: 10.1016/j.pathophys.2018.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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16
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Sarcopenia in a mice model of chronic liver disease: role of the ubiquitin–proteasome system and oxidative stress. Pflugers Arch 2018; 470:1503-1519. [DOI: 10.1007/s00424-018-2167-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 06/06/2018] [Accepted: 06/11/2018] [Indexed: 02/06/2023]
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17
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Otzel DM, Lee J, Ye F, Borst SE, Yarrow JF. Activity-Based Physical Rehabilitation with Adjuvant Testosterone to Promote Neuromuscular Recovery after Spinal Cord Injury. Int J Mol Sci 2018; 19:ijms19061701. [PMID: 29880749 PMCID: PMC6032131 DOI: 10.3390/ijms19061701] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 12/22/2022] Open
Abstract
Neuromuscular impairment and reduced musculoskeletal integrity are hallmarks of spinal cord injury (SCI) that hinder locomotor recovery. These impairments are precipitated by the neurological insult and resulting disuse, which has stimulated interest in activity-based physical rehabilitation therapies (ABTs) that promote neuromuscular plasticity after SCI. However, ABT efficacy declines as SCI severity increases. Additionally, many men with SCI exhibit low testosterone, which may exacerbate neuromusculoskeletal impairment. Incorporating testosterone adjuvant to ABTs may improve musculoskeletal recovery and neuroplasticity because androgens attenuate muscle loss and the slow-to-fast muscle fiber-type transition after SCI, in a manner independent from mechanical strain, and promote motoneuron survival. These neuromusculoskeletal benefits are promising, although testosterone alone produces only limited functional improvement in rodent SCI models. In this review, we discuss the (1) molecular deficits underlying muscle loss after SCI; (2) independent influences of testosterone and locomotor training on neuromuscular function and musculoskeletal integrity post-SCI; (3) hormonal and molecular mechanisms underlying the therapeutic efficacy of these strategies; and (4) evidence supporting a multimodal strategy involving ABT with adjuvant testosterone, as a potential means to promote more comprehensive neuromusculoskeletal recovery than either strategy alone.
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Affiliation(s)
- Dana M Otzel
- Brain Rehabilitation Research Center, Malcom Randall Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL 32608, USA.
| | - Jimmy Lee
- Research Service, Malcom Randall Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL 32608, USA.
| | - Fan Ye
- Research Service, Malcom Randall Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL 32608, USA.
| | - Stephen E Borst
- Department of Applied Physiology, Kinesiology and University of Florida College of Health and Human Performance, Gainesville, FL 32603, USA.
| | - Joshua F Yarrow
- Research Service, Malcom Randall Veterans Affairs Medical Center, North Florida/South Georgia Veterans Health System, Gainesville, FL 32608, USA.
- Division of Endocrinology, Diabetes and Metabolism, University of Florida College of Medicine, Gainesville, FL 32610, USA.
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18
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Owers DS, Perriman DM, Smith PN, Neeman T, Webb AL. Evidence for cervical muscle morphometric changes on magnetic resonance images after whiplash: A systematic review and meta-analysis. Injury 2018; 49:165-176. [PMID: 29269107 DOI: 10.1016/j.injury.2017.12.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/29/2017] [Accepted: 12/03/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Morphometric changes to cervical musculature in whiplash associated disorder have been reported in several studies with varying results. However, the evidence is not clear because only a limited number of cohorts have been studied and one cohort has been reported in multiple publications. The aim of this study was to assess the evidence for cervical muscle morphometric changes on magnetic resonance (MR) images after whiplash using a systematic review with meta-analysis. MATERIALS AND METHODS PubMed, MEDLINE and Cochrane Library were searched without language restriction using combinations of the MeSH terms "muscles", "whiplash injuries", and "magnetic resonance imaging". Studies of acute and chronic whiplash were included if they compared whiplash and control cervical spine muscle morphometry measurements from MR images. The search identified 380 studies. After screening, eight studies describing five cohorts (one acute, three chronic, one both acute and chronic) met the inclusion criteria. Participant characteristics and outcome measures were extracted using a standard extraction format. Quality of eligible studies was assessed using the Newcastle-Ottawa Scale. Muscle cross-sectional area (CSA) and fat infiltrate (MFI) for acute and chronic whiplash cohorts were compared using mean difference and 95% confidence intervals. Meta-analysis models were created when data from more than two eligible cohorts was available, using inverse-variance random-effects models (RevMan5 version 5.3.5). RESULTS Quality assessment was uniformly good but only two studies blinded the assessor. Analysis of the acute cohorts revealed no consensus with respect to CSA. MFI was not measured in the acute cohorts. Analysis of the chronic cohorts revealed CSA is probably increased in some muscles after whiplash but there is insufficient evidence to confirm whether MFI is also increased. Because the available data were limited, meta-analyses of only multifidus were performed. In chronic whiplash multifidus CSA was significantly increased at C5 (Z = 3.51, p < 0.01) and C6 (Z = 2.66, p < 0.01); and MFI was significantly increased at C7 only (Z = 2.52, p < 0.01) but the heterogeneity was unacceptably high (I2 = 83%). CONCLUSIONS The strength of the evidence for cervical muscle morphometric changes on MR images after whiplash is inconsistent for CSA and MFI. Future study designs should be standardised with quantification of three-dimensional muscle morphometry.
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Affiliation(s)
- Daniel S Owers
- Australian Capital Territory Health, Canberra Hospital, Woden, ACT, 2605, Australia
| | - Diana M Perriman
- Australian Capital Territory Health, Canberra Hospital, Woden, ACT, 2605, Australia; Trauma and Orthopaedic Research Unit, Canberra Hospital, Woden, ACT, 2605, Australia; Medical School, College of Health and Medicine, Australian National University, Canberra, ACT, 2601, Australia
| | - Paul N Smith
- Australian Capital Territory Health, Canberra Hospital, Woden, ACT, 2605, Australia; Trauma and Orthopaedic Research Unit, Canberra Hospital, Woden, ACT, 2605, Australia; Medical School, College of Health and Medicine, Australian National University, Canberra, ACT, 2601, Australia
| | - Teresa Neeman
- Statistical Consulting Unit, Australian National University, Canberra, ACT, 2601, Australia
| | - Alexandra L Webb
- Medical School, College of Health and Medicine, Australian National University, Canberra, ACT, 2601, Australia.
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Tail Nerve Electrical Stimulation and Electro-Acupuncture Can Protect Spinal Motor Neurons and Alleviate Muscle Atrophy after Spinal Cord Transection in Rats. Neural Plast 2017; 2017:7351238. [PMID: 28744378 PMCID: PMC5506460 DOI: 10.1155/2017/7351238] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/08/2017] [Accepted: 03/19/2017] [Indexed: 01/12/2023] Open
Abstract
Spinal cord injury (SCI) often results in death of spinal neurons and atrophy of muscles which they govern. Thus, following SCI, reorganizing the lumbar spinal sensorimotor pathways is crucial to alleviate muscle atrophy. Tail nerve electrical stimulation (TANES) has been shown to activate the central pattern generator (CPG) and improve the locomotion recovery of spinal contused rats. Electroacupuncture (EA) is a traditional Chinese medical practice which has been proven to have a neural protective effect. Here, we examined the effects of TANES and EA on lumbar motor neurons and hindlimb muscle in spinal transected rats, respectively. From the third day postsurgery, rats in the TANES group were treated 5 times a week and those in the EA group were treated once every other day. Four weeks later, both TANES and EA showed a significant impact in promoting survival of lumbar motor neurons and expression of choline acetyltransferase (ChAT) and ameliorating atrophy of hindlimb muscle after SCI. Meanwhile, the expression of neurotrophin-3 (NT-3) in the same spinal cord segment was significantly increased. These findings suggest that TANES and EA can augment the expression of NT-3 in the lumbar spinal cord that appears to protect the motor neurons as well as alleviate muscle atrophy.
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20
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Rafee MA, Amarpal, Kinjavdekar P, Aithal HP, Wani SA, Bhat IA. Guinea pigs as an animal model for sciatic nerve injury. Neural Regen Res 2017; 12:452-457. [PMID: 28469661 PMCID: PMC5399724 DOI: 10.4103/1673-5374.202929] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The overwhelming use of rat models in nerve regeneration studies is likely to induce skewness in treatment outcomes. To address the problem, this study was conducted in 8 adult guinea pigs of either sex to investigate the suitability of guinea pig as an alternative model for nerve regeneration studies. A crush injury was inflicted to the sciatic nerve of the left limb, which led to significant decrease in the pain perception and neurorecovery up to the 4th weak. Lengthening of foot print and shortening of toe spread were observed in the paw after nerve injury. A 3.49 ± 0.35 fold increase in expression of neuropilin 1 (NRP1) gene and 2.09 ± 0.51 fold increase in neuropilin 2 (NRP2) gene were recorded 1 week after nerve injury as compared to the normal nerve. Ratios of gastrocnemius muscle weight and volume of the experimental limb to control limb showed more than 50% decrease on the 30th day. Histopathologically, vacuolated appearance of the nerve was observed with presence of degenerated myelin debris in digestion chambers. Gastrocnemius muscle also showed degenerative changes. Scanning electron microscopy revealed loose and rough arrangement of connective tissue fibrils and presence of large spherical globules in crushed sciatic nerve. The findings suggest that guinea pigs could be used as an alternative animal model for nerve regeneration studies and might be preferred over rats due to their cooperative nature while recording different parameters.
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Affiliation(s)
- Malik Abu Rafee
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
| | - Amarpal
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
| | - Prakash Kinjavdekar
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
| | - Hari Prasad Aithal
- Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
| | - Sajad Ahmad Wani
- Division of Veterinary Biotechnology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
| | - Irfan Ahmad Bhat
- Division of Veterinary Physiology, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, India
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Mandelbaum-Livnat MM, Almog M, Nissan M, Loeb E, Shapira Y, Rochkind S. Photobiomodulation Triple Treatment in Peripheral Nerve Injury: Nerve and Muscle Response. Photomed Laser Surg 2016; 34:638-645. [DOI: 10.1089/pho.2016.4095] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Mira M. Mandelbaum-Livnat
- Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Mara Almog
- Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Moshe Nissan
- Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | | | - Yuval Shapira
- Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Shimon Rochkind
- Division of Peripheral Nerve Reconstruction, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
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Altered Satellite Cell Responsiveness and Denervation Implicated in Progression of Rotator-Cuff Injury. PLoS One 2016; 11:e0162494. [PMID: 27668864 PMCID: PMC5036792 DOI: 10.1371/journal.pone.0162494] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/23/2016] [Indexed: 11/25/2022] Open
Abstract
Background Rotator-cuff injury (RCI) is common and painful; even after surgery, joint stability and function may not recover. Relative contributions to atrophy from disuse, fibrosis, denervation, and satellite-cell responsiveness to activating stimuli are not known. Methods and Findings Potential contributions of denervation and disrupted satellite cell responses to growth signals were examined in supraspinatus (SS) and control (ipsilateral deltoid) muscles biopsied from participants with RCI (N = 27). Biopsies were prepared for explant culture (to study satellite cell activity), immunostained to localize Pax7, BrdU, and Semaphorin 3A in satellite cells, sectioning to study blood vessel density, and western blotting to measure the fetal (γ) subunit of acetylcholine receptor (γ-AchR). Principal component analysis (PCA) for 35 parameters extracted components identified variables that contributed most to variability in the dataset. γ-AchR was higher in SS than control, indicating denervation. Satellite cells in SS had a low baseline level of activity (Pax7+ cells labelled in S-phase) versus control; only satellite cells in SS showed increased proliferative activity after nitric oxide-donor treatment. Interestingly, satellite cell localization of Semaphorin 3A, a neuro-chemorepellent, was greater in SS (consistent with fiber denervation) than control muscle at baseline. PCAs extracted components including fiber atrophy, satellite cell activity, fibrosis, atrogin-1, smoking status, vascular density, γAchR, and the time between symptoms and surgery. Use of deltoid as a control for SS was supported by PCA findings since “muscle” was not extracted as a variable in the first two principal components. SS muscle in RCI is therefore atrophic, denervated, and fibrotic, and has satellite cells that respond to activating stimuli. Conclusions Since SS satellite cells can be activated in culture, a NO-donor drug combined with stretching could promote muscle growth and improve functional outcome after RCI. PCAs suggest indices including satellite cell responsiveness, atrogin-1, atrophy, and innervation may predict surgical outcome.
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High Fat Diet-Induced Skeletal Muscle Wasting Is Decreased by Mesenchymal Stem Cells Administration: Implications on Oxidative Stress, Ubiquitin Proteasome Pathway Activation, and Myonuclear Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:9047821. [PMID: 27579157 PMCID: PMC4992759 DOI: 10.1155/2016/9047821] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/14/2016] [Indexed: 12/20/2022]
Abstract
Obesity can lead to skeletal muscle atrophy, a pathological condition characterized by the loss of strength and muscle mass. A feature of muscle atrophy is a decrease of myofibrillar proteins as a result of ubiquitin proteasome pathway overactivation, as evidenced by increased expression of the muscle-specific ubiquitin ligases atrogin-1 and MuRF-1. Additionally, other mechanisms are related to muscle wasting, including oxidative stress, myonuclear apoptosis, and autophagy. Stem cells are an emerging therapy in the treatment of chronic diseases such as high fat diet-induced obesity. Mesenchymal stem cells (MSCs) are a population of self-renewable and undifferentiated cells present in the bone marrow and other mesenchymal tissues of adult individuals. The present study is the first to analyze the effects of systemic MSC administration on high fat diet-induced skeletal muscle atrophy in the tibialis anterior of mice. Treatment with MSCs reduced losses of muscle strength and mass, decreases of fiber diameter and myosin heavy chain protein levels, and fiber type transitions. Underlying these antiatrophic effects, MSC administration also decreased ubiquitin proteasome pathway activation, oxidative stress, and myonuclear apoptosis. These results are the first to indicate that systemically administered MSCs could prevent muscle wasting associated with high fat diet-induced obesity and diabetes.
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Functional recoveries of sciatic nerve regeneration by combining chitosan-coated conduit and neurosphere cells induced from adipose-derived stem cells. Biomaterials 2013; 35:2234-44. [PMID: 24360575 DOI: 10.1016/j.biomaterials.2013.11.081] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 11/27/2013] [Indexed: 12/13/2022]
Abstract
Suboptimal repair occurs in a peripheral nerve gap, which can be partially restored by bridging the gap with various biosynthetic conduits or cell-based therapy. In this study, we developed a combination of chitosan coating approach to induce neurosphere cells from human adipose-derived stem cells (ASCs) on chitosan-coated plate and then applied these cells to the interior of a chitosan-coated silicone tube to bridge a 10-mm gap in a rat sciatic nerve. Myelin sheath degeneration and glial scar formation were discovered in the nerve bridged by the silicone conduit. By using a single treatment of chitosan-coated conduit or neurosphere cell therapy, the nerve gap was partially recovered after 6 weeks of surgery. Substantial improvements in nerve regeneration were achieved by combining neurosphere cells and chitosan-coated conduit based on the increase of myelinated axons density and myelin thickness, gastrocnemius muscle weight and muscle fiber diameter, and step and stride lengths from gait analysis. High expressions of interleukin-1β and leukotriene B4 receptor 1 in the intra-neural scarring caused by using silicone conduits revealed that the inflammatory mechanism can be inhibited when the conduit is coated with chitosan. This study demonstrated that the chitosan-coated surface performs multiple functions that can be used to induce neurosphere cells from ASCs and to facilitate nerve regeneration in combination with a cells-assisted coated conduit.
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