Effects of low-intensity electrical stimulation and adipose derived stem cells transplantation on the time-domain analysis-based electromyographic signals in dogs with SCI

NEUROSCIENCE LETTERS

卷:696

Article

Krueger, E.^1,2  Magri, L. M. S.²  Botelho, A. S.³  Bach, F. S.⁴  Rebellato, C. L. K.⁴  Fracaro, L.⁴  Fragoso, F. Y. I.⁴  Villanova, J. A., Jr.⁴  Brofman, P. R. S.⁴  Popovic-Maneski, L.⁵ 

[1] Univ Estadual Londrina, Dept Anat, Master & Doctoral Program Rehabil Sci UEL UNOPAR, Neural Engn & Rehabil Lab, Londrina, Brazil

[2] Technol Fed Univ Parana, Grad Program Biomed Engn, Curitiba, Parana, Brazil

[3] Fed Univ Para, Belem, Para, Brazil

[4] Pontificial Catholical Univ Parana, Curitiba, Parana, Brazil

[5] Serbian Acad Arts & Sci, Inst Tech Sci, Belgrade, Serbia

关键词: Electrotherapy;    Neural rehabilitation;    Spinal cord injury;    Adipose derived mesenchymal stem cells;   

DOI  :  10.1016/j.neulet.2018.12.004

来源: Elsevier

【 摘 要 】

Introduction: The application of low-intensity electrical stimulation (LIES) to neural tissue increases neurochemical factors responsible for regeneration as nerve growth factor. Stem cell (SC) therapy for patients with Spinal cord injury (SCI) promote some increase functional improvement. Objective: Investigate the electromyographic response in paraplegic dogs undergoing LIES and SC transplantation. Methods: 27 dogs paraplegics with SCI were divided into three groups with different types of therapy. G(ADSC): two SC transplants (n = 9); G(LIES): LIES (n = 8); G(COMB): two SC transplants and LIES (n = 10). Adipose derived mesenchymal stem cells (ADSCs) were transplanted by lumbar puncture in the amount of 1.2 x 10(6) cells/50 mu L. Acupuncture needles positioned in the interspinous space were used for stimulation. The electrical stimulation was applied with a mean voltage similar to 30 mV and four consecutive modulated frequencies (5 Hz, 10 Hz, 15 Hz and 20 Hz) within 5 min each. The patients motor performance was evaluated before (Pre) the procedure and after 30 (Post(30)) and 60 (Post(60)) days, from electromyography root mean square (EMG(RMS)) registered with subcutaneous electrodes in the vastus lateralis muscle, while the animals were in quadrupedal position. Results: All three groups showed a significant intra-group increase of EMG(RMS) (Pre vs. Post(30) or Pre vs. Post(60)). However, there were no statistically significant differences between Post(30) and Post(60). The inter-group test (G(ADSC) x G(LIES) x G(COMB)) did not present significance when compared the instants Pre (p = 0.34), Post(30) (p = 0.78) and Post(60) (p = 0.64). Conclusion: Some dogs recovered motor activity, expressed by the EMG(RMS), in all groups, in pre vs. post (30 or 60 days) comparisons.

【 授权许可】

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