STIMULATION EFFECT OF LOW LEVEL LASER THERAPY ON SCIATIC NERVE REGENERATION IN RAT

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MASHHOUDI BAREZ MOHAMMADREZA; TAJZIEHCHI MASOUD; HEIDARI MOHAMMAD HASSAN; BUSHEHRI ATTA; MOAYER FARIBORZ; Mansouri Neda; SAFAVI NAINI NILOUFAR; MOVAFAGH ABOLFAZL

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Journal: JOURNAL OF LASERS IN MEDICAL SCIENCES Year:2017 | Volume:8 | Issue:SUPPLEMENT 1 Page(s): 32-37

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Title

STIMULATION EFFECT OF LOW LEVEL LASER THERAPY ON SCIATIC NERVE REGENERATION IN RAT

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Keywords

LOW- LEVEL LASER THERAPY

PERIPHERAL NERVE REGENERATION

WALLERIAN DEGENERATION

AXONAL GROWTH

REVASCULARIZATION

SCIATIC NERVE

Abstract

Introduction: Recent studies showed that LOW- LEVEL LASER THERAPY (LLLT) accelerates the regeneration process of injured peripheral nerve tissue. The objective of this study was investigate the effect of LLLT (780 nm) on regeneration of injured right SCIATIC NERVE of male Wistar rat.Methods: In this research work, the effect of LLLT (780 nm) on the regeneration process and reconstruction of injured peripheral right side SCIATIC NERVE was investigated. Twelve adult male Wistar rats underwent surgery in aseptic conditions under general anesthesia to induce a lesion to their right side SCIATIC NERVE according to standard protocol. Before suturing the location, only the experimental group was treated by laser. The damaged nerve was directly irradiated with (2 J, 100 mW, 40 seconds). The irradiation procedure was terminated in 21 days with little improvement (4 J, 200 mW, 40 seconds) across the skin surface of experimental group. Rats were selected randomly from each group to be sacrificed on different periods and histopathological examination was carried out on the extracted nerves.Results: Significant acceleration of REVASCULARIZATION and angiogenesis of the injury site was observed in the experimental group. Furthermore, a reduction of hemorrhages and increase in blood supply was observed. Also, WALLERIAN DEGENERATION decreased while higher axonal density compared to the control rats was observed. Moreover, the cross- section analysis of the injured area on the 14th and 21st days as post- surgery showed that the nerve sheath diameter in the lesion area of the experimental group was reduced. While the ratio between thicknesses increased in the control group.Conclusion: The results of the current study suggest that laser phototherapy at 780 nm exactly could accelerate the regeneration process of injured peripheral nerves tissue.

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APA: Copy

MASHHOUDI BAREZ, MOHAMMADREZA, TAJZIEHCHI, MASOUD, HEIDARI, MOHAMMAD HASSAN, BUSHEHRI, ATTA, MOAYER, FARIBORZ, Mansouri, Neda, SAFAVI NAINI, NILOUFAR, & MOVAFAGH, ABOLFAZL. (2017). STIMULATION EFFECT OF LOW LEVEL LASER THERAPY ON SCIATIC NERVE REGENERATION IN RAT. JOURNAL OF LASERS IN MEDICAL SCIENCES, 8(SUPPLEMENT 1), 32-37. SID. https://sid.ir/paper/325927/en

Vancouver: Copy

MASHHOUDI BAREZ MOHAMMADREZA, TAJZIEHCHI MASOUD, HEIDARI MOHAMMAD HASSAN, BUSHEHRI ATTA, MOAYER FARIBORZ, Mansouri Neda, SAFAVI NAINI NILOUFAR, MOVAFAGH ABOLFAZL. STIMULATION EFFECT OF LOW LEVEL LASER THERAPY ON SCIATIC NERVE REGENERATION IN RAT. JOURNAL OF LASERS IN MEDICAL SCIENCES[Internet]. 2017;8(SUPPLEMENT 1):32-37. Available from: https://sid.ir/paper/325927/en

IEEE: Copy

MOHAMMADREZA MASHHOUDI BAREZ, MASOUD TAJZIEHCHI, MOHAMMAD HASSAN HEIDARI, ATTA BUSHEHRI, FARIBORZ MOAYER, Neda Mansouri, NILOUFAR SAFAVI NAINI, and ABOLFAZL MOVAFAGH, “STIMULATION EFFECT OF LOW LEVEL LASER THERAPY ON SCIATIC NERVE REGENERATION IN RAT,” JOURNAL OF LASERS IN MEDICAL SCIENCES, vol. 8, no. SUPPLEMENT 1, pp. 32–37, 2017, [Online]. Available: https://sid.ir/paper/325927/en

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