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Proceedings Paper

Low level laser therapy on injured rat muscle
Author(s): M. Mantineo; J. P. Pinheiro; A. M. Morgado
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Paper Abstract

Although studies show the clinical effectiveness of low level laser therapy (LLLT) in facilitating the muscle healing process, scientific evidence is still required to prove the effectiveness of LLLT and to clarify the cellular and molecular mechanisms triggered by irradiation. Here we evaluate the effect of different LLLT doses, using continuous illumination (830 nm), in the treatment of inflammation induced in the gastrocnemius muscle of Wistar rats, through the quantification of cytokines in systemic blood and histological analysis of muscle tissue. We verified that all applied doses produce an effect on reducing the number of inflammatory cells and the concentration of pro-inflammatory TNF-α and IL-1β cytokines. The best results were obtained for 40 mW. The results may suggest a biphasic dose response curve.

Paper Details

Date Published: 24 June 2013
PDF: 9 pages
Proc. SPIE 8803, Medical Laser Applications and Laser-Tissue Interactions VI, 88030E (24 June 2013); doi: 10.1117/12.2032496
Show Author Affiliations
M. Mantineo, Univ. de Coimbra (Portugal)
J. P. Pinheiro, Univ. de Coimbra (Portugal)
A. M. Morgado, Univ. de Coimbra (Portugal)

Published in SPIE Proceedings Vol. 8803:
Medical Laser Applications and Laser-Tissue Interactions VI
Lothar D. Lilge; Ronald Sroka, Editor(s)

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