O uso do laser de arsenieto de gálio (AS-GA) no processo de reparação muscular do rato

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

In the area of the Phisicalterapy, we search to evaluate and to rehabilitate diverse types of affections, amongst them the muscular injuries that are perhaps studied. The used resources to promote the process of repairing of these injuries are diverse, being distinguished it use of the LASER of low power. Its reparations effect already are recognized in some tissues, however, in the tissue muscular, not yet they are clear. The objective of the present study was to investigate the process of repairing of the tissue muscular in rats being used 3 different doses of the Gallium Arsenide laser (As-Ga) in two distinct periods (7 and 14 days). For this, 64 rats of the Wistar race had been used with average weight of 379,8 g (269,6g a 450,8g), distributed in two groups: group , treatment/control per seven days, and group B, treatment/control per 14 days. These in turn had been subdivided in groups of treatment with doses of 4, 8 and 20 joules/cm2 and group have controlled. To provoke the muscular injury, the animals had been carried through surgical incisions in the back of all and left one break up of skin and muscle, with one punch of biopsy of 3 mm of circumference. Twenty and four hours after the operation was initiated the treatment of the animals. The group control received simulation from the treatment. The group A received treatment/simulation per seven days consecutive whereas from group B per 14 days consecutive. After this period, the animals had been died and the muscle was removed for analysis. The histopathological analysis was carried through the repaired muscular staple fibre counting. The results had presented statistical differences (p <0,05) in the group A (7 days), between the animals that had received the treatment with the laser, for the animals of the group have controlled. However the animals of group B (14 days), had not been observed significant differences between the groups. Comparing the different doses of the laser, significant differences in none of the evaluated periods had not been observed. These results after indicate that the treatment of the laser of As-Ga improves the repairing of the tissue muscular, especially in the first week the trauma.

ASSUNTO(S)

laser laser reparing muscle reparação muscular medicina

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