Abstract

Over time, the animals lose organ regeneration capacity, which remains in invertebrates and vertebrates turbellarians such as fish, amphibians and some reptiles. However, understanding of the molecular and cellular mechanisms of regeneration on these groups is interesting because this knowledge can be applied in the future treatment of diseases in mammals, including humans. Laser therapy is used in the medical clinic for varying purposes, including repair of damaged tissues.Are scarce in the literature, studies have examined the action of the laser on the regeneration processes of animal organs which are characterized by the formation of blastema.This study evaluated the possible actions of the visible laser diode in the regeneration of tail gecko (Hemidactylus flaviviridis) considering the kinetics of the process.In Methodology two groups of 14 adult animals were submitted to tail induced amputation, one of them received laser treatment and the other does not. The treated and not treated groups were divided in two subgroups according to the day of sacrifice, being killed on the 11th and 21st day.It was evaluated parameters as the measure of the macroscopic length of the regenerated at different times after amputation of tail. With the obtained data was calculated: the avarage variation of the regenerated length in gecko, 11 and 22 days after the amputation of the tail, the reduction percentage of the regenerated, the moment that there were the different stages of regeneration in each group and subgroup and the percentage of subjects who achieved the growth phase of the blastema.It was also documented by photographs each stage of the regeneration process of the tail in the experimental groups. The laser therapy model used in this experiment had inhibitory action on the growth and differentiation of epimorphic regeneration of the tail gecko, Hemidactylusflaviviridis, similar to the action of other anti-inflammatory therapies.