Abstract
The structure of the zebrafish retina appears to be very similar to that of mammals, that is why it is used as a model for studying the eye. Indeed, the zebrafish retina can regenerate itself through mechanisms of Müller cell reprogramming. In this research, adult zebrafish were exposed to aluminum to cause damage in the retina and thus evaluate the regenerative capacity of the damaged tissue. Histological and histochemical analyses assessed the retinal structure and the neurodegenerative process, respectively. An expression analysis of PARPs was carried out to verify whether a potential oxidative DNA damage happens. In addition, some genes involved in the regeneration process (pax6a, pax2a, ngn1, and notch1a) were analyzed. The data confirmed the toxicity of aluminum which caused retinal neurodegeneration, but also highlighted the ability of zebrafish to regenerate the retinal structure, repairing the damage and confirming its use as a good model for translational studies.
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