Purinergic receptors, based guanine and adenine purines, ROS production under physical stress and hypo/hyperbaric conditions, protein detection on several samples, cytofluorimetric analysis, confocal microscopy imaging, immunoblotting, immunostaining, neurite outgrowth assays, cell proliferation tests, mithocondrial activity, Xenopus Laevis primary cultures, cell fusion and cell lipofectamine transfection.