“…Regarding the leukocyte counts, leukopenia was found in the CG animals, as expected, while a significant increase in total leukocytes and segmented neutrophils was identified in the animals that underwent weekly minor ozonated autohemotherapy. Ozone, through the transient action of H 2 O 2 , has a long-lasting and delayed action on polyunsaturated fatty acids (PUFAs) and other antioxidants, acting as a modulator of the immune system by inducing the production of cytokines in neutrophils, lymphocytes, and monocytes, which can cause leukocytosis and activation of leukocytes [ 9 , 44 , 45 ]. However, it is worth highlighting that, in the present study, the increase in total leukocyte and segmented neutrophil counts did not characterize leukocytosis, given that the values observed were within the reference range for the species, even during the nadir of the drug, when evident leukopenia was expected.…”