Psidium guajava is a powerful antioxidant in vitro and can well be used as an antioxidant supplement in vivo, to minimize the damaging effects of radiation within living system, particularly by preventing DNA damage and apoptosis. Further studies with the lead molecule in the extract, may provide valuable tools that may aid in ameliorating the harmful effects of radiotherapy on normal tissues, in cancer patients.
Key words: Psidium guajava, Radiation, Oxidative stress, apoptosis, Comet assay
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