Graph (IMAGE) Kazan Federal University Caption Antioxidants are one of the most interesting and widely investigated compounds in life sciences due to their key role in the protection of living systems from the negative effects of free radicals. A great variety of antioxidants and discoveries of new ones give opportunities to better understand their pathways and mechanisms of action. Credit Kazan Federal University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.