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. 2020 Apr 27;11(4):291. doi: 10.1038/s41419-020-2488-y

Fig. 4. Antioxidative mechanism of natural antioxidants.

Fig. 4

Natural antioxidants extracted from plants exert antioxidative effects mainly through the following pathways: 1. direct clearing of ROS; 2. chelating ferric ions to inhibit ROS production; 3. improving the activities of anti-oxidases such as SOD and CAT; 4. promoting SOD mRNA expressions; 5. clearing ROS by activating the Nrf2 antioxidative pathway.