Targeting oxidative stress with natural products: A novel strategy for esophageal cancer therapy

Figure 1 Flowchart of the literature search and study selection.

Figure 2 Features of esophageal cancer oxidative stress. SOD: Superoxide dismutase; MDA: Malondialdehyde; TAOC: Total antioxidant capacity; ROS: Reactive oxygen species; TNF-α: Tumor necrosis factor alpha.

Figure 3 The structural formulae of natural products targeting oxidative stress.

Figure 4 Actions of mechanism of natural products targeting the oxidative stress for the treatment of esophageal cancer. SOD: Superoxide dismutase; MDA: Malondialdehyde; TAOC: Total antioxidant capacity. TNF-α: Tumor necrosis factor alpha; LPO: Lipid peroxid; NADPH: Nicotinamide adenine dinucleotide phosphate hydrogen; GSH: Glutathione; GSSG: Oxidized glutathione.