FIGURE 1.

Protective method of plant-derived active substances on nerves. Active plant substances exhibit rich neuroprotective methods, which can be grouped into seven categories: (1) promote the activation of glial cells, (2) promote cell proliferation, (3) regulation of Ca²⁺, (4) maintain nerve cell structure, (5) provide resistance to oxidative stress, (6) reduce inflammation, and (7) anti-Alzheimer’s protein. The active substances falling into each of these seven categories are provide in the respective boxes. All the active substances could resist oxidative stress, and some substances have similar protection patterns.