Fig. 3. Molecular mechanisms of plant compounds against neurodegeneration. (A) Antioxidant function of plant compounds Quercetin, Luteolin and Eugenol is depicted in the figure by signaling mechanism that activates the central molecule in the redox reaction of cell that is NF-КB. (B) Plant compounds like Apigenin, Myricetin and Genistein are known to ameliorate Amyloids in the cell by activating antioxidant functions of cell, rendering Neuroprotective function to the cell by activating various survival mechanism mitochondrial function preservation and Heat Shock Proteins (HSPs) activation. (C) Callistephin and Kuromanin are known to inhibit Nitric oxide synthase and thereby reducing the damage caused by excessive production of nitric oxide in the neuron that lead to neurodegeneration (D) Hydroxygenkwanol A, a plant derived compound is known to inhibit Poly ADP Ribose Polymerase (PARP) and clear the cytological effects of neurodegeneration. (E) Uleine is a phytochemical that is known to inhibit acetyl-choline esterase and resolve the symptoms of neurodegeneration in cholinergic neurons. (F) Azadiradione is known to ameliorate the molecular defects linked with ubiquitin proteasome system (UPS) via an unknown mechanism to clear the protein aggregation in the cell.