Fucoidan also attenuated dopaminergic neuron death through potent antioxidative effects such as the inhibition of lipid peroxidation and activation of antioxidant enzyme (SOD, GSH-Px, and catalase) in a 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP)-induced Parkinson’s disease model [13]. The gene discussed is CAT; the disease is Parkinson disease.