Advances in Neuroprotective Ingredients of Medicinal Herbs by Using Cellular and Animal Models of Parkinson’s Disease

Figure 6

Chemical structure of luteolin (a), tetramethylpyrazine (b), astragaloside IV (c), theaflavin (d), and S-allylcysteine (e).

(a)

(b)

(c)

(d)

(e)