Traditional medicine for treatment of neurodegenerative diseases.

Neurodegenerative diseases (NDD), such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS), are one of leading causes of death all over the world. Traditional medicine (TM), especially traditional Chinese medicine (TCM), usually having good clinical tolerability, is applied to treat NDD in China based on TCM or modern pharmacological theories. This issue on TM for treatment of NDD compiles 12 exciting manuscripts, most of which reported the efficacy and possible mechanisms of action of TM or active constituents on AD, PD, and ALS both in clinical and experimental levels.