Abstract
Endogenously or exogenously generated oxidative stress impair organs, especially brain. Also, the oxidative stress appears to be a negative factor on normal brain function, like memory and cognition. Our result showed that BF-7, extracted from Bombyx mori, effectively diminished oxidative stress, leading to the protection of neuron from reactive oxygen species donated by $FeSO_4$. Clinical experiments showed that BF-7 significantly improved memory and cognitive functions of normal adults in a dose-dependent manner. Thus, our results suggest that BF-7 play a role in the improvement of brain functions by removing oxidative stress, and provide therapeutic potential role of BF-7 to protect nervous system from oxidative damag.