Abstract:
An extract of Nelumbinis Semen is provided to show an effect of improving memory and learning ability and an effect of increasing brain cell proliferation during passive avoidance tests of a mouse, thereby being usefully used as a composition for preventing and treating cognitive impairment related diseases. A pharmaceutical composition for preventing and treating Alzheimer's disease, vascular dementia, Pick's disease, Creutzfeldt-jakob's disease, dementia caused by head injury or Parkinson's disease comprises 0.1-50 wt.% of 60-80% of methanol soluble extract of Nelumbinis Semen as an effective ingredient.