| 摘要 |
<p>Disclosed is a therapeutic agent for dementia and a method for treatment of dementia. It comprises as medicinally effective component the ginsenoside Rb1 or Rg1, both being ginseng extracts. The therapeutic agent has an efficacy against neuronal cell death ascribed to beta-amyloid, a fundamental factor causing dementia such as Alzheimer's disease, by virtue of the advantages of the ginsenoside Rb1 and Rg1 acting specially on the hippocampus to activate the formation of synapses as well as the signal transduction between synapses, leading to an improvement in learning and memory.</p> |
