Effect of hyperforin on learning and memory abilities and Aβ1-42, βAPP and BACE1 protein expressions in hippocampus of Alzheimer‘s disease model mice Effect of curcumin on expression of Aβ42 and Aβ-degrading enzyme NEP in APPswe/PS1dE9 double transgenic mice Improving effect of Tujia Medicine Tianzhusan on learning and memory impairment caused by cerebral ischemia Effect of GEPT extracts on spatial learning ability of APPV717I
transgenic mice at early stage of dementia and its possible mechanism