Research progress on treatment of Alzheimer’s disease by berberine Improvement of naringein on cognition of model rats with Alzheimer’s diseases and its mechanism Effect of Xixin Decoction Granule on Tau protein toxicity in brain of rats with sporadic Alzheimer’s disease Effect of active fractions in Erjing Pill on learning dysmnesia of rat with kidney-YIN deficiency and its molecular mechanism Effect of six class of Kaixin San formulas on pharmacological and preliminary mechanism of Alzheimer‘s disease mice Puerarin alleviates cognitive impairment and tau hyperphosphorylation in APP/PS1 transgenic mice