Antidepressant effect of Epimedium brevicornum extracts Antidepressive-like effects of total flavonoids from Apocynum venetum leaves and their mechanisms Screening of Antidepressant Fractions of Banxia Houpu Decoction Antidepressant effect of acute administration with Jianyate Hao (JYTH) and its possible mechanism Antidepressive-like effects of total flavonoids from Apocynum venetum leaves and their mechanisms