supported by grants from the National Natural Science Foundation of China(81330089,30925042,and 30801508);the Ministry of Science and Technology of China(2012ZX09301001-003)
Houttuynia cordata Thunb. is a traditional herb used for clearing heat and eliminating toxins,and has also been used for the treatment of severe acute respiratory syndrome(SARS). In vitro, the crude H. cordata polysac...