Houttuynia cordata

Background

Chinese Name (pinyin): Yuxingcao

Chinese Name  :

Common Name  :Houttuynia

Specific Name  : Herba houttuyniae

Scientific Name:
Collection  : The drug is collected in summer when the plant growing luxuriantly, removed from foreign matter and dried in the sun.

Description  : Stems flattened-cylindrical, twisted, 20 - 35cm long, 2 - 3mm in diameter, externally brownish yellow with several longitudinal ridges and distinct nodes. The nodes on the lower part bearing remains of fibrous roots. Textur fragile and easily broken. Leaves alternate, lamina rolled and crumpled when whole, cordate 3 - 5cm long, 3 - 4.5cm wide. Apex acuminate, margins entire, the upper surface dartk yellowish green to dark brown, the lower surface greyish green or greyish brown, petioles slender, accreted with a stipule at the base, forming a sheath. Spike terrminal, yellowish brown, odour fishy on rubbing, taste slightly astringrent.

Identification  : (1) Place a quantity of the powder into a test tube, press tightly with a glass rod, add few drops of fuchsine-sulfurous acid TS to moisten the powder at the upper part, stand for a moment. Observe through the tube wall, the moisten powder shows a pink or reddish violet color.(2). Heat under reflux 1g of the powder with 10ml of ethanol for 10 minutes and filter. To 2ml of the filtrate add small quantity of magnesium powder and 3 drops of hydrochloric acid, heat on a water bath, a red colour is produced.(3) To 25g of the drug, cut into pieces, in a rounded-bottom flask, add 250ml of water and connect a volatile oil determination tube.. Add water through the top of the tube until the granulated tube is filled. Add further 1ml of ethyl acetate, connect the tube to a reflux condenser. Heat the flask under reflux for 4 hours then allow it to stand for a few minutes, collect the ethyl acetate layer as the test solution. Dissolve methyl nonyl ketone in ethyl acetate to produce a solution containing 10µg per ml as the reference solution. Carry out the method for thin layer chromatography (Appendix Vl B) using silica gel G as the coating substance and n-hexane-ethyl acetate (9:1) as the reference solution. Apply separately to the plate 5µl of the test solution and 2µl of the reference solution. After developing and removal of the plate, dry it in air, spray with dinitrohydrazine TS. The yellow spot in the chromatogram obtained with the test solution correspond in position and color to the spot in the chromatogram obtained with the reference solution.

Processing  : Eliminate foreign matter, wash rapidly, cut into sections and dry in the sun.

Action  : To remove toxic heat, to promote the drainange of pus, and to relieve dysuria.

Indication  : lung abscess with purulent expectoration; heat in the lung with cough and dyspnea; acute dysentery; acute urinary tract infection; carbuncles and sores;

Precautions  :

Dosage  : 15 to 20 gto be boiled briefly; 30 to 50 g of the fresh herb to be decocted or pounded to make juice for oral administration. For external use, appropriate quantity to be pounded into paste for topical application or made in hot decoction for fuming and w

Storage  : Preserve in a dry place.

Evidence or the Use of Houttuynia cordata in the Treatment of Epilepesy

1st Five Results: pubmed search

Mingyang Guo, Jianqing Peng, Pengcheng Guo, Qin Wang, Lin Zhang, Huyan Shen, Fang Chen, Pingping Zhang, Siyu Lin, Han Gao, Hong Peng, Rong Mou, Jiandong Huang, Jianxin Wang, Yu-Si Luo, Ke Zhang
Inhalation of 2, 4-di-tert-butylphenol-Loaded micelles suppresses respiratory syncytial virus infection in mice.
Antiviral Res: 2024, 226;105880
[PubMed:38608838] [WorldCat.org] [DOI] (I a)

Mengyao He, Shuxin Tang, Tingting Xu, Yanan Yuan, Ting Wu, Siyi Pan, Xiaoyun Xu
Acetylation of the polysaccharide from Houttuynia cordata rhizome and their α-glucosidase inhibition mechanism.
J Food Sci: 2024;
[PubMed:38602052] [WorldCat.org] [DOI] (I a)

Yen Chi Loo, Yi-Hong Tsai, Hsieh Chen, Hui-Ping Hsieh, Yen-Chang Chen, Hsueh-Er Chen, Zhi-Hu Lin, Hung-Tse Huang, I-Min Liu, Chia-Ching Liaw, Fang-Rong Chang
##Title##
Heliyon: 2024, 10(7);e28755
[PubMed:38586372] [WorldCat.org] [DOI] (P e)

Dong Thi Linh, Quan-Doan Mai, Dao Thi Nguyet Nga, Nguyen Tuan Anh, Hoang Van Tuan, Ha Anh Nguyen, Xuan Hoa Vu, Anh-Tuan Le
Surface ligand modified silver nanoparticles-based SERS sensing platform for ultrasensitive detection of the pesticide thiram in green tea leaves: roles of coating agents in sensing performance.
RSC Adv: 2024, 14(14);9975-9984
[PubMed:38528918] [WorldCat.org] [DOI] (I e)

Su-Bin Yu, Yu-Ri Choi, Seoul-Hee Nam
GROWTH INHIBITORY EFFECT OF HOUTTUYNIA CORDATA EXTRACT ON STREPTOCOCCUS MUTANS.
Georgian Med News: 2024, (346);6-9
[PubMed:38501613] [WorldCat.org] (I p)