The conservation of precious source of medicinal herb from traditional medicine phyllathus amarus (= P. niruri L.) was effectively conducted by in vitro propagation. The process of in vitro propagation of this culture consists of main following stages: (1) Start budding: suitable materials are meristems, apical buds and auxiliary buds; Rapid propagation: The medium for highest propagation coefficient is MS; creating complete plantlets: rapid root differentiation with good quality roots is observed in the medium MS+ NAA; in nurseries: the suitable substrate for ex-vitro stage is black sandy soils; (2) The medium able to form potassium at highest rate is MS + 2.4D; (3) The analysis of mineral compositions shows low contents of heavy metals and rare earth elements (REE), but considerably high in potassium, that may be due to diuretic activity of P. amarus.
Neutrons ; Minerals

This paper introduced DaiTu district, ThaiNguyen province, including pain, digestive disease, goiter, fever, body impairment, skin disease, urinary diseases, respiratory diseases, malnutrition, epilepsy and snake bite. The use of traditional was very poor, mainly domestic medicine and acupuncture. The factors influenced on it comprised health staffs, knowledge of traditional medicine, availability of medicinal plant, communication in the community
Medicine, Traditional ; epidemiology ; Medicine, Traditional

: Restrictive action on hyperglycemia of stem of Momordica charantia L. on some models of experimental hyperglycemia
Hyperglycemia ; Diabetes Mellitus, Type 2

The response of the malarial parasite, Plasmodium falciparum to a number of Vietnamese medicinal plants in vitro was carried out. The results showed that the ethanol extract of the plant materials has a stronger inhibitory effect on the growth of P. faciparum than the corresponding water extract. Both ethanol and water extracts of the leaves of Dichroa febrifuge Lour. and the ethnologic extracts from the leaves of Parthenium hysterrophorus L. and Harrisonia perforate (Blanco) Merr. have a clear effect on the chloroquine sensitivity as well as the chloroquine resistant P. falciparum strain
Plants, Medicinal ; Antimalarials ; Plasmodium falciparum

From the aerial parts of Siegesbeckia orientalis L. (Asteraceae) growing in Vietnam, rutin was isolated for the first time and determined qualitatively and quantitatively by reversed phase high performance liquid chromatography. Rutin exhibited inhibitory effects on gram positive bacteria and found to be inactive against gram negative bacteria and proved to possess a clear antioxidative activity
Rutin ; isolation & purification ; Plants, Medicinal ; Medicine, Traditional

The author was studied lethal toxicity of 'Sinh Tinh Thang', which prepared from traditional herbal on experimental mice and rabbits. The results showed that medication hadn't effect to hematological and biochemical indexes.
toxicity ; Medicine, Traditional

The chemical composition of the leaves of Artemisia annua L. has been investigated Besides artemisinine, an antimalarial compound - six other terpenes such as amyrinacetate, artemisinic acid, a-amyrine, b-sitosterol, stigmasterol and arteanuine have been found. Their structures were identified by spectroscopic methods
Terpenes ; chemistry ; Plants, Medicinal ; Medicine, Traditional

This paper introduced a traditional medicinal plant - phyllanthus amarus Euphorbiaceae. The researches on the this plant showed that the plant had an effect on the treatment of viral hepatitis. During the treatment, it should assure the indication, contraindication, administration, dosage and dietary and accommodation regime.
Hepatitis, Viral, Human ; Phyllanthus ; therapeutics

From a polar fraction, obtained from alcoholic root extract of Streptocaulon juventas by fractionated precipitation and liquid-liquid extractions, 5 pure compounds (St3 - St7) were isolated by chromatographical methods besides two formerly reported compounds - lupeol acetate and lupeol. Of those, the structure of St3. was deduced to be urs-12-en-3-acetyloxy by their spectroscopic data compared to those of published data of related compounds. To the best of our knowledge, this is the first time this compounds are known as constituents of the plant and also of the genus Streptocaulon
Plants, Medicinal ; Medicine, Traditional

For the first time two triterpen acetate were isolated from the leaves of Croton tonkinensis. By means of FT-IR, MS, 1H and 13C-NMR had been identified as urs-12-en-3-yl acetate and 3-O-acetyl aleuritolic acid.
Euphorbiaceae ; Plants, Medicinal ; Medicine, Traditional