The leaf of the "Don la do" excoecaria cochinchinensis Lour Euphorbiaceae is used in traditional medicine for treating of allergy, pustule, eruption... The biological experiments have revealed: the "Don la do" extract, the crude flavonoid extract, the crude saponin extract, the leaf juice, the pure flavonoid F1 have actions on positive gram strains, and on fungi. The "Don la do" extract has not acute toxicity
Euphorbiaceae ; Pharmaceutical Preparations ; Medicine, Traditional

'Don la do' used in Vietnam was identified as being Excoecaria cochinchinensis Lour. Euphorbiaceae. The Don la do extract is a traditional medicine for treatment of pustule, eruption, allergy. The chemical analysis confirmed the Don la do extract contains flavonoid, saponin, coumarin, tanin, anthraglycosid, but without containing alcaloids, fatty acid, organic acids, heart glycosid. Total flavonoid content is 1.5%. Have extracted and isolated a substance F1, by preparative thin layer chromatography
chemistry ; Plants, Medicinal ; Medicine, Traditional

Artelinic acid (6d) and Metaartelic acid (8), water soluble dihydroartemisinin derivatives with antimalarial activity, were prepared by direct etherification of dihydroartemisinin (2) with appropriate hydroxymethyl z=benzoic acid.
Sesquiterpenes ; Ethers

There were 296 cases of typhoid fever of which 52 cases admitted in hospital and no death happened in a training camp for new soldiers in 55 days outbreak. Investigated the outbreak situation at local health station and outbreak area: house, dining room, kitchen, canteen, toilet, resources of water, dung and waste. The improper dung management caused environmental pollution was the main cause of outbreak. Clinical condition was a typical and treated by common and special antibiotics had good results.
Typhoid Fever ; Military Personnel ; Disease Outbreaks

Some new antimalarial water soluble derivatives of artemisinin were prepared by etherification of dihydroartemisinin with appropriate aryl alcohols. They are artelinat and metaartelinat. Influence of catalists and solvent on the etherification and the antimalarial activity of them as well as artesunat were studied.
Artelinic acid ; Pharmaceutical Preparations ; therapeutics ; malaria

The water extracts of Macrotermes anadelei and Polyrachis dives were shown to improve the memorization power of rats at the dose of 10 mg/kg body weight. After the 21-days training for one trial learning avoidance test, the time the rats remained in the bright chamber was reduced to 47.2% for those received M. anadelei, and 43.6% for P. dives, not significantly lower than Ginkgo biloba (50.6%). In Morris Water Maze, both those extracts were also proved to boost the process of learning and memorization in mice.
Plants ; Plants, Medicinal ; rats ; Memory ; learning

The tonic effect of Poliarchis dives (CT1) was studied on the change of weight of the spermatic bag in male mice. Results showed that this preparation enhanced the weight of spermatic bag by 183,33%. Testosterone-like spermatogenesis activity of the preparation was suggested
Testosterone ; mice ; Animal Experimentation

Abdominal injury include trauma on belly and abdominal injury is a common surgical emergency in our country, occupy from 10-13%. The death rate is still high:10%. In the world, the view of using laparoscopy in diagnosis and treatment for abdominal injury cases are performed effectively on almost of surgical centres. In Viet Nam, this method was applied successful at Cho Ray hospital, Viet Duc hospital and Army hospital No 108 since the year of 1990. However, in our country, the research on applying laparoscopy on diagnosis and treatment abdominal injury is limited
Abdominal Injuries ; Laparoscopy ; Diagnosis ; Therapeutics

Study was performed on 100 serum samples of patients (15-70 aged) treated of gastro-duodenal diseases and 31 healthy persons by Immunoblot assay. The results showed that: the prevalence of H.pylori positive in patients with gastric ulcer, duodenal ulcer and gastritis was 76.5, 95.8 and 73%, respectively. The prevalence of H. pylori seropositive was found 64.5% in healthy persons. The prevalence of anti-CagA and anti-VacA antibodies was 86.2% and 60.6% (respectively) in patients and was 70% and 40% (respectively) in healthy person.
Antigens, Bacterial ; Bacterial Proteins ; Helicobacter pylori ; Antibodies ;

This prospective study was conducted with 159 patients of colon cancer who underwent an endoscopy and an operation at the Hospital K in Hanoi. Most frequent symptoms were abdominal pain -81.8%, change of rectal habit- 74.2%, large bowel obstruction-12.6%. The symptoms were lasting for 10.7 months. Rigid endoscopy was performed on 11.3% of patients; and flexible on 88.7%. A majority of tumors -55.99%, were detected in sigmoid colon, 25.9% were necrotic tumors. Synchronous polyps were found in combining with 23.3% of tumors. Endoscopic accuracy reached to 96.9%. In conclusion, endoscopy is the method of choice for detecting the colon cancer
Colonic Neoplasms ; Endosonography ; diagnosis