1.Isolation of Flavonoids from Excoecaria cochinchinensis Lour. var. cochinchinensis
Journal of Medicinal Materials - Hanoi 2003;8(4):103-107
The remedy Excoecaria cochinchinensis Lour. var. cochinchinensis (Euphorbiaceae) has been commonly used in folk medicine for the treatment of itches, furuncles, allergies. Previous reports have examined the chemical composition of the leaves, two compounds have been isolated and identified as gallic acid (FAD1) and ellagic acid (FAD 2). This study was carried out for the isolation and identification of the other chemical constituents. The leaves of E. cochinchinensis Lour. var. cochinchinensis were collected at Ha Noi city and Thai Binh province. The ethyl acetate extract of the leaves were successively chromatographed on silica gel G 60 and Sephadex LH-20 columns to afford two compounds named FAD 7 and FAD 8. The spectral analysis performed on EIMS, 1H-NMR and 13C-NMR has identified FAD7 as kaempferol 7-0-glycoside, and FAD 8 as kaempferol. These two flavonols were isolated from the leaves of the plant for the first time.
Plants
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Medicine, Traditional
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Biochemistry
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Flavonoids
2.Influence of use of iodine containing salt in the publicity on the thyroid function by some tests of nuclear medicine
Journal of Vietnamese Medicine 1998;6(2):1-5
The study was conducted in 82 simple goiter patients and 91 patients with Basedow’s disease after at least one year using iodized salt daily. The result showed:- The uptake of radioactive iodine (RAIU) by the thyroid gland of simple goiter and patients with Basedow’s disease decreased after 2 and 24 hours taking an oral dose of radioactive iodine, specially in simple goiter patients decreased 40-50%. -The serum concentrations of T3, T4, TSH were following: in simple goiter patients, the serum concentrations of T3 and TSH were little decreased and the T4 serum concentration was increased. However, all the values were still in the normal range of euthyroidism. In patients with Basedow’s diseased the serum concentrations of T3,T4,TSH have not been changed
Nuclear Medicine
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Thyroid Function Tests
3.Influence of the iodized salt program in community on the determination of thyroid gland function by using radioimmunoassay and immunometric assay
Journal of Preventive Medicine 2002;12(1):36-40
The study was conducted on 82 simple goiter patients and 91 Basedow patients after at least one year using iodized salt daily. The results showed that the uptake of radioactive iodine (RAIU) by the thyroid gland of simple goiter and Basedow patients decreased after 2 and 24 hours taking an oral dose of radioactive iodine. Especially, the decrease was 40-50% in simple goiter patients. The concentration of T3, T4, TSH in the sera was as following: in the simple goiter patients, the concentrations of T3 and TSH were slightly decreased, and the T4 serum concentration was increased. However, all the values were still within the normal range of euthyroidism. In Basedow patients, the concentrations of T3, T4, and TSH have not changed.
Iodine
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Radioimmunoassay
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Thyroid Gland
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Sodium Chloride, Dietary
4.Effect of green bean (vigra radiata wilczek) on lipid peroxidation in vitro and in vivo
Ha Thi Nguyen ; Huyen Thi Thu Nguyen
Journal of Medical Research 2007;49(3):83-90
Background: Lipid peroxidation is considered that is one of the causes of pathological processes. Green bean is not only a food of high economic value but also a good medicine. Objective: To investigate the effects of green bean on (1) the lipid peroxidation in mitochondria of rat liver cell, (2) the index in blood of rabbits exposed to radiation: the activities of antioxidant enzymes (SOD, GPx), concentrations of MDA and TAS. Subjects and methods: In vitro experimental model was used to estimate the effects of green bean on lipid peroxidation in mitochondria of rat liver and in vivo experimental model was used to investigate the effects of green bean on the activities of free radicals in blood of rabbits exposed to radiation. Results and Conclusions: (1) Total green bean decreased the lipid peroxidation in mitochondria of rat liver cell without dependence onagents induced lipid peroxidation such as Fe3+.ADP/NADPH or Cumene hydroperoxid, (2) Green bean concurrently inhibited the decreased activities of SOD, GPx, TAS and the increased concentration of MDA in blood of rabbits radiated with 5 Gy dose. \r\n', u'\r\n', u'\r\n', u'
Antioxidants
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Lipid Peroxidation
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5.clarithromycin, amoxicillin, and metronidazole of Helicobacter pylori in 3 years (2000-2002)
Journal of Vietnamese Medicine 2003;283(4):45-52
In an investigation on 215 patients (55 females, 160 males) aged 80-82, suffering from gastric, duodenal ulcer with Helicobacter pylori (+), 155 samples were isolated with a rate of successful culture of 72.1% and 116 strains of bacteria underwent an antibiogramme procedure for determining the sensitivity of the bacterium. Results showed the antibiotic resistance of metronidazole (M), clarithromycine (CLA), amoxycillin rating 54.3%, 21.6%, 18.1% respectively, with no difference concerning the age and the gender. During 3 years (2000-2002) there was a trend of enhance of resistance to 3 mentioned antibiotics, and metrodiazole got the highest resistance rate. These antibiotics are currently the most common tools to eliminate H. pylori, therefore this is a considerable concern in the treatment of gastro-duodenal ulcer of the next future
Helicobacter pylori
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Stomach Diseases
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Duodenal Ulcer
6.Effects of Naturenz - A natural compound on the health of patients exposed to A.O/Dioxin
Journal of Vietnamese Medicine 2003;284(5):34-37
Naturenz, a mixture of plant oxydase, protease, natural anti-oxydants, aminoacids and vitamins has been used for treating dioxin exposed patients. This preparation can improve the patients status. An icrease of SH-group, of total hem content and of anilin hydroxylase acitivty in blood, a decreasing of urine urobilinogen was notified on patients after administration
Dioxins
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Chemistry
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Poisons
7.Effect of green tea extract on lipid peroxydation and aortic atherosclerosis in cholesterol-fed rabbits
Journal of Vietnamese Medicine 2003;285(6):50-57
Green tea is one of the most widely consumed beverages in Vietnam. Polyphenol in green tea possess biological effects such as antitumoral, anticarciogenic, anti-inflammatory and reduce the risk of cardiovascular disease by increasing the plasma antioxidative capacity in human. Lipid peroxidation and oxidative modification of low-density lipoprotein have been implicated in human atherosclersis. Green tea extract with doses of 100 mg, 150 mg/kg body weight/day reduced levels of MDA plasma and injury of aortic atherosclerosis
Atherosclerosis
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Plant Extracts
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Tea
8.Study on chemical components of essential oil from Gaultheria punctata Blume by method GC/MS
Pharmaceutical Journal 2004;0(10):11-12
With the method of water vapor distillation using the "modified apparatus for quantifying essential oil" of Ha Noi college of Pharmacy the essential oil was analysed by GC/MS. Results found essential oil in all organs of the plant such as root, stem, small branch and leaf, but the most was in leaf. The essential oil is a yellow liquid, heavier considerably than water. In the above- ground organs, there is almost 98,45%-99,03% of methyl salicylat. In the root, this content is lower, an addition with other components such as delta- tetradecalaction caryophylen oxid, nootkalon
Chemistry
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Oils, volatile
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Gaultheria
9.Investigation of oral bacteria in Vietnam dental plaque
Journal of Vietnamese Medicine 2003;287(8):11-17
The samples of dental deposit plaque collected from 30 people in the faculty of Natural Science were stained by Gram technique. A bacterial prosperious component was detected including Gram (+) cocci, Gram (-) cocci, red and thin cell, red and long cell, straight and curved Gram (-) cells, thin spinal cells … Microorganism population on the deposit plaque under the gun includes bacteria, cocci, and spirochaetes. 3 genera were determined including Streptococcus, Lactobacillus and Actinomyces, with a highest incidence of Streptococcus. The representative genus has the characteristic similar to Streptococcus mutans and it seems that it plays an important role leading to caries
Dental Plaque
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Bacteria
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Dental Care
10.A study in the cutaneous conductivity at 12 couples of Yuan points in adults
Pharmaceutical Journal 2004;0(13):20-25
120 healthy subjects were selected and divided into two groups to study the cutaneous conductivity at 12 couples of Yuan point, group 1 including 60 subjects aged between 21 to 25 (30 males, 30 females), group 2 including 60 subjects aged between 50 to 67 (30 males, 30 females). The results: there was no difference in cutaneous conductivity at 12 couple of Yuan point of the lest and right body in both groups of ages and sexes. In female, cutaneous conductivity at 12 couple of Yuan point were diferent depending on menstrual cycle, considerably lower in the latter haft of the cycle compared to the first half of the cycle. In the same age group, cutaneous conductivity at 12 couple of Yuan point in male was lower than that in female. In the same gender group, cutaneous conductivity at 12 couple of Yuan point of the group 1 was lower that of the group 2
Administration, Cutaneous
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Adult
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Medicine, Traditional