This study introduced the arsenic and arsenic intoxication in the world, especially in arsenic contaminated drinking water in Bangladesh. The study on the 1,200 samples of drinking water from drilling well in Hanoi and surround areas of river delta by the Center for Fresh Water and Environmental Hygiene of the Ministry of Agriculture and Rural Development found that there was a high contaminated level for the geological layer Holocene in the river delta.
Arsenic ; Poisoning

Hopea Odorata Roxb (HO) is often used by many Vietnamese people as a remedy for dental caries. However, nothing is known about which compound(s) of the material and how it (they) acts to protect the teeth. It was found in this study that the ethanol extract of Hopea odorata Roxb bark (HOE) was strongly inhibited acid production of Streptococcus mutans cells in suspension and biofilms as well. The extract also killed the organisms in acidified medium. At a concentration of 10% HOE, 90% of population was killed by 10 min and 30 min at pH 4.0 and 7.0, respectively. Killing ability of HOE was augmented when combined with hydroperoxide. In reduced pH and killing assays, the cells in biofilm appeared to be more resistant to the effect of the HOE compared to the cells in suspension. Further investigation should be needed to elucidate the anticariogenic effects of HOE
Medicine, Traditional ; Pharmaceutical Preparations

The anterior interosseous artery (AIA) plays an essential role in designing the posterior interosseous forearm flap (P.I.F.F). Understanding about anatomy of this artery permit us to find us to find out new solutions to design the P.I.F.F. in situations at which there are variations of the PIA. Objectives: (I) to evaluate the role of the anterior interosseous artery in the blood supplying to the posterior forearm region; (II) assessing the importance of anterior interosseous artery in designing the posterior interosseous forearm flap. Methods: 27 forearms of adults obove 25 years old, including 25 forearms fixed in formalin 4% and 2 fresh forearms, are objects for us to expose the AIA and PIA by different techniques. Results: There are 2-5 perforating branches of the AIA to the deep muscular layer of posterior. They connect to each other and to the muscular branch of the PIA, and their diameter becomes much larger in two cases of absence of the PIA. Branches from this series of arterial anastomoses distribute also to the skin of inferior half of posterior forearm. The posterior terminal branche of the AIA divides into the medial and recurrent branch. These two branches ascend and anastomose with the PIA and the muscular branch of the PIA, respectively. The medial branch of the posterior terminal branch is absent or disconnected with the PIA at two other cases. Conclusion: Our results indicate that the AiA supplies the inferior half and the deep muscular layer of the posterior forearm. The posterior interosseous forearm flap can still be raised in situations at which the posterior terminal branch of AIA communicates with the dorsal carpal arcus but not with the PIA and the PIA is absent.
Surgical Flaps, Surgery , Arteries

A retrospective study of 200 Kovacs has been applied in 2nd trimester abortion in 1997 and other 200 by MSP in 1998. -MSP could be efficacy in 2nd trimester abortion as Kovacs.-In first 48h, the natural abortion by MSP and Kovacs is the same.-The propotion of MSP abortion is higher than Kovacs, hospitalized stay length of MSP is shorter than Kovacs.-No infection in MSP trials
Misoprostol ; Pregnancy Trimester, Second ; Pregnancy ; Abortion, Induced

Cohort prospective study was carried out on 196 women with Papanicolaou (Pap) smears diagnosed as ASC, LSIL or AGC. Results: reference standard verification was available in 108 patients. The rate of DNA-aneuploidy in Pap smears increased significantly from cervical intraepithelial neoplasia (CIN) 1 (54%) and CIN2 (64.3%) to CIN3 or above (83.3%) in subsequent biopsies (p<0.05). Using ASC/LSIL/AGC as input cytological criteria and CIN2 or above as output histological diagnosis, positive predictive value (PPV) of conventional cytology and DNA-ICM was 35.2% and 65.9%, respectively (p<0.01). Negative predictive value (NPV) of DNA-ICM was 85.0%. Using CIN3 or above as output histological diagnosis, conventional cytology showed a PPV of 22.2%. PPV and NPV of DNA-ICM were 43.9% and 93.3%, respectively.
Uterine Cervical Diseases ; Diagnosis ; DNA

Polycystic ovarian syndrome (PCOS) was not considered as a simple disease at ovary but as a metabolic syndrome. The centre of this process is the disturbance of gonadotropin and metabolism of insulin/insulin-like growth factor 1 (IGF1). Some main symptoms: mentruation disorder, hyperandrogenaemia, obesity and hyperresistant to peripheral insulin with hyperinsulinaemia. For those patients have symptoms on skin, the local treatment is provided, other systemic treatments were used for those have metabolic diseases. Women with polycystic ovarian syndrome often are obesity. Metformin lose weight, regulate menstruation circle and increase significantly ovulation. Reducing androgen concentration can improve the symptom of acne and hypertrichosis. Infertile treatment, metformin can be effect in stimulating ovaries by clomiphen or FSH, increase the rate of having pregancy and reduce the rate of miscarriage in women with PCOS.
Polycystic Ovary Syndrome, Basal Metabolism

The study surveyed the morbidity and hospital admission of Bac Giang city population in the year 2001, especially the prevalence of cancer. 3.000 households were enrolled in the study. Data were collected and interviews were conducted. Analysis showed people had a high demand of health care in hospital, especially with cancer management. 31.1% of urban population demanded a hospital admission. In 5 year period in the city, the cancer incidence was 158.9/100.000 people in average. The highest was in 50-69 age group, and this incidence was higher in male than female
Therapeutics ; Inpatients/morbidity ; Morbidity ; Epidemiology

In Vinh Bao district, Hai Phong city in the year 2001, 825 female subjects aged 18-35 years old with first pregnancy or one child, without abortion or immature delivery, were divided into 2 groups according to BMI (For CED group: BMI < 18.5 and normal group: BMI  18.5). The prevalence of chronical energy deficit (CED) before pregnancy was 29%, among them, 1st grade CED 21.2%, 2nd grade 6.3%, 3rd grade 1.5%. The prevalence of common diseases (cough, fever, headache, diarrhoea…) in CED - 40.2%, higher than normal group - 26.3%. In general, for both two groups, morbidity reduced progressively in the course of pregnancy: the prevalence was 18.6% in the first trimestre, 8.8% in the second trimestre and 8.4% in the terminal 3rd trimestre. Considering body weight, in the first trimestre the weight gained by 0.48kg (CED group: 1.19lg, normal group 0.19kg), in 2nd trimestre, the weight gained 2.46kg (CED group 2.91kg, normal group 2.28kg), in the last 3rd trimestre 4.08kg (CED group 4.28kg, normal group 4.0kg).
Nutritional Status ; Morbidity ; Body Weight ; Pregnant Women

The average incidence/case/year of Ha Bac nitrate and chemical factory during two years (2002-2003) was 1.38 incidence/case/year (2002) and 1.63 incidence/case/year (2003). The diseases were high incidence as follows: odonto-maxial-facial disease, ear-nose-throat disease. Workers with I health level and II health level were the highest: 70.33% (2002) and 65.05% (2003). The rate of workers with III health level were very high and tend to increase, remained the rate of workers with V health level.
Health ; Nitrates ; Chemical Industry

Weight in average was 2911.4g (group of mothers with CED): 2905.6g; group of mothers without CED: 2913.8g, (boys: 2961g; girl: 2856g). Low birth weight rate was 11.6% (CED: 9.6%; normal: 12.4%); (boys: 10.4%; girls: 12.8%). Length of newborn babies in average was 48.3 cm (CED: 48.2 cm; normal: 48.4 cm), (boys: 48.6 cm; girls: 48 cm). Only 2.1% of newborn babies had length at birth lower 45 cm, nearly 98% had length at birth  45cm. Height of mother < 150 cm before pregnancy was high ralative risk to weight and length at birth of newborn babies.
Risk Factors ; Mothers ; Child ; Infant, Newborn ; Body Weight ; Body Height