GJB2 mutations in Mongolia: complex alleles, low frequency, and reduced fitness of the deaf.

We screened the GJB2 gene for mutations in 534 (108 multiplex and 426 simplex) probands with non-syndromic sensorineural deafness, who were ascertained through the only residential school for the deaf in Mongolia, and in 217 hearing controls. Twenty different alleles, including four novel changes, were identified. Biallelic GJB2 mutations were found in 4.

Feasibility of one-stop antenatal syphilis screening in Ulaanbaatar, Mongolia: women and providers perspectives.

Congenital syphilis can be prevented by antenatal syphilis screening, however, the complexity of delivering prenatal service can result in low screening rates, and thus lower prevention and treatment rates. One-stop antenatal syphilis screening, which includes rapid testing and treatment, is the proposed method to overcome this problem. The feasibility of this type of screening needs to be tested to dertermine its effectiveness.

One-stop service for antenatal syphilis screening and prevention of congenital syphilis in Ulaanbaatar, Mongolia: a cluster randomized trial.

Background: This cluster randomized trial was performed to test whether one-stop service could better prevent congenital syphilis than the conventional antenatal screening service in Mongolia.

Methods: Out of 14 antenatal clinics in 6 districts of Ulaanbaatar, 7 were randomly selected for the one-stop service and the remaining for the conventional service. Intervention clinics provided on-site rapid syphilis testing and immediate treatment for positive cases and their partners.

Heritability and linkage study on heart rates in a Mongolian population.

Elevated heart rate has been proposed as an independent risk factor for cardiovascular diseases, but their interrelationships are not well understood. In this study, we performed a genome-wide linkage scan in 1,026 individuals (mean age 30.6 years, 54.

Antenatal care providers' practices and opinions on the services of antenatal syphilis screening in Ulaanbaatar, Mongolia.

The objectives of this study were to review antenatal syphilis screening and to assess antenatal care providers' practices and opinions in Ulaanbaatar, Mongolia. A cross-sectional study on antenatal syphilis screening was conducted. The study settings were all 16 antenatal care clinics, and a random selection of 30 family units from six districts in Ulaanbaatar, Mongolia.

Intestinal protozoan infections and echinococcosis in the inhabitants of Dornod and Selenge, Mongolia (2003).

The status of intestinal parasitic infections and seroprevalence of cystic echinococcosis in the inhabitants in Dornod and Selenge, Mongolia, was observed with stool and serum samples from 165 and 683 residents from August 9 to August 15, 2003. A total of 10 inhabitants (6.1%) were found to be infected with protozoan cysts or oocysts by stool examinations; 7, 1 and 2 cases with Entamoeba coli, Giardia lamblia and Cryptosporidium parvum, respectively.

Coverage of antenatal syphilis screening and predictors for not being screened in Ulaanbaatar, Mongolia.

Objectives: To measure the coverage of antenatal syphilis screening and identify factors related to women not being screened.

Goal: To assess the syphilis control program in Mongolia.

Study Design: Antenatal care records of women in 16 antenatal care clinics of 6 districts were reviewed.

Clinical patterns and major causes of infertility in Mongolia.

Objective: To determine the clinical patterns and major causes of infertility in Mongolia, based on the clinical and laboratory findings of both partners, and to compare the findings with data from the published World Health Organization (WHO) multicenter study.

Methods: Four hundred and thirty infertile couples who attended the Infertility Clinic of the State Research Center on Maternal Child Health in 1998-2002 were included in the study. The couples had not had a viable birth after at least 1 year of unprotected intercourse and agreed to be fully investigated according to the WHO protocol 'Standardized Investigation of the Infertile Couple'.