Background: Contact dermatitis and also allergic skin diseases are increasing and is becoming problem among Mongolian dental technicians. Serum total IgE and patch testing for contact allergy are needed to confirm the diagnosis. Methods: The aim of this study was to determine and discuss the results of patch tests (potassium dichromate, cobalt chloride hexahydrate and nickel sulfate) and allergic reaction (serum total IgE titer) in dental technicians. Results: In this cross-sectional study, fifty dental technicians were enrolled, aged between 25-52 years and fifty healthy students of dentistry school participated, who were aged 18-32 years. The mean average age of dental technicians was 34.4±0.91. Serum total IgE levels in dental technicians were significantly higher (p=0.03) than dental students group. Serum total IgE have direct, strong correlation with patch testing results (r=-0.759, p>0.001) in group of dental technicians. The most prevalent positive reaction was to nickel sulfate (7; 43.75%). Conclusion Due to the complex etiology of skin allergic diseases in dental technicians with suspected allergy, detailed diagnostics should be carried out in order to enable identification of allergenic substances and their elimination from the dental technician’s occupational condition.

Background: Medical education has undergone significant changes over the past few decades, with a focus on studentcentered learning, problem-based learning, competency-based learning, and outcome-based education. Among these, internal medicine diagnostics plays a crucial role in preparing students for clinical practice. However, there is limited research on the factors influencing student satisfaction in this course. Studies by Harden et al. (1999) and Irby et al. (2010) have emphasized the importance of continuous evaluation and effective teaching methods in medical education. This study aims to assess student satisfaction with the internal medicine diagnostics course within the “Physician” program at the Mongolian National University of Medical Sciences (MNUMS), aligning with these global trends. Aim: The primary objective of this study is to evaluate student satisfaction with the internal medicine diagnostics course in the Physician program. Specific objectives include: Assessing satisfaction with the diagnostics course in the 2nd year of the basic medical education program, evaluating satisfaction with the internal medicine diagnostics course in the 3rd year, exploring the relationship between these two courses. Materials and Methods: This analytical study was conducted from June 2023 to June 2024, involving 1,167 students enrolled in the “Physician” program at MNUMS. Data were collected using a 34-item questionnaire, including:Demographic information (5 questions),General satisfaction (17 questions),Internal medicine diagnostics-specific satisfaction (12 questions). Satisfaction was measured using a 5-point Likert scale (1=strongly disagree, 5=strongly agree). Data were analyzed using SPSS Statistics 26, employing descriptive statistics, ANOVA, T-tests, and regression analysis. Effect sizes were calculated using Cohen’s d and Partial Eta Squared (η²), with statistical significance set at p<0.05. Results: Overall satisfaction: The average satisfaction score was 3.98±0.73. 2nd-year diagnostics course: Highest satisfaction (4.07±0.90), particularly with “course content” (4.07±0.90). 3rd-year internal medicine diagnostics course: Lowest satisfaction (3.97±0.78), especially with “learning environment” (3.90±0.90). Gender and Year Differences: No significant gender-based differences (p>0.05). Satisfaction with the internal medicine diagnostics course decreased as students progressed to higher years (B=-0.172, p=0.016). Course Relationship: A strong positive correlation was found between the two courses (r=0.818, p<0.001), but the effect size was minimal (η²=0.008). Conclusion The above-average student satisfaction reflects the quality of the curriculum content and the effectiveness of teaching methodologies. The decline in satisfaction with internal medicine courses as students progress may be due to course difficulty and resource limitations. The weak correlation between the two subjects suggests the need for further development of integrated learning.

Psoriasis is a chronic, inflammatory, and hyperproliferative skin disease associated with the immune system and genetics. The prevalence of the disease varies depending on the study methodology, type of measure, study size, age group, case definition, and sampling techniques. Globally, psoriasis affects approximately 0.91% to 8.5% of adults and 0% to 2.1% of children. Among the risk factors, smoking and obesity have a more negative impact than alcohol and tobacco use, diet, physical inactivity, infections, drugs, and mental disorders. Psoriasis can occur at any age, and when it appears before age 30, it is defined as type I. There is a familial aggregation of the disease; the HLA-Cw6, B57, and B31 alleles and HLA-Cw2 have been observed in patients with psoriasis type I.

Background: Atopic dermatitis (AD) is a common chronic and relapsing inflammatory skin disease in young children, clinically characterized by pruritus and skin rashes. Epidemiological studies have reported that AD affects 5–30% of children and 1-10% of adults worldwide. In recent years, the use of mineral waters for the treatment of chronic skin conditions has become increasingly popular globally. Although mineral waters, particularly from Shargaljuut springs, have been traditionally used in Mongolia for various dermatological conditions, no studies have been conducted on their use in atopic dermatitis, providing the rationale for this study Aim: To evaluate the result of Shargaljuut mineral spray on disease severity, pruritus intensity, and selected physiological parameters of the skin in children with atopic dermatitis. Materials and Methods: This clinical trial study with a placebo-controlled group included children aged 2-16 years with AD. The participants were treated with Shargaljuut spray and the clinical assessment was conducted before and after the treatment, evaluating severity using SCORAD (Severity Scoring of Atopic Dermatitis), itching intensity using VAS (Visual Analog Scale), skin hydration (SCH) and transepidermal water loss (TEWL). Results: Among all participants, 81.7% (n=49) had mild atopic dermatitis based on SCORAD scores, and 18.3% (n=11) had moderate severity. According to the VAS scores, 40% (n=24) of the participants reported mild pruritus. Skin hydration was found to be severely decreased in 96.7% (n=58) of the cases, while TEWL values were within normal limits in 76.7% (n=46). Statistically significant differences were observed between the experimental and control groups at day 30 in terms of disease severity and pruritus intensity, as well as in certain skin physiological parameters (p=0.001, p=0.002). Within the experimental group, statistically significant differences were also detected in disease severity (p=0.001), pruritus intensity (p=0.002), skin hydration (p=0.002), and TEWL (p=0.001) between baseline, day 15, and day 30. A correlation was found between transepidermal water loss (TEWL) and skin hydration (r=0.566, p=0.0001). Conclusions 1. Among the children with atopic dermatitis (AD) included in the study, 81.7% (n=49) had a mild severity score according to SCORAD, 40% (n=24) had mild itching intensity based on the VAS assessment, 96.7% (n=58) had excessively dry skin, and 76.7% (n=46) showed good transepidermal water loss (TEWL) levels. 2. In the experimental group, comparisons of disease severity, itching intensity, skin hydration, and TEWL levels before and after the use of the Shargaljuut spring water spray revealed that skin hydration increased, TEWL decreased, and both disease severity and itching intensity were reduced following treatment

Background: In Mongolia, the prevalence of non-communicable diseases and their intermediate risk factors has continuously increased in recent years. From results of early detection and prevalence studies of non-communicable diseases in Mongolia, studies linking intermediate risk factors to insulin resistance are scarce. Aim: To identify the prevalence of insulin resistance among the population and study its connection with intermediate risk factors of non-communicable diseases. Materials and Methods: This study was approved by the MNUMS Ethics Committee on February 23, 2024 (2024/3- 02), and was conducted based on the data of participants who took part in the “Population-based Preventive and Early Detection Screening of Infectious and Non-Infectious Diseases” organized by the Mongolian government from 2022 to 2023. Insulin resistance was identified using the triglyceride-glucose index (TyG), calculated by the formula Ln [fasting triglycerides (mg/dL) × fasting glucose (mg/dL) / 2]. “Ln” refers to the natural logarithm, based on Euler’s number, approximately 2.71828. TyG levels were classified into low risk (<8.5), medium risk (8.5-9.0), and high risk (>9.0). Defined intermediate risk factors for non-communicable diseases according to stages of hypertension and diabetes. Results: The mean age of participants was 44.3±15.2 years, with 39.2% (n=49,270) male and 41.4% (n=49,749) residing in urban areas. Among the participants, 59.1% had overweight or obesity, 23.6% had diabetes or impaired fasting glucose, 61.4% had hypertension, and 19.7% had elevated triglycerides. Analyzing by levels of insulin resistance risk, 62.8% of the population had low risk, 22.5% medium risk, and 14.7% high risk. Comparing systolic blood pressure across levels of insulin resistance risk showed that even without central obesity or diabetes, as the level of insulin resistance increased, the level of systolic blood pressure also increased (low risk group: 117.0±11.7, medium risk group: 121.1±10.9, high risk group: 123.5±16.2 mmHg). Regression analysis of the risk of hypertension by insulin resistance risk level showed that the risk increased with higher levels of insulin resistance (medium risk group OR=1.35, p<0.0001; high risk group OR=1.63, p<0.0001). Conclusion 22.5% of the population is at medium risk and 14.7% at high risk of insulin resistance. The increase in hypertension risk with higher insulin resistance levels is statistically significant, independent of central obesity and diabetes stages.

Background: Obesity and metabolic disorders are significant contributors to hypertension and cardiovascular disease (CVD). While body mass index (BMI) and waist circumference are known to be associated with systolic blood pressure (SBP), the interplay between adiposity, glucose levels, triglycerides, and SBP is not fully understood. This study aims to investigate the relationships between BMI, waist circumference, glucose, triglycerides, and SBP in a large population-based cohort. Methods: A cross-sectional analysis was conducted on [insert total number] participants with complete data on BMI, waist circumference, blood pressure, glucose, and triglycerides. Descriptive statistics, ANOVA, Pearson correlations, mediation analysis, and multiple regression were used to explore the associations between variables. The moderation effect of glucose on the BMI-SBP relationship was examined using an interaction term in the regression model. Results: The mean age of the study population was 44.3 ± 15.2 years. The mean BMI was 26.7 ± 4.9 kg/m², and 22.7% of participants were classified as obese. Central obesity, measured by waist circumference, was prevalent in 55.9% of the population. BMI, waist circumference, glucose, and triglycerides were significantly associated with SBP (p < 0.0001). Mediation analysis showed that waist circumference partially mediated the effect of BMI on SBP. The interaction term for BMI and glucose was significant (β = 0.32, p < 0.05), indicating that glucose levels moderated the relationship between BMI and SBP, with higher glucose levels amplifying the hypertensive effect of BMI. Conclusion This study highlights the complex interplay between BMI, waist circumference, glucose, triglycerides, and SBP. Waist circumference partially mediates the effect of BMI on SBP, and glucose levels moderate this relationship, amplifying the impact of obesity on blood pressure.

Background: Modern medical education increasingly integrates Outcome- Based Education (OBE) and Problem-Based Learning (PBL) approaches to improve training quality. The Mongolian National University of Medical Sciences (MNUMS) implemented an OBE curriculum in 2013, creating a need to examine student satisfaction as a measure of program effectiveness. Student satisfaction is recognized as a key indicator of educational quality and is linked to outcomes such as graduate retention and institutional reputation. Aim: To assess the level of student satisfaction in the medical doctor (MD) training program and identify factors influencing it, in order to provide a basis for improving training quality. Materials and Methods: A cross-sectional survey was conducted in 2023– 2024 among 1167 students (third- to sixth-year MD students) at MNUMS. Participants had a mean age of 22.2 ± 1.5 years, and 79.9% were female. A questionnaire with 23 questions (including 16 Likert-scale items on satisfaction) was administered; responses were given on a 5-point Likert scale. Data were analyzed using SPSS version 26. Descriptive statistics, independent t-tests, one-way ANOVA, Pearson correlation analysis, exploratory factor analysis, and multiple linear regression were performed. All statistical tests were twotailed, and significance was set at p<0.05. Results: The satisfaction survey demonstrated high internal consistency (Cronbach’s α = 0.927). Overall satisfaction with the training program was moderately high, with a mean score of 3.51 ± 0.84 out of 5. Fourth-year students reported the highest satisfaction with teaching methods (mean 3.97 ± 0.67), whereas third-year students gave the lowest rating for the sufficiency of learning materials (mean 2.98 ± 1.01); these differences were statistically significant (p<0.001). Additionally, satisfaction with clinical training declined by the final year of study, with a mean rating of 3.16 in the sixth year compared to 3.70 in the third year (p<0.001). No significant difference in overall satisfaction was observed between male and female students (p>0.05). Exploratory factor analysis (KMO = 0.950; Bartlett’s test p<0.001) identified two key underlying factors influencing perceived training quality, which together explained 55.83% of the total variance: (1) “Curriculum organization and teaching methodology,” and (2) “Material resources and learning environment.” Correlation and regression analyses further indicated that better course organization and active teacher engagement were associated with higher student satisfaction (p<0.01). Conclusion The study shows that enhancing teaching methods and improving curriculum coherence are needed to further improve the quality of the MD training program. Additionally, strengthening educational resources and updating instructional approaches are crucial for raising satisfaction levels, particularly for senior (sixth-year) students. These findings provide an evidence- based foundation for curriculum and policy improvements to boost student satisfaction and overall educational outcomes.