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Item type:Publication, Antioxidant Effect of GOYO-11 Against Aspirin-Induced Gastric Ulcer in Rats(Mongolian National University of Medical Sciences, 2021-07-01); ; ; ; Objectives: This study aimed to investigate the protective effects of GOYO-11 on aspirin-induced gastric ulcer formation. Methods: The prevention of aspirin-induced gastric ulcers was studied in 60 rats divided into 6 equally sized groups: healthy group (no aspirin), control group (aspirin-only), standard drug group (aspirin + omeprazole and bismuth), GOYO-11 (aspirin + GOYO-11 50 mg/kg, 100 mg/kg, 150 mg/kg, respectively). Results: The aspirin-only control group had distinctly attenuated activities of superoxide dismutase, catalase, glutathione peroxidase compared to the healthy group (p < 0.05). The control group showed a significant elevation in malondialdehyde levels compared to the healthy group (p < 0.05). The GOYO-11 high dose group had a significant elevation in superoxide dismutase levels compared to the control group (p < 0.05). The GOYO-11 middle dose group showed significant elevation in catalase, superoxide dismutase, glutathione peroxidase levels compared to the control group with a significant reduction in malondialdehyde level when compared to the control group (p < 0.05). Conclusions: GOYO-11 had a gastroprotective effect against aspirin-induced gastric ulcer rats and probably prevents ulcers by protecting the antioxidants, inhibiting lipid peroxidation (malondialdehyde), saving mucous glycoprotein, and decreasing the infiltration of inflammatory cells. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Burden of Chronic Hepatitis D in Mongolia(Mongolian National University of Medical Sciences, 2020-12-29); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Quantitative Serum HBsAg and M2BPGi Levels in Patients with Chronic Hepatitis D(Mongolian National University of Medical Sciences, 2016-11-25); ; ; ;Uyanga BayarsaikhanSumiya DorjObjectives: Quantification of serum HBsAg has several clinical significances such as acting as a biomarker for the hepatitis D virus (HDV)-RNA level and necroinflammatory activity in HDV infection. The WFA+-M2BP is a new glyco-biomarker for liver fibrosis. The aim of this study was to compare the quantitative HBsAg and M2BPGi levels between groups of HBV infected patients with or without HDV infection. Methods: Totally, 112 consecutive HBsAg carriers with or without HDV infection (median age 36 vs 38) were enrolled in the study. Serum HBsAg and M2BPGi levels were measured using commercial tests. Results: Mean qHBsAg concentrations were 3.8 ±0.6 log IU/mL and 3.5 ±0.8 log IU/mL in the HDV positive and HDV negative HBsAg carriers, respectively (p = 0.02). Yet 45 patients out of 56 HDV positive patients have HBsAg level >2000 IU/mL whereas only 33 patients in the HBV mono infected group had concentrations this high. The mean M2BPGi was a 1.2 cut-off index (COI) in the HDV negative group vs. 2.1 COI in the HDV positive group (p<0.001). Conclusion: The qHBsAg level was higher in HDV positive patients compared with HDV negative subjects. But qHBsAg levels were higher in the HBeAg positive subjects despite the presence of HDV infection. The mean M2BPGi value in the HDV positive group was higher than in HDV negative subjects. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Association Between IL-28B Polymorphism and Clinical Laboratory Features in Patients with Chronic Hepatitis D(Mongolian National University of Medical Sciences, 2017-11-25) ;Bayarsaikhan, Uyanga; ; Objectives: We aimed to determine an association between IL-28B rs12989760 single nucleotide polymorphism (SNP) and clinical laboratory parameters in patients with chronic hepatitis D. Methods: A total of 59 patients who were chronically infected with HDV were had their serum tested for the presence of qHBsAg, anti-HBs, HBeAg, anti-HBe, anti-HBc, anti-HCV, anti-HDV IgM, anti-HDV IgG, HDV RNA, HBV DNA and AFP. Liver function tests, coagulation tests and CBC were also performed. IL-28B polymorphism was performed using a TaqMan 5' allelic discrimination assay by real time PCR. Results: Of these 59 patients, 40 patients (67.8 %) carried the rs12979860CC homozygote genotype, 11 patients (18.6%) were rs12979860CC homozygote and 8 patients (13.6%) were rs12979860CT heterozygote. Alkaline phosphatase and direct bilirubin values were higher (p<0.05) and total protein levels were lower (p<0.05) in patients who were homozygotes for the T allele as opposed to the carriers of the C allele. AFP levels were significantly higher (p=0.02) in the rs12979860 TT genotype group. Liver enzymes including AST, ALT and GGT were significantly not higher in patients who carry C allele (p>.05). Conclusion: The most frequent genotype was IL-28B rs12979860CC among patients with chronic hepatitis D. The IL-28B rs12979860 polymorphism was associated with some abnormal liver function test parameters and AFP levels. Additional studies are necessary to understand the immune mechanisms of IL-28B polymorphism in HDV infection. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Prevalence of major noncommunicable diseases and risk factors by region: Findings from the National Screening(Mongolian National University of Medical Sciences, 2025-12-26); ;Enkh-Amgalan, Enkhtuguldur; ; Objective: Noncommunicable diseases (NCDs) are the leading causes of morbidity and mortality worldwide, accounting for the majority of premature deaths. Mongolia faces a particularly high burden of cardiovascular diseases, cancers, chronic respiratory diseases, and diabetes, contributing to over 80% of total deaths. This study aimed to examine the prevalence of major NCDs and associated risk factors among the adult population of Mongolia by region. Methods: This study utilized large-scale screening data from the mass screening program of adults aged over 18 years. Results: A total of 447,409 adults were included in the analyses. High prevalence of NCD risk factors was observed, including smoking (16.6-19.1%), alcohol use (5.9-11.7%), physical inactivity (76%–80%), and insufficient fruit and vegetable intake (63%–79%). Regional comparison showed that the Northern region had the highest rates of smoking (19.2%), alcohol use (13.4%), and obesity (24.7%) (p<0.001). In contrast, Ulaanbaatar reported notably higher rates of chronic gastritis and peptic ulcer disease (82.2%–18.5%) compared to other rural regions (p<0.001). Conclusion: NCD risk factors are common across all regions of Mongolia, with clear differences between them. Notably, the urban population has higher rates of stomach and esophageal inflammation and ulcers, likely linked to lifestyle factors and obesity. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Functional Abnormalities of the Liver in Diabetic Patients with and without Hepatitis C(Mongolian National University of Medical Sciences, 2019-03-31); ; ; ; Objective: We aimed to compare liver function of diabetes mellitus patients with and without viral hepatitis C using the non-alcoholic fatty liver disease fibrosis score, aspartate transaminase to platelet ratio index, Fibrosis-4 Index, Mac-2-binding protein biomarker and ultrasonic liver stiffness measurements. Methods: The study was conducted based on convenience sampling of 123 patients. Slightly more than half of the study participants were male (53%, n=64). Thirty-three of the diabetics with hepatitis (mean age 52.31±9.8 years) and 90 diabetics without hepatitis (mean age 53.26±8.58) agreed to participate. Anthropometric measurements, non-alcoholic fatty liver disease fibrosis score, aspartate transaminase to platelet ratio index, Fibrosis-4 Index, Mac-2-binding protein biomarker, and ultrasonic transient elastography measurements were compared using independent t-tests for continuous variables and Wilcoxon rank sum tests for ordinal variables. Results: The median values of the Fibrosis-4 Index for those with and without hepatitis C were 1.3 vs. 0.9 (p<.05), Mac-2-binding protein biomarker 2.0 vs. 1.3 (p<.0001), ultrasonic liver stiffness measurements 10.3 vs. 6.9 (p<.0001), aspartate transaminase to platelet ratio 0.6 vs. 0.3 (p<.001), and Non-alcoholic fatty liver disease fibrosis scores were -0.2 vs. -0.9 ( p<.004), respectively Conclusions: Diabetic patients with hepatitis had statistically significantly higher Mac-2-binding protein biomarker, NAFLD Fibrosis Scores than patients without hepatitis. However, other fibrosis test results were similar in diabetic patients with hepatitis and without hepatitis C. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Establishment of Reference Interval for M2BPGI Glyco-Biomarker in the Serum of Mongolian People(Mongolian National University of Medical Sciences, 2020-12-29); ; ; ; Objectives: Establishment of reference interval for M2BPGI glyco-biomarker in the serum of relatively healthy Mongolian people. Methods: Serum analysis for M2BPGI glyco-biomarker, hepatitis virus markers, and AFP analysis were performed using a fully automated chemiluminescence immunoassay analyzer. Non-parametric methods were used for establishment of reference interval according to the guideline of the Clinical Laboratory Standards Institute. Statistical analysis was done by using SPSS ver. 20.0; SPSS Inc., Chicago, IL software. Results: Total of 3384 people were involved in this study. Of the total participants, 40% were overweight and 31.3% were obese. Also, of the population 10.1 percent were positive for HBsAg, 17 percent were positive for Anti-HCV, and 1.1 percent had co infection of both HBV and HCV. A total of the 316 individuals met the inclusion criteria for reference interval establishment and 77 (24.4%) of them were men and 239 (75.6%) were women. The reference interval of M2BPGI glyco-biomarker for men was 0.883 ± 0.311C.O.I and for women was 0.951 ± 0.411C.O.I. Conclusion: It is determined that the reference interval for M2BPGI glyco-biomarker in the serum of relatively healthy Mongolian people was 0.936 ± 0.391C.O.I. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Elevated Ammonia Level as a Diagnostic Marker of Hepatic Encephalopathy(Mongolian National University of Medical Sciences, 2016-06-25) ;Ochirkhuree, Bayarmaa; ;Jambal, SarangerelObjectives: Hepatic encephalopathy (HE) is a common and prognostic complication of cirrhosis. It may reflect either a reversible metabolic encephalopathy, brain atrophy, edema or any combination of these conditions. The mechanisms causing brain dysfunction in liver failure are still unknown. Ammonia is the best-characterized neurotoxin that precipitates HE. The purpose of this study was to ascertain the role of ammonia in HE. Methods: A hospital-based prospective study on HE was carried out at the First Central Hospital of Mongolia and the Chingeltei-Uul District Hospital in 2011-2013. Patients with hepatic failure were subdivided into the three following groups: (1) patients without HE, (2) patients with grade l-ll HE, (3) patients with grade lll-IV HE. We took liver function tests, Model for End-Stage Liver Disease (MELD) score and blood ammonia and correlated them with the severity of encephalopathy. The mean variables ±SD, p-values, and Pearson coefficients were calculated by SPSS 17.0. Results: The total sample size was 120 and the mean age was 36.8 ±15.4 years. Elevated ammonia level was observed in every stage of HE and increased by stage (p< 0.0001) MELD score and elevated ammonia level had a strong positive correlation (r = 0.54, p = 0.0001). In patients with any infection, the ammonia level was higher (p< 0.0001) than other groups. Conclusion: Ammonia is one of the diagnostic biomarkers of HE. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Clarithromycin Resistance in Helicobacter Pylori(Mongolian National University of Medical Sciences, 2016-06-25) ;Mandkhai Bolor-Erdene; Objectives: Eradication rates of Helicobacter pylori with standard triple therapy are disappointing in studies from several countries. The main reason for failure was found to be bacterial resistance to one of the most commonly used antibiotics, clarithromycin. Our aim was to determine the prevalence of clarithromycin resistance among H. pylori strains isolated from Mongolians and the presence of associated mutations to these antibiotics. Methods: All urease-positive samples were cultured according to the standard microbiological procedures. H. pylori strains were grown under microaerophilic conditions on H. pyloriselective agar. H. pylori antibiotic sensitivity was examined using the E-test method. The GenoType HelicoDR, which employs reverse hybridization, was used to confirm the presence of H. pylori, determine its susceptibility to antimicrobials and detect mutations conferring resistance to clarithromycin. Results: Ourfindings show that 51 (53.7%) ofH. pyloristrains were resistantto clarithromycin. Mutations were observed in 32 (53.7%) strains with A2147G being the most prevalent, A2146G being the least prevalent and A2146C point mutation being undetected. Conclusion: In the present study, H. pylori strains with moderate-level clarithromycin resistance are more frequently found and clarithromycin is associated with point mutation A2147G in Mongolians. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Risk Factors for Hepatitis B and C Infection in 10 to 40 Year Olds in Mongolia(Mongolian National University of Medical Sciences, 2019-12-29); ; ; ; Objective: To determine the prevalence of hepatitis B and C infection and its risk factors in Mongolians from 10 to 40 years of age. Method: Randomly selected Mongolians underwent phlebotomy and completed a questionnaire about their medical and family history and risk factors. Participants were screened for qHBsAg, anti-HBs, HBeAg, anti-HBe, anti-HBc markers, and Anti-HCV. Results: 6811 people, 2900 (42.7%) males, and 3911 (57.3%) females participated. Most were from Ulaanbaatar (4685, 69%), with the remaining 2126 (31%) from rural areas. Seven percent were HbsAg positive, 4.2% were HCV positive. Of those10-20 years of age, 5.8% (29) had hepatitis B, 6% (17) had hepatitis C. Of those 21 to 40 years of age, 94.2% (469) had hepatitis B, and 94%(268) had hepatitis C. Children whose mother was HBsAg positive were at higher risk of HBsAg positivity (OR 2.152; 95% CI 1.4; 3.2, p < .0001) as well as those with male gender (OR 1.703; 95% CI 1.17;2.46, p < .005), those phlebotomized for lab tests (OR 1.768; 95% CI 1.14; 2.74, p = .011) ,and those immunized against hepatitis B (OR 0.508; 95% CI 0.35; 0.74, p < .0001). HCV infection was associated with history of dental procedures (OR 1.681; 95% CI 1.01; 2.79, p = .045), using glass syringes (OR 2.131; 95% CI 1.54; 2.95, p < .0001), and previously used needles (OR 2.411; 95% CI 1.09;5.29, p = .028). Conclusions: Among the Mongolian population between 10 and 40 years of age, 7.3% were HbsAg positive, 4.2% were Anti-HCV positive. The risk factors were maternal HbsAg positivity, utilization of glass syringes, reusing needles, phlebotomy for laboratory tests, receiving dental treatment, and the absence of hepatitis B immunization.
