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    Association of Apolipoprotein A-V Gene Polymorphisms and Lipid Metabolism in Mongolian Patients with Metabolic Syndrome
    (Mongolian National University of Medical Sciences, 2017-06-25) ;
    Batnanran Dagdan
    ;
    Orgil Sengeragchaa
    ;
    ;
    Objectives: Our study determined the genetic effect of Apolipoprotein A-V (APOA5) gene polymorphisms on lipid parameters in patients with metabolic syndrome (MetS). Methods: 160 patients with MetS and 144 healthy individuals were selected for the case and control groups, respectively. APOA5 gene polymorphisms (-1131T>C, IVS3+476G>A, c.1177C>T, c.1259T>C) were genotyped using PCR-RFLP. Results: Serum levels of total cholesterol and triglyceride were higher in the MetS group than the control group (p=0.028, p<0.001), while high density lipoprotein levels was lower in the MetS group than the control group (p=0.048). The -1131C allele frequency was higher in the MetS group than the control group (p=0.048). Results of regression analysis showed that APOA5−1131C carriers had increased incidences of MetS (OR=1.87, p=0.010). The frequency of the haplotype C-A-T-C was higher in the MetS group than the control group (p=0.027). In the MetS group, the triglyceride level was significantly higher in the minor allele carriers of -1131T>C, IVS3+476G>A, c.1177C>T. Conclusion: Our results suggest that, among the APOA5 SNPs, the C allele of -1131T>C polymorphism is a risk factor for MetS.
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    Higher Leptin Level among Mongolians with Metabolic Syndrome as a Predictor of Cardiovascular Risk
    (Mongolian National University of Medical Sciences, 2017-02-25)
    Batnaran Dagdan
    ;
    ;
    Orgil Sengeragchaa
    ;
    ;
    Objectives: The focus of our research was to determine and identify the cutoff level of leptin in Mongolian adults with metabolic syndrome (MS). Methods: This observed case-controlled study was performed with 259 adults (mean age 40.35±10.75; range 18-71 years old). A questionnaire and anthropological measurements were used for obtaining data. Fasting blood sugar, serum triglyceride, total cholesterol, HDL, adiponectin, leptin, and insulin were measured in fasting blood together with LDL and HOMA-IR calculations. Sensitivity and specificity were estimated for each leptin measurement, using MS as the outcome. These values were used to construct a receiver operating characteristic (ROC) curve. Results: Average leptin levels of the group with MS were 10.97±11.32 ng/ml and 23.86±11.32 ng/ml in males and females, respectively. The average leptin level of participants with MS was 17.23±1.59 ng/ml, which was significantly higher than the control group by 10.80±1.58. The MS exposed group had a much higher level of leptin than the control group (p<0.001). Leptin was the predictor of MS in both sexes (AUC-0.839, p<0.0001 for men and AUC-0.737, p<0.0001 for women). Conclusion: Leptin levels in the MS exposed group were higher than in the control group. Leptin may be a useful biomarker of cardiovascular risk in Mongolian adults.
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    Association of Candidate Gene Polymorphism with Metabolic Syndrome among Mongolian Subjects: A Case-Control Study
    (2020-09) ;
    Sengeragchaa, Orgil
    ;
    ; ;
    Dagdan, Batnaran
    Metabolic syndrome (MetS) is complex and determined by the interaction between genetic and environmental factors and their influence on obesity, insulin resistance, and related traits associated with diabetes and cardiovascular disease risk. Some dynamic markers, including adiponectin (ADIPOQ), brain-derived neurotrophic factor (BDNF), and lipoprotein lipase (LPL), are implicated in MetS; however, the influence of their genetic variants on MetS susceptibility varies in racial and ethnic groups. We investigated the association of single nucleotide polymorphism (SNP)-SNP interactions among nine SNPs in six genes with MetS's genetic predisposition in Mongolian subjects. A total of 160 patients with MetS for the case group and 144 healthy individuals for the control group were selected to participate in this study. Regression analysis of individual SNPs showed that the ADIPOQ + 45GG (odds ratio (OR) = 2.09, p = 0.011) and P+P+ of LPL PvuII (OR = 2.10, p = 0.038) carriers had an increased risk of MetS. Conversely, G allele of LPL S447X (OR = 0.45, p = 0.036) and PGC-1α 482Ser (OR = 0.26, p = 0.001) allele were estimated as protective factors, respectively. Moreover, a haplotype containing the G-P+-G combination was related to MetS. Significant loci were also related to body mass index (BMI), systolic blood pressure (SBP), serum high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), and fasting blood glucose (FBG), adipokines, and insulin as well as insulin resistance (p < 0.05). Our results confirm that ADIPOQ + 45T > G, LPL PvII, and PGC-1α Gly482Ser loci are associated with MetS in Mongolian subjects.
    Scopus© Citations 12