CHDH-PNPLA3 Gene–Gene Interactions Predict Insulin Resistance in Children with Obesity

作者：Adela Chiriță-Emandi, Costela Lăcrimioara Șerban, Corina Paul, Nicoleta Andreescu, Iulian Velea, Alexandra Mihăilescu, Vlad Serafim, Diana-Andreea Tiugan, Paul Tutac, Cristian G. Zimbru, Maria Puiu, Mihai D. Niculescu · 发表于：Diabetes Metabolic Syndrome and Obesity · 年份：2020 · DOI：10.2147/dmso.s277268 · 被引用次数：5 · 研究领域：Liver Disease Diagnosis and Treatment、Folate and B Vitamins Research、Diabetes, Cardiovascular Risks, and Lipoproteins

Introduction: Insulin resistance plays a major role in metabolic syndrome and is recognized as the most common risk factor for non-alcoholic fatty liver disease (NAFLD). Identifying predictors for insulin resistance could optimize screening and prevention. Purpose: To evaluate the contribution of multiple single nucleotide polymorphisms across genes related to NAFLD and choline metabolism, in predicting insulin resistance in children with obesity. Methods: One hundred fifty-three children with obesity (73 girls), aged 7– 18 years, were evaluated within the NutriGen Study (ClinicalTrials.gov-NCT02837367). Insulin resistance was defined by Homeostatic Model Assessment for insulin-resistance cut-offs that accommodated pubertal and gender differences. Anthropometric, metabolic, intake-related variables, and 55 single nucleotide polymorphisms related to NAFLD and choline metabolism were evaluated. Gene–gene interaction effects were assessed using Multiple Data Reduction Software. Results: Sixty percent (93/153) of participants showed insulin resistance (58.7% of boys, 63% of girls). Children with insulin resistance presented significantly higher values for standardized body mass index, triglycerides, transaminases and plasma choline when compared to those without insulin resistance. Out of 52 single nucleotide polymorphisms analysed, the interaction between genotypes CHDH (rs12676) and PNPLA3 (rs738409) predicted insulin resistance. The model presented a 6/10 cross-validation cons...