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FOXO 1a and FOXO 3a gene polymorphisms in association with metabolic syndrome
Institution:1. Department of Clinical and Chemical Pathology, National Research Center, Cairo, Egypt;2. Department of Pediatrics, National Research Center, Cairo, Egypt;3. Department of Internal Medicine, National Research Center, Cairo, Egypt;4. Department of Medical Biochemistry, National Research Center, Cairo, Egypt
Abstract:The prevalence and magnitude of childhood and adult obesity and diabetes are increasing dramatically. FOXO 1a and FOXO 3a will be evaluated in this study, in an effort to identify genetic polymorphisms in potential candidate genes that may be associated with body mass index (BMI), and metabolic syndrome (MS). Also to assess whether there is a relation between insulin sensitivity, and genotype, we will test the relation between fasting insulin, glucose, insulin resistance, insulin secretion and genotype.A total number of 248 presenting normal, overweight and obese individuals were recruited; 100 children and 148 adults of both sexes. They were divided by body mass index as follows, normal, overweight and obese. Lipid profile, fasting glucose and insulin HOMA-IR and HOMA-β index and RT-PCR for FOXO 1a and FOXO 3a were performed.An association was found among the studied group (children and adults) as regards foxo3a gene polymorphism and HOMA IR, HOMA B index and T-cholesterol (P = 0.022, 0.011 and 0.028, respectively), while there was only an association between LDL-C and foxo1a gene polymorphism among the studied group of children and adults (P = 0.023).In this study we demonstrated that FOXO3a mutant is correlated with HOMA-IR (marker of insulin resistance), HOMA-B index (marker of insulin secretion) and total cholesterol while as regards FOXO1a there was only an association between LDL cholesterol and mutant type of FOXO1a.
Keywords:FOXO 1a  FOXO 3a  Metabolic syndrome  Insulin resistance  Insulin secretion
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