Genetic linkage analysis of GCK and HNF1A genes in a group of families with MODY in Isfahan province

سال انتشار: 1399
محل انتشار: کنگره بین المللی علوم زیست پزشکی اصفهان
کد COI اختصاصی: ICIBS01_022
زبان مقاله: انگلیسی
تعداد مشاهده: 456

نویسندگان

MSc in Human Genetics. Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran

Mohammad Amin Tabatabaiefar

Medical genetics, PhD. Genetics and Molecular Biology Dept. Isfahan University of Medical Sciences. Isfahan. I.R. Iran

Fatemeh Tabatabaei

Isfahan Endocrine and Metabolism Reaserch Center. Isfahan University of Medical Sciences. Isfahan. I.R. Iran

Morteza Hashemzadeh Chaleshtori

Human- Molecular genetics, PhD. Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran

چکیده

Background and aims: Diabetes mellitus is a group pf metabolic disorders resulting in increased level of blood sugar. Type 1 Diabetes (T1D), Type 2 Diabetes (T2D) and monogenic diabetes are there major groups of diabetes. Maturity-onset diabetes of the young (MODY) is a monogenic diabetes that is frequently mistaken for T1D or T2D. The aim of this study was to diagnose MODY and determine the frequency of its 2 major subgroups in Isfahan diabetic population.Methods: In this descriptive-experimental study with the aim of determining type and the frequency of mutations in GCK and HNF1A genes in 26 families with MODY from Isfahan using genetic linkage analysis method and select of 4 markers for each gene. Linkage results were confirmed by fragment analysis and then all the exons of genes were sequenced in any linked families.Results: In this study from 26 families, 4 families were linked to markers of GCK gene and 3 families were linked to HNF1A gene. After sequencing of the exons of these 2 genes in the related families, some variants were found analyzed that none of them were pathogenic mutation but some polymorphisms with increasing effects on susceptibility to diabetes were found.Conclusion: in this study despite of the fact that some families were linked to markers of these 2 gene, there were any pathogenic variant in any of the patients. So it seems that the genetic profile of this population is different from other studied populations.

کلیدواژه ها

Maturity Onset Diabetes of the Youngs (MODY), Genetic linkage, STR marker, GCK gene, HNF1A gene

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