LINKAGE ANALYSIS OF FIRST SIX MODY GENES TO KNOWN LOCI AND SCREENING OF THREE MOST PREVALENT MODY GENES IN PAKISTANI POPULATION
Journal Title: International Journal of Genetics - Year 2011, Vol 3, Issue 1
Abstract
The pandemic of metabolic disorders is accelerating in the urbanized world posing huge burden to health and economy. The key pioneer to most of the metabolic disorders is insulin dependent diabetes mellitus or Type 1 Diabetes Mellitus (T1DM) and non-insulin dependent diabetes mellitus commonly known as Type 2 Diabetes Mellitus (T2DM). Both of these forms of diabetes are polygenic and multifactorial. A newly discovered form of diabetes is Maturity Onset Diabetes of the young (MODY). MODY is a monogenic form of diabetes and it is inherited as autosomal dominant disorder. Its age of onsets is at 14-25 years in individuals who have a strong family history of Type 2 Diabetes Mellitus (T2DM). In most of the MODY patients genes involved in mediating and controlling the expression of insulin are concerned. Till date eleven genes that cause MODY have been identified all over the world. But in Pakistan no genetic research has been done on MODY. The aims of the present study were to examine the prevalence and nature of mutation in three common MODY genes on the basis of their occurrence in European populations. These three MODY genes are HNF4-Alpha, GCK, and HNF1-Alpha. 22 members spanning four generations and 11 affected with MODY in Pakistani population were examined. To determine the linkage or exclusion study of the family to six known loci for MODY, a minimum of two micro satellite markers each of the candidate regions of these loci for MODY were genotyped in all the available individuals of this family. To identify genes involved in susceptibility to MODY and to discover new genes and mutations contributing to MODY in Pakistani population, Single Strand Conformation Polymorphism technique (SSCP) was used. Our findings highlighted that those unidentified MODY genes that facilitate to cause this form of diabetes in European population may play a central role for diabetes characterized by autosomal dominant transmission in Pakistani population.
Authors and Affiliations
K. ATTIYA, F. SAHAR, M. ISMAIL, J. AMARA
Keywords
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- EP ID EP170155
- DOI 10.9735/0975-2862.3.1.35-46
- Views 74
- Downloads 0
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