Type 2 diabetes mellitus disease risk genes identified by genome wide copy number variation scan in normal populations

Diabetes Research and Clinical Practice
Manasa PrabhanjanNallur B Ramachandra

Abstract

To identify the role of copy number variations (CNVs) on disease risk genes and its effect on disease phenotypes in type 2 diabetes mellitus (T2DM) in 12 random populations using high throughput arrays. CNV analysis was carried out on a total of 1715 individuals from 12 populations, from ArrayExpress Archive of the European Bioinformatics Institute along with our subjects using Affymetrix Genome Wide SNP 6.0 array. CNV effect on T2DM genes were analyzed using several bioinformatics tools and a molecular protein interaction network was constructed to identify the disease mechanism altered by the CNVs. Analysis showed 34.4% of the total population to be under CNV burden for T2DM, with 83 disease causal and associated genes being under CNV influence. Hotspots were identified on chromosomes 22, 12, 6, 19 and 11.Overlap studies with case cohorts revealed significant disease risk genes such as EGFR, E2F1, PPP1R3A, HLA and TSPAN8. CNVs play a significant role in predisposing T2DM in normal cohorts and contribute to the phenotypic effects. Thus, CNVs should be considered as one of the major contributors in predisposition of the disease.

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Jan 8, 2019·Journal of Computational Biology : a Journal of Computational Molecular Cell Biology·Husayn Ahmed PUNKNOWN ADBS Consortium
Mar 20, 2018·Alternatives to Laboratory Animals : ATLA·Zeeshan AliJohn J Pippin
Dec 15, 2020·The International Journal of Neuropsychopharmacology·Yutaka MizukiNorihito Yamada

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