ELFN1 and type 2 diabetes mellitus: Selected DEGs that exhibited higher islet expression in T2D, BARX1, extracellular leucine-rich repeat and fibronectin type III domain containing 1 (ELFN1), Fas apoptotic inhibitory molecule 2 (FAIM2), NEFL, PAX5, PCOLCE2 and SFRP1 were overexpressed by plasmid transfection in INS1β cells.