LRFN2 and diabetic neuropathy: For diabetic neuropathy, gene GFY (rs4802605), ADH4 (rs4148883), LRFN2 (rs61731010), PKHD1 (rs2499486), SLC11A1 (rs17235409), MATN4 (rs2072788), and PPARA (rs4253772) were associated or contributed to the biological relevance to the pathogenesis of the complication.