New Locus for Skin Intrinsic Fluorescence in Type 1 Diabetes Also Associated With Blood and Skin Glycated Proteins.

Kleins Lab // Publications // Jul 01 2016

PubMed ID: 27207532

Author(s): Roshandel D, Klein R, Klein BE, Wolffenbuttel BH, van der Klauw MM, van Vliet-Ostaptchouk JV, Atzmon G, Ben-Avraham D, Crandall JP, Barzilai N, Bull SB, Canty AJ, Hosseini SM, Hiraki LT, Maynard J, Sell DR, Monnier VM, Cleary PA, Braffett BH; DCCT/EDIC Research Group, Paterson AD. New locus for skin intrinsic fluorescence in type 1 diabetes also associated with blood and skin glycated proteins. Diabetes. 2016 Jul;65(7):2060-71. doi: 10.2337/db15-1484. Epub 2016 Apr 12. PMID 27207532

Journal: Diabetes, Volume 65, Issue 7, Jul 2016

Skin fluorescence (SF) noninvasively measures advanced glycation end products (AGEs) in the skin and is a risk indicator for diabetes complications. N-acetyltransferase 2 (NAT2) is the only known locus influencing SF. We aimed to identify additional genetic loci influencing SF in type 1 diabetes (T1D) through a meta-analysis of genome-wide association studies (N = 1,359) including Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) and Wisconsin Epidemiologic Study of Diabetic Retinopathy (WESDR). A locus on chromosome 1, rs7533564 (P = 1.9 × 10(-9)), was associated with skin intrinsic fluorescence measured by SCOUT DS (excitation 375 nm, emission 435-655 nm), which remained significant after adjustment for time-weighted HbA1c (P = 1.7 × 10(-8)). rs7533564 was associated with mean HbA1c in meta-analysis (P = 0.0225), mean glycated albumin (P = 0.0029), and glyoxal hydroimidazolones (P = 0.049), an AGE measured in skin biopsy collagen, in DCCT. rs7533564 was not associated with diabetes complications in DCCT/EDIC or with SF in subjects without diabetes (nondiabetic [ND]) (N = 8,721). In conclusion, we identified a new locus associated with SF in T1D subjects that did not show similar effect in ND subjects, suggesting a diabetes-specific effect. This association needs to be investigated in type 2 diabetes.

© 2016 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered.