• Burns · Sep 2024

    Genetic influence on scar vascularity after burn injury in individuals of European ancestry: A prospective cohort study.

    • Andrew W Stevenson, Gemma Cadby, Hilary J Wallace, Phillip E Melton, MartinLisa JLJBurn Injury Research Unit, School of Biomedical Sciences, Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, Australia; Burns Service of Western Australia, Princess Margaret Hospital for Children and Fiona , Fiona M Wood, and Mark W Fear.
    • Burn Injury Research Unit, School of Biomedical Sciences, Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, Australia. Electronic address: Andrew.stevenson@uwa.edu.au.
    • Burns. 2024 Sep 1; 50 (7): 187118841871-1884.

    AbstractAfter burn injury there is considerable variation in scar outcome, partially due to genetic factors. Scar vascularity is one characteristic that varies between individuals, and this study aimed to identify genetic variants contributing to different scar vascularity outcomes. An exome-wide array association study and gene pathway analysis was performed on a prospective cohort of 665 patients of European ancestry treated for burn injury, using their scar vascularity (SV) sub-score, part of the modified Vancouver Scar Scale (mVSS), as an outcome measure. DNA was genotyped using the Infinium HumanCoreExome-24 BeadChip, imputed to the Haplotype Reference Consortium panel. Associations between genetic variants (single nucleotide polymorphisms) and SV were estimated using an additive genetic model adjusting for sex, age, % total body surface area and number of surgical procedures, utilising linear and multinomial logistic regression. No individual genetic variants achieved the cut-off threshold for significance. Gene sets were also analysed using the Functional Mapping and Annotation (FUMA) platform, in which biological processes indirectly related to angiogenesis were significantly represented. This study suggests that SNPs in genes associated with angiogenesis may influence SV, but further studies with larger datasets are essential to validate these findings.Crown Copyright © 2024. Published by Elsevier Ltd. All rights reserved.

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