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2014 ; 40
(7
): 1338-44
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Response of human skin to esthetic scarification
#MMPMID24582755
Gabriel VA
; McClellan EA
; Scheuermann RH
Burns
2014[Nov]; 40
(7
): 1338-44
PMID24582755
show ga
This study was undertaken to investigate changes in RNA expression in previously
healthy adult human skin following thermal injury induced by contact with hot
metal that was undertaken as part of esthetic scarification, a body modification
practice. Subjects were recruited to have pre-injury skin and serial wound
biopsies performed. 4 mm punch biopsies were taken prior to branding and 1 h, 1
week, and 1, 2 and 3 months after injury. RNA was extracted and quality assured
prior to the use of a whole-genome based bead array platform to describe
expression changes in the samples using the pre-injury skin as a comparator.
Analysis of the array data was performed using k-means clustering and a
hypergeometric probability distribution without replacement and corrections for
multiple comparisons were done. Confirmatory q-PCR was performed. Using a k of
10, several clusters of genes were shown to co-cluster together based on Gene
Ontology classification with probabilities unlikely to occur by chance alone. OF
particular interest were clusters relating to cell cycle, proteinaceous
extracellular matrix and keratinization. Given the consistent expression changes
at 1 week following injury in the cell cycle cluster, there is an opportunity to
intervene early following burn injury to influence scar development.