Abstract
Growing evidence suggests that some individuals may exhibit symptoms of dependence to ultraviolet light, a known carcinogen, in the context of tanning. Genetic associations with tanning dependence (TD) have not yet been explored. We conducted an exome-wide association study in 79 individuals who exhibited symptoms of TD and 213 individuals with volitional exposure to ultraviolet light, but who were not TD based on three TD scales. A total of 300 000 mostly exomic single nucleotide polymorphisms primarily in coding regions were assessed using an Affymetrix Axiom array. We performed a gene burden test with Bonferroni correction for the number of genes examined (P < 0.05/14 904 = 3.36 × 10-6). One gene, patched domain containing 2 (PTCHD2), yielded a statistically significant P-value of 2.5 × 10-6 (OR = 0.27) with fewer individuals classified as TD having a minor allele at this locus. These results require replication, but are the first to support a specific genetic association with TD.
Original language | English |
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Pages (from-to) | 757-759 |
Number of pages | 3 |
Journal | Experimental Dermatology |
Volume | 23 |
Issue number | 10 |
DOIs | |
State | Published - Oct 1 2014 |
Bibliographical note
Publisher Copyright:© 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Funding
Funders | Funder number |
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National Institutes of Health (NIH) | R21CA155952 |
National Childhood Cancer Registry – National Cancer Institute | P50CA121974 |
Keywords
- Genetic association
- PTCHD2 gene
- Tanning dependence
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology
- Dermatology