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Novel gene identified in an exome-wide association study of tanning dependence.


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.

SUBMITTER: Cartmel B 

PROVIDER: S-EPMC4204712 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature

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Novel gene identified in an exome-wide association study of tanning dependence.

Cartmel Brenda B   Dewan Andrew A   Ferrucci Leah M LM   Gelernter Joel J   Stapleton Jerod J   Leffell David J DJ   Mayne Susan T ST   Bale Allen E AE  

Experimental dermatology 20141001 10


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  ...[more]

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