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J Plast Reconstr Aesthet Surg. 2010 Aug;63(8):1369-74. doi: 10.1016/j.bjps.2009.06.029. Epub 2009 Jul 21.

Correlation of axillary osmidrosis to a SNP in the ABCC11 gene determined by the Smart Amplification Process (SmartAmp) method.

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1
Department of Plastic and Reconstructive Surgery, Toyoake, Japan.

Abstract

Axillary osmidrosis (AO) is caused by apocrine glands secretions that are converted to odouriferous compounds by bacteria. A potential link between AO and wet earwax type has been implicated by phenotype-based analysis. Recently, a non-synonymous single nucleotide polymorphism (SNP) 538G> A (Gly180Arg) in the human adenosine triphosphate (ATP)-binding cassette (ABC) transporter ABCC11 gene was found to determine the type of earwax. In this context, we examined a relationship between the degree of AO and the ABCC11 genotype. We have genotyped the SNP 538G> A in a total of 82 Japanese individuals (68 volunteers and 14 AO patients) by both DNA sequencing and the recently developed Smart Amplification Process (SmartAmp). The degree of AO in Japanese subjects was associated with the genotype of the ABCC11 gene as well as wet earwax type. In most AO patients investigated in this study, the G/G and G/A genotypes well correlated with the degree of AO, whereas A/A did not. The specific SmartAmp assays developed for this study provided genotypes within 30 min directly from blood samples. In East Asian countries, AO is rather infrequent. Although the judgement of the degree of AO prevalence is subjective, the SNP 538G> A in ABCC11 is a good genetic biomarker for screening for AO. The SmartAmp method-based genotyping of the ABCC11 gene would provide an accurate and practical tool for guidance of appropriate treatment and psychological management for patients.

PMID:
19625231
DOI:
10.1016/j.bjps.2009.06.029
[Indexed for MEDLINE]

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