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Chinese Medical Journal ; (24): 2834-2839, 2016.
Artigo em Inglês | WPRIM | ID: wpr-230871

RESUMO

<p><b>BACKGROUND</b>Acne inversa (AI), also called hidradenitis suppurativa, is a chronic, inflammatory, recurrent skin disease of the hair follicle. Familial AI shows autosomal-dominant inheritance caused by mutations in the γ-secretase genes. This study was aimed to identify the specific mutations in the γ-secretase genes in two Chinese families with AI.</p><p><b>METHODS</b>In this study, two Chinese families with AI were investigated. All the affected individuals in the two families mainly manifested with multiple comedones, pitted scars, and a few inflammatory nodules on their face, neck, trunk, axilla, buttocks, upper arms, and thighs. Reticulate pigmentation in the flexures areas resembled Dowling-Degos disease clinically and pathologically. In addition, one of the affected individuals developed anal canal squamous cell carcinoma. Molecular mutation analysis of γ-secretase genes including PSENEN, PSEN1, and NCSTN was performed by polymerase chain reaction and direct DNA sequencing.</p><p><b>RESULTS</b>Two novel mutations of PSENEN gene were identified, including a heterozygous missense mutation c.194T>G (p.L65R) and a splice site mutation c.167-2A>G.</p><p><b>CONCLUSIONS</b>The identification of the two mutations could expand the spectrum of mutations in the γ-secretase genes underlying AI and provide valuable information for further study of genotype-phenotype correlations.</p>


Assuntos
Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Secretases da Proteína Precursora do Amiloide , Genética , Análise Mutacional de DNA , Hidradenite Supurativa , Diagnóstico , Genética , Hiperpigmentação , Diagnóstico , Proteínas de Membrana , Genética , Mutação , Linhagem , Anormalidades da Pele , Diagnóstico , Dermatopatias Genéticas , Diagnóstico , Dermatopatias Papuloescamosas , Diagnóstico
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