Aarskog Syndrome: Deep Phenotyping and Genomic Landscape of a New Cohort Including Adult Patients.

IF 2.9 3区 医学 Q2 GENETICS & HEREDITY
Gozde Tutku Turgut, Umut Altunoglu, Şahin Avcı, Tuğba Kalaycı, Ayça Dilruba Aslanger, Volkan Karaman, Zehra Oya Uyguner, Hülya Kayserili
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引用次数: 0

Abstract

Aarskog-Scott syndrome (AAS, MIM#305400) is an X-linked disorder characterized by recognizable facial features, short stature, and genitourinary and skeletal malformations. AAS is attributed to pathogenic variants in FGD1, and ~60 patients with a genetic diagnosis have been reported to date. We hereby present a molecularly confirmed cohort of 14 male AAS patients from 13 families. Among 14 patients, 12 were referred during childhood, while two were referred at adulthood due to infertility. Six out of 11 patients with available records had antenatal manifestations, comprising shortened tubular bones, growth restriction, polyhydramnios, pes equinovarus, increased nuchal translucency, fetal hypokinesia, echogenic intracardiac focus, and ambiguous genitalia. In addition to well-described AAS findings, distinctive features observed in multiple patients included variable skin findings (n = 5), renal malformations (n = 2), muscular build (n = 2), and infertility (n = 2). Cardiac (n = 4) and ocular manifestations (n = 6) were identified at significantly higher rates than previously reported. This cohort also presents new patients with osteochondritis dissecans and oligo/azoospermia, providing further evidence to acknowledge these once-reported findings as part of the disease spectrum. Eleven different FGD1 variants, including seven novel ones, were identified through targeted FGD1 sequencing. Two variants were found to be recurrent, detected in two independent families. Our study provides additional insights into the clinical and genotypic landscape of AAS through the largest molecularly confirmed cohort, including two adult patients.

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来源期刊
Clinical Genetics
Clinical Genetics 医学-遗传学
CiteScore
6.50
自引率
0.00%
发文量
175
审稿时长
3-8 weeks
期刊介绍: Clinical Genetics links research to the clinic, translating advances in our understanding of the molecular basis of genetic disease for the practising clinical geneticist. The journal publishes high quality research papers, short reports, reviews and mini-reviews that connect medical genetics research with clinical practice. Topics of particular interest are: • Linking genetic variations to disease • Genome rearrangements and disease • Epigenetics and disease • The translation of genotype to phenotype • Genetics of complex disease • Management/intervention of genetic diseases • Novel therapies for genetic diseases • Developmental biology, as it relates to clinical genetics • Social science research on the psychological and behavioural aspects of living with or being at risk of genetic disease
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