Molecular and phenotypic spectrum of cardio-facio-cutaneous syndrome in Chinese patients

Autor: Biyun Feng, Xin Li, Qianwen Zhang, Yirou Wang, Shili Gu, Ru-en Yao, Zhiying Li, Shiyang Gao, Guoying Chang, Qun Li, Niu Li, Lijun Fu, Jian Wang, Xiumin Wang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Orphanet Journal of Rare Diseases, Vol 18, Iss 1, Pp 1-11 (2023)
Druh dokumentu: article
ISSN: 1750-1172
DOI: 10.1186/s13023-023-02878-0
Popis: Abstract Background Cardio-facio-cutaneous (CFC) syndrome is a RASopathy subtype that presents with unique craniofacial dysmorphology, congenital heart disease, dermatologic abnormalities, growth retardation, and intellectual disability. This study describes the phenotypic spectrum of CFC in China and its association with CFC syndrome gene variants. Results Twenty Chinese CFC patients, aged 0.6–9.5 years old, were included in this study and their clinical phenotypic spectrum was compared with that of 186 patients with CFC from non-Chinese ethnicities. All 20 Chinese patients with CFC carried de novo heterozygous BRAF, MAP2K1, and MAP2K2 variants. Two novel variants were detected and consistently predicted to be deleterious using bioinformatic tools. The clinical features of CFC in the Chinese patients included hypertrophic cardiomyopathy (2/20, 10%), pulmonary valve stenosis (2/20, 10%), curly or sparse hair (7/20, 35%), epilepsy (1/20, 5%), and hypotonia (10/20, 50%); these features were less frequently observed in Chinese patients than non-Chinese patients (p
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