Abstract
Marfan syndrome (MFS) is an autosomal dominant connective tissue disorder typically involving the ocular, skeletal and cardiovascular systems, and aortic aneurysms/dissection mainly contributes to its mortality. Here, we performed genetic testing of the FBN1 gene in 39 Chinese probands with Marfan/Marfan-like syndrome and their related family members by Sanger sequencing. In total, 29 pathogenic/likely pathogenic FBN1 mutations, including 17 novel ones, were identified. In addition, most MFS patients with aortic disease (62%) had a truncating or splicing mutation. These results expand the FBN1 mutation spectrum and enrich our knowledge of genotype-phenotype correlations. Genetic testing for MFS and its related aortic diseases is increasingly important for early intervention and treatment.
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