Background: Discordant results were reported on the clinical expression of subjects bearing the D1152H CFTR mutation, and also for the small number of cases reported so far. Methods: A retrospective review of clinical, genetic and biochemical data was performed from individuals homozygous or compound heterozygous for the D1152H mutation followed in 12 Italian cystic fibrosis (CF) centers. Results: 89 subjects carrying at least D1152H on one allele were identified. 7 homozygous patients had very mild clinical expression. Over half of the 74 subjects compound heterozygous for D1152H and a I-II-III class mutation had borderline or pathological sweat test and respiratory or gastrointestinal symptoms; one third had pulmonary bacteria colonization and 10/74 cases had complications (i.e. diabetes, allergic bronchopulmonary aspergillosis, and hemoptysis). However, their clinical expression was less severe as compared to a group of CF patients homozygous for the F508del mutation. Finally, 8 subjects compound heterozygous for D1152H and a IV-V class mutation showed very mild disease. Conclusions: The natural history of subjects bearing the D1152H mutation is widely heterogeneous and is influenced by the mutation in trans.
|Titolo:||Clinical expression of patients with the D1152H CFTR mutation|
|Parole Chiave:||Cystic fibrosis; D1152H; Genotype/phenotype; Neonatal screening; Pulmonary and Respiratory Medicine; Pediatrics, Perinatology and Child Health|
|Settore Scientifico Disciplinare:||Settore MED/38 - Pediatria Generale e Specialistica|
|Data di pubblicazione:||lug-2015|
|Digital Object Identifier (DOI):||10.1016/j.jcf.2014.12.012|
|Appare nelle tipologie:||01 - Articolo su periodico|