RGD Reference Report - Frequency of cystic fibrosis transmembrane conductance regulator gene mutations and 5T allele in patients with allergic bronchopulmonary aspergillosis.

General

Frequency of cystic fibrosis transmembrane conductance regulator gene mutations and 5T allele in patients with allergic bronchopulmonary aspergillosis.
Authors:	Marchand, E Verellen-Dumoulin, C Mairesse, M Delaunois, L Brancaleone, P Rahier, JF Vandenplas, O
Citation:	Marchand E, etal., Chest. 2001 Mar;119(3):762-7.
RGD ID:	4140482
Pubmed:	PMID:11243954 (View Abstract at PubMed)
STUDY OBJECTIVE: To assess the frequency of cystic fibrosis transmembrane conductance regulator (CFTR) gene mutations in patients with allergic bronchopulmonary aspergillosis (ABPA). DESIGN: Case-control study. All subjects in the study were screened for the presence of 13 mutations in the CFTR gene (R117H, 621 + 1G(-)>T, R334 W, Delta F508, Delta I507, 1717-1G(-)>A, G542X, R553X, G551D, R1162X, 3849 + 10kbC(-)>T, W1282X, and N1303K). Moreover, they were also screened for the presence of the 5T variant in intron 8. SETTING: University hospital and community-based hospital. PATIENTS: Twenty-one white patients with ABPA participated in the study. The presence of CFTR mutations was also investigated in 43 white subjects with allergic asthma who did not show sensitization to Aspergillus fumigatus and in 142 subjects seeking genetic counseling for diseases other than cystic fibrosis (CF). RESULTS: Six patients with ABPA were found to be heterozygous for one CFTR mutation, including Delta F508 (n = 2), G542X (n = 1), R1162X (n = 1), 1717-1G(-)>A (n = 1), and R117H (n = 1). The 5T allele was not detected in ABPA patients. None of the ABPA patients showed sweat chloride concentrations > 60 mEq/L. The frequency of CFTR mutation carriers was significantly higher in ABPA patients (6 of 21 patients; 28.5%) than in control asthmatic subjects (2 of 43 subjects; 4.6%; p = 0.01) and in subjects seeking genetic counseling (6 of 142 subjects; p < 0.001). CONCLUSION: These findings indicate that in patients without a clinical diagnosis of CF, CFTR gene mutations could be involved in the development of ABPA, in association with other genetic or environmental factors.

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Term	Qualifier	Evidence	With	Reference	Notes	Source	Original Reference(s)
allergic bronchopulmonary aspergillosis		IAGP		4140482	DNA:mutations: :	RGD
allergic bronchopulmonary aspergillosis		ISO	CFTR (Homo sapiens)	4140482; 4140482	DNA:mutations: :	RGD

Objects Annotated

Genes (Rattus norvegicus)

Cftr (CF transmembrane conductance regulator)

Genes (Mus musculus)

Cftr (cystic fibrosis transmembrane conductance regulator)

Genes (Homo sapiens)

CFTR (CF transmembrane conductance regulator)

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Frequency of cystic fibrosis transmembrane conductance regulator gene mutations and 5T allele in patients with allergic bronchopulmonary aspergillosis.