Document Detail


Cystic fibrosis with homozygous R553X mutation in a Taiwanese child.
MedLine Citation:
PMID:  16283068     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It has been reported that cystic fibrosis is very rare in Asians, and its clinical expression and genetic mutations are different from those found in Caucasians. We report the case of a boy who had chronic diarrhea with failure to thrive and frequent respiratory tract infections beginning at the age of 2 months. He developed bronchiectasis with chronic severe hypoxemia and pancreatic insufficiency by the age of 3 years and 5 months, which raised the consideration of cystic fibrosis. DNA analysis revealed a homozygous R553X mutation, and both his parents were subsequently proven to be R553X carriers. This case is the first report in a Taiwanese with cystic fibrosis attributable to a mutation commonly seen in Caucasians. However, the age of onset was much younger and the clinical course was more severe than those associated with Western patients. We reviewed the eight reported Taiwanese patients with cystic fibrosis, including the present case. We believe that the incidence of cystic fibrosis in Taiwan may be underestimated. Both genetic and environmental factors may play a role in the phenotypic disparity between Asians and Caucasians.
Authors:
Hui-Ju Chen; Shuan-Pei Lin; Hung-Chang Lee; Chih-Ping Chen; Nan-Chang Chiu; Han-Yang Hung; Schu-Rern Chern; Chih-Kuang Chuang
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-11-10
Journal Detail:
Title:  Journal of human genetics     Volume:  50     ISSN:  1434-5161     ISO Abbreviation:  J. Hum. Genet.     Publication Date:  2005  
Date Detail:
Created Date:  2005-12-06     Completed Date:  2006-02-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9808008     Medline TA:  J Hum Genet     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  674-8     Citation Subset:  IM    
Affiliation:
Division of Genetics, Department of Pediatrics, Mackay Memorial Hospital, 92, Section 2, Chung-Shan North Road, 10449 Taipei, Taiwan.
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MeSH Terms
Descriptor/Qualifier:
Child, Preschool
Codon, Nonsense*
Cystic Fibrosis / genetics*,  radiography
Cystic Fibrosis Transmembrane Conductance Regulator / genetics*
DNA Mutational Analysis
Genotype
Homozygote
Humans
Lung / radiography
Male
Taiwan
Tomography, X-Ray Computed
Chemical
Reg. No./Substance:
0/CFTR protein, human; 0/Codon, Nonsense; 126880-72-6/Cystic Fibrosis Transmembrane Conductance Regulator

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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