Abstract
We compared the clinical severity associated with the two cystic fibrosis (CF) mutations S549R(T-->G) and deltaF508. Clinical and biochemical variables of CF were compared in two age- and sex-matched groups of CF children in the United Arab Emirates (UAE). The clinical severity of mutations S549R(T-->G) and deltaF508 showed comparable patterns, with very low Shwachman scores and high sweat chloride levels. We conclude that patients homozygous for the CF mutations deltaF508 and S549R(T-->G) have a severe clinical presentation and illness and are indistinguishable on clinical grounds.
MeSH terms
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Amino Acid Substitution / genetics
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Arabs
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Child
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Child, Preschool
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Chlorides / analysis
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Cystic Fibrosis / classification
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Cystic Fibrosis / epidemiology
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Cystic Fibrosis / genetics*
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Cystic Fibrosis Transmembrane Conductance Regulator / genetics*
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DNA Mutational Analysis
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Female
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Genotype
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Guanine
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Homozygote
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Humans
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Male
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Mutation / genetics*
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Phenotype
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Polymerase Chain Reaction
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Severity of Illness Index*
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Sweat / chemistry
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Thymine
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United Arab Emirates / epidemiology
Substances
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CFTR protein, human
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Chlorides
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cystic fibrosis transmembrane conductance regulator delta F508
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Cystic Fibrosis Transmembrane Conductance Regulator
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Guanine
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Thymine