Abstract
Genetic abnormalities of pulmonary surfactant were identified by DNA sequence analysis in 14 (12 full-term, 2 preterm) of 17 newborn infants with fatal respiratory distress of unknown etiology. Deficiency of adenosine triphosphate-binding cassette protein, member A3 (n = 12) was a more frequent cause of this phenotype than deficiency of surfactant protein B (n = 2).
MeSH terms
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ATP-Binding Cassette Transporters / genetics*
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Birth Weight
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Female
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Gestational Age
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Humans
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Immunohistochemistry
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Infant, Newborn
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Lung / diagnostic imaging
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Male
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Mutation, Missense
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Phenotype
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Pulmonary Surfactant-Associated Protein B / genetics*
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Pulmonary Surfactant-Associated Protein B / metabolism
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Pulmonary Surfactant-Associated Protein C / genetics*
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Pulmonary Surfactants*
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Respiratory Distress Syndrome, Newborn / genetics*
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Sequence Analysis, DNA*
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Ultrasonography
Substances
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ABCA3 protein, human
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ATP-Binding Cassette Transporters
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Pulmonary Surfactant-Associated Protein B
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Pulmonary Surfactant-Associated Protein C
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Pulmonary Surfactants
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SFTPC protein, human