At a glance
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Genetic Regulation of Surfactant Deficiency in Human Newborn Infants
In Brief
An observational study evaluating Nutrient for Respiratory Distress Syndrome, Newborn. Completed, enrolled 525 participants across 1 site.
Detailed Summary
Inherited deficiencies in any one of 3 genes (surfactant protein B, surfactant protein C, and ATP-binding cassette transporter A3) can cause neonatal respiratory distress syndrome by disrupting metabolism of the pulmonary surfactant. The investigators will use state of the art methods to link specific changes in the genetic code of each of these genes with disruption of discrete steps in the metabolism of the pulmonary surfactant in human newborn infants. These studies will lead to improved diagnostic capabilities and suggest novel strategies to correct surfactant deficiency in newborn infants.
Study Details
Timeline
Interventions
We administer stable isotopically labeled precursors of surfactant phospholipids (\[1-13C1\] acetate) and of surfactant protein-B (\[5,5,5-2H3\] leucine) to infants with neonatal respiratory distress syndrome. Using mass spectrometry, we measure incorporation of stable isotopically labeled precursors in tracheal aspirates and compare surfactant phospholipid and surfactant protein-B turnover.