Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1992-6-12
pubmed:abstractText
Preterm ventilated animals and infants with respiratory distress syndrome (RDS) develop proteinaceous alveolar edema. To study the effect of postnatal age on intravascular radiolabeled albumin accumulation into lungs, preterm lambs at 132 days gestational age were ventilated after treatment with sheep surfactant or cow surfactant extract for periods as long as 24 h. Lambs not treated with surfactant were studied for only 5 h because of severe respiratory failure. All lambs were given radiolabeled albumin by intravascular injection 1 h before they were killed, and the net recovery of the labeled albumin was measured in the lung tissue and air space as quantified by alveolar lavage. Net 1-h radiolabeled albumin recoveries in the lungs decreased from 5 to 6% soon after birth to 0.9% at 24 h in the surfactant-treated groups (p less than 0.01). At 3 h there was less labeled albumin recovery by alveolar lavages in lambs treated with sheep surfactant than in control lambs and lambs treated with cow surfactant extract (p less than 0.05). Protein in alveolar washes from lambs treated with cow surfactant extract exceeded that in lambs treated with sheep surfactant at 3 h (p less than 0.05), but protein recoveries had decreased to similar values by 24 h, indicating a net clearance of air-space protein. These studies demonstrate a sixfold decrease in net albumin accumulation from birth to 24 h of age despite continued ventilation and oxygen exposure of the premature lamb lungs.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0003-0805
pubmed:author
pubmed:issnType
Print
pubmed:volume
145
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1005-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Lung albumin recovery in surfactant-treated preterm ventilated lambs.
pubmed:affiliation
Harbor-UCLA Medical Center, Department of Pediatrics, Torrance.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't