Linked Life Data

8652643

Source:http://linkedlifedata.com/resource/pubmed/id/8652643

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-7-26
pubmed:abstractText
Surfactant protein B (SP-B) is critical to the biophysical function of surfactant. To characterize its metabolism in vivo in the newborn, we administered [35S]methionine and [3H]palmitate to newborn rabbits intravascularly. Three groups of 4 rabbits per group were killed at each of 4 time points followed by isolation of SP-B from alveolar wash and lamellar bodies. The labeling kinetics for alveolar wash associated SP-B and saturated phosphatidylcholine (Sat PC) had similar patterns. To characterize SP-B clearance from the airspace, rabbit SP-B was iodinated, mixed with [14C]dipalmitoylphosphatidylcholine and given by intratracheal injection. Alveolar washes and lamellar bodies were recovered from 4 animals at each of 7 time points. Both SP-B and Sat PC were cleared slowly from the total lung (half-life values approximately 25 h). However, SP-B was cleared more rapidly from the airspaces than was Sat PC. The ratio of [125I]SP-B to [14C]Sat PC in lamellar bodies increased 2-fold by 8 h. These results support the concept of linked secretion and clearance pathways for SP-B and Sat PC, although small differences in reuptake were detected.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
1300
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
97-102
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Surfactant protein B metabolism in newborn rabbits.
pubmed:affiliation
Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA 90509, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.