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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-9-11
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pubmed:abstractText |
The present investigation was designed to determine half-lives, distribution phases and metabolic clearance of two new cardiac peptide hormones in humans. Long-acting natriuretic peptide (LANP) and vessel dilator were infused at 100 ng/kg of b.wt./min concentrations for 60 min with their respective concentrations measured by specific radioimmunoassays in plasma during and for 3 hr after infusion. The half-life of vessel dilator was 107 min, whereas the half-life of LANP was 28 min. The average time that the respective peptides were retained in the body (mean residence time) was 214 +/- 34 min for vessel dilator and 178 +/- 12 min for LANP, which indicates that they are widely distributed outside the initial space (i.e., circulation). The metabolic clearance normalized to 1.73 m2 body surface area was 241 ml/min for vessel dilator and 249 ml/min for LANP. The total body clearance normalized to 1.73 m2 body surface area was 130 ml/min for vessel dilator and 293 ml/min for LANP. The significantly (P < .001) longer half-lives and slower metabolic clearance of LANP and vessel dilator compared with atrial natriuretic factor (half-life, 2.5 min, metabolic clearance, 582-2,581 ml/min/1.7 m2) explain why these peptides circulate at concentrations 15- to 24-fold higher than atrial natriuretic factor in healthy humans.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0022-3565
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
282
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
603-8
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9262321-Adult,
pubmed-meshheading:9262321-Area Under Curve,
pubmed-meshheading:9262321-Atrial Natriuretic Factor,
pubmed-meshheading:9262321-Delayed-Action Preparations,
pubmed-meshheading:9262321-Female,
pubmed-meshheading:9262321-Half-Life,
pubmed-meshheading:9262321-Hemodynamics,
pubmed-meshheading:9262321-Humans,
pubmed-meshheading:9262321-Infusions, Intravenous,
pubmed-meshheading:9262321-Male,
pubmed-meshheading:9262321-Middle Aged,
pubmed-meshheading:9262321-Reference Values,
pubmed-meshheading:9262321-Vasodilator Agents
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pubmed:year |
1997
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pubmed:articleTitle |
Disposition of vessel dilator and long-acting natriuretic peptide in healthy humans after a one-hour infusion.
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pubmed:affiliation |
Department of Pharmacy Practice and Pharmacy Administration, Philadelphia College of Pharmacy and Science, Pennsylvania, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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