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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1990-9-18
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pubmed:abstractText |
We demonstrated previously that intravenous administration of exogenous atrial natriuretic peptide (ANP) lowers mean pulmonary arterial pressure (MPAP) in hypoxia-adapted rats. To test the hypothesis that endogenous ANP may also lower MPAP in this model, C-ANP-(4-23), a ring-deleted analogue of ANP that binds to the biologically silent ANP clearance receptor (C-ANP receptor) but not to the ANP biological receptor (B-ANP receptor), was administered intravenously as a bolus injection (10 micrograms/kg) followed by an infusion (1 micrograms.kg-1.min-1 for 60 min) to rats adapted to hypoxia (10% O2) for 4 wk and to air control rats. C-ANP-(4-23) significantly lowered MPAP in hypoxic rats but not in air controls. A statistically insignificant reduction in mean systemic arterial pressure was found in both groups after C-ANP-(4-23) administration. C-ANP-(4-23) significantly (two- to threefold) increased endogenous plasma ANP levels in both groups; the increase was not significantly different between groups. Both basal and post-C-ANP-(4-23) levels of plasma ANP were greater in hypoxia-adapted animals than in air controls; the C-ANP-induced increase in plasma ANP was not significantly different between groups. These results suggest that the endogenous ANP may modulate pulmonary vascular tone in rats with hypoxic pulmonary hypertension.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Atrial Natriuretic Factor,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Fragments,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Atrial Natriuretic Factor,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
68
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2413-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2166736-Animals,
pubmed-meshheading:2166736-Anoxia,
pubmed-meshheading:2166736-Atrial Natriuretic Factor,
pubmed-meshheading:2166736-Blood Pressure,
pubmed-meshheading:2166736-Hypertension, Pulmonary,
pubmed-meshheading:2166736-Male,
pubmed-meshheading:2166736-Peptide Fragments,
pubmed-meshheading:2166736-Pulmonary Circulation,
pubmed-meshheading:2166736-Rats,
pubmed-meshheading:2166736-Rats, Inbred Strains,
pubmed-meshheading:2166736-Receptors, Atrial Natriuretic Factor,
pubmed-meshheading:2166736-Receptors, Cell Surface
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pubmed:year |
1990
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pubmed:articleTitle |
Atrial natriuretic peptide clearance receptor agonist lowers pulmonary pressure in hypoxic rats.
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pubmed:affiliation |
Department of Medicine, University of Alabama, Birmingham 35294.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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