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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5 Pt 1
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pubmed:dateCreated |
1993-7-21
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pubmed:abstractText |
Circulating catecholamines are widely considered to cause vasoconstriction. However, in the present study an intravenous infusion of 0.01 micrograms/kg/min epinephrine for 10 min in healthy men (n = 40, 20 to 40 years of age), which raised arterial plasma epinephrine from 100 +/- 13 to 231 +/- 22 pg/mL (mean +/- SE), increased forearm blood flow (FBF) from 2.79 +/- 0.17 to 3.45 +/- 0.25 mL/100 forearm tissue/min (P < .001), and decreased forearm vascular resistance (FVR) from 37.0 +/- 2.4 to 31.1 +/- 2.1 (arbitrary units). Further stepwise increase in epinephrine infusion rate progressively raised FBF (to a maximum 6.91 +/- 0.46) and decreased FVR (to minimum 16.7 +/- 2.0), and increased arterial plasma norepinephrine by more than 60% (P < .001). Thus, circulating epinephrine in concentrations that can be produced by mental stress has, despite its ability to increase sympathetic drive, a regional vasodilating effect in the human forearm.
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pubmed:grant | |
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 |
May
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pubmed:issn |
0895-7061
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
369-75
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pubmed:dateRevised |
2009-2-24
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pubmed:meshHeading |
pubmed-meshheading:8512661-Adult,
pubmed-meshheading:8512661-Aged,
pubmed-meshheading:8512661-Arteries,
pubmed-meshheading:8512661-Blood Pressure,
pubmed-meshheading:8512661-Epinephrine,
pubmed-meshheading:8512661-Forearm,
pubmed-meshheading:8512661-Hemodynamics,
pubmed-meshheading:8512661-Humans,
pubmed-meshheading:8512661-Injections, Intravenous,
pubmed-meshheading:8512661-Male,
pubmed-meshheading:8512661-Norepinephrine,
pubmed-meshheading:8512661-Osmolar Concentration,
pubmed-meshheading:8512661-Regional Blood Flow
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pubmed:year |
1993
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pubmed:articleTitle |
Contrasting effects of epinephrine on forearm hemodynamics and arterial plasma norepinephrine.
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pubmed:affiliation |
Department of Internal Medicine, Ullevaal University Hospital, Oslo, Norway.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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