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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
1987-1-16
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pubmed:abstractText |
Adenosine infusion (100 micrograms X kg-1 X min-1) in humans stimulates ventilation but also causes abdominal and chest discomfort. To exclude the effects of symptoms and to differentiate between a central and peripheral site of action, we measured the effect of adenosine infused at a level (70-80 micrograms X kg-1 X min-1) below the threshold for symptoms. Resting ventilation (VE) and progressive ventilatory responses to isocapnic hypoxia and hyperoxic hypercapnia were measured in six normal men. Compared with a control saline infusion given single blind on the same day, adenosine stimulated VE [mean increase: 1.3 +/- 0.8 (SD) l/min; P less than 0.02], lowered resting end-tidal PCO2 (PETCO2) (mean fall: -3.9 +/- 0.9 Torr), and increased heart rate (mean increase: 16.1 +/- 8.1 beats/min) without changing systemic blood pressure. Adenosine increased the hypoxic ventilatory response (control: -0.68 +/- 0.4 l X min-1 X %SaO2-1, where %SaO2 is percent of arterial O2 saturation; adenosine: -2.40 +/- 1.2 l X min-1 X %SaO2-1; P less than 0.01) measured at a mean PETCO2 of 38.3 +/- 0.6 Torr but did not alter the hypercapnic response. This differential effect suggests that adenosine may stimulate ventilation by a peripheral rather than a central action and therefore may be involved in the mechanism of peripheral chemoreception.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
|
pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
61
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1762-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3781985-Adenosine,
pubmed-meshheading:3781985-Adult,
pubmed-meshheading:3781985-Anoxia,
pubmed-meshheading:3781985-Blood Pressure,
pubmed-meshheading:3781985-Heart Rate,
pubmed-meshheading:3781985-Humans,
pubmed-meshheading:3781985-Hypercapnia,
pubmed-meshheading:3781985-Male,
pubmed-meshheading:3781985-Middle Aged,
pubmed-meshheading:3781985-Oxygen Consumption,
pubmed-meshheading:3781985-Pulmonary Gas Exchange,
pubmed-meshheading:3781985-Respiration
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pubmed:year |
1986
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pubmed:articleTitle |
Effects of adenosine on ventilatory responses to hypoxia and hypercapnia in humans.
|
pubmed:publicationType |
Journal Article,
Clinical Trial,
Controlled Clinical Trial,
Research Support, Non-U.S. Gov't
|