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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1988-6-9
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pubmed:abstractText |
We examined the effects of pentoxifylline, coenzyme Q10 (CoQ10) and calcium hopantenate on hemoglobin-oxygen affinity in vivo and in vitro. In vitro study, pentoxifylline at 3 and 15 micrograms/ml significantly increased P50 from the placebo (27.0 +/- 0.3 Torr, mean +/- SE) to 28.2 +/- 1.7 and 28.1 +/- 1.3 Torr respectively (p less than 0.05) after 4 hours incubation. With 75 micrograms/ml pentoxifylline, P50 increased slightly to 27.8 +/- 1.4 Torr (0.05 less than p less than 0.1). 2,3-DPG was slightly higher (0.05 less than p less than 0.1) with pentoxifylline of 3 (11.15 +/- 4.12 mumol/gHb) and 75 micrograms/ml (10.62 +/- 2.32 mumol/gHb) than placebo. Other agents, 1-100 micrograms/ml of CoQ10 and 0.01-1 mg/ml of calcium hopantenate, neither P50 nor 2,3-DPG, Hb,ATP and glucose were changed compared to placebo. In vivo study, after administration of pentoxifylline 300 mg per day orally for 4 weeks to seven patients with COPD, P50 increased significantly from 29.0 +/- 0.6 to 30.4 +/- 0.6 Torr (p less than 0.05) and 2,3-DPG increased slightly from 11.67 +/- 0.56 to 14.33 +/- 1.12 mumol/gHb (p less than 0.1). These results suggest that pentoxifylline reduces hemoglobin-oxygen affinity by increasing 2,3-DPG and improves oxygen delivery to the tissues in patients with COPD.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Carbon Dioxide,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Oxyhemoglobins,
http://linkedlifedata.com/resource/pubmed/chemical/Pantothenic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Pentoxifylline,
http://linkedlifedata.com/resource/pubmed/chemical/Theobromine,
http://linkedlifedata.com/resource/pubmed/chemical/gamma-Aminobutyric Acid,
http://linkedlifedata.com/resource/pubmed/chemical/pantogab
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pubmed:status |
MEDLINE
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pubmed:issn |
0065-2598
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
222
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
341-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3129913-Carbon Dioxide,
pubmed-meshheading:3129913-Humans,
pubmed-meshheading:3129913-Hydrogen-Ion Concentration,
pubmed-meshheading:3129913-Kinetics,
pubmed-meshheading:3129913-Lung Diseases, Obstructive,
pubmed-meshheading:3129913-Oxygen,
pubmed-meshheading:3129913-Oxyhemoglobins,
pubmed-meshheading:3129913-Pantothenic Acid,
pubmed-meshheading:3129913-Partial Pressure,
pubmed-meshheading:3129913-Pentoxifylline,
pubmed-meshheading:3129913-Reference Values,
pubmed-meshheading:3129913-Theobromine,
pubmed-meshheading:3129913-gamma-Aminobutyric Acid
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pubmed:year |
1988
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pubmed:articleTitle |
Pharmacological effects on hemoglobin-oxygen affinity in vitro and in patients with chronic obstructive pulmonary disease.
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pubmed:affiliation |
First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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