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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1978-3-21
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pubmed:abstractText |
1. Adaptive mechanisms of oxygen transport by blood have been studied in severely anaemic young patients on maintenance haemodialysis, in conditions of hyperphosphataemia (Pi greater than or equal to 2.2 mmol/l) or normophosphataemia. 2. In hyperphosphataemia whole-blood affinity for oxygen was slightly decreased, as measured by an increase in P50 (the partial pressure of oxygen necessary to half saturate haemoglobin). 2,3-Diphosphoglycerate was increased by 10% (P less than 0.10) whereas Pi, total erythrocyte phosphate and ATP were increased by 100%, 47% and 36% respectively, compared with control values. 3. After correction of hyperphosphataemia a small but significant decrease in P50 and 2,3-diphosphoglycerate, to normal values, was observed whereas the other variables, although significantly lowered, remained above control values. 4. In these severely anaemic and hyperphosphataemic patients P50 and 2,3-diphosphoglycerate are only slightly increased. ATP synthesis appears to be favoured over that of 2,3-diphosphoglycerate. This is possibly due to alterations in the erythrocyte membrane elicited by bi-weekly extracorporeal circulation. Adequate oxygen transport can be achieved only through a drastic increase in blood flow. Correction of hyperphosphataemia adds further to the abnormality. It is concluded that this condition could induce a long-term myocardial fatigue, which might be prevented with occasional small blood transfusions.
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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/Adenosine Triphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Aluminum Hydroxide,
http://linkedlifedata.com/resource/pubmed/chemical/Diphosphoglyceric Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphates
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0301-0538
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
54
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
85-91
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:620497-Adaptation, Physiological,
pubmed-meshheading:620497-Adenosine Triphosphate,
pubmed-meshheading:620497-Adolescent,
pubmed-meshheading:620497-Adult,
pubmed-meshheading:620497-Aluminum Hydroxide,
pubmed-meshheading:620497-Anemia,
pubmed-meshheading:620497-Child,
pubmed-meshheading:620497-Diphosphoglyceric Acids,
pubmed-meshheading:620497-Erythrocytes,
pubmed-meshheading:620497-Female,
pubmed-meshheading:620497-Humans,
pubmed-meshheading:620497-Kidney Failure, Chronic,
pubmed-meshheading:620497-Male,
pubmed-meshheading:620497-Oxygen,
pubmed-meshheading:620497-Phosphates,
pubmed-meshheading:620497-Renal Dialysis
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pubmed:year |
1978
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pubmed:articleTitle |
Oxygen transport in children on maintenance haemodialysis.
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pubmed:publicationType |
Journal Article
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