rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
7
|
pubmed:dateCreated |
1998-10-15
|
pubmed:abstractText |
Polyhemoglobin-superoxide dismutase-catalase is designed to function as an oxygen carrier with antioxidant properties. This is based on cross-linking hemoglobin with superoxide dismutase and catalase (PolyHb-SOD-CAT). This study describes the structural and antioxidant properties of this solution. Our studies show that superoxide dismutase and catalase retain their enzymatic activity following glutaraldehyde polymerization with 8:1 and 16:1 glutaraldehyde:hemoglobin ratio. We have analyzed the optimal SOD/CAT ratios to prevent oxidation of hemoglobin in the presence of oxygen free radicals. The circulation half-life of crosslinked hemoglobin, SOD, and catalase in Sprague-Dawley rats correlates with the degree of polymerization as determined by high-performance molecular weight gel filtration. PolyHb-SOD-CAT decreases the formation of oxygen radicals compared with PolyHb in a rat intestinal ischemia-reperfusion model.
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pubmed:commentsCorrections |
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
1087-0156
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
16
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
667-71
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:9661202-Animals,
pubmed-meshheading:9661202-Blood Substitutes,
pubmed-meshheading:9661202-Catalase,
pubmed-meshheading:9661202-Chromatography, Gel,
pubmed-meshheading:9661202-Half-Life,
pubmed-meshheading:9661202-Hemoglobins,
pubmed-meshheading:9661202-Intestines,
pubmed-meshheading:9661202-Male,
pubmed-meshheading:9661202-Molecular Weight,
pubmed-meshheading:9661202-Oxyhemoglobins,
pubmed-meshheading:9661202-Protein Engineering,
pubmed-meshheading:9661202-Rats,
pubmed-meshheading:9661202-Rats, Sprague-Dawley,
pubmed-meshheading:9661202-Reperfusion Injury,
pubmed-meshheading:9661202-Superoxide Dismutase,
pubmed-meshheading:9661202-Superoxides
|
pubmed:year |
1998
|
pubmed:articleTitle |
Polyhemoglobin-superoxide dismutase-catalase as a blood substitute with antioxidant properties.
|
pubmed:affiliation |
Artificial Cells and Organs Research Centre, Faculty of Medicine, McGill University, Montreal, Canada.
|
pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|