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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1992-10-15
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pubmed:abstractText |
L-asparaginase is an enzyme that inhibits protein synthesis by the depletion of sources of L-asparagine, which is necessary for transformed lymphoid cells to proliferate. L-asparaginase is used in the treatment of childhood acute lymphoblastic leukemia. A problem with L-asparaginase therapy is the immunogenicity of the enzyme and the development of anaphylactic reactions. Canine lymphoma is a predominantly B-cell tumor with widespread disease; without treatment, dogs with lymphoma usually survive 1-2 months. Canine lymphoma will respond to L-asparaginase therapy. A randomized double-blind study evaluated a polyethylene glycol (PEG) conjugate L-asparaginase combined with chemotherapy (vincristine, cyclophosphamide, doxorubicin, and prednisone). Thirty-five dogs were randomized to the PEG L-asparaginase group, and 34 dogs were randomized to the native L-asparaginase group. Thirty dogs (85.7%) achieved a complete remission (CR) with a median time to relapse of 217 days, and 32 (94.1%) dogs in the native L-asparaginase group achieved a CR with a median time to relapse of 214 days (P greater than 0.05). The asparaginase was well tolerated in both groups. Two dogs in the native L-asparaginase group had severe allergic reactions, and one dog in the PEG asparaginase group had a generalized urticarial reaction after repeated injections. This study indicates that PEG L-asparaginase has equal therapeutic efficacy to native L-asparaginase.
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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/Asparaginase,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclophosphamide,
http://linkedlifedata.com/resource/pubmed/chemical/Doxorubicin,
http://linkedlifedata.com/resource/pubmed/chemical/Enzymes, Immobilized,
http://linkedlifedata.com/resource/pubmed/chemical/Polyethylene Glycols,
http://linkedlifedata.com/resource/pubmed/chemical/Prednisone,
http://linkedlifedata.com/resource/pubmed/chemical/Vincristine,
http://linkedlifedata.com/resource/pubmed/chemical/pegaspargase
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pubmed:status |
MEDLINE
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pubmed:issn |
0891-6640
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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 |
230-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1522554-Animals,
pubmed-meshheading:1522554-Antineoplastic Combined Chemotherapy Protocols,
pubmed-meshheading:1522554-Asparaginase,
pubmed-meshheading:1522554-Cyclophosphamide,
pubmed-meshheading:1522554-Dog Diseases,
pubmed-meshheading:1522554-Dogs,
pubmed-meshheading:1522554-Double-Blind Method,
pubmed-meshheading:1522554-Doxorubicin,
pubmed-meshheading:1522554-Drug Tolerance,
pubmed-meshheading:1522554-Enzymes, Immobilized,
pubmed-meshheading:1522554-Female,
pubmed-meshheading:1522554-Lymphoma,
pubmed-meshheading:1522554-Male,
pubmed-meshheading:1522554-Polyethylene Glycols,
pubmed-meshheading:1522554-Prednisone,
pubmed-meshheading:1522554-Treatment Outcome,
pubmed-meshheading:1522554-Vincristine
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pubmed:articleTitle |
Evaluation of L-asparaginase: polyethylene glycol conjugate versus native L-asparaginase combined with chemotherapy. A randomized double-blind study in canine lymphoma.
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pubmed:affiliation |
Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison 53706.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Comparative Study,
Randomized Controlled Trial,
Research Support, Non-U.S. Gov't
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