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    Heparinase: In Vivo Activity and Immunogenicity in Rabbits

    Author
    Klein, M.D.; Drongowski, R.A.; Linhardt, Robert J.; Cooney, C.L.; Langer, R.S.
    ORCID
    https://orcid.org/0000-0003-2219-5833
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    Date Issued
    1983
    Subject
    Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
    Degree
    Terms of Use
    In Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). https://rightsstatements.org/page/InC/1.0/;
    Full Citation
    Heparinase: In Vivo Activity and Immunogenicity in Rabbits, M.D. Klein, R.A. Drongowski, R.J. Linhardt, C.L. Cooney, R.S. Langer, Journal of Clinical and Laboratory Medicine, 102, 828-837 (1983).
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    URI
    https://doi.org/10.5555/uri:pii:0022214383900331; https://hdl.handle.net/20.500.13015/6034
    Abstract
    Anticoagulation with heparin is required during extracorporeal circulation for hemodialysis and cardiopulmonary bypass as well as during vascular surgery. Reversal of anticoagulation with protamine may be associated with hypotension and rebound anticoagulation and requires stoichiometric doses. Heparinase from Flavobacterium heparinum catalytically degrades heparin and reverses its anticoagulant effect. Heparin was administered to New Zealand White rabbits and plasma levels were assayed with the APTT anticoagulant assay and the azure A chemical assay. Heparinase actively degraded heparin both in vitro in rabbit plasma and in vivo in rabbit blood as determined by both the anticoagulant and chemical assays when compared to control heparin disappearance curves. Antibodies to heparinase were demonstrated by the ELISA technique in rabbits receiving i.v. heparinase. These antibodies, however, did not effect the activity of the enzyme in vitro or in vivo. No toxic effects of heparinase were noted in observations of the animals or in blood and histologic studies. Heparinase, either free or immobilized, may be a useful heparin-reversing agent without the drawbacks of protamine.;
    Description
    Journal of Clinical and Laboratory Medicine, 102, 828-837; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
    Department
    The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
    Relationships
    The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; https://harc.rpi.edu/;
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