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Original communication| Volume 79, ISSUE 5, P584-589, May 1976

Scanning electron microscopic observations of the common carotid artery of the rat. III. Heparin effect on platelets

  • F.Karl Gregorius
    Correspondence
    Reprint requests: F. Karl Cregorious, M.D., c/o Mrs. Seba Kolb, Editor, Department of Surgery, Division of Neurosurgery, UCLA School of Medicine, Los Angeles, Calif. 90024.
    Affiliations
    From the Department of Surgery, Division of Neurosurgery, UCLA School of Medicine, Los Angeles, Calif., USA
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  • Robert W. Rand
    Affiliations
    From the Department of Surgery, Division of Neurosurgery, UCLA School of Medicine, Los Angeles, Calif., USA
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      Abstract

      After administration of high systemic doses of heparin verified by assay, common carotid arteries in the rat were divided and sutured. Scanning electron microscope observations of endothelial surfaces showed a decrease in platelet adhesion, as well as a reduction in the adherence of other circulatory blood elements when compared to controls. This is the first report indicating the in vivo effect of high dose systemic heparin on platelets.
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