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The effect of therapy on platelet-associated autoantibody in chronic immune thrombocytopenic purpura

Academic Article
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Overview

authors

  • Fujisawa, K.
  • Tani, P.
  • Piro, L.
  • Mc Millan, Robert

publication date

  • June 1993

journal

  • Blood  Journal

abstract

  • Chronic immune thrombocytopenic purpura (ITP) is an autoimmune disorder due to autoantibody-induced destruction of platelets. Several forms of therapy have been used, including corticosteroids, splenectomy, danazol, and a variety of immunosuppressants. We studied the mechanism of action of some of these treatments by evaluating patients' platelet-associated autoantibodies (PAAb) and platelet count before and serially following therapy. Treatment with corticosteroids, splenectomy, cyclophosphamide, and combination chemotherapy resulted in a progressive decrease in PAAb associated with an improvement in the platelet count, and appeared to act by primarily affecting autoantibody production. Conversely, PAAb levels either remained stable or increased during vincristine or danazol therapy despite improvement in the platelet count, suggesting that the major effect of these agents was decreased platelet removal by the reticuloendothelial (RE) system.

subject areas

  • Adrenal Cortex Hormones
  • Adult
  • Aged
  • Aged, 80 and over
  • Autoantibodies
  • Blood Platelets
  • Cyclophosphamide
  • Danazol
  • Female
  • Humans
  • Male
  • Middle Aged
  • Platelet Count
  • Purpura, Thrombocytopenic, Idiopathic
  • Splenectomy
  • Vincristine
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Identity

International Standard Serial Number (ISSN)

  • 0006-4971

PubMed ID

  • 8499625
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Additional Document Info

start page

  • 2872

end page

  • 2877

volume

  • 81

issue

  • 11

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