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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1991-12-19
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pubmed:abstractText |
We analyzed the immunological characteristics of patients with idiopathic thrombocytopenic purpura (ITP) and antiglycoprotein (GP) IIb/IIIa or GPIb autoantibodies. Among 101 ITP patients, 32 had anti-GPIIb/IIIa and 19 had anti-GPIb autoantibodies. Thrombocytopenia was more severe in patients with anti-GPIb autoantibodies than in patients without these autoantibodies, whereas ITP patients with anti-GPIIb/IIIa autoantibodies did not develop severe thrombocytopenia. Patients with anti-GPIb autoantibodies showed significant increases of platelet-associated IgM and platelet-associated C3 in comparison with patients without the autoantibodies, despite there being no significant difference in the platelet-associated IgG levels. The lymphocyte subsets and the blastogenic response in patients with anti-GPIb autoantibodies were also significantly different from those in the patients without these autoantibodies. Furthermore, severe purpura and a poor response to prednisolone were far more common in the patients with anti-GPIb autoantibodies. Activation of the complement system and/or functional abnormalities of lymphocytes thus appear to be involved in the development of thrombocytopenia in ITP patients with anti-GPIb autoantibodies, and such antibodies may be associated with a particularly severe form of ITP.
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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/Autoantibodies,
http://linkedlifedata.com/resource/pubmed/chemical/Complement C3,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin G,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin M,
http://linkedlifedata.com/resource/pubmed/chemical/Platelet Membrane Glycoproteins
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pubmed:status |
MEDLINE
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pubmed:issn |
0001-5792
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
86
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
25-30
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1950358-Autoantibodies,
pubmed-meshheading:1950358-Blood Platelets,
pubmed-meshheading:1950358-Complement C3,
pubmed-meshheading:1950358-Humans,
pubmed-meshheading:1950358-Immunoglobulin G,
pubmed-meshheading:1950358-Immunoglobulin M,
pubmed-meshheading:1950358-Platelet Count,
pubmed-meshheading:1950358-Platelet Membrane Glycoproteins,
pubmed-meshheading:1950358-Purpura, Thrombocytopenic, Idiopathic
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pubmed:year |
1991
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pubmed:articleTitle |
Analysis of idiopathic thrombocytopenic purpura patients with antiglycoprotein IIb/IIIa or Ib autoantibodies.
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pubmed:affiliation |
First Department of Internal Medicine, Kansai Medical University, Osaka, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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