نتایج جستجو برای: chronic itp

تعداد نتایج: 499127  

Journal: :American Journal of Hematology 1995

2016
Shosaku Nomura

Immune thrombocytopenia (ITP) is an acquired hemorrhagic condition characterized by the accelerated clearance of platelets caused by antiplatelet autoantibodies. A platelet count in peripheral blood <100 × 10(9)/L is the most important criterion for the diagnosis of ITP. However, the platelet count is not the sole diagnostic criterion, and the diagnosis of ITP is dependent on additional finding...

Journal: :Blood 1991
K Fujisawa T E O'Toole P Tani J C Loftus E F Plow M H Ginsberg R McMillan

Chronic immune thrombocytopenic purpura (ITP) is an autoimmune disorder due to autoantibodies against platelets that result in their destruction. In some patients, these autoantibodies bind to platelet glycoprotein (GP) IIIa. With the aim of better defining the antigenic epitopes, plasma from 13 selected patients with chronic ITP known to have anti-GPIIb/IIIa autoantibodies was tested for react...

2015
Bo Ra Son Ji Yoon Kim

PURPOSE The purpose of this study was to determine the frequency of CD4(+)CD25(+)FoxP3(+) regulatory T cells (Treg) in the peripheral blood of patients with childhood chronic immune thrombocytopenic purpura (ITP) exhibiting thrombocytopenia and spontaneous remission. The findings of this study indicate the possibility of predicting spontaneous recovery and pathogenesis of childhood chronic ITP....

Journal: :British journal of haematology 2015
Hui Zhong James Bussel Karina Yazdanbakhsh

Tumour necrosis factor-α (TNF) is an inflammatory cytokine that is elevated in a number of autoimmune diseases including immune thrombocytopenia (ITP), a bleeding disorder characterized by low platelet counts. In vitro TNF blockade increases expansion of the regulatory T cell (Treg) IKZF2 (also termed Helios) subset in T cell-monocyte cocultures from healthy donors, but its role on proliferativ...

Journal: :Blood 2001
R Stasi A Pagano E Stipa S Amadori

The role of rituximab, a chimeric monoclonal antibody directed against the CD20 antigen, in the treatment of patients with chronic idiopathic thrombocytopenic purpura (ITP) has not been determined. The effectiveness and side effects of this therapeutic modality were investigated in a cohort of 25 individuals with chronic ITP. All patients had ITP that had been resistant to between 2 and 5 diffe...

2009
Anna Podolanczuk Alan H. Lazarus Andrew R. Crow Elliot Grossbard James B. Bussel

To determine whether inhibition of Syk would be useful in Fc R-dependent cytopenias such as immune thrombocytopenic purpura (ITP) or autoimmune hemolytic anemia, mouse models were used to evaluate efficacy of R406, an inhibitor of Syk function, in treating cytopenia. Both disease models responded favorably to treatment, with amelioration of ITP being more dramatic. Thus, phase 2 clinical trial ...

2012
Xiaojuan Li Hui Zhong Weili Bao Nayla Boulad Jessie Evangelista Muhammad Anis Haider James Bussel Karina Yazdanbakhsh

B lymphocytes producing antiplatelet autoantibodies play a major role in autoimmune thrombocytopenia (ITP). However, certain B cells, including the human CD19 CD24hiCD38hi subpopulation, possess regulatory functions mediated partly by IL-10. In a cohort of chronic ITP patients with low platelet counts who consisted of patients off treatment, we found a lower frequency of CD19 CD24hiCD38hi in th...

Journal: :Blood 2011
Mehdi Khellaf Marc Michel Philippe Quittet Jean-François Viallard Magda Alexis Françoise Roudot-Thoraval Stéphane Cheze Jean-Marc Durand François Lefrère Lionel Galicier Olivier Lambotte Gérard Panelatti Borhane Slama Gandhi Damaj Gérard Sebahoun Emmanuel Gyan Xavier Delbrel Nathalie Dhedin Bruno Royer Nicolas Schleinitz Jean-François Rossi Matthieu Mahévas Laetitia Languille Philippe Bierling Bertrand Godeau

Romiplostim, a thrombopoietic agent with demonstrated efficacy against immune thrombocytopenia (ITP) in prospective controlled studies, was recently licensed for adults with chronic ITP. Only France has allowed romiplostim compassionate use since January 2008. ITP patients could receive romiplostim when they failed to respond to successive corticosteroids, intravenous immunoglobulins, rituximab...

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