Cytoskeletal perturbation leads to platelet dysfunction and thrombocytopenia in variant forms of Glanzmann thrombasthenia
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چکیده
منابع مشابه
Patients With Glanzmann Thrombasthenia Lacking Platelet Glycoprotein
Background—Platelets have been suggested to play a role in the early development of atherosclerosis. As one test of this hypothesis, we assessed whether patients with Glanzmann thrombasthenia who lack platelet glycoprotein IIb 3 (GPIIb/IIIa) complexes or both IIb 3 and the more ubiquitous v 3 cell membrane complexes are protected from development of atherosclerosis. Methods and Results—Seven pa...
متن کاملGlanzmann thrombasthenia
Glanzmann thrombasthenia (GT) is a rare autosomal recessive bleeding syndrome affecting the megakaryocyte lineage and characterized by lack of platelet aggregation. The molecular basis is linked to quantitative and/or qualitative abnormalities of alphaIIb beta3 integrin. This receptor mediates the binding of adhesive proteins that attach aggregating platelets and ensure thrombus formation at si...
متن کاملAn Amino Acid Insertion and Variant Glanzmann Thrombasthenia
The ligand binding site(s) of the a subunit of integrin a IIb b 3 (GPIIb-IIIa), a prototypic non–I domain integrin, remains elusive. In this study, we have characterized a Japanese variant of Glanzmann thrombasthenia, KO, whose platelets express normal amounts of a IIb b 3 . KO platelets failed to bind the activation-independent ligand-mimetic mAb OPG2 and did not bind fibrinogen or the activat...
متن کاملGlanzmann thrombasthenia in a neonate.
Glanzmann thrombasthenia is a qualitative platelet function disorder manifested by skin bleeds, epistaxis, gingival bleeding, gastrointestinal hemorrhage, hematuria, hemarthrosis, intracranial hemorrhage and visceral hematomas. We report a six day old newborn presenting with hematuria following suprapubic aspiration, who was diagnosed as Glanzmann thrombasthenia. We believe it to be the younges...
متن کاملGlanzmann Thrombasthenia: A Clinicopathological Profile.
OBJECTIVE To describe the clinical presentation of patients with Glanzmann's thrombasthenia (GT) and evaluate their diagnostic, clinical, and laboratory parameters including platelet aggregometry. STUDY DESIGN Descriptive study. PLACE AND DURATION OF STUDY Department of Hematology and Blood Transfusion, The Children Hospital and Institute of Child Health, Lahore, from January 2006 to Decemb...
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ژورنال
عنوان ژورنال: Haematologica
سال: 2015
ISSN: 0390-6078,1592-8721
DOI: 10.3324/haematol.2015.130849