نتایج جستجو برای: platelet disorder
تعداد نتایج: 699157 فیلتر نتایج به سال:
Platelet function was evaluated in 12 patients with the attention deficit disorder and lifelong history of easy bruising. Aggregation and 14C-serotonin secretion studies in platelet-rich plasma in response to adenosine diphosphate (ADP), epinephrine, and arachidonic acid did not reveal striking abnormalities. Secretion of adenosine triphosphate (ATP), ADP, beta-hexosaminidase, and beta-glucuron...
This prospective observational cohort study aimed to explore the clinical features of incident immune thrombocytopenia in adults and predictors of outcome, while determining if a family history of autoimmune disorder is a risk factor for immune thrombocytopenia. All adults, 18 years of age or older, recently diagnosed with immune thrombocytopenia were consecutively recruited across 21 hospital ...
Preparation conditions and platelet storage for transfusion may cause platelet activation, which contributes to decreased ability of stored platelet to function and survive in vivo after transfusion compared with that seen with freshly prepared platelets. Using flowcytometry, we investigated platelet membrane expression of CD62P, CD63 in platelet stored for up to 3 days under standard blood ba...
Type I Glanzmann's thrombasthenia is a rare congenital platelet function disorder, characterized by undetectable platelet membrane glycoprotein IIb-IIIa (GPIIb-IIIa). Severe bleeding is controlled by transfusion of normal platelets, leading in some cases to the occurrence of anti-GPIIb-IIIa isoantibodies, which induces a loss of transfused platelet efficacy. We used immunoadsorption on protein ...
background: idiopathic thrombocytopenic purpura is an autoimmune blood disorder in which platelet destruction is mediated by anti-platelet antibodies. there are two forms of itp: acute and chronic. the aim of the present study was to evaluate the clinical variables in adult patients with acute itp in west of iran. patients and methods: medical records of adult patients with diagnosis of acute i...
Von Willebrand disease (VWD) may be caused by an impaired von Willebrand factor (VWF) synthesis, its increased clearance or abnormal function, or combinations of these factors. It may be difficult to recognize the different contributions of these anomalies. Here we demonstrate that VWD diagnostics gains from measuring platelet VWF, which can reveal a defective VWF synthesis. Measuring platelet ...
An HIV antibody (Ab) against platelet integrin GPIIIa49-66 induces complement-independent platelet particle formation by the elaboration of reactive oxygen species (ROS) downstream of the activation of the platelet NADPH oxidase by the 12-lipoxygenase (12-LO) product 12(S)-HETE. To determine whether other inducers of platelet particle formation also function via the induction of ROS, we examine...
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