2015
Increasing procoagulant activity of circulating microparticles in patients with Philadelphia-negative myeloproliferative neoplasms: a single-centre experience
KISSOVÁ, Jarmila; Petra OVESNÁ; Alena BULIKOVÁ; Jiřina ZAVŘELOVÁ; Miroslav PENKA et al.Základní údaje
Originální název
Increasing procoagulant activity of circulating microparticles in patients with Philadelphia-negative myeloproliferative neoplasms: a single-centre experience
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Vydání
BLOOD COAGULATION & FIBRINOLYSIS, Philadelphia, Lippincott Williams & Wilkins, 2015, 0957-5235
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.242
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/15:00083018
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
microparticle; myeloproliferative neoplasms; procoagulant activity; thrombosis
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 6. 2015 09:36, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
Microparticles are small membrane fragments with dimension between 0.1 and 1 mu m, which are released during cell activation or apoptosis, exposing the phospholipid phosphatidylserine and membrane antigens typical for cellular origin. Philadelphia-negative myeloproliferative neoplasms (MPNs) are characterized by an increased risk of thrombosis. Data from literature suggest an association between thrombosis and the procoagulant activity of microparticles. Association between the procoagulant activity of microparticles and the incidence of thrombosis was assesed in a group of 126 patients with Philadelphia-negative MPNs. Measurement of microparticles procoagulant activity was performed using a functional assay, namely the Zymuphen MP-activity (Hyphen Biomed, Neuville-sur-oise, France). A total of 539 samples were analysed within this group of patients, regardless of patients' state of health. A significantly higher circulating microparticles procoagulant activity was found in MPN patients as compared with the control group (P<0.001). A pathological level of procoagulant activity was observed more frequently in patients with polycythaemia vera (88%, P=0.002) than groups of patients with essential thrombocythaemia (73.2%) and primary myelofibrosis (68.3%); the same result was confirmed in patients with a history of venous thrombosis in comparison with patients without thrombosis (84.7 vs. 73.2%, P=0.029). Patients without cytoreductive treatment had a higher activity of microparticles (P=0.010). Furthermore, presence of JAK2 V617F mutation was associated with an increased procoagulant activity (P=0.007), as well as the higher JAK2 V617F allele burden (P=0.001). Further prospective clinical studies will be necessary to evaluate the clinical relevance of microparticles in the prediction hypercoagulable state in these patients.
Návaznosti
| MUNI/A/0723/2012, interní kód MU |
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