Abstract:
:Essential thrombocythemia (ET) is a clonal myeloproliferative disorder of unknown origin primarily involving the megakaryocyte/platelet lineage. In an attempt to evaluate the role of the receptor c-mpl and its ligand thrombopoietin (TPO) in ET, various studies have been undertaken, the results of which are discussed herein. Normal or even elevated TPO levels in ET despite an increased megakaryocyte/platelet mass suggest abnormal feedback mechanisms in the regulation of TPO production and consumption. Deregulated levels of TPO in the circulation of patients with ET may be the result of an abnormal TPO consumption by platelets and megakaryocytes. It has been shown that proto-oncogene c-mpl is involved in spontaneous megakaryopoiesis in myeloproliferative disorders. Evidence for a decisive role of deregulated TPO in ET also comes from observations in mice overexpressing a TPO transgene where increased TPO production has resulted in a fatal myeloproliferative syndrome. Future research will study quantitative and qualitative deficiencies of c-mpl, the kinetics of the interaction of c-mpl with its ligand (TPO), and the role of autocrine or paracrine production of c-mpl ligand in increasing megakaryopoiesis so as to further elucidate its pathobiologic significance in ET.
journal_name
Semin Thromb Hemostjournal_title
Seminars in thrombosis and hemostasisauthors
Griesshammer M,Bangerter M,Schrezenmeier Hdoi
10.1055/s-2007-996118subject
Has Abstractpub_date
1997-01-01 00:00:00pages
419-23issue
5eissn
0094-6176issn
1098-9064journal_volume
23pub_type
杂志文章,评审abstract::The pathogenesis of atherosclerosis, the leading cause of morbidity and mortality in industrial countries, is multifactorial. Atherogenesis, the development of atherosclerotic lesions, is initiated by a mechanical or functional injury of the endothelium. The function of the endothelium is influenced by multiple factor...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-969025
更新日期:2007-03-01 00:00:00
abstract::With the continued accumulation of clinical and animal studies, it is becoming abundantly clear that the protein C anticoagulant pathway plays a critical role in the regulation of coagulation. Investigations also indicate that this pathway is intimately involved in the interaction of the coagulation and inflammatory s...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1002779
更新日期:1988-04-01 00:00:00
abstract::Homocysteine has been identified as an independent risk factor for atherosclerotic and thrombotic disease. Both arterial (cerebrovascular, carotid, coronary, and peripheral arterial) and veno-occlusive disease, jointly termed vascular occlusive disease (VOD) in this review, have been associated with hyperhomocysteinem...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-994932
更新日期:1999-01-01 00:00:00
abstract::The increase of circulating tissue factor pathway inhibitor (TFPI) in plasma by heparins is thought to contribute to their overall antithrombotic activity. In a clinical study in healthy volunteers, we recently found that the specific potency of a heparin to mobilize TFPI from the vessel wall increases with its molecu...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2001-17952
更新日期:2001-10-01 00:00:00
abstract::Prophylactic treatment from ages 2 to 18 years could prevent the development of hemophilic arthropathy if the concentration of the patient's deficient factor is kept from falling below 1% of normal. Early treatment is of paramount importance because the immature skeleton is very sensitive to the complications of hemop...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2003-37942
更新日期:2003-02-01 00:00:00
abstract::The beta2-glycoprotein I (beta2-GPI) is known for its procoagulant as well as anticoagulant properties. The influence of beta2-GPI on tissue factor (TF) activity was investigated by chromogenic assays for both factor Xa generation and factor VIIa activity. When 1.36 mg/mL beta2-GPI was added to phospholipids prior to ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-995844
更新日期:1998-01-01 00:00:00
abstract::Biological rhythms are a universal phenomenon in living organisms and serve to help organisms adapt within a circadian cycle to the 24-hour-oscillating environment. The rhythmic modulation of selective pathways thus enables organisms to optimize their ability to store and generate chemical energy, to minimize environm...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0029-1214145
更新日期:2009-02-01 00:00:00
abstract::Thrombotic events are very frequent and represent the main cause of morbidity and mortality in patients with Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs), mainly polycythemia vera and essential thrombocythemia. Pathogenesis of blood clotting activation in these diseases is multifactorial, and i...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0034-1370794
更新日期:2014-04-01 00:00:00
abstract::Polycystic ovarian syndrome (PCOS) affects 12 to 19% of women and has reproductive and metabolic features (endothelial dysfunction, increased diabetes, and cardiovascular risk factors). It also appears to have altered coagulation and fibrinolysis with a prothrombotic state with epidemiological evidence of increased ve...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 临床试验,杂志文章
doi:10.1055/s-0035-1564837
更新日期:2016-02-01 00:00:00
abstract::Although the current therapeutic armamentarium of venous thrombosis encompasses the use of vitamin K antagonists, heparins, and direct oral anticoagulants, these drugs have several important drawbacks. Antisense oligonucleotides are relatively short single-stranded nucleic acid sequences, which hybridize with a target...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0035-1546466
更新日期:2015-03-01 00:00:00
abstract::Patients with end-stage renal disease suffer from complex hemostatic disorders. Uremic patients show a bleeding diathesis that is mainly due to abnormalities of primary hemostasis; in particular, platelet dysfunction and impaired platelet-vessel wall interaction. However, despite decreased platelet function, these pat...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2004-835678
更新日期:2004-10-01 00:00:00
abstract::Life expectancy for persons with hemophilia (PWH) has considerably increased in the last decades as a direct result of the availability of modern therapies to control the clotting defect. Because their life expectancy now matches that of the general population, PWH are experiencing age-related comorbidities, such as, ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0033-1354424
更新日期:2013-10-01 00:00:00
abstract::Site-directed thrombin inhibitors are being currently assessed clinically for their antithrombotic efficacy. Although these agents are claimed to be specific and direct thrombin inhibitors, their mechanism of inhibition varies. The objective of these studies was to compare four such agents in in vitro systems and to a...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-1000393
更新日期:1995-01-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to evaluate the genetic variability of selected single nucleotide polymorphisms (SNPs) within GAS6 and PEAR1 genes and explore the association between selected SNPs and risk for fetal loss in women with sticky platelet syndrome (SPS). MATERIALS AND METHODS:We examined 23 female p...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0034-1395351
更新日期:2015-04-01 00:00:00
abstract::Heparanase is an endo-β-glucuronidase that enzymatically cleaves heparan sulfates (HS) and heparan sulfate proteoglycan (HSPG) structures. Heparanase expression levels by tumors were correlated with cell invasion, angiogenic activity, and poor prognosis. Heparanase can also possess pro-tumorigenic effects independent ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0035-1544229
更新日期:2015-03-01 00:00:00
abstract::This study aimed to determine the impact of major hemorrhage (MH) protocol (MHP) activation on blood administration and patient outcome at a UK major cardiothoracic center. MH was defined in patients (> 16 years) as those who received > 5 units of red blood cells (RBCs) in < 4 hours, or > 10 units in 24 hours. Data we...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0040-1718869
更新日期:2021-02-01 00:00:00
abstract::Numerous studies, performed in recent years, have provided the convincing demonstration that the incidence of newly diagnosed malignancy is increased among patients with unexplained venous thromboembolism during the first 6 to 12 months after the thromboembolic event. Among malignancies presenting with venous thromboe...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-994914
更新日期:1999-01-01 00:00:00
abstract::While case fatality rates in ischemic stroke tend to decline, the total number of strokes is expected to increase further in the future because of more people reaching a greater age. Acute ischemic stroke, usually caused by chronic arterial hypertension, in most cases is induced either by a sudden loss of perfusion pr...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-998991
更新日期:1996-01-01 00:00:00
abstract::Pregnancy is associated with a significant procoagulant shift in the hemostatic system balance as well as other metabolic changes. Pregnancy can thereby provoke manifestation of otherwise dormant disorders of hemostasis (e.g., thrombophilia), or even cause new, pregnancy-specific disorders (e.g., HELLP syndrome). Appl...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0036-1592303
更新日期:2016-10-01 00:00:00
abstract::The molecular basis for the hereditary type I protein S (PS) deficiency was investigated. DNA sequence analysis of 12 patients with PS deficiency in Japan identified four point mutations and three of them were novel. Nonsense mutations found in two unrelated patients resulted in termination of the PS polypeptide chain...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2001-14075
更新日期:2001-01-01 00:00:00
abstract::Platelets have classically been considered crucial effector cells in hemostasis, but now are increasingly recognized as players during inflammatory responses in innate and adaptive immunity. Platelets can recognize and kill invading pathogens, and, upon stimulation, also release a wide array of mediators that modify i...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1607432
更新日期:2018-03-01 00:00:00
abstract::Macrophage migration inhibitory factor (MIF) is induced by various stimuli such as wounds and infection and regulates inflammatory and immunological responses. To date, we have found increased expression of MIF during the wound healing process in rat skin. Immunohistochemical analysis demonstrated enhanced expression ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-994967
更新日期:1999-01-01 00:00:00
abstract::Platelets possess three P2 receptors: two (P2Y (1) and P2Y (12)) are receptors for adenosine diphosphate (ADP), and one (P2X1) is a receptor for adenosine triphosphate (ATP). The P2Y (1) receptor, which is coupled to Gq and phospholipase C-beta, is responsible for mobilization of ionized calcium from internal stores a...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2005-869522
更新日期:2005-04-01 00:00:00
abstract::Thrombocytosis is frequently (10 to 57%) observed in cancer patients. Although the mechanisms underlying thrombocytosis are not yet fully elucidated, tumor-derived factors with thrombopoietin-like activity, growth factors, platelet-derived microparticles, and factors released from bone marrow endothelial cells as well...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-991540
更新日期:2007-10-01 00:00:00
abstract::This epilogue represents a final summary of the issues discussed and highlighted at the International Summit on Differentiation of Low Molecular Weight Heparins (LMWHs). International scientists and physicians presented and discussed the physicochemical differences between LMWHs, and concluded that different productio...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::Heparin, a sulfated polysaccharide belonging to the family of glycosaminoglycans, was discovered in the beginning of the 20th century and was initially identified as a procoagulant isolated from liver tissue. After the first application in patients approximately 30 years later, further purification identified the majo...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 历史文章,杂志文章,评审
doi:10.1055/s-0034-1395152
更新日期:2014-11-01 00:00:00
abstract::Systolic heart failure is a common syndrome whose incidence is expected to increase. Several treatment modalities, such as beta-blockers and angiotensin-converting enzyme inhibitors, improve survival. Whether antithrombotic treatment is effective remains to be elucidated, although observations suggest a prothrombotic ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0029-1234145
更新日期:2009-07-01 00:00:00
abstract::In the Netherlands, specialized care for patients with a bleeding disorder, including hemophilia, von Willebrand disease (VWD), and allied disorders, is concentrated in 13 Hemophilia Treatment Centers. The Dutch Hemophilia Treaters Society, the Dutch Hemophilia Nurses' Society, and the Netherlands Hemophilia Patients ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0031-1281032
更新日期:2011-07-01 00:00:00
abstract::Numerous studies have shown that early radiation injury is characterized by vascular damage and that the initial site of damage appears to be the EC lining of the vessel wall. Chronic irreversible tissue reactions to radiation include thrombotic occlusion of capillaries, enhanced atherosclerosis in larger vessels, inf...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-1002708
更新日期:1989-04-01 00:00:00
abstract::Protamine sulfate has been used for many years to reverse the effects of unfractionated heparin, but it can cause hemodynamic changes and other serious side effects. Platelet factor 4 (PF4) is a naturally occurring protein synthesized in megakaryocytes and eventually stored in the alpha granules of platelets for later...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 临床试验,杂志文章,随机对照试验,评审
doi:10.1055/s-2004-831050
更新日期:2004-06-01 00:00:00