Abstract:
:APC resistance is often associated with the occurrence of a single point mutation in factor V (factor VLeiden) at a predominant cleavage site for the natural anticoagulant, activated protein C (APC). In this article we will discuss the effects of this mutation (Arg506-->Gln) on the down-regulation of factor Va cofactor activity and on thrombin formation by APC in model systems and in plasma. Our studies on the effects of APC on thrombin formation in plasma resulted in the development of a new method for the screening of APC resistance that is based on measurement of the effect of APC on the endogenous thrombin potential (the time integral of thrombin generated in clotting plasma). It appeared that sensitivities for APC determined via this method were considerably affected by the use of oral contraceptives (OC) and that women who use OC become acquired APC resistant. The fact that acquired APC resistance in women who use third-generation OC was more pronounced than in users of second-generation OC may explain the further increased risk for venous thrombosis associated with the use of third-generation OC.
journal_name
Semin Thromb Hemostjournal_title
Seminars in thrombosis and hemostasisauthors
Rosing J,Hemker HC,Tans Gdoi
10.1055/s-2007-996021subject
Has Abstractpub_date
1998-01-01 00:00:00pages
329-35issue
4eissn
0094-6176issn
1098-9064journal_volume
24pub_type
杂志文章,评审abstract::Asymptomatic pulmonary embolism (PE) is present in at least one-third of patients with deep venous thrombosis (DVT). However, knowledge about its influence on the prognosis of patients is limited. The aim of this study was to assess the prognostic impact of asymptomatic PE in patients with DVT and to explore risk fact...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0036-1584351
更新日期:2017-02-01 00:00:00
abstract::Immune thrombocytopenic purpura (ITP) is a bleeding disorder and is traditionally divided in acute and chronic forms based on the duration of the disease. Chronic ITP is characterized by a persistence of thrombocytopenia for more than 6 months. Ten to 20% of children with ITP and almost all adults will develop the chr...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-996054
更新日期:1998-01-01 00:00:00
abstract::C-type lectin-like receptor 2 (CLEC-2) has been identified on the surface of platelets as a receptor for a platelet activating snake venom, rhodocytin/aggretin. CLEC-2 belongs to a C-type lectin superfamily and binds to a sialoglycoprotein, podoplanin, in vivo. Platelets play a crucial role in hemostasis and thrombosi...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1604090
更新日期:2018-03-01 00:00:00
abstract::Rivaroxaban is approved in Europe and the United States for thromboprophylaxis following total joint arthroplasty. As the rate of obesity increases, confirming safety and efficacy in this patient population is paramount. This retrospective chart review assessed the efficacy and safety of rivaroxaban between two body m...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1676319
更新日期:2019-03-01 00:00:00
abstract::Rapid and accurate risk stratification is critical in determining the optimal treatment strategy for patients with acute pulmonary embolism (PE). Early identification of patients with normal blood pressure and a favorable prognosis (low-risk PE) might select a subset of patients for outpatient treatment, which is asso...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0036-1597287
更新日期:2017-07-01 00:00:00
abstract::Quiescent pulmonary endothelium establishes an antithrombotic, anti-inflammatory surface that promotes blood flow. However, the endothelium rapidly responds to injury and inflammation by promoting thrombosis and enabling the directed transmigration of inflammatory cells, such as neutrophils, into the alveolar airspace...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0030-1253452
更新日期:2010-04-01 00:00:00
abstract::Although not reviewed during this session of the Workshop, other reactions in the hemostatic pathways are relevant to tumor-host cell interactions, are potential targets for antimetastatic agents, and are therefore included in Figure 1 and Table 1. For example, elsewhere in this issue of Seminars Loskutoff reviews the...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-1002765
更新日期:1988-01-01 00:00:00
abstract::As the understanding of the genetic basis of the inherited thrombophilias has increased over recent years, their routine diagnostic genetic analysis has also matured. This review considers methods used to test for the factor V (F5) Leiden mutation and prothrombin 20210A (F2 c.*97G>A) allele, and analysis of the SERPIN...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1321491
更新日期:2012-09-01 00:00:00
abstract::A series of sulfated bis-lactobionic acid amides was prepared. The compounds comprise highly charged poly-anions of very low molecular weight. Usually, the compounds contain 16 sulfate groups per molecule and are homogeneous, monodisperse substances. The molecular weights range from 2388 to 2514. The compounds were ev...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Thrombotic thrombocytopenic purpura (TTP) and atypical hemolytic uremic syndrome (aHUS) are thrombotic microangiopathies (TMAs) that can present in pregnancy. The presentation can be with typical microangiopathic features and thrombocytopenia, but there is also a significant risk of in-utero fetal loss. TTP presents m...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0036-1587683
更新日期:2016-10-01 00:00:00
abstract::These results show that heparin and dextran sulfate protect endothelial cells from oxygen-free radicals. Heparan sulfate and dermatan sulfate showed mild protection when measuring cell viability but none when examining the presence of LDH in media. These GAGs are obviously not as effective as heparin and dextran sulfa...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Thrombosis development in either arterial or venous system remains a major cause of death and disability worldwide. This poorly controlled in vivo clotting could result in many severe complications including myocardial infarction, venous thromboembolism, stroke, and cerebral venous thrombosis, to name a few. These con...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0039-1697949
更新日期:2020-06-01 00:00:00
abstract::There is a persuasive body of evidence suggesting that tissue factor (TF) is a major determinant of tumor progression. In addition to its "traditional" function as the initiator of hemostasis, TF may support tumor progression through signaling mechanisms involving either direct signal transduction through the TF cytop...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1079255
更新日期:2008-03-01 00:00:00
abstract::The long-term success rate of coronary angioplasty is only 50 to 70% due to restenosis. The pathophysiologic mechanism of this event is mainly mediated by smooth muscle cell proliferation. To some extent, it can be inhibited by heparin. The introduction of LMWHs allows for prophylaxis against restenosis on an outpatie...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::Each bone marrow megakaryocyte (MK) releases thousands of platelets into the circulation, and the underlying molecular and cellular mechanisms recently have received intense scrutiny. Genetic studies are beginning to clarify the mechanisms by which transcription factors help distinguish MK progenitors from other blood...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2004-833474
更新日期:2004-08-01 00:00:00
abstract::Current evidence indicates that prolonged air travel predisposes to venous thrombosis and pulmonary embolism. An effect is seen once travel duration exceeds 6 to 9 hours and becomes obvious in long-haul passengers traveling for 12 or more hours. A recent records linkage study found that increase in thrombosis rate amo...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2005-863810
更新日期:2005-02-01 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::Clinical and laboratory data of children with von Willebrand disease (VWD) types have been derived from retrospective studies and small case series. This article reports on the clinical and laboratory data of a large pediatric cohort in one single Argentinian center. The biological and clinical responses to desmopress...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0031-1281043
更新日期:2011-07-01 00:00:00
abstract::Patients treated with oral anticoagulants (OAC) carry a 7- to 10-fold higher risk of intracerebral hemorrhage (ICH) than patients without OAC. ICH related to oral anticoagulation (OAC-ICH) is a particularly severe form of stroke. The overall incidence of OAC-ICH ranges between 2 and 9 per 100,000 population/year and i...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0033-1357506
更新日期:2013-11-01 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::Clinicians prescribing new oral anticoagulants (OACs; dabigatran, rivaroxaban, and apixaban) should be aware of the exclusion criteria related to bleeding risks defined in published clinical studies. At least a quarter of patients currently using warfarin have an exclusion criterion that may prevent easy transition to...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0031-1300948
更新日期:2012-02-01 00:00:00
abstract::Despite long-standing knowledge about the relationship between thrombosis and atherosclerosis, the specific role of thrombin in modulating atherosclerosis and the response to vascular injury is not well understood. Thrombin receptor stimulation in vitro signals many cellular events that are associated with the respons...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-999001
更新日期:1996-01-01 00:00:00
abstract::Platelet-lowering therapy in myeloproliferative disorders includes cytostatic drugs, mainly hydroxyurea, interferon alpha, and anagrelide. Anagrelide is the latest addition to the therapeutic arsenal, and the basis for its use is reviewed. The platelet-lowering efficacy is 70 to 80% in essential thrombocythemia, and t...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2006-939437
更新日期:2006-04-01 00:00:00
abstract::Plasma levels of total homocysteine (tHcy), a possible risk factor for vascular disease, are generally lower in women than in men and lower in premenopausal women than in postmenopausal women. This article reviews studies that have investigated associations of hyperhomocysteinemia with risk of vascular disease among w...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2000-8474
更新日期:2000-01-01 00:00:00
abstract::Endothelial phenotypic heterogeneity plays an important role in the susceptibility of the cardiovascular system to disease. Arteries and heart valves are susceptible to chronic inflammatory disease in regions of blood flow disturbance that implicates hemodynamic forces and transport characteristics as prominent influe...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0030-1253449
更新日期:2010-04-01 00:00:00
abstract::Pre-eclampsia (P-EC) is a multisystem disorder exclusive to pregnancy. It complicates ~2 to 8% of all pregnancies and remains a major cause of maternal mortality. P-EC is characterized by a profound hypercoagulable state. The delicate hemostatic balance that must be maintained in the uteroplacental circulation during ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0030-1270336
更新日期:2011-03-01 00:00:00
abstract::Mixing patient and normal plasma has been used for many years to assist with making decisions on which direction to proceed for further investigation of abnormally prolonged coagulation tests, namely, either individual coagulation factor measurement or the search for circulating anticoagulants. Mixing tests, however, ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1304717
更新日期:2012-06-01 00:00:00
abstract::The prothrombin time (PT) assay is the most clinically ordered coagulation test and is most often used for monitoring of vitamin K antagonist (VKA) therapy (e.g., warfarin), where results are expressed as an international normalized ratio (INR). The INR is in essence the patient's PT "mathematically adjusted" to a sta...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0028-1104538
更新日期:2008-10-01 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::Complications related to hemodialysis vascular access continue to have a major impact on morbidity and mortality. Vascular access dysfunction is the single most important factor that determines the quality of dialysis treatment. Vascular access stenosis is a common complication that develops in a great majority of pat...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1606180
更新日期:2018-02-01 00:00:00