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 molecular weight (MW). The released TFPI originally is not associated with lipoproteins, but it is not known whether it remains free circulating in plasma. A further question is whether the MW of heparin influences not only the release of TFPI but also its potential association with lipoproteins. In the present study, the release of free TFPI was compared with the release of total TFPI after application of four heparins with different MWs. Only the TFPI released by unfractionated heparin (UFH) circulated completely as free TFPI. With decreasing heparin MW, the percentage of released free TFPI on released total TFPI decreased to 57%. As a consequence, the longer the heparin chains are, the better they are at preventing the binding of the released, originally free, TFPI to plasma lipoproteins. Because only free TFPI is known to exhibit anticoagulant activity, the activity of released TFPI is better the higher the MW of the applied heparin is. In conclusion, in addition to the potency of heparin to mobilize TFPI, there is its influence on the circulating form, and thus the anticoagulant activity of the released TFPI depends on its MW.
journal_name
Semin Thromb Hemostjournal_title
Seminars in thrombosis and hemostasisauthors
Alban Sdoi
10.1055/s-2001-17952subject
Has Abstractpub_date
2001-10-01 00:00:00pages
503-11issue
5eissn
0094-6176issn
1098-9064journal_volume
27pub_type
临床试验,杂志文章,随机对照试验abstract::To elucidate the mechanisms by which hematopoietic progenitor cells selectively lodge in bone marrow, we established endothelial cell lines derived from bone marrow and lung and then examined the transendothelial migration of hematopoietic progenitor cells by using cells was examined by a Transwell migration assay. He...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-995854
更新日期:1998-01-01 00:00:00
abstract::A new in vitro system for the detection of platelet dysfunction, PFA-100, has been developed. It provides a quantitative measure of platelet function in anticoagulated whole blood. The system comprises a microprocessor-controlled instrument and a disposable test cartridge containing a biologically active membrane. The...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0032-1313612
更新日期:1995-01-01 00:00:00
abstract::Available data suggest that elevated triglyceride levels in plasma, associated with increased VLDL or chylomicron remnants, are associated with premature coronary artery atherosclerosis. Whether this is a direct effect or as a result of the association of hypertriglyceridemia with decreased HDL as well as decreased LD...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1002768
更新日期:1988-04-01 00:00:00
abstract::Three commercial prothrombin complex concentrates (PCC) were compared in vitro. Differences in the activities or contents, respectively, of the PCC factors FII, FVII, FIX, FX and the proteins C, S, and Z (antigen) in particular were found. Global tests of activated factors did not reveal marked differences between the...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-995838
更新日期:1998-01-01 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::Recent evidence suggests that lupus anticoagulants are immunologically distinct from the anticardiolipin antibodies. Nevertheless, the associated clinical complications exhibited by the two groups of antibodies are similar. They have been shown to have a strong association with a history of arterial and venous thrombo...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1001886
更新日期:1994-01-01 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
abstract::Central venous catheters (CVCs) are important for the treatment of patients with cancer, especially in the perioperative and palliative care settings. These devices not only allow for the administration of chemotherapy, parenteral nutrition, and other intravenous therapies, but they may also improve the patients' qual...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0034-1371005
更新日期:2014-04-01 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::The bidirectional interaction between coagulation and inflammation, which is relevant in various disease states that are dominated by systemic inflammatory responses, such as severe infection or chronic vascular disease, is modulated by metabolic factors. Changes in lipoprotein metabolism affect the inflammation-induc...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1066020
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:The normalized dilute Russell viper venom time (DRVVT) ratio provides a robust assay methodology for lupus anticoagulant (LA) detection. OBJECTIVES:We evaluated six normalized DRVVT LA screen and confirm systems for inter-method consistency. Reagents were purchased from Diagnostica Stago, Inc. (Parsippany, ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0033-1334865
更新日期:2013-04-01 00:00:00
abstract::Multislice detector spiral computed tomography (MSCT) is a noninvasive modality for visualization and evaluation of atherosclerosis in vivo in different arterial beds. Rapid technical advances led to a significant improvement of the diagnostic accuracy of coronary MSCT angiography. The most popular clinical applicatio...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2007-969035
更新日期:2007-03-01 00:00:00
abstract::Bleeding can be a serious complication of surgery, and topical thrombin is widely used as an adjunct to hemostasis in diverse surgical settings. The potent hemostatic properties of thrombin derive from its ability to activate platelets directly to aggregate and adhere to damaged vessels and to catalyze the formation s...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2006-939558
更新日期:2006-04-01 00:00:00
abstract::The articular problems of patients with hemophilia begin in infancy when minor injuries result in hemarthroses. Early continuous prophylaxis (from cradle to college) is of paramount importance because the immature skeleton is very sensitive to the complications of hemophilia; severe structural deficiencies may develop...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2005-922223
更新日期:2005-11-01 00:00:00
abstract::Trauma remains one of the major causes of death and disability all over the world. Uncontrolled blood loss and trauma-induced coagulopathy represent preventable causes of trauma-related morbidity and mortality. Treatment may consist of allogeneic blood product transfusion at a fixed ratio or in an individualized goal-...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1598062
更新日期:2017-06-01 00:00:00
abstract::Factor VIII inhibitory antibodies occur following treatment in more than 30% of subjects with severe factor VIII deficiency. Almost all inhibitor formation occurs in subjects with little if any circulating factor VIII. In the absence of in utero exposure to endogenous or maternal factor VIII, these subjects probably r...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2000-9820
更新日期:2000-01-01 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::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::The identification of the JAK2 V617F mutation in patients with myeloproliferative disorders (MPDs) represents a major breakthrough in our understanding of the pathogenesis of these diseases. One year after its discovery, an impressive number of publications appeared. These articles confirmed most of the initial result...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2006-942755
更新日期:2006-06-01 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::Venous thromboembolic events (VTE) in children are mostly related to central venous lines (CVL), and are located in the central upper venous system. The incidence of VTE in children with CVL is significant. However, the majority of CVL-related VTE do not present with typical symptoms or are not recognized due to under...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2003-42588
更新日期:2003-08-01 00:00:00
abstract::Endothelial cells secrete von Willebrand factor (vWF) multimers that are larger than those found in the circulating plasma. These very large multimeric forms of vWF, capable of spontaneously binding to and agglutinating the blood platelets under conditions of high fluid shear rate, are degraded by a specific metallopr...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-2002-27819
更新日期:2002-04-01 00:00:00
abstract::Recently it was reported that chorionic villous hemorrhage (CVH) had a significant association with retroplacental hemorrhage (RPH). In this study, to determine whether CVH has a correlation with RPH or intervillous thrombosis (IVT), placentas associated with CVH were clinico-histopathologically investigated and compa...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-996046
更新日期:1998-01-01 00:00:00
abstract::Despite the improved therapeutic advances in the management of acute promyelocytic leukemia (APL), a significant early mortality during induction, also referred to as early death (ED), remains an obstacle for further improvement in outcome. Hemorrhagic complications are the most common cause of morbidity and mortality...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0039-1693478
更新日期:2019-09-01 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::Protein S is a vitamin K-dependent plasma glycoprotein circulating in plasma at a concentration of around 350 nM. Approximately 60% of protein S in human plasma is bound to the complement regulatory protein C4b-binding protein (C4BP) in a high-affinity, high-molecular-weight complex. Protein S in plasma has multiple a...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0037-1604092
更新日期:2018-03-01 00:00:00
abstract::Thrombosis is characterized by the formation of in vivo blood clots that are localized within arterial or venous blood vessels. These thrombi form beyond the need for physiologically healthy hemostatic responses and can lead to significant medical issues for affected individuals. Unfortunately, the existing standard-o...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-0039-1697946
更新日期:2020-07-01 00:00:00
abstract::In this short review I have tried to report the literature findings and describe some of our observations on fibrinolysis and atherosclerosis. Although at this time it is difficult to state that diminished FA plays a pathogenic role in atherosclerosis, it certainly seems to represent a risk factor. ...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-1003541
更新日期:1986-04-01 00:00:00
abstract::The age of the thrombus is probably a very important determinant of the outcome of thrombolysis. The clinical potential for rapidly dissolving thrombi by thrombolytic therapy is considerable because restoration of the blood flow can rescue the jeopardized district served by the occluded vessel such as for myocardial i...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章
doi:10.1055/s-2007-1002747
更新日期:1989-10-01 00:00:00
abstract::Several LMWHs are currently available for commercial use. The development status of each of these products in the area of prophylaxis, therapeutics, and other indications is given in Table 4. Enoxaparin and Fraxiparin appear to be the most developed LMWHs in both the surgical and medical areas. Many well-designed clin...
journal_title:Seminars in thrombosis and hemostasis
pub_type: 杂志文章,评审
doi:
更新日期:1991-01-01 00:00:00