Abstract：
:Most of the knowledge acquired on platelet function and biochemistry has been obtained from platelets prepared from blood anticoagulated with sodium citrate. Using washed platelets from human blood (PNB) to which no anticoagulants were added, we report on responses not observed with platelets prepared from citrate-anticoagulated blood. Native blood was passed rapidly (within 5 min of venepuncture) through a Sephadex G-25/G-50 column to remove divalent ions and thus prevent coagulation. Platelets were separated from the gel-filtered blood by differential centrifugation. Responses of PNB to thrombin, collagen, calcium ionophore, ristocetin, release of 14C-5hydroxytryptamine and beta-thromboglobulin, and generation of thromboxane A2 were similar to those observed for citrated platelets. Comparison of PNB with thrombin-treated platelets, which demonstrate an increase of platelet factor 3 activity, a reduction of the adenylate energy charge and an impairment of clot retraction, indicated the absence of platelet activation. Unlike citrated platelets, however, aggregation of PNB in response to ADP was irreversible in the presence of Ca2+ and fibrinogen, even at concentrations as low as 0.2 microM ADP, with aggregation taking up to 25 times longer to reach the same extent of aggregation as for citrated platelets. PNB did not aggregate to epinephrine even in the presence of Ca2+ and fibrinogen. Sodium citrate impaired ADP-induced aggregation and clot retraction of PNB. Thus citrate affects platelet function and may cause changes resulting in the unphysiological behaviour and responses of platelets.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Bowry SK,Müller-Berghaus Gsubject
Has Abstractpub_date
1986-10-21 00:00:00pages
172-7issue
2eissn
0340-6245issn
2567-689Xjournal_volume
56pub_type
杂志文章abstract：:Graduated elastic compression stockings (GECS) are commonly used in the primary prevention of deep vein thrombosis (DVT); however, their role in preventing recurrent DVT and also post-thrombotic syndrome is less well established. The aim of this review was to investigate the effect of GECS after DVT. A literature sear...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：2006-10-01 00:00:00
abstract：:Long noncoding ribonucleic acids (lncRNAs) have been defined as transcripts which are > 200 ribonucleotides in size and are not translated into protein. Recent work has shown that many lncRNAs do have specific molecular functions and biological effects, and are involved in a growing number of diseases, including ather...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1055/s-0039-1692680
更新日期：2019-08-01 00:00:00
abstract：:Heparin cofactor II (HC II) is a heparin-dependent inhibitor of thrombin, distinct from antithrombin III (AT III). This study was designed to evaluate its metabolism in healthy subjects. Purified HC II was labelled with 125I by the lactoperoxidase-glucose oxidase technique. The biological activity of the HC II was unc...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1985-10-30 00:00:00
abstract：:We have investigated the intracellular mechanisms involved in microtubular remodelling by thrombin and its possible involvement in platelet aggregation and secretion. Platelet stimulation with thrombin induces a time- and concentration-dependent regulation of the microtubular content, which was found to be maximally e...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2007-08-01 00:00:00
abstract：:Transient procoagulant states resulting in failure of recanalization or rethrombosis of the reperfused artery during thrombolytic therapy might be due to an inhibitory effect of plasmin on the anticoagulant properties of protein C. We therefore studied the effect of plasmin on protein C (PC) and activated protein C (A...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:In a group of 705 healthy middle-aged men, we have examined the relationship between plasma levels of Factor VII (FVII) c and Factor VII antigen (FVIIag) and two polymorphisms in the FVII gene. One polymorphism alters arginine at position 353 to glutamine (R/Q), and the other is the result of a 10 base pair (bp) inser...
journal_title：Thrombosis and haemostasis
pub_type： 临床试验,杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：:Previous studies have shown an association between serum C-reactive protein (CRP) and cardiovascular disease (CVD) risk. The roles of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNFalpha) are less well established. The aim of the present study was to analyze the associations of CRP, IL-6 and TNFalpha with in...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH05-08-0571
更新日期：2006-03-01 00:00:00
abstract：:Adhesion of rat blood platelets to native rat tail collagen fibrils was studied in the electron microscope under conditions that preserved collagen-associated proteoglycans (CAPG). The CAPG molecules were aligned in chain-like configurations that encircled the fibrils with a 65 nm period; they appeared to coat the fib...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-08-04 00:00:00
abstract：:Although there is evidence that altitude increases the platelet count, its effect on the platelet precursor stimulating factor, thrombopoietin (TPO), is unclear. Unlike erythropoietin, TPO appears largely unresponsive to exogenous signals. In a study in 16 healthy volunteers, we report the effects of altitude exposure...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH04-02-0086
更新日期：2005-01-01 00:00:00
abstract：:By a method of counting single platelets in diluted whole blood, platelet aggregates were quantified ex-vivo. Four groups: 20 thrombotic patients, 10 non-thrombotic patients, 10 healthy old controls and 10 healthy young controls were included in the study. Using a 19 gauge needle, with and without tubing, venous blood...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1986-08-20 00:00:00
abstract：:Despite reports that Tris [tris (hydroxymethyl)aminomethane] affects platelets, it is often used to buffer suspending media. Human or rabbit platelets were washed and resuspended in Tyrode solution containing apyrase and 0.35% albumin. Addition of 15 mM Tris partially inhibited primary aggregation induced by 10 microM...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1984-04-30 00:00:00
abstract：:This review collects evidence about immune and inflammatory functions of platelets from a clinician's point of view. A focus on clinically relevant immune functions aims at stimulating further research, because the complexity of platelet immunity is incompletely understood and not yet translated into patient care. Pla...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：10.1160/TH14-02-0146
更新日期：2014-10-01 00:00:00
abstract：:Recent data has shown that hormone therapy (HT) increases the risk of cardiovascular and thromboembolic disease, particularly in users of oral HT. Phytoestrogens are popular alternatives to oestrogen therapy; however, their effects on cardiovascular risk are unknown. We investigated the effect of the phytoestrogen, ge...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1160/TH10-03-0201
更新日期：2010-12-01 00:00:00
abstract：:We studied the recovery pattern of platelet malondialdehyde (MDA) formation after a single intake of various doses of aspirin (ASA). In normal subjects, there were striking differences in the recovery pattern between large doses (1,000 or 500 mg) and small doses (100 or 50 mg) of oral ASA. The 2 day lag phase was pres...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1982-08-24 00:00:00
abstract：:During the collection of samples for plasma beta-thromboglobulin (beta-TG) determination, it is well established that artificially high values can be observed due to in-vitro release. To estimate the reliability of a single beta-TG measurement, blood samples were collected simultaneously from both arms on two separate...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1987-04-07 00:00:00
abstract：:Assembly of fibronectin into the provisional fibrillar matrix of embryonic tissues and wounds is a complicated process by which the intracellular cytoskeleton determines the pattern of assembly of extracellular matrix and vice versa. Assembly is restricted to dimeric fibronectin molecules with intact N-terminal module...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1995-07-01 00:00:00
abstract：:Inhibition of adenylate cyclase in intact platelets by addition of compounds such as 2', 5' - dideoxyadenosine prevented the inhibition of platelet aggregation by PGE1 but did not affect the responses of platelets to aggregating agents in the absence of PGE1. This confirms that cyclic AMP mediates the effects of PGE1 ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,评审
doi：
更新日期：1978-10-31 00:00:00
abstract：:Fibrinogen degradation products were investigated for leukocyte chemotactic activity and for enhancement of vascular permeability. Both activities increased progressively with plasmin digestion of fibrinogen. Active fragments were partially purified from 24 hr-plasmin digests. Molecular weights of the permeability inc...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-02-23 00:00:00
abstract：:The prevention and treatment of venous thromboembolism (VTE) remains a clinical challenge, primarily owing to drawbacks associated with the use of heparins and vitamin K antagonists (VKAs). These and other factors, including a growing elderly population, mean that VTE presents a continuing burden to patients and physi...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,meta分析,评审
doi：10.1160/TH14-06-0484
更新日期：2015-02-01 00:00:00
abstract：INTRODUCTION: Bleeds such as intra-ventricular (IVH) and pulmonary haemorrhage (PH) are life-threatening events in extremely low birth weight (ELBW) infants. Serial coagulation monitoring by measuring the international normalized ratio (INR) with small volume samples might facilitate early diagnosis and possibly preven...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0038-1655744
更新日期：2018-07-01 00:00:00
abstract：:We examined the antithrombotic activity of a novel synthetic inhibitor of factor Xa, YM-60828, in an electrically-induced carotid artery thrombosis model in rats. In the first experiment, the antithrombotic activity of YM-60828 after i.v. infusion was compared with those of heparin, darteparin and argatroban. Test dru...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1998-02-01 00:00:00
abstract：:It was our aim to assess whether factor V Leiden (FVL) and G20210A prothrombin (FII) mutation are associated with the presence of residual vein obstruction (RVO) after a standard course of anticoagulation for a first episode of idiopathic proximal deep-vein thrombosis (DVT) of the lower limbs, with or without symptoma...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1160/TH12-01-0041
更新日期：2013-03-01 00:00:00
abstract：:Multiple clinical trials have proven that thrombolytic therapy is an effective treatment for acute myocardial infarction. Spontaneous intracranial hemorrhage (ICH) occurs in a small percentage of patients as a result of the treatment. The etiology of the ICH is unknown and there is currently no established experimenta...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:It is widely anticipated that large platelets are more reactive than small platelets. This was mainly shown in Ca2+-poor media albeit extracellular Ca2+ is utilized by platelets for activation. We determined the impact of extracellular Ca2+ on functional differences between large and small platelets in response to thr...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/s-0040-1712447
更新日期：2020-07-01 00:00:00
abstract：:An assay for the quantification of pentosan polysulphate (PPS) in plasma is described. As PPS has been shown to potentiate thrombin inhibition by the second heparin cofactor (HC II), the principle of this assay was to measure the formation of covalent complexes between HC II and the thrombin generated in plasma after ...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1986-12-15 00:00:00
abstract：BACKGROUND:Prospective studies on the incidence of thrombosis in asymptomatic individuals with hereditary protein C- or protein S deficiency have not been performed so far. OBJECTIVE:We have carried out a prospective cohort study in 44 asymptomatic protein C- and protein S deficient subjects and in 49 asymptomatic non...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：:Patients with atrial fibrillation at moderate to high risk of stroke are not always anticoagulated despite a lack of contraindications to vitamin K antagonists (VKAs) like warfarin. These patients are treated with aspirin, aspirin-clopidogrel combination therapy or even receive no thromboprophylaxis. The oral direct t...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章,meta分析
doi：10.1160/TH10-10-0642
更新日期：2010-12-01 00:00:00
abstract：:Hereditary defects of the von Willebrand factor (VWF) gene cause von Willebrand's disease (VWD) which shows great variability dependent on the nature and location of the mutation. We here describe the characteristics of a substitution of methionine for threonine 1156 in the D3 domain of the VWF, i.e. the domain involv...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:Patterns of VIIIR:AG in the plasma and its fractions, cryoprecipitate and cryosupernatant, from various types of von Willebrand's disease (vWd) were observed by SDS 1.5% polyacrylamide gel electrophoresis - cross immunoelectrophoresis (SDS PAGE - CIE). VIIIR:AG in normal cryoprecipitate showed several precipitin peaks...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：
更新日期：1981-06-30 00:00:00
abstract：BACKGROUND: Evaluation of thromboembolic risk is essential in anticoagulated atrial fibrillation (AF) patients. The CHA2DS2-VASc score is largely validated and recommended by most guidelines. The GARFIELD-AF Stroke score has been proposed as an alternative risk score. METHODS: We analyzed warfarin-treated patients fro...
journal_title：Thrombosis and haemostasis
pub_type： 杂志文章
doi：10.1055/a-1333-4448
更新日期：2020-12-09 00:00:00
