Abstract：
:The potency for the inhibition of 5-hydroxytryptamine (5-HT)-induced human platelet aggregation by ketanserin, pipamperone, spiperone, cyproheptadine and BW 501 in vitro decreased as the reaction pH increased progressively from 7.4 to 8.6, the largest shift (X 1125) in IC50 value (pH 7.4: 4 X 10(-9) M; pH 8.6: 4.5 X 10(-6) M) being found for ketanserin. With such an alkaline pH-shift, the fraction of the ionized form of the drugs decreased, reduction of the inhibitory capacity and of the ionized fraction being strongly correlated. Ketanserin (40 mg orally, - 15 h) in human volunteers, completely inhibited the 5-HT-induced platelet aggregation measured ex vivo, when tested at a reaction pH of 7.4; without gassing with CO2 5% -O2 95%, the plasma pH became alkaline and the inhibitory potency of the drug was strongly reduced (-60%). This study demonstrates the importance of the reaction pH for the aggregation of human platelets induced by 5-HT and its inhibition by ketanserin.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
De Clerck F,Xhonneux B,Tollenaere JP,Janssen PAdoi
10.1016/0049-3848(85)90297-xsubject
Has Abstractpub_date
1985-12-01 00:00:00pages
581-96issue
5eissn
0049-3848issn
1879-2472pii
0049-3848(85)90297-Xjournal_volume
40pub_type
杂志文章abstract：:The release of arachidonic acid, and its subsequent conversion to thromboxane A2, is an important component of platelet activation. The precise mechanism of arachidonic acid release is unknown although cytosolic phospholipase A2 (cPLA2) has been implicated. In the present study the effects of three agonists, the serin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(98)00097-8
更新日期：1998-10-01 00:00:00
abstract：INTRODUCTION:Dermatan sulfate, a sulfated glycosaminoglycan, acts as an anticoagulant by accelerating the inhibition of thrombin by heparin cofactor II. MATERIALS AND METHODS:A low molecular mass dermatan sulfate was obtained by peroxy-radical depolymerization from a parent dermatan sulfate. Chemical characterization ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2007.09.001
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Advances in medical and surgical therapy in children have resulted in increased survival in children with primary illnesses. However, thrombosis is a serious complication of this success and results in mortality and morbidity. Prevention or treatment of thrombosis using warfarin is challenging in children du...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2008.07.012
更新日期：2009-03-01 00:00:00
abstract：BACKGROUND:Venous thromboembolism (VTE) can be the first manifestation of cancer; however, the current incidence of malignancy in unselected patients with first unprovoked VTE needs to be confirmed. MATERIAL AND METHODS:Between March 1st, 2013 and February 28th, 2015 we included and followed-up all patients living in ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.02.151
更新日期：2018-04-01 00:00:00
abstract：:The ability of parenteral heparin to release the capillary-bound enzymes lipoprotein lipase (LPL) and hepatic triglyceride lipase (HTGL) into the circulation is shared by several other sulphated polysaccharides. The lipase-releasing activity in rats of two unfractionated heparins has been compared with that of charact...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90068-6
更新日期：1989-08-01 00:00:00
abstract：:Human saphenous veins were analyzed for presence of plasminogen activators (t-PA) in the endothelium of the vessel walls by immunohistochemical techniques. We used a polyclonal rabbit antihuman t-PA antibody, a monoclonal mouse-antihuman t-PA and a goat antibody to low molecular weight urokinase. To demonstrate presen...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90240-9
更新日期：1986-02-01 00:00:00
abstract：:Heavy menstrual bleeding (HMB) is defined as excessive menstrual blood loss (MBL) >80 mL per cycle, that interferes with a woman's physical, emotional, social wellbeing and quality of life. Aetiology is due to underlying uterine pathologies, coagulopathy, ovulation dysfunction, or iatrogenic. Up to 20% of women with H...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/S0049-3848(17)30072-5
更新日期：2017-03-01 00:00:00
abstract：:We have investigated the role of platelet activating factor (PAF) in the pathogenesis of a murine model of traumatic shock using WEB 2086, a specific antagonist of PAF. WEB 2086 (0.5 mg/kg) significantly reversed the decrease in mean arterial blood pressure (MABP) induced by PAF (0.3 micrograms/kg) in anesthetized rat...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90107-2
更新日期：1989-02-01 00:00:00
abstract：PURPOSE:The right ventricular outflow tract (RVOT) velocity time integral (VTI), an echocardiographic measure of stroke distance, correlates with cardiac index. We sought to determine the prognostic significance of low RVOT VTI on clinical outcomes among patients with acute pulmonary embolism (PE). MATERIALS AND METHO...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.06.049
更新日期：2020-11-01 00:00:00
abstract：INTRODUCTION:A higher level of health insurance coverage may be related to better quality of care and outcomes. Whether insurance status is associated with anticoagulation quality and clinical outcomes in patients with venous thromboembolism (VTE) is unknown. METHODS:We studied 819 elderly patients treated with vitami...
journal_title：Thrombosis research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.thromres.2018.11.011
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:Intravenous fluids can impair coagulation and affect the endothelial glycocalyx, whereas glycocalyx shedding itself can cause an impairment of clot formation and firmness. We hypothesized that hydroxyethyl starch 6% (130/0.4) has a more distinct effect on coagulation and glycocalyx shedding than albumin 5%. ...
journal_title：Thrombosis research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.thromres.2019.10.020
更新日期：2019-11-01 00:00:00
abstract：INTRODUCTION:Endothelial dysfunction plays an essential role in the pathogenesis of sepsis. The study aimed to illustrate the associations between the dynamic change (from day 1 to day 7) in biomarker concentration of endothelial dysfunction and outcomes in severe sepsis and septic shock in the intensive care unit (ICU...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2018.09.059
更新日期：2018-11-01 00:00:00
abstract：:The enzymatic and fibrinolytic properties of glycosylated and nonglycosylated recombinant human pro-urokinase (pro-UK) produced in yeast Pichia pastoris were characterized and compared with those of Escherichia coli and mammalian cell-derived pro-UK. Among the five different forms of pro-UK, the yeast glycosylated pro...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00349-2
更新日期：2000-12-01 00:00:00
abstract：:Fibrinogen has been reported to interact with phospholipid; however, the properties of this binding interaction have not been characterized. Purified preparations of human fibrinogen bound to small unilamellar vesicles containing phosphatidylserine (PS) as measured by light scattering and radioisotope filtration. Bind...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00058-4
更新日期：1999-09-15 00:00:00
abstract：:It is known that a low-molecular-weight heparin (LMWH) is more effective than unfractionated heparin in unstable angina/non-Q-wave myocardial infarction (UA/NQMI) and the platelet GPIIb/IIIa receptors play an important role in acute myocardial infarction (AMI). Therefore, enoxaparin might have a similar advantage over...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00242-0
更新日期：2001-05-01 00:00:00
abstract：INTRODUCTION:Microparticles (MPs) are small fragments of apoptotic or activated cells that may contribute to pathological processes in cardiovascular diseases. In studies of MPs in clinical cohorts, it is unclear if observed changes in MP composition are a cause or a result of the cardiovascular disease being studied. ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2011.09.016
更新日期：2012-07-01 00:00:00
abstract：:To estimate the effect of dilazep in preventing restenosis after a transluminal angioplasty, we have attempted an animal experiment in which the efficacy of drug was tested on an angioplastic injury superimposed on to atherosclerotic lesions. Using a modification of Block's method, atherosclerotic lesions first were m...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90122-9
更新日期：1989-06-15 00:00:00
abstract：:The clinical feature in patients with congenital factor VII deficiency is in part dependent on the underlying genetic defect, but the mechanisms influencing the genotype-phenotype correlation remain to be fully elucidated. In addition, thromboembolic events have been reported. Compensatory mechanisms involving vitamin...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(00)00410-2
更新日期：2001-03-15 00:00:00
abstract：:The presence of one acidifying Cl-/HCO3- exchange mechanism in human platelets has not been previously reported. This paper demonstrates that this mechanism does function and that it increases its activity after stimulation with thrombin. On resuspension of BCECF-loaded platelets in a chloride-free medium (gluconate r...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2004.11.012
更新日期：2005-01-01 00:00:00
abstract：:Hemorrhagic tendency is frequent in uremic patients and is often associated with prolonged bleeding time and decreased platelet functions in vitro. Similarly, in multiple myeloma, platelet functions are affected, mainly by the inhibitory effect of paraprotein. We have studied patients with renal insufficiency and mult...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(02)00003-8
更新日期：2002-02-15 00:00:00
abstract：:The immunogenic potential of natural and recombinant hirudin was investigated using baboons. Animals received 4 intravenous hirudin injections of 1,000 antithrombin units/kg at certain times (day 1, 3, 8 and 42) and were checked for an immune response. None of the tests performed (in vitro histamine-release, ELISA for...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(91)90167-u
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:To date, only a few case studies have reported occurrence of thrombosis in patients with VonWillebrand disease (VWD). No studies have looked at its incidence in this patient population. The aim of this study was to test our hypothesis that decreased VonWillebrand factor (VWF) levels confer a protective effect...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2012.09.005
更新日期：2012-11-01 00:00:00
abstract：:Ajoene, the major antiplatelet compound derived from garlic, synergistically potentiates the antiaggregatory action of prostacyclin, forskolin, indomethacin and dypiridamole. For collagen-induced platelet aggregation in human PRP, the ID50 for ajoene is 95 +/- 5 microM. However, in the presence of the antiaggregatory ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(86)90259-8
更新日期：1986-05-01 00:00:00
abstract：OBJECTIVES:To evaluate the role of filter implantation in reducing the incidence of fatal pulmonary embolism during the endovascular treatment of thrombosis in the major tributary of the superior vena cava (SVC). METHODS:From October 2004 to October 2008, we conducted a cohort study of 40 patients with thrombosis of t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.04.009
更新日期：2014-07-01 00:00:00
abstract：INTRODUCTION:The use of oral anticoagulant therapy is increasing in children. Managing anticoagulant therapy in children presents unique challenges, including poor venous access. The advent of point-of-care (POC) monitoring of anticoagulant therapy offers a potential solution to this challenge. This paper reviews the p...
journal_title：Thrombosis research
pub_type： 杂志文章,meta分析
doi：10.1016/j.thromres.2005.03.008
更新日期：2006-01-01 00:00:00
abstract：:The influence of acute hypoxemia on blood fibrinolytic activity was investigated in 12 healthy males. Physiologically significant hypoxemia was produced by inspiration of 13% oxygen for 30 min. Six healthy males were exposed to hypoxemia at rest and 6 males to hypoxemia during exhaustive physical exercise on an ergocy...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90222-2
更新日期：1987-02-15 00:00:00
abstract：BACKGROUND:Few studies investigated the relationship between fibrinolysis abnormalities and residual pulmonary perfusion defects after acute pulmonary embolism (PE). OBJECTIVE:To assess the fibrinolytic profile in patients with prior PE in relation to the extent of scintigraphically detectable residual perfusion abnor...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2014.07.013
更新日期：2014-09-01 00:00:00
abstract：:This study investigates the effect on human platelet function of two sesquiterpene lactones from Arnica montana L., helenalin (H) and 11 alpha,13-dihydrohelenalin (DH). Both compounds inhibited collagen-induced platelet aggregation, thromboxane formation and 5-hydroxytryptamine secretion in a concentration-dependent m...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(90)90151-2
更新日期：1990-03-15 00:00:00
abstract：:The sequel of survivors after hospitalisation for an acute myocardial infarction was studied during the following 15 years in 48 patients treated with streptokinase and in 41 controls. No significant difference was seen in the morbidity or mortality during the first 6 months nor in the mortality thereafter. ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90233-0
更新日期：1984-08-15 00:00:00
abstract：INTRODUCTION:Peripheral artery disease (PAD) affects 8.5 million Americans and thus improving our understanding of PAD is critical to developing strategies to reduce disease burden. The objective of the study was to determine the association of ABO blood type with ankle brachial index (ABI) as well as prevalent and inc...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.02.018
更新日期：2017-05-01 00:00:00
