Abstract:
:The endocannabinoid anandamide (AEA) has many neurovascular activities. However, it is not yet clear how AEA can be metabolized at the neurovascular interface, and how it can move through the vascular and the cerebral compartments. The results reported in this article show that isolated bovine brain microvessels, an ex vivo model of the blood-brain barrier, have detectable levels of endogenous AEA and possess the biochemical machinery to bind and metabolize it, i.e. type-1 and type-2 cannabinoid receptors (CB1R and CB2R), a selective AEA membrane transporter (AMT), an AEA-degrading fatty acid amide hydrolase, and the AEA-synthesizing enzymes N-acyltransferase and N-acyl-phosphatidylethanolamines-specific phospholipase D. We also show that activation of CB1R enhances AMT activity through increased nitric oxide synthase (NOS) activity and subsequent increase of NO production. AMT activity is instead reduced by activation of CB2R, which inhibits NOS and NO release. In addition, binding experiments and immunoelectronmicroscopy demonstrate that different endothelial cells vary in the expression of CB1R and CB2R on the luminal and/or abluminal sides. The different localization of CBRs can lead to a diverse effect on AMT activity on the luminal and abluminal membranes, suggesting that the distribution of these receptors may drive AEA directional transport through the blood-brain barrier and other endothelial cells.
journal_name
Thromb Haemostjournal_title
Thrombosis and haemostasisauthors
Maccarrone M,Fiori A,Bari M,Granata F,Gasperi V,De Stefano ME,Finazzi-Agrò A,Strom Rkeywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
117-27issue
1eissn
0340-6245issn
2567-689Xpii
06010117journal_volume
95pub_type
杂志文章abstract::Desmopressin acetate administration markedly stimulates release of tissue plasminogen activator (t-PA) from vascular endothelial cells. The mechanism for this effect is unknown. Because infusion of epinephrine has been shown to increase t-PA levels, we examined the role of endogenous catecholamine mediation of t-PA re...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1988-04-08 00:00:00
abstract::The 50 laboratories of the Netherlands Federation of Thrombosis Services, covering a population of 9 million and responsible for the laboratory control of approximately 150,000 patients under oral anticoagulation, have participated since 1974 in a voluntary external and internal quality control program. The external p...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1977-06-30 00:00:00
abstract::The effects of G4120, a cyclic Arg-Gly-Asp (RGD) containing peptide which inhibits fibrinogen binding to the platelet receptor GPIIb/IIIa, on thrombolysis with recombinant tissue-type plasminogen activator (rt-PA) were investigated in a combined arterial and venous thrombosis model in heparinized dogs. The arterial th...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1992-06-01 00:00:00
abstract::Platelet-rich plasma was obtained 24 hr after the race ended from athletes who ran in the London marathon. The platelets were only marginally less sensitive to adrenaline than were those of non-runners using conventional aggregation tests. However, the runners' platelets were much more sensitive to inhibition by prost...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-07-29 00:00:00
abstract::Primary prevention of cardiovascular events with aspirin in patients with elevated cardiovascular risk, including diabetics, is currently under intense discussion. Data from meta-analyses suggests that the efficacy of aspirin in these patients is low, whereas there is a significantly increased bleeding tendency. Howev...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0039-1694774
更新日期:2019-10-01 00:00:00
abstract::The fibrinolytic capacity of 121 patients with a history of venous thrombosis and/or pulmonary embolism was studied by venous occlusion technique, at earliest 3 months after the last thromboembolic episode. After discontinuation of oral anticoagulation treatment the clinical course of the patients was followed and new...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-10-31 00:00:00
abstract::In 70-80% of cases, pulmonary embolism is the consequence of lower extremity deep vein thrombosis. It has been demonstrated that the most common coagulation defect predisposing to venous thrombosis, resistance to activated protein C (APC), is not associated with an increased risk for pulmonary embolism, but the eviden...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
abstract::We investigated plasma activated factor VII (FVIIa) levels in uremic patients (nondialysis group: n = 38; dialysis group: n = 36) and healthy controls (n = 32). We also measured the plasma levels of thrombomodulin (an indicator of endothelial cell injury) and tissue factor. Plasma FVIIa showed a marked increase in the...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
abstract::The correlation between homocysteine and vascular disease has been assessed in several clinical studies that demonstrated that elevation of plasma total homocysteine (tHcy) was an independent risk factor for atheriosclerotic disease. Major advances of homocysteine metabolism disorders have been made during the last fe...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1160/TH09-06-0393
更新日期:2010-05-01 00:00:00
abstract::Fibrin polymerisation is mediated by interactions between knobs 'A' and 'B' exposed by thrombin cleavage, and holes 'a' and 'b'. We demonstrated markedly delayed thrombin-catalysed fibrin polymerisation, through B:b interactions alone, of recombinant γD364H -fibrinogen with impaired hole 'a'. To determine whether reco...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH12-09-0684
更新日期:2013-02-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1980-08-29 00:00:00
abstract::Platelet membrane glycoproteins (GP) IIb/IIa and rap1b, a 21 kDa GTP binding protein, associate with the triton-insoluble, activation-dependent platelet cytoskeleton with similar rates and divalent cation requirement. To examine the possibility that GPIIb/IIIa was required for rap1b association with the cytoskeleton, ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::Inherited severe hypoplasminogenaemia is a multisystemic disorder leading to deficient extravascular fibrinolysis. As a clinical consequence wound healing capacity of mucous membranes is markedly impaired leading to ligneous conjunctivitis and several other manifestations. Here we report the molecular genetic and clin...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH10-04-0216
更新日期:2011-03-01 00:00:00
abstract::Plasminogen activator that is associated with the development of hypersensitivity granulomas (gPA) was partially purified from a saline soluble fraction of murine lepromas elicited in "resistant" mice, C57BL/6N. The gPA was shown to consist of two subspecies (23,000 and 48,000 in molecular weight) with essentially ide...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-12-29 00:00:00
abstract::The behavior of 125I-labeled recombinant hirudin towards the uninjured and de-endothelialized rabbit aorta wall has been studied in vitro and in vivo to determine its usefulness as an indicator of thrombin activity associated with the aorta wall. Thrombin adsorbed to either sulfopropyl-Sephadex or heparin-Sepharose bo...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::The cellular phospholipid, lysophosphatidic acid (LPA), released by activated platelets and fibroblasts or, at high levels, from ovarian and cervical carcinomas is a powerful serum mitogen that may modulate several signaling pathways in endothelial cells (EC). Hence, LPA could function in a paracrine manner during EC-...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::Thrombotic complications are frequently associated with atherosclerosis. Lysophosphatidylcholine (LPC), a component accumulated in oxidatively modified LDL (ox-LDL), is known to play a crucial role in the initiation and progression of atherosclerotic vascular lesions. Since a vascular anticoagulant, tissue factor path...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::We have established a new, enzyme-linked immunosorbent assay (ELISA) for the detection of ADAMTS13 antigen using purified polyclonal rabbit anti-human ADAMTS13 IgG. Normal plasma ADAMTS13 antigen levels span a concentration of 740-1420 ng/ml (median 1080 ng/ml) resulting in an ADAMTS13 activity to antigen ratio of 0.4...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH05-08-0550
更新日期:2006-02-01 00:00:00
abstract::The recombinant plasminogen activator BM 06.022 consists of the kringle 2 and the protease domains of human t-PA and is unglycosylated because of the expression in Escherichia coli. The thrombolytic and pharmacokinetic properties as well as the hemostasis effects of BM 06.022 were investigated in the rabbit model of j...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1991-05-06 00:00:00
abstract::The use of warfarin with a range INR of 2.0-3.0 is recommended in prevention of stroke for nonvalvular atrial fibrillation (AF) patients, in particular those older than 75 years. The risk of bleeding that is associated with this range of INR has led to evaluate lower ranges (low-dose or fixed minidose) in terms of ris...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,meta分析
doi:10.1160/TH03-08-0541
更新日期:2004-02-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1055/s-0038-1676818
更新日期:2019-02-01 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,多中心研究
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1984-02-28 00:00:00
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journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH16-03-0248
更新日期:2016-09-27 00:00:00
abstract:OBJECTIVE:To assess the safety and efficacy of a fixed dose of recombinant activated factor VII (rFVIIa; NovoSeven) in the home setting for mild to moderately severe joint, muscle; and mucocutaneous bleeding episodes in patients with haemophilia A or B with inhibitors. DESIGN:Multicentre, open-label, single arm, phase...
journal_title:Thrombosis and haemostasis
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1998-12-01 00:00:00
abstract::Direct oral factor inhibitors (DOFIs) are an attractive alternative to vitamin K antagonists (VKA) for the treatment of patients with antiphospholipid syndrome (APS). In the absence of prospective, randomised trial data, reports of therapeutic failures in clinical practice alert clinicians to potential limitations of ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH14-03-0272
更新日期:2014-11-01 00:00:00
abstract::In order to determine the molecular size of human F VIII as found in fresh plasma and as found in fresh-frozen plasma and in cryoprecipitate and to study the relationship of the factor-related properties, namely F VIII:C, F VIIR:Rcof and F VIIIR:Ag to F VIII, the factor's elution pattern on Sephacryl 1000 was investig...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:1982-08-24 00:00:00
abstract::Vessel wall matrix changes occur after injury, although this has not been well studied in the venous system. This study tested the hypothesis that the thrombus dictates the vein wall response and vein wall damage is directly related to the duration of thrombus contact. To determine the injury response over time, rats ...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract::Atherosclerosis is a prevalent inflammatory condition and a frequent cause of morbidity and mortality worldwide. Macrophages are among the key immune cells driving lesion formation in the arterial wall. They have therefore evolved as potential targets for therapeutic strategies. Understanding of the different macropha...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章,评审
doi:10.1055/s-0039-1692665
更新日期:2019-08-01 00:00:00
abstract::Heparin and low-molecular-weight heparin (LMWH) are commonly monitored by determination of activated clotting times or chromogenic assays. Despite their wide use, these assays determine the biological activity and not the concentration of the anticoagulants. They may be inaccurate in some circumstances such as certain...
journal_title:Thrombosis and haemostasis
pub_type: 杂志文章
doi:10.1160/TH09-03-0168
更新日期:2009-11-01 00:00:00