Abstract：
:Platelet concentrates (PC) were prepared by platelet apheresis to obtain a low (< 0.1 x 10(9)/l, PC A) and high (2-9 x 10(9)/l, PC B) concentration of white cells from the same donor. The mean platelet count (+/- SD) of the PC were 1000 +/- 50 x 10(9)/l. During storage 71-96% of the white cells were mononuclear. A portion of red cells from each donor was also stored under the same conditions. The results of the PC were corrected for the influence of contaminating erythrocytes. During the whole storage period pO2 was significantly lower in PC with high white cell count, p < 0.05 and the concentration of ATP significantly higher, p < 0.01 on day 0, 3 and 5, p < 0.05 on day 1 and 7. There were no significant differences in pH, pCO2, production of lactate or consumption of glucose. In another 17 apheresis PC leukocyte viability was assessed by exclusion of 0.05% trypan blue on days 5 and 7; 90 +/- 3 and 88 +/- 4% respectively of the leukocytes remained viable; 87 and 96% respectively were mononuclear cells. In a third series of PC prepared with extra high white cell count (0.4-1.6 x 10(9)/unit) was oxidative phosphorylation maintained and pH remained between 6.80 and 7.16 in 12 of 16 PC after 5 days of storage. The presence of mononuclear cells in PC does not impair the maintenance of platelet ATP production and oxidative phosphorylation unless the platelet concentration is high enough almost to exceed the oxygen diffusion capacity of the bag. If so, the white cells significantly contributed to the oxygen deficit and pH and ATP rapidly decreased due to anaerobic metabolism. We conclude that mononuclear cells can be stored in plasma together with platelets at aerobic conditions for 7 days with maintained concentration of platelet ATP.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Wallvik J,Suontaka AMdoi
10.1016/0049-3848(93)90132-8subject
Has Abstractpub_date
1993-05-01 00:00:00pages
255-64issue
3eissn
0049-3848issn
1879-2472pii
0049-3848(93)90132-8journal_volume
70pub_type
杂志文章abstract：INTRODUCTION:A close association exists between oral health and cardiovascular disease. Periodontal disease induces early vascular changes while oral pathogens have been detected in sub gingival and atheromatous plaques. We examined the interrelationship between Periodontal disease, oral bacteria, surrogate sub-clinica...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2013.04.023
更新日期：2013-07-01 00:00:00
abstract：INTRODUCTION:Remote ischaemic conditioning (RIC) has been shown to prevent platelet activation during ablation for atrial fibrillation. RIC has also been associated with more postoperative transfusion in the off-pump coronary artery bypass graft surgery (OPCAB) patients. We evaluated the effects of RIC on coagulation f...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2020.01.004
更新日期：2020-03-01 00:00:00
abstract：:The lupus ratio (LR) test is a normalized ratio of the clotting times obtained with low and high phospholipid (PL) concentrations, where the test plasma is mixed 1:1 with normal pooled plasma (NP). As an integrated, automated, and computer-assisted assay, this principle has been applied to the dilute activated partial...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(01)00420-0
更新日期：2002-01-15 00:00:00
abstract：:The antithrombotic effect of aspirin (ASA) and dipyridamole (DIP) was evaluated in rabbits in which platelet thromboxane A2 (TXA2) and arterial prostacyclin (PGI2) were measured. An intracarotid cannula thrombosis model previously shown to be sensitive to antiplatelet agents was used. Prostaglandins were determined by...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90224-4
更新日期：1983-05-15 00:00:00
abstract：INTRODUCTION:The TF-FVIIa complex is the primary activator of coagulation. Elevated levels of microvesicle (MV) bearing tissue factor (TF)-dependent procoagulant activity are detectable in patients with an increased risk of thrombosis. Several methods have been described to measure MV TF activity but they are hampered ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2019.07.011
更新日期：2019-10-01 00:00:00
abstract：BACKGROUND:The recanalization rate in patients with deep venous thrombosis (DVT) of the legs treated with the direct oral anticoagulants (DOAC) is unknown. METHODS:In an Italian cohort, we investigated the rate of residual vein thrombosis (RVT) after three and/or six months in 352 patients with proximal DVT who had be...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.03.022
更新日期：2017-05-01 00:00:00
abstract：:Patients who had survived a stroke or transient ischaemic attacks (TIA) were admitted to a trial of low-dose aspirin (50 mg) alone, sustained release dipyridamole (400 mg/day) alone, or a combination of the two agents, and results compared with a placebo over 24 months. This low-dose aspirin regimen produced in pairwi...
journal_title：Thrombosis research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0049-3848(98)00099-1
更新日期：1998-09-15 00:00:00
abstract：:The von Willebrand factor (vWF) is found in plasma and in platelets. The concentration and multimeric composition of the vWF in platelets of 160 patients with bleeding tendency were examined since very little is known about the platelet vWF. For quantitative analysis of the platelet vWF, a modified ELISA was establish...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(92)90212-s
更新日期：1992-03-01 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:To test the hypothesis that the platelet microparticle (PMP) and endothelial microparticle (EMP) may contribute to the hypercoagulability associated with microvascular thrombosis in patients with nontraumatc osteonecrosis of the femoral head (ONFH). MATERIALS AND METHODS:The study comprised 46 patients wh...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2008.04.001
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Statins have been shown to have a protective effect for venous thromboembolism (VTE) in the general population. This study sought to assess the association between statins and the risk for cancer-associated deep vein thrombosis (DVT) and pulmonary embolism (PE). METHODS:Patients with newly diagnosed cancer ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2017.08.001
更新日期：2017-10-01 00:00:00
abstract：:The concentration of tissue plasminogen activator (t-PA), plasminogen activator inhibitor 1 (PAI-1) and the complex of t-PA and PAI-1 (t-PA-PAI-1 complex) were measured using an enzyme immunoassay, where the first antibody was monoclonal antibody against PAI-1 and the second one was polyclonal anti-t-PA Fab' antibody....
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(89)90392-7
更新日期：1989-09-01 00:00:00
abstract：:In this study we examined in 100 patients testing positive for Helicobacter pylori infection whether successful eradication therapy with pantoprazole, clarithromycin, and metronidazole alters fibrinogen and other acute phase response markers. Of 100 patients, only 11 showed a fibrinogen level above 300 mg/dL. Successf...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/s0049-3848(99)00230-3
更新日期：2000-03-15 00:00:00
abstract：:The cerebral vascular supply is constructed to protect the cerebral hemispheres and brainstem from the consequences of blood flow cessation. Reversal of blood flow around local obstructions is a feature of the microvascular beds of the striatum and cerebral cortex. Cerebral capillaries of these beds consist of endothe...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(00)00218-8
更新日期：2000-05-01 00:00:00
abstract：:A new type of assay for heparins has been devised, in which the test material competes with 125I-labelled heparin for binding to protamine-Sepharose. The assay is very sensitive and will measure heparin concentrations down to 10 ng ml-1. It responds to both the degree of sulphation and the molecular weight of acidic p...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(82)90056-1
更新日期：1982-08-15 00:00:00
abstract：:We studied the stability of three markers of coagulation (prothrombin fragment 1 + 2 (F1 + 2), thrombin-antithrombin III complexes (TAT), and soluble fibrin (SF)) in stored frozen plasma, in addition to one marker of fibrinolysis (total fibrinogen degradation products and fibrin degradation products (TDP)). All marker...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(95)00242-1
更新日期：1996-01-15 00:00:00
abstract：:We have previously reported on a microassay based on human kininogens as cysteine proteinase inhibitors (CPIs), which could quantify partially purified kininogens from different biological fluids (J Pharmacol Meth 26, 113-124, 1991). In the present study we describe a functional method that, when assuming a 1:1 stoich...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(96)00073-4
更新日期：1996-05-01 00:00:00
abstract：:Disadvantages of current bleeding time methods include poor reproducibility, limited repeatability, and at times scar formation. We report a new, in vitro technique which circumvents these problems. Venous blood is collected in sodium citrate, stored capped in a siliconized tube at 37 degrees C until use, and made to ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(83)90011-7
更新日期：1983-07-01 00:00:00
abstract：:Understanding the intracellular events triggered by antiphospholipid (aPL) antibodies in platelets and endothelial cells (ECs) is important in designing new modalities of targeted therapies for the treatment of thrombosis in Antiphospholipid Syndrome (APS). A recent study showed a significant increase in the expressio...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2004.06.031
更新日期：2004-01-01 00:00:00
abstract：:In-vitro determinations of purified kallikrein on the one hand, of human plasma and whole blood prekallikrein on the other hand have been conducted with the S-2648 electrogenic substrate using the electroanalytical technique. Plasmatic evaluations have been checked photometrically for assessing the reliability of the ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(84)90195-6
更新日期：1984-12-15 00:00:00
abstract：:Blackfoot disease is a unique endemic and chronic progressive arteriosclerotic vascular disease in southwest area of Taiwan. In this study, we determined the plasma levels of tissue plasminogen activator (tPA), plasminogen activator inhibitor (PAI), urokinase plasminogen activator (uPA), and von Willebrand factor (vWF...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90188-t
更新日期：1993-11-01 00:00:00
abstract：:Two functional assays for protein C inhibitor (PCI) were evaluated in parallel for the same plasma samples. One assay is specific for active PCI and measures its ability to form complexes with activated protein C (APC) in the presence of heparin (España et al, Thromb Res 64, 309, 1991) (Method A). After incubation of ...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(93)90079-4
更新日期：1993-06-01 00:00:00
abstract：:Addition of two commercial luciferin-luciferase reagents caused marked inhibition of the aggregatory response of washed human platelets to thrombin, ADP, vasopressin and platelet-activating factor (PAF). Analysis of the effects of the individual components of one of these reagents revealed that Mg2+, and to a lesser e...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90053-2
更新日期：1985-04-15 00:00:00
abstract：:Platelet aggregate size was determined with a newly-developed platelet aggregometer, PA-100 (KOWA), which can quantitatively evaluate the size and number of platelet aggregates by means of the particle counting method based upon light scattering. Epinephrine-induced platelet aggregation consists of two phases, the for...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(96)00026-6
更新日期：1996-03-01 00:00:00
abstract：:Platelet alpha adrenoceptor status was examined using the radioligands 3H-yohimbine (3H-YOH) and 3H-dihydroergocryptine (3H-DHE) in 14 patients with myeloproliferative disorder (MPD) and 10 normal controls. Platelets from normal controls and MPD patients sensitive to adrenaline induced aggregation exhibited approximat...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(85)90300-7
更新日期：1985-12-01 00:00:00
abstract：BACKGROUND:Administrative data can be used to identify venous thromboembolism (VTE) and major bleeding (MB) events. However, the validity of this data in emergency room discharge records in Canada is unknown. METHODS:We conducted a single-institution retrospective chart re-abstraction study in London, Canada. We ident...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/j.thromres.2015.10.035
更新日期：2015-12-01 00:00:00
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：:Diagnosis and risk stratification of patients with acute coronary syndromes remain extremely important in order to avoid unnecessary hospitalizations on the one hand, and to improve prognosis of these patients on the other. For diagnosis of acute coronary syndromes, an ECG should be obtained at rest, troponin T and I ...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/s0049-3848(01)00298-5
更新日期：2001-09-30 00:00:00
abstract：:Factor Xa-catalyzed prothrombin activation occurs on cellular surfaces, including those of vascular endothelial cells. In a reconstituted model, endothelial cells and platelets acted synergistically to maximally activate prothrombin in the presence of Factor Xa. Synergism was observed at platelet concentrations less t...
journal_title：Thrombosis research
pub_type： 杂志文章
doi：10.1016/0049-3848(87)90168-x
更新日期：1987-01-15 00:00:00
abstract：:Platelets occupy a central role at the interface between thrombosis and inflammation. At sites of vascular damage, adherent platelets physically and functionally interact with circulating leukocytes. Activated platelets release soluble factors into circulation that may have local and systemic effects on blood and vasc...
journal_title：Thrombosis research
pub_type： 杂志文章,评审
doi：10.1016/j.thromres.2010.10.010
更新日期：2011-03-01 00:00:00
