Platelet activation at the onset of human endotoxemia is undetectable in vivo.

Abstract:

:Infection induces platelet activation and consumption, which leads to thrombocytopenia, enhances microvascular thrombosis, impairs microcirculation and eventually triggers disseminated intravascular coagulation (DIC). It is well characterized that endotoxemia results in a pro-inflammatory and pro-coagulatory state, which favors platelet activation. However the early, direct effects of endotoxemia on platelets have not been investigated so far. Therefore we aimed to determine the early effects of the endotoxin lipopolysaccharide (LPS) on platelet function in vivo. In a human endotoxemia model, 15 healthy volunteers were stimulated with LPS (2 ng/kg). Blood was drawn before, 10, 30 and 60 min after LPS challenge and platelet activation analyzed by flow cytometry (GPIIb/IIIa activation, surface CD62P and CD40L, intraplatelet reactive oxygen formation and platelet-leukocyte aggregates) and ELISA (sCD40L, sCD62P and CXCL4). In parallel, blood samples and platelets were spiked with LPS (50 pg/ml) in vitro and monitored over 60 min for the same platelet activation markers. In vitro platelet stimulation with LPS activated platelets independent of the presence of leukocytes and enhanced their adhesion to endothelial cells. In contrast, in vivo no increase in GPIIb/IIIa activation or surface expression of CD62P was observed. However, endotoxemia resulted in a significant drop in platelet count and elevated the plasma CXCL4 levels already 10 min after the LPS challenge. These data indicate that LPS rapidly activates platelets, leading to α-granule release and endothelial adhesion. This might explain the drop in platelet count observed at the onset of endotoxemia.

journal_name

Platelets

journal_title

Platelets

authors

Schrottmaier WC,Kral JB,Zeitlinger M,Salzmann M,Jilma B,Assinger A

doi

10.3109/09537104.2015.1119814

subject

Has Abstract

pub_date

2016-07-01 00:00:00

pages

479-83

issue

5

eissn

0953-7104

issn

1369-1635

journal_volume

27

pub_type

杂志文章
  • Comparison of the release of microRNAs and extracellular vesicles from platelets in response to different agonists.

    abstract::On activation platelets release microRNAs and extracellular vesicles (EV) into circulation. The release of EV from platelets has been shown to be dependent on the agonist; in this study, we investigated whether the microRNA profile or EV released from platelets was also agonist specific. Washed platelets from healthy ...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2017.1332366

    authors: Ambrose AR,Alsahli MA,Kurmani SA,Goodall AH

    更新日期:2018-07-01 00:00:00

  • Upper gastrointestinal haemorrhage complicating antiplatelet treatment with aspirin and/or clopidogrel: where we are now?

    abstract::A large number of patients require antiplatelet therapy (mainly aspirin and/or clopidogrel). Recent studies suggest that the combination of these agents is useful in patients with acute coronary syndrome and after percutaneous coronary intervention with stent placement. On the other hand, bleeding complications, most ...

    journal_title:Platelets

    pub_type: 杂志文章,评审

    doi:10.1080/09537100500237004

    authors: Liberopoulos EN,Elisaf MS,Tselepis AD,Archimandritis A,Kiskinis D,Cokkinos D,Mikhailidis DP

    更新日期:2006-02-01 00:00:00

  • The relationship between mean platelet volume with microalbuminuria and glycemic control in patients with type II diabetes mellitus.

    abstract::Microalbuminuria is the best predictor of diabetic nephropathy development in patients with type II diabetes mellitus (DM). It is also accepted as an indicator of diabetic microangiopathy. Increased activation of platelets has been suggested to be involved in the pathogenesis of vascular complications. In light of the...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537104.2011.634934

    authors: Ünübol M,Ayhan M,Güney E

    更新日期:2012-01-01 00:00:00

  • Release of Choline Metabolites from Human Platelets: Evidence for Activation of Phospholipase D and of Phosphatidylcholine-specific Phospholipase C.

    abstract::In aspirin-treated platelets labelled by preincubation with [(3)H]-choline, enhanced release of both [(3)H]-choline and [(3)H]-choline phosphate resulted from stimulation by collagen or thrombin. No such release accompanied stimulation by ADP, platelet-activating factor or adrenaline. Release of [(3)H]-choline phospha...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109309013192

    authors: Petty AC,Scrutton MC

    更新日期:1993-01-01 00:00:00

  • The Fluid-phase SC5b-9 Terminal Complement Complex Binds to the GPIIb/IIIa Complex of Thrombin-stimulated Human Blood Platelets Inhibiting Platelet Aggregation.

    abstract::We have investigated interactions between human blood platelets and the vitronectin-containing fluid-phase terminal complement complex, the SC5b-9, which is a non-cytolytic variant of the membrane attack complex C%9(m). SC5b-9 affinity for the platelet membrane glycoprotein IIb/IIIa (GPIIb/IIIa) complex was demonstrat...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109509013269

    authors: Røger M,Høgåsen K,Holme PA,Halstensen TS,Mollnes TE,Hovig T

    更新日期:1995-01-01 00:00:00

  • Two pathways for store-mediated calcium entry in human platelets.

    abstract::In human platelets and other non-excitable cell types depletion of the intracellular calcium stores promotes calcium entry across the plasma membrane. Although the mechanism of this store-mediated calcium entry remains uncertain, it has been suggested that a tyrosine phosphorylation step could be involved. In support ...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537100050057657

    authors: Jenner S,Sage SO

    更新日期:2000-06-01 00:00:00

  • Studies of biological functions in blood cells from individuals with large platelets.

    abstract::The present study was performed to explore differences in the expression of P-selectin and IL-8 production of blood cells in healthy individuals with large size platelets (MI-families) as compared to people having normal size platelets. A positive correlation between LPS-induced IL-8 production per platelet in whole b...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/02697450310001632597

    authors: Breimo ES,Østerud B

    更新日期:2003-11-01 00:00:00

  • Rapamycin and bafilomycin A1 alter autophagy and megakaryopoiesis.

    abstract::Autophagy is an effective strategy for cell development by recycling cytoplasmic constituents. Genetic deletion of autophagy mediator Atg7 in hematopoietic stem cells (HSCs) can lead to failure of megakaryopoiesis and enhanced autophagy has been implicated in various hematological disorders such as immune thrombocytop...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2016.1204436

    authors: Wang Q,You T,Fan H,Wang Y,Chu T,Poncz M,Zhu L

    更新日期:2017-01-01 00:00:00

  • Platelet aggregation in erythropoietin treated dialysis patients.

    abstract::Recombinant human erythropoietin is a successful treatment for the anaemia of renal failure. Its use has however been associated with thromboembolic complications. Changes in platelet number and behaviour in vitro were studied in: (1) 23 haemodialysis patients, and 10 continuous ambulatory peritoneal dialysis patients...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109209013168

    authors: Taylor JE,Henderson IS,Stewart WK,Belch JJ

    更新日期:1992-01-01 00:00:00

  • The cellular basis of platelet secretion: Emerging structure/function relationships.

    abstract::Platelet activation has long been known to be accompanied by secretion from at least three types of compartments. These include dense granules, the major source of small molecules; α-granules, the major protein storage organelle; and lysosomes, the site of acid hydrolase storage. Despite ~60 years of research, there a...

    journal_title:Platelets

    pub_type: 杂志文章,评审

    doi:10.1080/09537104.2016.1257786

    authors: Yadav S,Storrie B

    更新日期:2017-03-01 00:00:00

  • Distinct cholesterol and phospholipid incorporation at the platelet plasma membrane of hyperlipidemic subjects: structural order and function.

    abstract::Plasma lipid composition, platelet aggregation, cholesterol (Ch)/glycoprotein IIb-IIIa (GP) and phospholipid (Ph)/GP molar ratios, fatty acid composition and structural order (1, 6-diphenyl-1, 3, 5-hexatriene (DPH) fluorescence anisotropy at 35 degrees C (r(DPH,35)) of human platelet plasma membranes (HPPM) were measu...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537109876438

    authors: García-Guerra R,Mateo CR,García-Muñoz MS,Zapata MA,Plaza I,González-Rodríguez J

    更新日期:1998-01-01 00:00:00

  • Prostaglandin Regulation of Cyclic AMP Metabolism in Human Platelets.

    abstract::Prostaglandins stimulate cyclic AMP synthesis in platelets, leading to inhibition of platelet aggregation. Prostaglandin receptors have been identified but knowledge of their pharmacology is limited by the lack of antagonists. Kinetic measurements of prostaglandinregulated cyclic AMP formation provide useful informati...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109009009190

    authors: Ashby B

    更新日期:1990-01-01 00:00:00

  • Interactive protein network of FXIII-A1 in lipid rafts of activated and non-activated platelets.

    abstract::Lipid-rafts are defined as membrane microdomains enriched in cholesterol and glycosphingolipids within platelet plasma membrane. Lipid raft-mediated clot retraction requires factor XIII and other interacting proteins. The aim of this study was to investigate the proteins that interact with factor XIII in raft and non-...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537104.2016.1153621

    authors: Rabani V,Montange D,Davani S

    更新日期:2016-09-01 00:00:00

  • The use of platelet-rich plasma (PRP) in the treatment of gastrocnemius strains: a retrospective observational study.

    abstract::The aim of the present retrospective observational study was to evaluate the time of functional recovery following a specific combined therapeutic approach characterized by an active exercise therapy carried out immediately after Platelet-rich plasma (PRP) injections for the treatment of the muscular lesion of the dis...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2017.1349307

    authors: Borrione P,Fossati C,Pereira MT,Giannini S,Davico M,Minganti C,Pigozzi F

    更新日期:2018-09-01 00:00:00

  • GPVI modulation during platelet activation and storage: its expression levels and ectodomain shedding compared to markers of platelet storage lesion.

    abstract::Platelet storage is associated with deleterious changes leading to the loss of platelet reactivity and response. During storage, platelets experience increased expression and shedding of P-selectin and CD40L as specific markers of platelet activation, whereas GPIbα decreases due to ectodomain shedding. As an important...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2016.1235692

    authors: Hosseini E,Ghasemzadeh M,Nassaji F,Jamaat ZP

    更新日期:2017-07-01 00:00:00

  • An unusual presentation of gestational thrombocytopenia.

    abstract::Thrombocytopenia is classically defined as a platelet count of less than 150 000/µl. Counts from 100 000 to 150 000/µl are considered mildly depressed, 50 000 to 100 000/µl moderately depressed, and less than 50 000/µl severely depressed. Thrombocytopenia occurs in about 10% of pregnant women. Gestational thrombocytop...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537104.2012.724484

    authors: Lim CC,Patel DK,Bakhtiari A,Subrayan V

    更新日期:2013-01-01 00:00:00

  • The association of P2Y12 inhibitors with pro-coagulatory extracellular vesicles and microRNAs in stable coronary artery disease.

    abstract::Extracellular vesicles (EV) act as a cellular communication tool by carrying lipids, proteins and micro RNA (miR) between cells, thereby playing a pivotal role in thromboembolic processes. The effect of P2Y12 inhibitors on pro-coagulatory, phosphatidylserine (PS)-expressing EV has been investigated previously, but onl...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2019.1648780

    authors: Haller PM,Stojkovic S,Piackova E,Andric T,Wisgrill L,Spittler A,Wojta J,Huber K,Jäger B

    更新日期:2020-05-18 00:00:00

  • Rapid isolation and purification of functional platelet mitochondria using a discontinuous Percoll gradient.

    abstract::The isolation of mitochondria is gaining importance in experimental and clinical laboratory settings. The mitochondrion is known as the powerhouse of the cell as it produces the energy to power most cellular functions but is also involved in many cellular processes. Of interest, mitochondria and mitochondrial componen...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2019.1609666

    authors: Léger JL,Jougleux JL,Savadogo F,Pichaud N,Boudreau LH

    更新日期:2020-01-01 00:00:00

  • Mean platelet volume/platelet count ratio as a predictor of long-term mortality after non-ST-elevation myocardial infarction.

    abstract::Previous studies reported an association between elevated mean platelet volume (MPV) and post-myocardial infarction mortality. This study explores the association between long-term mortality after non-ST-segment elevation myocardial infarction (NSTEMI) and the peripheral blood platelet indices (i.e., the mean platelet...

    journal_title:Platelets

    pub_type: 杂志文章,评审

    doi:10.3109/09537104.2011.584086

    authors: Azab B,Torbey E,Singh J,Akerman M,Khoueiry G,McGinn JT,Widmann WD,Lafferty J

    更新日期:2011-01-01 00:00:00

  • A new variant of Glanzmann's thrombasthenia with defective activation-dependent fibrinogen binding and altered expression of epitopes for several monoclonal antibodies against GP IIb-IIIa.

    abstract::In a family, a moderate bleeding disorder in two patients has been specified as Glanzmann's thrombasthenia because of characteristic defects in platelet function. Analysis of platelet membrane glycoproteins revealed about a 50% decrease in the amount of GP IIb-IIIa complex (α(11b)β(3) integrin), which appeared normal ...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109609023581

    authors: Meyer M,Thieme A,Jablonka B,Just M,Ströhl C,Schellenberg I,Kirchmaier CM

    更新日期:1996-01-01 00:00:00

  • Efficacy and safety of eltrombopag in Chinese patients with chronic immune thrombocytopenia: stage 2 results from a multicenter phase III study.

    abstract::This phase III, randomized, placebo-controlled study conducted in three stages (6-week, randomized, placebo-controlled stage 1; 24-week, open-label stage 2; and continuous extension stage 3) assessed the long-term efficacy and safety of eltrombopag use in Chinese patients with chronic immune thrombocytopenia (ITP). Th...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2020.1847267

    authors: Liu X,Hou M,Li J,Jin J,Huang M,Yu Z,Xu X,Zhang X,Yang R

    更新日期:2020-11-29 00:00:00

  • Ticlopidine does not reduce in vivo platelet thromboxane biosynthesis and metabolism in diabetic patients.

    abstract::Diabetic patients are at higher risk of development of cardiovascular complications than the general population. The role of platelets in the pathogenesis of these complications is still controversial, it being difficult to ascertain whether altered platelet function is a cause or consequence of vascular complications...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537109309013203

    authors: Rotondo S,Cerletti C,Gaetano G,Tascione E

    更新日期:1993-01-01 00:00:00

  • The H(1)-histamine antagonist dithiaden inhibits human platelet function in vitro.

    abstract::The H(1)-histamine receptor antagonist Dithaden(R) inhibited in a dose-dependent manner, human platelet aggregation in vitro that was induced with stimuli in the following rank order of potency: thrombin > A23187 > adrenaline > ADP. The aggregation of platelets in plasma induced with adrenaline was inhibited by Dithia...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537109709169334

    authors: Nosál' R,Jancinová V,Danihelova E

    更新日期:1997-01-01 00:00:00

  • Prediction of bleeding and prophylactic platelet transfusions in cancer patients with thrombocytopenia.

    abstract::Studies on markers for bleeding risk among thrombocytopenic cancer patients are lacking. This prospective observational cohort study investigated whether platelet parameters and a standardised bleeding questionnaire predicted bleeding or prophylactic platelet transfusions in patients with cancer and thrombocytopenia. ...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537104.2015.1131814

    authors: Vinholt PJ,Alnor A,Nybo M,Hvas AM

    更新日期:2016-09-01 00:00:00

  • Efficacy and safety of switching from ticagrelor to clopidogrel during the early and late phase in acute coronary syndrome patients after percutaneous coronary intervention.

    abstract::In patients with acute coronary syndrome (ACS), treatment using ticagrelor demonstrated significant ischemic benefits over clopidogrel; however, it was associated with increased bleeding complications leading to frequent de-escalation to clopidogrel. The objective of the present study was to investigate the efficacy a...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2019.1609668

    authors: Wang C,Zheng W,Shaqdan A,Wang C,Qin X,Zhao X,Wang X,Yuan L,Nie S,Liu R

    更新日期:2020-01-01 00:00:00

  • Gray Platelet Syndrome in a Somalian family.

    abstract::The Gray Platelet Syndrome (GPS) is a rare inherited, hypogranular platelet disorder characterized by virtual absence of alpha granules in bone marrow megakaryocytes and circulating plates. Usually only one member of a family is affected, but families with two or more affected individuals have been reported from Franc...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537100600758636

    authors: White JG,Kumar A,Hogan MJ

    更新日期:2006-12-01 00:00:00

  • Evaluating platelet function disorders in children with bleeding tendency - A single center study.

    abstract::Platelet function disorders (PFDs) are a common cause of mild bleeding tendency. However, they cannot be recognized by standard screening studies. The gold standard test for PFD is platelet aggregation, performed by light transmission aggregometry (LTA). A newer and less validated method is the closure time (CT), perf...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.1080/09537104.2016.1257784

    authors: Tanous O,Steinberg Shemer O,Yacobovich J,Zoldan M,Horovitz Y,Yaniv I,Rabizadeh E,Tamary H,Nakav S,Lahav J

    更新日期:2017-11-01 00:00:00

  • Impaired responsiveness to clopidogrel and aspirin in patients with recurrent stent thrombosis following percutaneous intervention for peripheral artery disease.

    abstract::Patients with peripheral artery disease (PAD) following peripheral percutaneous transluminal angioplasty (PTA) with stent implantation are prone to stent thrombosis despite treatment with aspirin and clopidogrel. Impaired clopidogrel responsiveness is associated with increased risk of ischemic events in patients follo...

    journal_title:Platelets

    pub_type: 杂志文章

    doi:10.3109/09537104.2012.676220

    authors: Mazur P,Frołow M,Niżankowski R,Sadowski J,Undas A

    更新日期:2013-01-01 00:00:00

  • Thrombopoietin following transfusion of platelets in preterm neonates.

    abstract::Thrombocytopenia is common in the neonatal intensive care unit. Transfusion of platelets is often required. The purpose of our study was to determine changes in thrombopoietin (Tpo) following transfusion of platelets in preterm neonates. Preterm neonates undergoing platelet transfusion were randomized to receive a tra...

    journal_title:Platelets

    pub_type: 杂志文章,随机对照试验

    doi:10.1080/09537100802220476

    authors: Kline A,Mackley A,Taylor SM,McKenzie SE,Paul DA

    更新日期:2008-09-01 00:00:00

  • Platelet reactivity and nonresponse to dual antiplatelet therapy: a review.

    abstract::Clopidogrel is a second-generation thienopyridine that irreversibly inhibits the P2Y(12) adenosine diphosphate (ADP) receptor on platelets, preventing platelet aggregation. As early as 2003, researchers have observed inter-patient variability in response to clopidogrel, leading to a multitude of studies investigating ...

    journal_title:Platelets

    pub_type: 杂志文章,评审

    doi:10.3109/09537100903261379

    authors: Vila PM,Zafar MU,Badimon JJ

    更新日期:2009-12-01 00:00:00