Effect of altitude on thrombopoietin and the platelet count in healthy volunteers.

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 at between 1000 and 1822 m for 1 or 2 weeks on TPO, the platelet count (+ indices), erythropoietin, hemoglobin, hematocrit and erythrocytes (+ indices). There were significant post-exposure increases in TPO (57.9 vs 37.1 U/l; P=0.0006), platelet count (219.1 vs 208.0 x 10(3)/ml; P=0.031) and erythropoietin (16.1 vs 9.9 U/l; P=0.0032). There was a positive correlation between the increases in TPO and platelet count (r=0.52, P=0.043). Hemoglobin and hematocrit remained unchanged. Our results provide clear evidence for a relationship, presumably driven by hypoxia, between altitude exposure, TPO production and the platelet count.

journal_name

Thromb Haemost

authors

Hartmann S,Krafft A,Huch R,Breymann C

doi

10.1160/TH04-02-0086

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

115-7

issue

1

eissn

0340-6245

issn

2567-689X

pii

05010115

journal_volume

93

pub_type

杂志文章
  • A randomised, double blind comparison of tecarfarin, a novel vitamin K antagonist, with warfarin. The EmbraceAC Trial.

    abstract::Tecarfarin is a novel vitamin K antagonist that is metabolised by carboxyl estererase, thereby eliminating the variability associated with cytochrome-mediated metabolism. EmbraceAC was designed to compare the quality of anticoagulation with tecarfarin and warfarin as determined by time in therapeutic range (TTR). In t...

    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/TH15-11-0910

    authors: Whitlock RP,Fordyce CB,Midei MG,Ellis D,Garcia D,Weitz JI,Canafax DM,Albrecht D,Milner PG

    更新日期:2016-08-01 00:00:00

  • Age-and sex-specific seasonal variation of venous thromboembolism in patients with and without family history: a nationwide family study in Sweden.

    abstract::Seasonal variation in venous thromboembolism (VTE) risk in individuals with familial predisposition to VTE has not been explored. This nationwide study aimed to determine whether there are age- and sex-specific seasonal differences in risk of hospitalisation of VTE among individuals with and without a family history o...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH13-04-0320

    authors: Zöller B,Li X,Ohlsson H,Sundquist J,Sundquist K

    更新日期:2013-12-01 00:00:00

  • Lupus anticoagulant testing in Europe: an analysis of results from the first European Concerted Action on Thrombophilia (ECAT) survey using plasmas spiked with monoclonal antibodies against human beta2-glycoprotein I.

    abstract::Lupus anticoagulants (LA) are immunoglobulins directed to either prothrombin or Beta-2-glycoprotein 1(beta1GPI) bound to phospholipids. Most patients with LA have both beta2GPI- and prothrombin-dependent antibodies. Several recent reports have shown that LA is more strongly associated with thrombosis than anticardioli...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章,多中心研究

    doi:

    authors: Arnout J,Meijer P,Vermylen J

    更新日期:1999-06-01 00:00:00

  • The burden of inhibitors in haemophilia patients.

    abstract::The burden of disease in haemophilia patients has wide ranging implications for the family and to society. There is evidence that having a current inhibitor increases the risk of morbidity and mortality. Morbidity is increased by the inability to treat adequately and its consequent disabilities, which then equates to ...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH16-01-0049

    authors: Walsh CE,Jiménez-Yuste V,Auerswald G,Grancha S

    更新日期:2016-08-31 00:00:00

  • Clot accumulation characteristics of plasminogen-bearing liposomes in a flow-system. Groningen Utrecht Institute for Drug Exploration.

    abstract::In this study, the clot accumulation properties of liposome-coupled plasminogen were compared to those of free (non-liposomal) plasminogen in an in vitro, closed-loop, flow-system. After introduction of a clot into the closed system, double-radiolabelled plasminogen-liposomes were administered and the accumulation of ...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Heeremans JL,Prevost R,Feitsma H,Kluft C,Crommelin DJ

    更新日期:1998-01-01 00:00:00

  • Differing susceptibilities of platelets from normal individuals and patients with von Willebrand's disease to attack by quinine- and quinidine-dependent antiplatelet antibodies.

    abstract::Reactivity of quinine- and quinidine-dependent antiplatelet antibodies has been compared in platelet-rich-plasma (PRP) from normal donors and from patients with von Willebrand's disease (vWd). One quinine-dependent antibody (Q.Ab) caused platelet aggregation and [14C] serotonin release with only 7 of 12 normal donors,...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Pfueller SL,Bilston RA,Logan D,David R,Sloan IG,Firkin BG

    更新日期:1989-02-28 00:00:00

  • Mutation at either Arg336 or Arg562 in factor VIII is insufficient for complete resistance to activated protein C (APC)-mediated inactivation: implications for the APC resistance test.

    abstract::Activated protein C (APC)-mediated inactivation of factor VIII (FVIII) correlates with cleavage at either Arg336 and/or Arg562. To elucidate the APC cleavage requirements for inactivation of FVIII, APC cleavage site mutants in FVIII (R336I, R562K and R336I/R562K) were made by site-directed mutagenesis. Analysis of the...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Amano K,Michnick DA,Moussalli M,Kaufman RJ

    更新日期:1998-03-01 00:00:00

  • Contribution of the NH2-terminal EGF-domain of factor IXa to the specificity of intrinsic tenase.

    abstract::Factor IXa (FIXa) is a vitamin K-dependent coagulation serine protease which binds to factor VIIIa (FVIIIa) on negatively charged phospholipid vesicles (PCPS) to catalyse the activation of factor X (FX) to factor Xa (FXa) in the intrinsic pathway. Fluorescence resonance energy transfer (FRET) studies have indicated th...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH12-06-0436

    authors: Qureshi SH,Yang L,Rezaie AR

    更新日期:2012-12-01 00:00:00

  • Lymphocyte adhesion to human endothelial cells induces tissue factor expression via a juxtacrine pathway.

    abstract::To study the effect of lymphocyte adhesion on the procoagulant activity of endothelial cells, we have stimulated HUVECs with interferon-gamma to upregulate adhesion molecules. Subsequent addition of lymphocytes induced the expression of tissue factor (TF) by HUVECs. Both CD4+ and CD8+ T-cells promoted this TF synthesi...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Schmid E,Müller TH,Budzinski RM,Pfizenmaier K,Binder K

    更新日期:1995-03-01 00:00:00

  • European Concerted Action on Anticoagulation (ECAA)-the multicentre calibration of rabbit and human ECAA reference thromboplastins. Steering Committee.

    abstract::Two candidate ECAA reference preparations have been calibrated in a multicentre exercise at 14 representative national laboratories to provide reference thromboplastin for a large field study in 16 European countries. Two preparations were required because of the established differences in ISI arising from the two mai...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章,多中心研究

    doi:

    authors: Poller L,Barrowcliffe TW,van den Besselaar AM,Jespersen J,Tripodi A,Houghton D

    更新日期:1996-12-01 00:00:00

  • Venous thromboembolism in critically ill patients. Observations from a randomized trial in sepsis.

    abstract::Venous thromboembolism (VTE) is a central concern in the intensive care unit (ICU). However, little is known about both current practices for VTE prevention in the ICU and the risk for VTE in persons with severe sepsis and septic shock. XPRESS was a randomized, double-blind, placebo-controlled trial of prophylactic he...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章,随机对照试验

    doi:

    authors: Shorr AF,Williams MD

    更新日期:2009-01-01 00:00:00

  • Ultra-low-molecular-weight heparins: precise structural features impacting specific anticoagulant activities.

    abstract::Ultra-low-molecular-weight heparins (ULMWHs) with better efficacy and safety ratios are under development; however, there are few structural data available. The main structural features and molecular weight of ULMWHs were studied and compared to enoxaparin. Their monosaccharide composition and average molecular weight...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH12-11-0795

    authors: Lima MA,Viskov C,Herman F,Gray AL,de Farias EH,Cavalheiro RP,Sassaki GL,Hoppensteadt D,Fareed J,Nader HB

    更新日期:2013-03-01 00:00:00

  • Distribution of the recombinant coagulation factor 125I-rFVIIa in rats.

    abstract::Recombinant human factor VIIa (rFVIIa; NovoSeven) is a two-chain activated clotting factor that is used in the treatment of haemophilia. The distribution of radioactivity in male and pregnant and non-pregnant female rats has been examined by whole-body autoradiography (WBA) after single intravenous doses of 125I-radio...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Beeby TL,Chasseaud LF,Taylor T,Thomsen MK

    更新日期:1993-09-01 00:00:00

  • Participation of Hageman factor dependent pathways in human disease states.

    abstract::Abnormalities of Hageman factor dependent pathways have been described in a wide variety of human disease states. Congenital deficiencies of factor XII (Hageman trait) prekallikrein (Fletcher trait) and high molecular weight kininogen (Williams, Fitzgerald and Flaujeac traits) although resulting in profound in vitro c...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章,评审

    doi:

    authors: Colman RW,Wong PY

    更新日期:1977-12-15 00:00:00

  • Bleeding in uremic patients after carbenicillin.

    abstract::Hemorrhagic diathesis was observed in patients with renal insufficiency after carbenicillin at serum levels greater than 300 mug/ml. Normal coagulation factors (F. I, II, V, VII, VIII, X), normal PTT, normal platelet counts, negative ethanol gelation test (fibrin monomers) were found as well as a prolongation of throm...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Andrassy K,Weischedel E,Ritz E,Andrassy T

    更新日期:1976-08-31 00:00:00

  • The role of RNA uptake in platelet heterogeneity.

    abstract::The role of platelets in regulating vascular homeostasis has expanded beyond mediation of haemostasis and thrombosis. The discovery of platelet RNA and the presence of subpopulations of platelets containing varying amounts of RNA suggest a role for platelet transcripts in vascular function. As the RNA in anucleated pl...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH16-11-0873

    authors: Clancy L,Beaulieu LM,Tanriverdi K,Freedman JE

    更新日期:2017-05-03 00:00:00

  • PAK Membrane Translocation and Phosphorylation Regulate Platelet Aggregation Downstream of Gi and G12/13 Pathways.

    abstract::Platelet activation plays a pivotal role in physiological hemostasis and pathological thrombosis causing heart attack and stroke. Previous studies conclude that simultaneous activation of Gi and G12/13 signaling pathways is sufficient to cause platelet aggregation. However, using Gq knockout mice and Gq-specific inhib...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1055/s-0040-1714745

    authors: Zhang J,Zhang Y,Zheng S,Liu Y,Chang L,Pan G,Hu L,Zhang S,Liu J,Kim S,Dong J,Ding Z

    更新日期:2020-11-01 00:00:00

  • Global gene expression profiles in fibroblasts from synovial, skin and lymphoid tissue reveals distinct cytokine and chemokine expression patterns.

    abstract::We investigated the extent to which fibroblasts isolated from diverse tissues differ in their capacity to modulate inflammation by comparing the global gene expression profiles of cultured human fibroblasts from skin, acute and chronically inflamed synovium, lymph node and tonsil. The responses of these fibroblasts to...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH03-04-0208

    authors: Parsonage G,Falciani F,Burman A,Filer A,Ross E,Bofill M,Martin S,Salmon M,Buckley CD

    更新日期:2003-10-01 00:00:00

  • Edoxaban for treatment of venous thromboembolism in patients with cancer. Rationale and design of the Hokusai VTE-cancer study.

    abstract::Direct oral anticoagulants may be effective and safe for treatment of venous thromboembolism (VTE) in cancer patients, but they have not been compared with low-molecular-weight heparin (LMWH), the current recommended treatment for these patients. The Hokusai VTE-cancer study is a randomised, open-label, clinical trial...

    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/TH15-06-0452

    authors: van Es N,Di Nisio M,Bleker SM,Segers A,Mercuri MF,Schwocho L,Kakkar A,Weitz JI,Beyer-Westendorf J,Boda Z,Carrier M,Chlumsky J,Décousus H,Garcia D,Gibbs H,Kamphuisen PW,Monreal M,Ockelford P,Pabinger I,Verhamme P,G

    更新日期:2015-11-25 00:00:00

  • Prasugrel inhibits platelet-leukocyte interaction and reduces inflammatory markers in a model of endotoxic shock in the mouse.

    abstract::Prasugrel, through its active metabolite, reduces atherothrombosis and its clinical manifestations by inhibiting platelet activation and aggregation. Platelets also contribute to inflammation through interaction with different classes of leukocytes. We investigated whether the inhibitory effect of prasugrel on platele...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH11-12-0867

    authors: Totani L,Dell'Elba G,Martelli N,Di Santo A,Piccoli A,Amore C,Evangelista V

    更新日期:2012-06-01 00:00:00

  • Mass action effects on competitive adsorption of fibrinogen from hemoglobin solutions and from plasma.

    abstract::The strong effect of protein adsorption on blood and tissue compatibility is well known. Little is presently known about the mechanisms which control the composition of the adsorbed protein layer which forms upon exposure of surfaces to mixtures of proteins. Reexamination of the ability of hemoglobin to inhibit the ad...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Horbett TA

    更新日期:1984-04-30 00:00:00

  • Localization of the low-density lipoprotein receptor-related protein regions involved in binding to the A2 domain of coagulation factor VIII.

    abstract::Catabolism of coagulation factor VIII (FVIII) is mediated by low-density lipoprotein receptor-related protein (LRP). The ligand-binding sites of LRP are formed by complement-type repeats (CR), and CR clusters II and IV bind most of LRP ligands. FVIII contains two major LRP-binding sites located in the A2 and A3 domain...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Sarafanov AG,Makogonenko EM,Andersen OM,Mikhailenko IA,Ananyeva NM,Khrenov AV,Shima M,Strickland DK,Saenko EL

    更新日期:2007-12-01 00:00:00

  • Oxidative stress and platelet activation in subjects with moderate hyperhomocysteinaemia due to MTHFR 677 C→T polymorphism.

    abstract::The methylenetetrahydrofolate reductase (MTHFR) 677 C→T polymorphism may be associated with elevated total homocysteine (tHcy) levels, an independent risk factor for cardiovascular disease. It was the study objective to evaluate in vivo lipid peroxidation and platelet activation in carriers of the MTHFR 677 C→T polymo...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH11-12-0899

    authors: Dragani A,Falco A,Santilli F,Basili S,Rolandi G,Cerasa L,Lattanzio S,Ciabattoni G,Patrono C,Davì G

    更新日期:2012-09-01 00:00:00

  • Sequential treatment of arterial occlusions with porcine plasmin and low dose streptokinase.

    abstract::Sequential treatment of arterial occlusions of the leg with porcine plasmin and low dose streptokinase results in a strong systemic proteolysis as already seen in deep leg vein thrombosis. In 31 of 45 patients the blood flow through major arterial segments could be restored. Thrombolytic success is possible within the...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Marbet GA,Eichlisberger R,Duckert F,da Silva MA,Biland L,Widmer LK,Ritz R,Schmitt HE

    更新日期:1982-10-29 00:00:00

  • Tissue factor pathway inhibitor (TFPI) levels in the plasma and urine of children with meningococcal disease.

    abstract::Tissue factor pathway inhibitor (TFPI) is a potent inhibitor of the TF-dependent coagulation system. In meningococcal disease, up-regulation of tissue factor expression on blood monocytes and possibly on endothelial cells has the potential to trigger the activation of the TF-dependent pathway of coagulation. Intravasc...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Eling M,Stephens AC,Oragui EE,Rivers RP,Levin M

    更新日期:2001-02-01 00:00:00

  • Plasma D-dimer as a marker for postoperative deep venous thrombosis. A study after total hip or knee arthroplasty.

    abstract::Plasma levels of D-dimer have been found useful as a marker of deep venous thrombosis in those patients in whom thrombosis is suspected, but their usefulness in postoperative screening is less clear. We have investigated the relationship of D-dimer to deep venous thrombosis in 90 patients after total hip and knee arth...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Dunn ID,Hui AC,Triffitt PD,Crozier AE,Gregg PJ,Sinclair ME,Armstrong AL,Mitchell VE

    更新日期:1994-11-01 00:00:00

  • Anti-thrombotic effects of selective estrogen receptor modulator tamoxifen.

    abstract::Tamoxifen is a known anti-cancer drug and established estrogen receptor modulator. Few clinical studies have earlier implicated the drug in thrombotic complications attributable to lower anti-thrombin and protein S levels in plasma. However, action of tamoxifen on platelet signalling machinery has not been elucidated ...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:10.1160/TH11-03-0178

    authors: Nayak MK,Singh SK,Roy A,Prakash V,Kumar A,Dash D

    更新日期:2011-10-01 00:00:00

  • Impaired fibrinolytic capacity predisposes for recurrence of venous thrombosis.

    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:

    authors: Korninger C,Lechner K,Niessner H,Gössinger H,Kundi M

    更新日期:1984-10-31 00:00:00

  • Ultrastructural studies on the surface coat of human platelet aggregated by polylysine and dextran.

    abstract::Positively charged macromolecule, polylysine (mol. wt. 15,000; 23,000; 180,000) could induce the platelet aggregation in low concentration but high concentration was required in the case of neutral macromolecule, dextran (mol. wt. 40,000; 250,000; 2,000,000). The larger molecules of polylysine and dextran were more ef...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Taketomi Y,Kuramoto A

    更新日期:1978-08-31 00:00:00

  • A mutation in the protein S pseudogene is linked to protein S deficiency in a thrombophilic family.

    abstract::Probands from 15 unrelated families with hereditary protein S deficiency type I, that is having a plasma total protein S concentration fifty percent of normal, were screened for abnormalities in their protein S genes by Southern analysis. Two probands were found to have a deviating DNA pattern with the restriction enz...

    journal_title:Thrombosis and haemostasis

    pub_type: 杂志文章

    doi:

    authors: Ploos van Amstel HK,Reitsma PH,Hamulyák K,de Die-Smulders CE,Mannucci PM,Bertina RM

    更新日期:1989-11-24 00:00:00