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https://www.readbyqxmd.com/read/29240268/assessment-of-procoagulant-potential-in-patients-with-reactive-thrombocytosis-and-its-association-with-platelet-count
#1
Amihai Rottenstreich, Ela Shai, Geffen Kleinstern, Galia Spectre, David Varon, Yosef Kalish
OBJECTIVE: We aimed to determine hemostatic changes and characterize the procoagulant potential among reactive thrombocytosis (RT) patients. METHODS: Sixty RT patients (median platelet count 718X109 /L) and 20 healthy persons were tested for complete blood count, C-reactive protein, von Willebrand factor (VWF), factor VIII and fibrinogen, and thrombin generation. Platelet studies, including light transmission aggregometry and Cone and Plate(let) Analyzer, were also conducted...
December 14, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/29236548/budesonide-instillation-immediately-after-reperfusion-ameliorates-ischemia-reperfusion-induced-injury-in-the-transplanted-lung-of-rat
#2
Wei Gao, Qiu-Ming Meng, Xiao-Guang Cui
PURPOSE: Lung ischemia-reperfusion injury (LIRI) after lung transplantation can lead to primary graft dysfunction. Budesonide can improve endothelial function to reduce lung injury. This study was aimed to examine the effects of budesonide on LIRI and potential mechanisms. METHODS: Wistar rats were randomized and transplanted with syngeneic left lung or received the sham surgery. The recipients were instilled with saline or budesonide immediately after reperfusion...
December 13, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29235553/pro-inflammatory-gene-expression-profile-in-obese-adults-with-high-plasma-gip-levels
#3
J Góralska, U Raźny, A Polus, J Stancel-Możwiłło, M Chojnacka, A Gruca, A Zdzienicka, A Dembińska-Kieć, B Kieć-Wilk, B Solnica, M Malczewska-Malec
BACKGROUND: GIP provides a novel link between the immune system and the gut, although results from different experimental and observational studies are contradictory, ranging from anti-inflammatory, through neutral to pro-inflammatory action of GIP. Thus, the aim of this study was to analyze inflammatory pathways on the level of gene expression and circulating inflammatory markers in relation to plasma GIP level. SUBJECTS/METHODS: The study included 128 obese adults...
December 13, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29235231/influencing-factors-in-quantitative-measurement-using-activated-platelet-levels-and-platelet-activating-capacity-for-the-assessment-of-thrombosis-in-pre-metabolic-syndrome-and-type-2-diabetes-mellitus
#4
Kozue Okano, Kazuki Shitamoto, Minako Araki, Chie Kawamoto, Reo Kawano, Hiroshi Nogaki
Activated platelet levels and platelet-activating capacity are well recognized as useful index parameters for the physiological and pharmacological prediction of thrombotic events. Recently, quantitative measurements for platelet functions using a flow cytometer have been increasing gradually. However, the relation of physiological factors, such as sex, aging, and laboratory tests, to platelet functions has not been well documented. We conducted a blood analysis of people with normal/pre-metabolic syndrome and patients with type 2 diabetes mellitus to clarify the pathological factors...
December 12, 2017: Nursing & Health Sciences
https://www.readbyqxmd.com/read/29234351/space-and-time-resolved-detection-of-platelet-activation-and-von-willebrand-factor-conformational-changes-in-deep-suspensions
#5
Jacopo Biasetti, Kaushik Sampath, Angel Cortez, Alaleh Azhir, Assaf A Gilad, Thomas S Kickler, Tobias Obser, Zaverio M Ruggeri, Joseph Katz
Tracking cells and proteins' phenotypic changes in deep suspensions is critical for the direct imaging of blood-related phenomena in in vitro replica of cardiovascular systems and blood-handling devices. This paper introduces fluorescence imaging techniques for space and time resolved detection of platelet activation, von Willebrand factor (VWF) conformational changes, and VWF-platelet interaction in deep suspensions. Labeled VWF, platelets, and VWF-platelet strands are suspended in deep cuvettes, illuminated, and imaged with a high-sensitivity EM-CCD camera, allowing detection using an exposure time of 1 ms...
2017: International Journal of Biomedical Imaging
https://www.readbyqxmd.com/read/29233018/type-1-diabetic-patients-have-better-endothelial-function-after-simultaneous-pancreas-kidney-transplantation-than-after-kidney-transplantation-with-continued-insulin-therapy
#6
Jacek Ziaja, Adrian P Kowalik, Aureliusz Kolonko, Dorota Kamińska, Aleksander J Owczarek, Agata Kujawa-Szewieczek, Mariusz A Kusztal, Joanna Badura, Dominika Bożek-Pająk, Piotr Choręza, Agnieszka Zakrzewska, Robert Król, Stefan Chłopicki, Marian Klinger, Andrzej Więcek, Jerzy Chudek, Lech Cierpka
The purpose of this study was to analyse the influence of simultaneous pancreas-kidney or kidney transplantation on endothelial function and systemic inflammation in type 1 diabetic patients with end-stage renal disease. In 39 simultaneous pancreas-kidney, 39 type 1 diabetic kidney and 52 non-diabetic kidney recipients, flow-mediated dilatation was measured. Additionally, blood glycated haemoglobin, serum creatinine and lipids, plasma nitrites [Formula: see text] and nitrates, asymmetric dimethylarginine, soluble vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and E-selectin, high-sensitivity C-reactive protein, tumour necrosis factor-α, interleukin 1β and interleukin 6 concentrations were assessed...
December 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/29230616/elevated-inflammation-in-association-with-alcohol-abuse-among-blacks-but-not-whites-results-from-the-midus-biomarker-study
#7
Yusuf Ransome, Natalie Slopen, Oskar Karlsson, David R Williams
Some studies document racial disparities in self-reported health associated with alcohol use and abuse. However, few studies examined biomarkers that underlie the onset of alcohol-related chronic diseases. We investigated whether the association between alcohol abuse and five biomarkers of inflammation (CRP, IL-6, fibrinogen, E-selectin, sICAM-1) vary between Black and White Americans aged 35 to 84 (n = 1173) from the Midlife in the United States Biomarker Study. Multivariable Ordinary Least Squares regressions were used to assess Black-White differences in the association between alcohol abuse and the biomarkers...
December 11, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29222897/platelet-related-cytokines-among-normal-body-mass-index-overweight-and-obese-malaysians
#8
Nasrin Riyahi, Eusni Rahayu Mohd Tohit, Subashini C Thambiah, Zuriati Ibrahim
BACKGROUND AND OBJECTIVES: Recent studies have reported that obesity is associated with platelet activation and systemic inflammation. Malaysia has the highest prevalence of obesity, hence, this research is performed to evaluate the development of low-grade inflammation and platelet activation, measured using soluble CD40 ligand (sCD40L) and soluble P-selectin (sP-sel), and to determine their association with obesity. In addition, we assessed the mean platelet volume (MPV) and platelet count (PLT), which are novel parameters consistently associated with obesity...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29220362/optimized-plasma-preparation-is-essential-to-monitor-platelet-stored-molecules-in-humans
#9
Marion Mussbacher, Waltraud C Schrottmaier, Manuel Salzmann, Christine Brostjan, Johannes A Schmid, Patrick Starlinger, Alice Assinger
Platelets store a plethora of different molecules within their granules, modulating numerous pathways, not only in coagulation, but also in angiogenesis, wound healing, and inflammatory diseases. These molecules get rapidly released upon activation and therefore represent an easily accessible indirect marker for platelet activation. Accurate analysis of platelet-derived molecules in the plasma requires appropriate anticoagulation to avoid in vitro activation and subsequent degranulation of platelets, potentially causing artificially high levels and masking biologically relevant differences within translational research studies...
2017: PloS One
https://www.readbyqxmd.com/read/29219827/venous-thrombosis-and-coagulation-parameters-in-patients-with-pure-venous-malformations
#10
J van Es, N A Kappelhof, R A Douma, J C M Meijers, V E A Gerdes, C M A M van der Horst
INTRODUCTION: Venous malformations (VMs) are ubiquitous, low-flow vascular anomalies known to be occasionally painful due to thrombotic episodes within the lesion. The prevalence of superficial or deep vein thrombosis is unclear. METHODS: A cross-sectional study among outpatients aged ≥ 12 years with pure VMs was performed, quantifying the prevalence of thrombosis by screening all patients with compression ultrasonography (CUS). Additionally, we evaluated whether coagulation alterations were related to thrombosis observed with CUS...
October 2017: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/29218606/pi3k-is-a-linker-between-l-selectin-and-psgl-1-signaling-to-il-18-transcriptional-activation-at-the-promoter-level
#11
Jixian Luo
L-selectin and P-selectin glycoprotein ligand-1 (PSGL-1) are adhesion molecules which induce similar physiological events. Our previous paper showed that phosphatidylinositol 3-kinase (PI3K) played a crucial role in L-selectin- and PSGL-1-mediated F-actin redistribution and assembly during neutrophil rolling on E-selectin. However, it is not clear whether L-selectin and PSGL-1 induce other similar physiology events by PI3K. Here, we investigated the possibility of PI3K linking the signaling pathways of L-selectin and PSGL-1 to IL-18 transcription...
December 7, 2017: Inflammation
https://www.readbyqxmd.com/read/29216534/thrombolytic-therapy-based-on-fucoidan-functionalized-polymer-nanoparticles-targeting-p-selectin
#12
Maya Juenet, Rachida Aid-Launais, Bo Li, Alice Berger, Joël Aerts, Véronique Ollivier, Antonino Nicoletti, Didier Letourneur, Cédric Chauvierre
Injection of recombinant tissue plasminogen activator (rt-PA) is the standard drug treatment for thrombolysis. However, rt-PA shows risk of hemorrhages and limited efficiency even at high doses. Polysaccharide-poly(isobutylcyanoacrylate) nanoparticles functionalized with fucoidan and loaded with rt-PA were designed to accumulate on the thrombus. Fucoidan has a nanomolar affinity for the P-selectin expressed by activated platelets in the thrombus. Solid spherical fluorescent nanoparticles with a hydrodynamic diameter of 136 ± 4 nm were synthesized by redox radical emulsion polymerization...
November 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/29215956/effect-of-thrombopoietin-receptor-agonists-on-markers-of-coagulation-and-p-selectin-in-patients-with-immune-thrombocytopenia
#13
Lamya Garabet, Waleed Ghanima, Christine Monceyron Jonassen, Vibe Skov, René Holst, Marie-Christine Mowinckel, C Hasselbalc Hans, A Kruse Torben, Mads Thomassen, Howard Liebman, James B Bussel, Per Morten Sandset
Thrombopoietin-receptor-agonists (TPO-RA) are effective treatments of immune thrombocytopenia (ITP). Previous long-term TPO-RA clinical trials have shown that thrombotic events occurred in 6% of TPO-RA-treated ITP patients. To explore the increased risk of thrombosis, the effects of TPO-RA on markers of coagulation and P-selectin were studied. The study comprised two ITP cohorts and controls. Cohort 1 included 26 patients with sequential samples acquired before and during treatment with TPO-RA. Cohort 2 included a single sample in 18 patients on TPO-RA for more than one year...
December 7, 2017: Platelets
https://www.readbyqxmd.com/read/29215790/inhibition-of-fucosylation-in-human-invasive-ductal-carcinoma-reduces-e-selectin-ligand-expression-cell-proliferation-and-erk1-2-and-p38-mapk-activation
#14
M A Carrascal, M Silva, J S Ramalho, C Pen, M Martins, C Pascoal, C Amaral, I Serrano, M J Oliveira, R Sackstein, P A Videira
Breast cancer tissue overexpresses fucosylated glycans, such as sialyl-Lewis X/A (sLeX/A ), and α-1,3/4-fucosyltransferases in relation to increased disease progression and metastasis. These glycans in tumor circulating cells mediate binding to vascular E-selectin, initiating tumor extravasation. However, their role(s) in breast carcinogenesis is still unknown. Here, we aimed to define the contribution of the fucosylated structures, including sLeX/A , to cell adhesion, cell signaling and proliferation in invasive ductal carcinomas (IDC), the most frequent type of breast cancer...
December 7, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/29212955/myeloperoxidase-derived-2-chlorofatty-acids-contribute-to-human-sepsis-mortality-via-acute-respiratory-distress-syndrome
#15
Nuala J Meyer, John P Reilly, Rui Feng, Jason D Christie, Stanley L Hazen, Carolyn J Albert, Jacob D Franke, Celine L Hartman, Jane McHowat, David A Ford
Sepsis-associated acute respiratory distress syndrome (ARDS) is characterized by neutrophilic inflammation and poor survival. Since neutrophil myeloperoxidase (MPO) activity leads to increased plasma 2-chlorofatty acid (2-ClFA) levels, we hypothesized that plasma concentrations of 2-ClFAs would associate with ARDS and mortality in subjects with sepsis. In sequential consenting patients with sepsis, free 2-ClFA levels were significantly associated with ARDS, and with 30-day mortality, for each log increase in free 2-chlorostearic acid...
December 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/29211557/acoustophoretic-purification-of-platelets-feasibility-and-impact-on-platelet-activation-and-function
#16
Pierre Bohec, Jérémie Gachelin, Véronique Ollivier, Thibaut Mutin, Xavier Télot, Benoît Ho-Tin-Noé, Sandra Sanfilippo
Purity, limited platelet activation, and preservation of platelet function are important stakes of preparation of platelet concentrates (PC) for clinical use. In fact, contaminating red blood cells and leukocytes, as well as activated and/or poorly functional platelets in PC, represents a risk of poor efficiency and adverse side effects during platelet transfusion. Therefore, optimization of preparation and storage of PC is still an active field of research. Shear-induced platelet activation is an unwanted side effect of the hard-spin (up to 5000g) step of centrifugation-based methods currently used in blood banks to prepare PC from whole blood samples...
December 6, 2017: Platelets
https://www.readbyqxmd.com/read/29209148/human-colorectal-cancer-progression-correlates-with-lox-induced-ecm-stiffening
#17
Bo Wei, Xueling Zhou, Chenghua Liang, Xiaoming Zheng, Purun Lei, Jiafeng Fang, Xiaoyan Han, Lijing Wang, Cuiling Qi, Hongbo Wei
Some solid tumors are characterized by extracellular matrix (ECM) remodeling and stiffening, which is related to solid tumor progression and aggression. However, the relationship between ECM stiffness and colorectal cancer (CRC) remains unclear. In this study, we investigated the relevance of ECM stiffness to clinicopathologic features using human CRC tissue microarrays. The results demonstrate that the expression of ECM components in CRC tissues is closely correlated with CRC progression and poor prognosis, which indicates that ECM stiffness may be associated with CRC development...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29207652/iqca-tavv-to-explore-the-effect-of-p-selectin-gpiib-iiia-il-2-il-6-and-il-8-on-deep-venous-thrombosis
#18
Jianhui Wu, Haimei Zhu, Guodong Yang, Yuji Wang, Yaonan Wang, Shurui Zhao, Ming Zhao, Shiqi Peng
Deep vein thrombosis (DVT) associates with considerable morbidity, functional disability and mortality. Due to the lack of suitable inhibitor the correlation of various factors in DVT onset remains unknown. In this context we analyzed the structure of anti-platelet aggregation agent, P-selectin down-regulator, GPIIb/IIIa down-regulator and anti-inflammatory agent, thereby designed N-(3S-1,2,3,4-tetrahydroisoquinoline-3-carbonyl)- Thr-Ala-Arg-Gly-Asp(Val)-Val (IQCA-TAVV) as an inhibitor of DVT to receive evaluations...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207192/resveratrol-attenuates-hydrogen-peroxide%C3%A2-induced-apoptosis-reactive-oxygen-species-generation-and-psgl%C3%A2-1-and-vwf-activation-in-human-umbilical-vein-endothelial-cells-potentially-via-mapk-signalling-pathways
#19
Zhenkai Lou, Xingguo Li, Xueling Zhao, Kaili Du, Xing Li, Bing Wang
Reactive oxygen species (ROS) are implicated in the pathogenesis of thrombosis. Studies have reported that resveratrol exhibits antioxidative activities, however, the effect and underlying mechanisms of resveratrol on venous thrombosis remain largely unknown. To investigate the effect of resveratrol on venous thrombosis and the underlying mechanisms, the present study investigated the effects of resveratrol on cell viability, apoptosis, ROS generation and the expression of thrombosis‑associated markers in human umbilical vein endothelial cells (HUVECs)...
November 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29206177/new-therapeutic-agent-against-arterial-thrombosis-an-iridium-iii-derived-organometallic-compound
#20
Chih-Wei Hsia, Marappan Velusamy, Jeng-Ting Tsao, Chih-Hsuan Hsia, Duen-Suey Chou, Thanasekaran Jayakumar, Lin-Wen Lee, Jiun-Yi Li, Joen-Rong Sheu
Platelet activation plays a major role in cardio and cerebrovascular diseases, and cancer progression. Disruption of platelet activation represents an attractive therapeutic target for reducing the bidirectional cross talk between platelets and tumor cells. Platinum (Pt) compounds have been used for treating cancer. Hence, replacing Pt with iridium (Ir) is considered a potential alternative. We recently developed an Ir(III)-derived complex, [Ir(Cp*)1-(2-pyridyl)-3-(2-hydroxyphenyl)imidazo[1,5-a]pyridine Cl]BF₄ (Ir-11), which exhibited strong antiplatelet activity; hence, we assessed the therapeutic potential of Ir-11 against arterial thrombosis...
December 5, 2017: International Journal of Molecular Sciences
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