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Coagulation pathways

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https://www.readbyqxmd.com/read/29331744/urinary-metabolomics-study-the-mechanism-of-taohong-siwu-decoction-intervention-in-acute-blood-stasis-model-rats-based-on-liquid-chromatography-coupled-to-quadrupole-time-of-flight-mass-spectrometry
#1
Xiaosong Zhang, Pengling Li, Yongli Hua, Peng Ji, Wanling Yao, Qi Ma, Ziwen Yuan, Yanqiao Wen, Chaoxue Yang, Yanming Wei
Taohong Siwu Decoction (TSD) is a classic prescription in traditional Chinese medicine and is widely used to promote blood circulation to remove blood stasis. However, the effect mechanisms are not yet well understood. Here, a urinary metabolomic approach based on liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (LC/Q-TOF-MS) was conducted to explore the changes in the endogenous metabolites and to assess the integral efficacy of TSD on acute blood stasis model rats. Then, parameters for hemorheology and coagulation functions were detected...
January 2, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29324883/masp-1-of-the-complement-system-enhances-clot-formation-in-a-microvascular-whole-blood-flow-model
#2
Lorenz Jenny, József Dobó, Péter Gál, Gábor Pál, Wilbur A Lam, Verena Schroeder
The complement and coagulation systems closely interact with each other. These interactions are believed to contribute to the proinflammatory and prothrombotic environment involved in the development of thrombotic complications in many diseases. Complement MASP-1 (mannan-binding lectin-associated serine protease-1) activates coagulation factors and promotes clot formation. However, this was mainly shown in purified or plasma-based static systems. Here we describe the role of MASP-1 and complement activation in fibrin clot formation in a microvascular, whole blood flow model...
2018: PloS One
https://www.readbyqxmd.com/read/29321808/itraq-based-proteomic-analysis-to-identify-the-molecular-mechanism-of-zhibai-dihuang-granule-in-the-yin-deficiency-heat-syndrome-rats
#3
Chang-Ming Liu, Jing Chen, Su Yang, Ting-Ting Jiang, Zhong-Liang Chen, Hui-Hui Tu, Lian-Gen Mao, Yu-Ting Hu, Lin Gan, Zhong-Jie Li, Ji-Cheng Li
Background: Zhibai Dihuang Granule (ZDG) is a traditional Chinese medicine which has been used to treat Yin-deficiency-heat (YDH) syndrome for thousands of years in China. However, little work has been conducted to explore the molecular mechanism of ZDG in YDH syndrome, and the processes of YDH syndrome prevention and treatment have been developed slowly. The present study was aimed to explore the therapeutic mechanism of ZDG on YDH syndrome. Methods: The YDH syndrome rats were induced by hot Chinese herbs, then treated by ZDG orally for 1 week...
2018: Chinese Medicine
https://www.readbyqxmd.com/read/29320303/time-of-day-and-short-duration-high-intensity-exercise-influences-on-coagulation-and-fibrinolysis
#4
Emma Kate Zadow, Cecilia Marie Kitic, Sam Shi Xuan Wu, James William Fell, Murray John Adams
Exercise has been demonstrated to have considerable effects upon haemostasis, with activation dependent upon the duration and intensity of the exercise bout. In addition, markers of coagulation and fibrinolysis have been shown to possess circadian rhythms, peaking within the morning (0600-1200 h). Therefore, the time of day in which exercise is performed may influence the activation of the coagulation and fibrinolytic systems. This study aimed to examine coagulation and fibrinolytic responses to short-duration high-intensity exercise when completed at different times of the day...
January 10, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29317453/targeting-anticoagulant-protein-s-to-improve-hemostasis-in-hemophilia
#5
Raja Prince, Luca Bologna, Mirko Manetti, Daniela Melchiorre, Irene Rosa, Natacha Dewarrat, Silvia Suardi, Poorya Amini, José A Fernández, Laurent Burnier, Claudia Quarroz, Maria Desiré Reina Caro, Yasuhiro Matsumura, Johanna A Kremer Hovinga, John H Griffin, Hans-Uwe Simon, Lidia Ibba-Manneschi, François Saller, Sara Calzavarini, Anne Angelillo-Scherrer
Improved treatments are needed for hemophilia A and B, bleeding disorders affecting 400,000 people worldwide. We investigated whether targeting protein S could promote hemostasis in hemophilia by re-balancing coagulation. Protein S is an anticoagulant acting as cofactor for activated protein C and tissue factor pathway inhibitor (TFPI). This dual role makes PS a key regulator of thrombin generation. Here, we report that targeting protein S rebalances coagulation in hemophilia. Protein S gene targeting in hemophilic mice protected them against bleeding, especially when intra-articular...
January 9, 2018: Blood
https://www.readbyqxmd.com/read/29316215/oxidized-low-density-lipoprotein-in-inflammation-driven-thrombosis
#6
Georg Obermayer, Taras Afonyushkin, Christoph J Binder
Thrombosis is the defining feature of the most prevalent causes of cardiovascular mortality, such as myocardial infarction, stroke and pulmonary artery embolism. While platelet activation as well as activation of the plasmatic coagulation system are the hallmarks of thrombus formation, inflammatory processes and the cellular responses involved are increasingly recognized as critical modulators of thrombosis. In the context of many chronic inflammatory diseases that are associated with a high thrombotic risk, oxidized lipoproteins represent a prominent sterile trigger of inflammation...
January 6, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29305999/high-fat-diet-induced-obesityexacerbateshematopoiesis-deficiency-and-cytopenia-caused-by-5-fluorouracil-via-ppar-%C3%AE
#7
Yanhong Li, Shuai Zhu, Yuanyuan Zhang, Ting Liu, Linchong Su, Qiuping Zhang, Yubin Luo
The present study aims to investigate the influence of high fat diet (HFD) on hematopoietic system recovery under stress condition caused by 5-Fluouracil (5-Fu) and evaluate the alleviating benefit of PPAR-γ inhibition on aggravation of 5-Fu-induced toxicity under HFD condition. Survival rate of HFD or normal diet (ND) mice was monitored after 5-Fu injection. HSC and the progenitor cells in bone marrow were detected at various time points after 5-Fu administration by flow cytometry. Genes expression involved in stem cell and platelet proliferation were tested by RT-PCR...
January 3, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29301345/eicosanoid-diversity-of-stony-corals
#8
Helike Lõhelaid, Nigulas Samel
Oxylipins are well-established lipid mediators in plants and animals. In mammals, arachidonic acid (AA)-derived eicosanoids control inflammation, fever, blood coagulation, pain perception and labor, and, accordingly, are used as drugs, while lipoxygenases (LOX), as well as cyclooxygenases (COX) serve as therapeutic targets for drug development. In soft corals, eicosanoids are synthesized on demand from AA by LOX, COX, and catalase-related allene oxide synthase-lipoxygenase (cAOS-LOX) and hydroperoxide lyase-lipoxygenase (cHPL-LOX) fusion proteins...
January 3, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29298690/ambient-air-pollution-and-thrombosis
#9
REVIEW
Sarah Robertson, Mark R Miller
Air pollution is a growing public health concern of global significance. Acute and chronic exposure is known to impair cardiovascular function, exacerbate disease and increase cardiovascular mortality. Several plausible biological mechanisms have been proposed for these associations, however, at present, the pathways are incomplete. A seminal review by the American Heart Association (2010) concluded that the thrombotic effects of particulate air pollution likely contributed to their effects on cardiovascular mortality and morbidity...
January 3, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29296264/relative-expression-of-pbmc-microrna-133a-analysis-in-patients-receiving-warfarin-after-mechanical-heart-valve-replacement
#10
Hamid Kabiri Rad, Mahta Mazaheri, Ali Dehghani Firozabadi
Background: MicroRNAs (miRNAs) are implicated in various biological processes including anticoagulation. However, the modulation of miRNA by pharmacological intervention such as warfarin treatment in patients receiving warfarin has not been disclosed yet. The aim of this study work was to assess the effect of warfarin drug on expression level of mir-133a-3p in patients with mechanical heart valve replacement. Methods: In this research, the expression level of miRNA-133a-3p was analyzed in Peripheral Blood Mononuclear Cells (PBMCs) from mechanical valve replacement patients who had received warfarin for at least 3 months continuously...
January 2018: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/29291252/tfpi%C3%AE-interacts-with-fva-and-fxa-to-inhibit-prothrombinase-during-the-initiation-of-coagulation
#11
Jeremy P Wood, Helle H Petersen, Bingke Yu, Xiaoai Wu, Ida Hilden, Alan E Mast
Tissue factor pathway inhibitor α (TFPIα) inhibits prothrombinase, the thrombin-generating complex of factor Xa (FXa) and factor Va (FVa), during the initiation of coagulation. This inhibition requires binding of a conserved basic region within TFPIα to a conserved acidic region in FXa-activated and platelet-released FVa. In this study, the contribution of interactions between TFPIα and the FXa active site and FVa heavy chain to prothrombinase inhibition were examined to further define the inhibitory biochemistry...
December 26, 2017: Blood Advances
https://www.readbyqxmd.com/read/29286309/lowering-low-density-lipoprotein-particles-in-plasma-using-dextran-sulphate-co-precipitates-procoagulant-extracellular-vesicles
#12
Jiong-Wei Wang, Ya-Nan Zhang, Siu Kwan Sze, Sander M van de Weg, Flora Vernooij, Arjan H Schoneveld, Sock-Hwee Tan, Henri H Versteeg, Leo Timmers, Carolyn S P Lam, Dominique P V de Kleijn
Plasma extracellular vesicles (EVs) are lipid membrane vesicles involved in several biological processes including coagulation. Both coagulation and lipid metabolism are strongly associated with cardiovascular events. Lowering very-low- and low-density lipoprotein ((V)LDL) particles via dextran sulphate LDL apheresis also removes coagulation proteins. It remains unknown, however, how coagulation proteins are removed in apheresis. We hypothesize that plasma EVs that contain high levels of coagulation proteins are concomitantly removed with (V)LDL particles by dextran sulphate apheresis...
December 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29286075/genome-expression-profiling-predicts-the-molecular-mechanism-of-peripheral-myelination
#13
Xiaoming Wu
The present study aimed to explore the molecular mechanism of myelination in the peripheral nervous system (PNS) based on genome expression profiles. Microarray data (GSE60345) was acquired from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were integrated and subsequently subjected to pathway and term enrichment analysis. A protein‑protein interaction network was constructed and the top 200 DEGs according to their degree value were further subjected to pathway enrichment analysis...
December 22, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29283291/structural-insights-into-humanization-of-anti-tissue-factor-antibody-10h10
#14
Alexey Teplyakov, Galina Obmolova, Thomas J Malia, Gopalan Raghunathan, Christian Martinez, Johan Fransson, Wilson Edwards, Judith Connor, Matthew Husovsky, Heena Beck, Ellen Chi, Sandra Fenton, Hong Zhou, Juan Carlos Almagro, Gary L Gilliland
Murine antibody 10H10 raised against human tissue factor is unique in that it blocks the signaling pathway, and thus inhibits angiogenesis and tumor growth without interfering with coagulation. As a potential therapeutic, the antibody was humanized in a two-step procedure. Antigen-binding loops were grafted onto selected human frameworks and the resulting chimeric antibody was subjected to affinity maturation by using phage display libraries. The results of humanization were analyzed from the structural perspective through comparison of the structure of a humanized variant with the parental mouse antibody...
December 28, 2017: MAbs
https://www.readbyqxmd.com/read/29280103/distribution-of-perfluorinated-compounds-in-drinking-water-treatment-plant-and-reductive-degradation-by-uv-so32-process
#15
Min Sun, Hao Zhou, Bei Xu, Junxin Bao
Perfluorinated compounds (PFCs), which are widely used in industrial and residential areas, have a large negative impact on the environment. This study investigated the removal efficiency of five PFCs in a drinking water treatment plant. The results indicate that the total PFC concentration in raw water is 261.51 ng L-1 and that perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are the predominant pollutants. Among all of the treatment processes, coagulation sedimentation process had the highest removal ratio of PFCs (36...
December 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29276283/bivalirudin-medication-use-evaluation-and-cost-savings-initiative
#16
Adam C Sieg, Jennifer A Gass
Bivalirudin is a parenteral anticoagulant that elicits its effect through inhibition of both free and clot bound-thrombin. Inhibition of thrombin serves as a unique mechanism for anticoagulation when compared to heparin as thrombin serves as the final common pathway for the intrinsic and extrinsic coagulation cascades. Due to unclear benefit over heparin, concerns regarding reversibility, and most importantly cost its use as a parenteral anticoagulant varies by institution. A recent drug expenditure review within our institution noted a significant increase in the contribution bivalirudin had on the overall drug budget...
September 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/29274910/disruption-of-liver-development-and-coagulation-pathway-by-ochratoxin-a-in-embryonic-zebrafish
#17
Ting-Shuan Wu, Yu-Ting Lin, Ying-Tzu Huang, Ya-Chih Cheng, Feng-Yih Yu, Biing-Hui Liu
Ochratoxin A (OTA) is a mycotoxin that is found in various food and feed products. The molecular mechanisms that are associated with OTA hepatotoxicity and teratogenicity have not been extensively elucidated in a developing organism. In this study, the transcriptomic profile of zebrafish embryos indicates that hemostasis and blood coagulation are the top two pathways affected by OTA. The treatment of embryos with OTA was able to decrease the expression of genes that encode coagulation factors and liver markers, including f7, f9b, cp and vtna...
December 21, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29273917/recent-advances-in-the-pathogenetic-mechanisms-of-sepsis-associated-acute-kidney-injury
#18
REVIEW
Filippo Fani, Giuseppe Regolisti, Marco Delsante, Vincenzo Cantaluppi, Giuseppe Castellano, Loreto Gesualdo, Gianluca Villa, Enrico Fiaccadori
Sepsis is a serious medical condition that can lead to multi-organ failure and shock, and it is associated with increased mortality. Acute kidney injury (AKI) is a frequent complication of sepsis in critically ill patients, and often requires renal replacement therapy. The pathophysiology of AKI in sepsis has not yet been fully defined. In the past, classic theories were mainly focused on systemic hemodynamic derangements, underscoring the key role of whole kidney hypoperfusion due to reduced renal blood flow...
December 23, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29258768/role-of-mir-1-expression-in-clear-cell-renal-cell-carcinoma-ccrcc-a-bioinformatics-study-based-on-geo-arrayexpress-microarrays-and-tcga-database
#19
Hai-Biao Yan, Jia-Cheng Huang, You-Rong Chen, Jian-Ni Yao, Wei-Ning Cen, Jia-Yi Li, Yi-Fan Jiang, Gang Chen, Sheng-Hua Li
PURPOSE: To investigate the clinical value and potential molecular mechanisms of miR-1 in clear cell renal cell carcinoma (ccRCC). METHODS: We searched the Gene Expression Omnibus (GEO), ArrayExpress, several online publication databases and the Cancer Genome Atlas (TCGA). Continuous variable meta-analysis and diagnostic meta-analysis were conducted, both in Stata 14, to show the expression of miR-1 in ccRCC. Furthermore, we acquired the potential targets of miR-1 from datasets that transfected miR-1 into ccRCC cells, online prediction databases, differentially expressed genes from TCGA and literature...
December 2, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29246902/identification-of-the-coagulation-factor-viia-integrin-binding-site-required-for-pro-angiogenic-par2-signaling
#20
Andrea S Rothmeier, Enbo Liu, Sagarika Chakrabarty, Jennifer Disse, Barbara M Mueller, Henrik Østergaard, Wolfram Ruf
The tissue factor (TF) pathway serves both hemostasis and cell signaling, but how cells control these divergent functions of TF remains incompletely understood. TF is the receptor and scaffold of coagulation proteases cleaving protease activated receptor (PAR) 2 that plays pivotal roles in angiogenesis and tumor development. Here we demonstrate that coagulation factor (F) VIIa elicits TF cytoplasmic domain-dependent pro-angiogenic cell signaling independent of the alternative PAR2 activator matriptase. We identify a Lys-Gly-Glu (KGE) integrin binding motif in the FVIIa protease domain that is required for association of the TF-FVIIa complex with the active conformer of integrin β1...
December 15, 2017: Blood
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