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https://www.readbyqxmd.com/read/28523980/diverse-endometrial-mrna-signatures-during-the-window-of-implantation-in-patients-with-repeated-implantation-failure
#1
Cheng Shi, Hong Jing Han, Li Juan Fan, Jing Guan, Xing Bang Zheng, Xi Chen, Rong Liang, Xiao Wei Zhang, Kun Kun Sun, Qing Hua Cui, Huan Shen
High endometrial receptivity in the window of implantation (WOI) is essential for successful implantation. However, a diagnostic tool with high specificity for impaired endometrial receptivity remains to be developed. We collected endometrium specimens during the WOI from patients with RIF and women who conceived after one IVF/ICSI attempt. We conducted mRNA microarray on the samples followed by relevant comparative and functional analysis. Microarray analysis revealed 357 dysregulated mRNAs between the two groups...
May 19, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28503126/in-vitro-and-ex-vivo-measurement-of-prophylactic-dabigatran-concentrations-with-a-new-ecarin-based-thromboelastometry-test
#2
Mareike Kristina Körber, Elisabeth Langer, Martin Köhr, Klaus-Dieter Wernecke, Wolfgang Korte, Christian von Heymann
BACKGROUND: An increasing number of oral anticoagulants has been approved, including dabigatran etexilate (DE). DE is a direct thrombin inhibitor that requires no routine monitoring, but, if necessary (e.g. urgent surgery etc.), the diluted thrombin time measured with Hemoclot® has shown reliable results. So far, no point-of-care (PoC) assay is available to measure DE effects. The EcaTEM assay uses ecarin to initiate the coagulation cascade at the step of thrombin generation and measures the clotting time (CT) by thromboelastometry...
April 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28495852/high-throughput-mrna-sequencing-of-stromal-cells-from-endometriomas-and-endometrium
#3
Kadri Rekker, Merli Saare, Elo Eriste, Tõnis Tasa, Viktorija Kukuškina, Anne Mari Roost, Kristi Anderson, Külli Samuel, Helle Karro, Andres Salumets, Maire Peters
The aetiology of endometriosis is still unclear and to find mechanisms behind the disease development it is important to study each cell type from endometrium and ectopic lesions independently. The objective of this study was to uncover complete mRNA profiles in uncultured stromal cells from paired samples of endometriomas and eutopic endometrium. High-throughput mRNA sequencing revealed over 1,300 dysregulated genes in stromal cells from ectopic lesions, including several novel genes in the context of endometriosis...
May 11, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28472252/new-insights-into-the-role-of-adipose-tissue-in-thrombosis
#4
Gemma Vilahur, Soumaya Ben-Aicha, Lina Badimon
Central obesity is independently associated with an elevated risk of cardiovascular disease, particularly thrombotic complications. Increasing data supports a link between excess body weight and the risk to suffer acute myocardial infarction, stent thrombosis after percutaneous interventions, ischemic stroke and vein thrombosis.Experimental and in vitro data have provided insights as to the mechanisms currently presumed to increase the thrombotic risk in obese subjects. Obesity is characterized by a chronic low grade inflammation and systemic oxidative stress that eventually damage the endothelium losing its antithrombotic properties...
May 3, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28464190/amniotic-fluid-embolism-is-a-new-pregnancy-possible-case-report
#5
Ana Filipa Cabrita Caeiro, Irina Dulce Tapadinhas Matos Ramilo, Ana Paula Santos, Elizabeth Ferreira, Isabel Santos Batalha
Amniotic fluid embolism (AFE) is a rare but potentially catastrophic clinical condition, characterized by a combination of signs and symptoms that reflect respiratory distress, cardiovascular collapse and disseminated intravascular coagulation (DIC). Its pathogenesis is still unclear. More recently, the traditional view of obstruction of pulmonary capillary vessels by amniotic fluid emboli as the main explanation for the etiology has been ruled out, and immunologic factors and the activation of the inflammatory cascade took on an important role...
May 2, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28376529/role-of-direct-oral-anticoagulants-in-the-management-of-anticoagulation
#6
Rajiv N Thakkar, Suman W Rathbun, Scott M Wright
For decades, vitamin K antagonists (VKAs) have been the oral treatment of choice for many thromboembolic conditions. The limitations of VKAs include the need for monitoring through blood testing, drug interactions, and narrow therapeutic windows. These shortcomings have led to the development of direct oral anticoagulants. These new oral agents act on specific targets in the coagulation cascade (eg, factor Xa, thrombin) and negate some of the shortcomings of VKAs. This article reviews the roles of dabigatran, rivaroxaban, apixaban, and edoxaban in stroke prevention in nonvalvular atrial fibrillation, for prevention of venous thromboembolism after orthopedic surgery, and in the treatment of venous thromboembolism...
April 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28365976/new-anticoagulants-for-the-prevention-and-treatment-of-venous-thromboembolism
#7
REVIEW
Joo Hee Kim, Kyung-Min Lim, Hye Sun Gwak
Anticoagulant drugs, like vitamin K antagonists and heparin, have been the mainstay for the treatment and prevention of venous thromboembolic disease for many years. Although effective if appropriately used, traditional anticoagulants have several limitations such as unpredictable pharmacologic and pharmacokinetic responses and various adverse effects including serious bleeding complications. New oral anticoagulants have recently emerged as an alternative because of their rapid onset/offset of action, predictable linear dose-response relationships and fewer drug interactions...
April 6, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28335516/marine-diterpenes-molecular-modeling-of-thrombin-inhibitors-with-potential-biotechnological-application-as-an-antithrombotic
#8
Rebeca Cristina Costa Pereira, André Luiz Lourenço, Luciana Terra, Paula Alvarez Abreu, Valéria Laneuville Teixeira, Helena Carla Castro
Thrombosis related diseases are among the main causes of death and incapacity in the world. Despite the existence of antithrombotic agents available for therapy, they still present adverse effects like hemorrhagic risks which justify the search for new options. Recently, pachydictyol A, isopachydictyol A, and dichotomanol, three diterpenes isolated from Brazilian marine brown alga Dictyota menstrualis were identified as potent antithrombotic molecules through inhibition of thrombin, a key enzyme of coagulation cascade and a platelet agonist...
March 20, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28321657/novel-hemostatic-agents-based-on-gelatin-microbial-transglutaminase-mix
#9
Fang Lv, Xiaonan Cong, Wenshu Tang, Yiming Han, Yu Tang, Yongrui Liu, Liqiang Su, Mingyao Liu, Mingfei Jin, Zhengfang Yi
Hemostasis is a major challenge in surgical procedures and traumas. Conventional hemostatic methods have limited efficacy and may cause additional tissue damage. In this study, we designed a novel hemostatic agent based on the in situ gel formation of gelatin cross-linked by a novel microbial transglutaminase (mTGase), in which the amino acid sequences differed from commercial mTGases. The new hemostatic agent showed the same biochemical crosslinking chemistry as the final stages of the blood coagulation cascade while using gelatin as a "structural" protein (rather than fibrin) and a calcium-independent mTGase as the crosslinking catalyst (rather than factor XIIIa)...
March 17, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28288507/anticoagulation-in-cirrhosis-a-new-paradigm
#10
REVIEW
Filippo Leonardi, Nicola De Maria, Erica Villa
The liver plays a crucial role in coagulation cascade. Global hemostatic process is profoundly influenced by the presence of liver disease and its complications. Patients with cirrhosis have impaired synthesis of most of the factors involved in coagulation and fibrinolysis process due to a reduced liver function and altered platelet count secondary to portal hypertension. Altered routine tests and thrombocytopenia were considered in the past as associated with increased risk of bleeding. These concepts explain both the routine use of plasma and/or platelets transfusion in patients with liver cirrhosis, especially before invasive procedures, and why these patients were considered "auto-anticoagulated"...
March 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28284660/itraq-based-quantitative-proteomics-discovering-potential-serum-biomarkers-in-locoweed-poisoned-rabbits
#11
Jifeng Jiao, Shuai Wang, Ruishi Zhang, Zhiyan Ma, Guofeng Du, Xiaolu Chen, Dayong Tao, Jinxiang Zhao
Locoism threatens the sustainable development of animal husbandry in areas around the world with intensified desertification, especially in the western United States, western China, Canada, and Mexico, among other countries. This study was conducted to discover potential serum biomarkers in locoweed-poisoned rabbits and lay a foundation for early diagnosis of locoism. We performed iTRAQ labeling coupled with two-dimensional liquid chromatography-tandem mass spectrometry (2D LC-MS/MS), comparing locoweed-poisoned rabbits and healthy controls...
April 25, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28282887/new-insights-in-thrombin-inhibition-structure-activity-relationships-by-characterization-of-octadecasaccharides-from-low-molecular-weight-heparin
#12
Pierre A J Mourier, Olivier Y Guichard, Fréderic Herman, Philippe Sizun, Christian Viskov
Low Molecular Weight Heparins (LMWH) are complex anticoagulant drugs that mainly inhibit the blood coagulation cascade through indirect interaction with antithrombin. While inhibition of the factor Xa is well described, little is known about the polysaccharide structure inhibiting thrombin. In fact, a minimal chain length of 18 saccharides units, including an antithrombin (AT) binding pentasaccharide, is mandatory to form the active ternary complex for LMWH obtained by alkaline β-elimination (e.g., enoxaparin)...
March 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28267938/applying-the-cell-based-coagulation-model-in-the-management-of-critical-bleeding
#13
K M Ho, W Pavey
The cell-based coagulation model was proposed 15 years ago, yet has not been applied commonly in the management of critical bleeding. Nevertheless, this alternative model may better explain the physiological basis of current coagulation management during critical bleeding. In this article we describe the limitations of the traditional coagulation protein cascade and standard coagulation tests, and explain the potential advantages of applying the cell-based model in current coagulation management strategies...
March 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28219339/deep-illumina-sequencing-reveals-conserved-and-novel-micrornas-in-grass-carp-in-response-to-grass-carp-reovirus-infection
#14
Libo He, Aidi Zhang, Pengfei Chu, Yongming Li, Rong Huang, Lanjie Liao, Zuoyan Zhu, Yaping Wang
BACKGROUND: The grass carp hemorrhagic disease caused by the grass carp reovirus (GCRV) is a major disease that hampers the development of grass carp aquaculture. The mechanism underlying GCRV pathogenesis and hemorrhagic symptoms is still unknown. MicroRNAs (miRNAs) are key regulators involved in various biological processes. The aim of this study was to identify conserved and novel miRNAs in grass carp in response to GCRV infection, as well as attempt to reveal the mechanism underlying GCRV pathogenesis and hemorrhagic symptoms...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28196659/sutures-impregnated-with-carbazate-activated-polyvinyl-alcohol-reduce-intraperitoneal-adhesions
#15
F Fredriksson, F Sellberg, T Bowden, T Engstrand, D Berglund, H E Lilja
BACKGROUND: Intraperitoneal adhesions cause significant morbidity. They occur after peritoneal trauma, which induces oxidative stress with production of inflammatory cytokines, peroxidized proteins (carbonyls) and lipids (aldehydes). This study aimed to investigate if carbazate-activated polyvinyl alcohol (PVAC), an aldehyde-carbonyl inhibitor, can reduce intraperitoneal adhesions in an experimental model. MATERIAL AND METHODS: Male Sprague-Dawley rats (n=110) underwent laparotomy, cecal abrasion and construction of a small bowel anastomosis...
February 1, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28150568/structural-modulation-of-factor-viia-by-full-length-tissue-factor-tf1-263-implication-of-novel-interactions-between-egf2-domain-and-tf
#16
Ramesh Prasad, Prosenjit Sen
Tissue factor (TF)-mediated factor VII (FVII) activation and a subsequent proteolytic TF-FVIIa binary complex formation is the key step initiating the coagulation cascade, with implications in various homeostatic and pathologic scenarios. TF binding allosterically modifies zymogen-like free FVIIa to its highly catalytically active form. As a result of unresolved crystal structure of the full-length TF1-263-FVIIa binary complex and free FVIIa, allosteric alterations in FVIIa following its binding to full-length TF and the consequences of these on function are not entirely clear...
February 17, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28123102/from-the-cover-the-minipig-is-a-suitable-non-rodent-model-in-the-safety-assessment-of-single-stranded-oligonucleotides
#17
Annamaria Braendli-Baiocco, Matthias Festag, Kamille Dumong Erichsen, Robert Persson, Michael J Mihatsch, Niels Fisker, Juergen Funk, Susanne Mohr, Rainer Constien, Corinne Ploix, Kevin Brady, Marco Berrera, Bernd Altmann, Barbara Lenz, Mudher Albassam, Georg Schmitt, Thomas Weiser, Franz Schuler, Thomas Singer, Yann Tessier
Non-human primates (NHPs) are currently considered to be the non-rodent species of choice for the preclinical safety assessment of single-stranded oligonucleotide (SSO) drugs. We evaluated minipigs as a potential alternative to NHPs to test the safety of this class of compounds. Four different phosphorothioated locked nucleic acid-based SSOs (3 antisense and 1 anti-miR), all with known safety profiles, were administered to minipigs using similar study designs and read-outs as in earlier NHP studies with the same compounds...
May 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28079978/targeting-coagulation-factor-receptors-protease-activated-receptors-in-idiopathic-pulmonary-fibrosis
#18
REVIEW
C Lin, K Borensztajn, C A Spek
Idiopathic pulmonary fibrosis (IPF) is a lethal lung disease with a 5-year mortality rate of > 50% and unknown etiology. Treatment options remain limited and, currently, only two drugs are available, i.e. nintedanib and pirfenidone. However, both of these antifibrotic agents only slow down the progression of the disease, and do not remarkably prolong the survival of IPF patients. Hence, the discovery of new therapeutic targets for IPF is crucial. Studies exploring the mechanisms that are involved in IPF have identified several possible targets for therapeutic interventions...
April 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28035007/inhibition-of-factor-xia-reduces-the-frequency-of-cerebral-microembolic-signals-derived-from-carotid-arterial-thrombosis-in-rabbits
#19
Xinkang Wang, Stan Kurowski, Weizhen Wu, Gino A Castriota, Xueping Zhou, Lin Chu, Kenneth P Ellsworth, Donald Chu, Scott Edmondson, Amjad Ali, Patrick Andre, Dietmar Seiffert, Mark Erion, David E Gutstein, Zhu Chen
Factor XI (FXI) is an integral component of the intrinsic pathway of the coagulation cascade and plays a critical role in thrombus formation. Because its role in the pathogenesis of cerebral microembolic signals (MES) is unclear, this study used a potent and selective small molecule inhibitor of FXIa, compound 1, to assess the effect of FXI blockade in our recently established preclinical model of cerebral MES induced by FeCl3 injury of the carotid artery in male New Zealand White rabbits. Ascending doses of compound 1 were evaluated simultaneously for both carotid arterial thrombosis by a Doppler flowmeter and MES in the middle cerebral artery by a transcranial Doppler...
March 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28005926/the-central-role-of-kng1-gene-as-a-genetic-determinant-of-coagulation-pathway-related-traits-exploring-metaphenotypes
#20
Helena Brunel, Raimon Massanet, Angel Martinez-Perez, Andrey Ziyatdinov, Laura Martin-Fernandez, Juan Carlos Souto, Alexandre Perera, José Manuel Soria
Traditional genetic studies of single traits may be unable to detect the pleiotropic effects involved in complex diseases. To detect the correlation that exists between several phenotypes involved in the same biological process, we introduce an original methodology to analyze sets of correlated phenotypes involved in the coagulation cascade in genome-wide association studies. The methodology consists of a two-stage process. First, we define new phenotypic meta-variables (linear combinations of the original phenotypes), named metaphenotypes, by applying Independent Component Analysis for the multivariate analysis of correlated phenotypes (i...
2016: PloS One
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