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https://www.readbyqxmd.com/read/28339096/pathogenesis-and-management-of-antiphospholipid-syndrome
#1
REVIEW
Deepa R J Arachchillage, Mike Laffan
Antiphospholipid antibodies are a heterogeneous group of autoantibodies that have clear associations with thrombosis and pregnancy morbidity, and which together constitute the 'antiphospholipid syndrome' (APS). However, the pathophysiology of these complications is not well understood and their heterogeneity suggests that more than one pathogenic process may be involved. Diagnosis remains a combination of laboratory analysis and clinical observation but there have been significant advances in identifying specific pathogenic features, such as domain I-specific anti-β2-glycoprotein-I antibodies...
March 24, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28338598/characterization-of-distinct-coagulopathic-phenotypes-in-injury-pathway-specific-drivers-and-implications-for-individualized-treatment
#2
S Ariane Christie, Lucy Z Kornblith, Benjamin M Howard, Amanda S Conroy, Ryan C Kunitake, Mary F Nelson, Carolyn M Hendrickson, Carolyn S Calfee, Rachael A Callcut, Mitchell Jay Cohen
BACKGROUND: International normalized ratio (INR) and partial thromboplastin time (PTT) are used interchangeably to diagnose acute traumatic coagulopathy (ATC) but reflect disparate activation pathways. In this study we identified injury/patient characteristics and coagulation factors that drive contact pathway, tissue factor pathway (TF), and common pathway dysfunction by examining injured patients with discordant coagulopathies. We hypothesized that patients with INR/PTT discordance reflect differing phenotypes representing contact vs...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28333993/integrated-transcriptomic-and-proteomic-analysis-of-the-molecular-cargo-of-extracellular-vesicles-derived-from-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#3
Alfonso Eirin, Xiang-Yang Zhu, Amrutesh S Puranik, John R Woollard, Hui Tang, Surendra Dasari, Amir Lerman, Andre J van Wijnen, Lilach O Lerman
BACKGROUND: Mesenchymal stromal/stem cell (MSC) transplantation is a promising therapy for tissue regeneration. Extracellular vesicles (EVs) released by MSCs act as their paracrine effectors by delivering proteins and genetic material to recipient cells. To assess how their cargo mediates biological processes that drive their therapeutic effects, we integrated miRNA, mRNA, and protein expression data of EVs from porcine adipose tissue-derived MSCs. METHODS: Simultaneous expression profiles of miRNAs, mRNAs, and proteins were obtained by high-throughput sequencing and LC-MS/MS proteomic analysis in porcine MSCs and their daughter EVs (n = 3 each)...
2017: PloS One
https://www.readbyqxmd.com/read/28323357/characterisation-of-clotting-factors-anticoagulant-protein-activities-and-viscoelastic-analysis-in-healthy-donkeys
#4
A Perez-Ecija, F J Mendoza
BACKGROUND: Studies have demonstrated differences in commonly measured hemostatic parameters between donkeys and horses. Whether clotting factors, anticoagulant protein activities and thromboelastography parameters also differ between species is still unknown. OBJECTIVES: To characterize hemostatic parameters in healthy donkeys and compare them to those of horses. STUDY DESIGN: Cross-sectional study. METHODS: Clotting Factors (V, VII, VIII, IX, X, XI and XII), and antithrombin III, Protein C and Protein S activities were measured in 80 healthy Andalusian and crossbred donkeys and 40 healthy Andalusian crossbred horses with assays based on human deficient plasmas...
March 21, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28322071/an-additional-bolus-of-rapid-acting-insulin-to-normalise-postprandial-cardiovascular-risk-factors-following-a-high-carbohydrate-high-fat-meal-in-patients-with-type-1-diabetes-a-randomised-controlled-trial
#5
Matthew D Campbell, Mark Walker, Ramzi A Ajjan, Karen M Birch, Javier T Gonzalez, Daniel J West
AIM: To evaluate an additional rapid-acting insulin bolus on postprandial lipaemia, inflammation and pro-coagulation following high-carbohydrate high-fat feeding in people with type 1 diabetes. METHODS: A total of 10 males with type 1 diabetes [HbA1c 52.5 ± 5.9 mmol/mol (7.0% ± 0.5%)] underwent three conditions: (1) a low-fat (LF) meal with normal bolus insulin, (2), a high-fat (HF) meal with normal bolus insulin and (3) a high-fat meal with normal bolus insulin with an additional 30% insulin bolus administered 3-h post-meal (HFA)...
March 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28320452/compared-to-the-amniotic-membrane-wharton-s-jelly-may-be-a-more-suitable-source-of-mesenchymal-stem-cells-for-cardiovascular-tissue-engineering-and-clinical-regeneration
#6
Lei Pu, Mingyao Meng, Jian Wu, Jing Zhang, Zongliu Hou, Hui Gao, Hui Xu, Boyu Liu, Weiwei Tang, Lihong Jiang, Yaxiong Li
BACKGROUND: The success of developing cardiovascular tissue engineering (CTE) grafts greatly needs a readily available cell substitute for endothelial and interstitial cells. Perinatal annexes have been proposed as a valuable source of mesenchymal stem cells (MSCs) for tissue engineering and regenerative medicine. The objective of the present study is to evaluate the potential of human Wharton's jelly MSCs (WJ-MSCs) and amniotic membrane MSCs (AM-MSCs) as a seeding cell in CTE and cardiovascular regenerative medicine...
March 21, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28316335/complement-in-anca-associated-vasculitis-mechanisms-and-implications-for-management
#7
REVIEW
Min Chen, David R W Jayne, Ming-Hui Zhao
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a group of potentially life-threatening autoimmune diseases. The main histological feature in the kidneys of patients with AAV is pauci-immune necrotizing crescentic glomerulonephritis with little immunoglobulin and complement deposition in the glomerular capillary walls. The complement system was not, therefore, initially thought to be associated with the development of AAV. Accumulating evidence from animal models and clinical observations indicate, however, that activation of the complement system - and the alternative pathway in particular - is crucial for the development of AAV, and that the complement activation product C5a has a central role...
March 20, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28304376/an-integrated-analysis-based-on-transcriptome-and-proteome-reveals-deastringency-related-genes-in-cpcna-persimmon
#8
Wenxing Chen, Yalou Xiong, Liqing Xu, Qinglin Zhang, Zhengrong Luo
Persimmon fruits accumulate a large amount of proanthocyanidins (PAs) during development. PAs cause a dry or puckering sensation due to its astringency. Pollination constant and non-astringent (PCNA) persimmon fruits can lose astringency during fruit ripening. However, little is known about the mechanism of natural de-astringency of Chinese PCNA (CPCNA). To gain insight into the molecular events of CPCNA natural de-astringency, we used mRNA-seq and iTRAQ-based quantitative proteomic analysis to measure changes in genes and proteins expression at two key stages of natural astringency removal (i...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303603/human-il-6-il-17-il-1%C3%AE-and-tnf-%C3%AE-differently-regulate-the-expression-of-pro-inflammatory-related-genes-tissue-factor-and-swine-leukocyte-antigen-class-i-in-porcine-aortic-endothelial-cells
#9
Hanchao Gao, Lu Liu, Yanli Zhao, Hidetaka Hara, Pengfei Chen, Jia Xu, Jia Tang, Ling Wei, Zesong Li, David K C Cooper, Zhiming Cai, Lisha Mou
BACKGROUND: Pro-inflammatory cytokines play important pathological effects in various diseases and allotransplantation; however, their pathological role in xenotransplantation remains elusive. In pig-to-human cell or organ transplantation, whether porcine cells or organs are activated by human cytokines or not as an important question needs to be investigated. METHODS: We investigated the effect of human IL-6, IFN-γ, IL-17, IL-1β, and TNF-α in xenotransplantation using several in vitro models and porcine aortic endothelial cells (PAECs) as target cells...
March 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28299827/factors-linked-to-disease-severity-and-time-to-remission-in-patients-with-chronic-spontaneous-urticaria
#10
REVIEW
Mario Sánchez-Borges, Fernan Caballero-Fonseca, Arnaldo Capriles-Hulett, Luis González-Aveledo, Marcus Maurer
BACKGROUND: Biomarkers useful for the evaluation and management of patients with chronic spontaneous urticaria (CSU) are not currently available. OBJECTIVE: A review of various clinical and laboratory markers that have been studied to assess their value for determining the severity or predicting the evolution of disease in adult patients with CSU. METHODS: A search of the medical literature on Pubmed and MEDLINE including the terms urticaria, chronic urticaria, chronic idiopathic urticaria, chronic spontaneous urticaria, severity, prognosis, and treatment...
March 16, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28295343/epithelial-membrane-protein-2-emp2-deficiency-alters-placental-angiogenesis-mimicking-features-of-human-placental-insufficiency
#11
Carmen J Williams, Alison Chu, Wendy N Jefferson, David Casero, Deepthi Sudhakar, Nevil Khurana, Claire P Hogue, Chinmayi Aryasomayajula, Priya Patel, Peggy Sullivan, Elizabeth Padilla-Banks, Shabnam Mohandessi, Carla Janzen, Madhuri Wadehra
Epithelial membrane protein-2 (EMP2) is a tetraspan protein predicted to regulate placental development. Highly expressed in secretory endometrium and trophectoderm cells, previous studies suggest that it may regulate implantation by orchestrating the surface expression of integrins and other membrane proteins. In order to test the role of EMP2 in pregnancy, mice lacking EMP2 (Emp2(-/-) ) were generated. Emp2(-/-) females are fertile but have reduced litter sizes when carrying Emp2(-/-) but not Emp2(+/-) fetuses...
March 14, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28288667/dual-inhibition-of-thrombin-and-activated-factor-x-attenuates-disseminated-intravascular-coagulation-and-protects-organ-function-in-a-baboon-model-of-severe-gram-negative-sepsis
#12
Herbert Schöchl, Martijn van Griensven, Stefan Heitmeier, Volker Laux, Ulrike Kipman, Jan Roodt, Soheyl Bahrami, Heinz Redl
BACKGROUND: Inhibition of procoagulant pathways may improve outcome in sepsis. We examined whether a dual short-acting thrombin (factor II) and factor X (FX)a inhibitor (SATI) ameliorates sepsis-induced disseminated intravascular coagulation (DIC) and is organ-protective. METHODS: Escherichia coli were infused for 2 h in 22 anesthetized baboons. The control (CO) group (n = 8) received sterile isotonic solution only. In the treatment groups, SATI was administered starting 15 minutes after the end of the bacterial exposure...
March 13, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28287584/a-microfluidic-flow-chamber-model-for-platelet-transfusion-and-hemostasis-measures-platelet-deposition-and-fibrin-formation-in-real-time
#13
Katrijn R Six, Rosalie Devloo, Britt Van Aelst, Philippe Vandekerckhove, Hendrik B Feys, Veerle Compernolle
Microfluidic models of hemostasis assess platelet function under conditions of hydrodynamic shear, but in the presence of anticoagulants, this analysis is restricted to platelet deposition only. The intricate relationship between Ca(2+)-dependent coagulation and platelet function requires careful and controlled recalcification of blood prior to analysis. Our setup uses a Y-shaped mixing channel, which supplies concentrated Ca(2+)/Mg(2+) buffer to flowing blood just prior to perfusion, enabling rapid recalcification without sample stasis...
February 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28286423/oligonucleotides-targeting-coagulation-factor-mrnas-use-in-thrombosis-and-hemophilia-research-and-therapy
#14
REVIEW
Marco Heestermans, Bart J M van Vlijmen
Small interfering (si) RNAs and antisense oligonucleotides (ASOs; here for simplicity reasons, both referred to as oligonucleotides) are small synthetic RNA or DNA molecules with a sequence complementary to a (pre)mRNA. Although the basic mechanisms of action between siRNAs and ASO are distinct, a sequence-specific interaction of the both oligonucleotides with the target (pre)mRNA alters the target's fate, which includes highly effective sequence-specific blockade of translation and consequently depletion of the corresponding protein...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28285017/effects-of-the-aryl-hydrocarbon-receptor-agonist-3-methylcholanthrene-on-the-17%C3%AE-estradiol-regulated-mrna-transcriptome-of-the-rat-uterus
#15
Janina Helle, Annekathrin M Keiler, Oliver Zierau, Peggy Dörfelt, Günter Vollmer, Leane Lehmann, Sridar V Chittur, Martin Tenniswood, JoEllen Welsh, Georg Kretzschmar
Polycyclic aromatic hydrocarbons (PAHs) are products of incomplete combustion of organic compounds, abundant in exhaust fumes and cigarette smoke. They act by binding to the aryl hydrocarbon receptor (AHR) which induces expression of phase 1 and phase 2 enzymes in the liver. PAH induced AHR activation may also lead to adverse effects by modulating other pathways, for example estrogen receptor (ER) signaling in the female reproductive tract. We have investigated the effects of the PAH 3-methylcholanthrene (3-MC) on 17β-estradiol (E2) dependent signaling in the uterus of ovariectomized rats to characterize the cross talk between AHR and ER on an mRNA transcriptome wide scale...
March 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28283837/vascular-hyperpermeability-as-a-hallmark-of-phacomatoses-is-the-etiology-angiogenesis-related-to-or-comparable-with-mechanisms-seen-in-inflammatory-pathways-part-ii-angiogenesis-and-inflammation-related-molecular-pathways-tumor-associated-macrophages-and-possible
#16
REVIEW
Yosef Laviv, Burkhard Kasper, Ekkehard M Kasper
Phacomatoses are a special group of familial hamartomatous syndromes with unique neurocutaneous manifestations as well as characteristic tumors. Neurofibromatosis type 2 (NF2) and tuberous sclerosis complex (TSC) are representatives of this family. A vestibular schwannoma (VS) and subependymal giant cell tumor (SGCT) are two of the most common intracranial tumors associated with these syndromes, related to NF2 and TSC, respectively. These tumors can present with an obstructive hydrocephalus due to their location adjacent to or in the ventricles...
March 11, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28283674/endometrial-transcriptome-in-recurrent-miscarriage-and-recurrent-implantation-failure
#17
Jin Huang, Hao Qin, Yihua Yang, Xiaoyan Chen, Jiamiao Zhang, Susan Laird, Chi Chiu Wang, Ting Fung Chan, Tin Chiu Li
The endometrium becomes receptive to the embryo only in the mid-luteal phase, but not other stages of the menstrual cycle. Endometrial factors play an important role in implantation. Women with recurrent miscarriage and recurrent implantation failure have both been reported to have altered expression of receptivity markers during the window of implantation. We aimed to compare the gene expression profiles of the endometrium in the window of implantation among women with unexplained recurrent implantation failures (RIF) and unexplained recurrent miscarriages (RM) by RNA sequencing (RNA-Seq)...
March 10, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28280039/pathway-specific-aggregate-biomarker-risk-score-is-associated-with-burden-of-coronary-artery-disease-and-predicts-near-term-risk-of-myocardial-infarction-and-death
#18
Nima Ghasemzedah, Salim S Hayek, Yi-An Ko, Danny J Eapen, Riyaz S Patel, Pankaj Manocha, Hatem Al Kassem, Mohamed Khayata, Emir Veledar, Dimitrios Kremastinos, Christian W Thorball, Tomasz Pielak, Sergey Sikora, A Maziar Zafari, Stamatios Lerakis, Laurence Sperling, Viola Vaccarino, Stephen E Epstein, Arshed A Quyyumi
BACKGROUND: Inflammation, coagulation, and cell stress contribute to atherosclerosis and its adverse events. A biomarker risk score (BRS) based on the circulating levels of biomarkers C-reactive protein, fibrin degradation products, and heat shock protein-70 representing these 3 pathways was a strong predictor of future outcomes. We investigated whether soluble urokinase plasminogen activator receptor (suPAR), a marker of immune activation, is predictive of outcomes independent of the aforementioned markers and whether its addition to a 3-BRS improves risk reclassification...
March 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28279217/hypofibrinolysis-in-diabetes-a-therapeutic-target-for-the-reduction-of-cardiovascular-risk
#19
REVIEW
Katherine Kearney, Darren Tomlinson, Kerrie Smith, Ramzi Ajjan
An enhanced thrombotic environment and premature atherosclerosis are key factors for the increased cardiovascular risk in diabetes. The occlusive vascular thrombus, formed secondary to interactions between platelets and coagulation proteins, is composed of a skeleton of fibrin fibres with cellular elements embedded in this network. Diabetes is characterised by quantitative and qualitative changes in coagulation proteins, which collectively increase resistance to fibrinolysis, consequently augmenting thrombosis risk...
March 9, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28276902/comparative-proteomic-exploration-of-whey-proteins-in-human-and-bovine-colostrum-and-mature-milk-using-itraq-coupled-lc-ms-ms
#20
Mei Yang, Xueyan Cao, Rina Wu, Biao Liu, Wenhui Ye, Xiqing Yue, Junrui Wu
Whey, an essential source of dietary nutrients, is widely used in dairy foods for infants. A total of 584 whey proteins in human and bovine colostrum and mature milk were identified and quantified by the isobaric tag for relative and absolute quantification (iTRAQ) proteomic method. The 424 differentially expressed whey proteins were identified and analyzed according to gene ontology (GO) annotation, Kyoto encyclopedia of genes and genomes (KEGG) pathway, and multivariate statistical analysis. Biological processes principally involved biological regulation and response to stimulus...
February 20, 2017: International Journal of Food Sciences and Nutrition
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