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https://www.readbyqxmd.com/read/28434170/establishment-and-characterization-of-novel-epithelial-like-cell-lines-derived-from-human-periodontal-ligament-tissue-in-vitro
#1
Kallapat Tansriratanawong, Hiroshi Ishikawa, Junko Toyomura, Soh Sato
In this study, novel human-derived epithelial-like cells (hEPLCs) lines were established from periodontal ligament (PDL) tissues, which were composed of a variety of cell types and exhibited complex cellular activities. To elucidate the putative features distinguishing these from epithelial rest of Malassez (ERM), we characterized hEPLCs based on cell lineage markers and tight junction protein expression. The aim of this study was, therefore, to establish and characterize hEPLCs lines from PDL tissues. The hEPLCs were isolated from PDL of third molar teeth...
April 22, 2017: Human Cell
https://www.readbyqxmd.com/read/28414763/enhanced-offspring-predisposition-to-steatohepatitis-with-maternal-high-fat-diet-is-associated-with-epigenetic-and-microbiome-alterations
#2
Umesh D Wankhade, Ying Zhong, Ping Kang, Maria Alfaro, Sree V Chintapalli, Keshari M Thakali, Kartik Shankar
OBJECTIVE: Non-alcoholic fatty liver disease (NAFLD) is an important co-morbidity associated with obesity and a precursor to steatohepatitis. However, the contributions of gestational and early life influences on development of NAFLD and NASH remain poorly appreciated. METHODS: Two independent studies were performed to examine whether maternal over-nutrition via exposure to high fat diet (HFD) leads to exacerbated hepatic responses to post-natal HFD and methionine choline deficient (MCD) diets in the offspring...
2017: PloS One
https://www.readbyqxmd.com/read/28393518/enhancing-vascularization-through-the-controlled-release-of-platelet-derived-growth-factor-bb
#3
Silvia Minardi, Laura Pandolfi, Francesca Taraballi, Xin Wang, Enrica De Rosa, Zachary D Mills, Xuewu Liu, Mauro Ferrari, Ennio Tasciotti
Using delivery systems to control the in vivo release of growth factors (GFs) for tissue engineering applications is extremely desirable as the clinical use of GFs is limited by their fast in vivo turnover. Hence, the development of effective platforms that are able to finely control the release of GFs in vivo remains a challenge. Herein, we investigated the ability of multiscale microspheres, composed by a nanostructured silicon multistage vector (MSV) core and a poly(dl-lactide-co-glycolide) acid (PLGA) forming outer shell (PLGA-MSV), to release functional platelet-derived growth factor-BB (PDGF-BB) to induce in vivo localized neovascularization...
April 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28377053/identification-of-transcription-factors-that-may-reprogram-lung-adenocarcinoma
#4
Chenglin Liu, Yu-Hang Zhang, Tao Huang, Yudong Cai
BACKGROUND: Lung adenocarcinoma is one of most threatening disease to human health. Although many efforts have been devoted to its genetic study, few researches have been focused on the transcription factors which regulate tumor initiation and progression by affecting multiple downstream gene transcription. It is proved that proper transcription factors may mediate the direct reprogramming of cancer cells, and reverse the tumorigenesis on the epigenetic and transcription levels. METHODS: In this paper, a computational method is proposed to identify the core transcription factors that can regulate as many as possible lung adenocarcinoma associated genes with as little as possible redundancy...
April 1, 2017: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/28362648/abnormal-angiogenesis-in-blood-outgrowth-endothelial-cells-derived-from-von-willebrand-disease-patients
#5
Soundarya N Selvam, Lara J Casey, Mackenzie L Bowman, Lindsey G Hawke, Avery J Longmore, Jeffrey Mewburn, Mark L Ormiston, Stephen L Archer, Donald H Maurice, Paula James
Bleeding associated with angiodysplasia is a common, often intractable complication in patients with von Willebrand disease (VWD). von Willebrand factor (VWF), the protein deficient or defective in VWD, is a negative regulator of angiogenesis, which may explain the pathologic blood vessel growth in VWD. This study explores the normal range of angiogenesis in blood outgrowth endothelial cells (BOECs) derived from healthy donors and compares this to angiogenesis in BOECs from VWD patients of all types and subtypes...
March 30, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28348515/transcriptome-analysis-of-hypothalamic-gene-expression-during-daily-torpor-in-djungarian-hamsters-phodopus-sungorus
#6
Ceyda Cubuk, Julia Kemmling, Andrej Fabrizius, Annika Herwig
Animals living at high or temperate latitudes are challenged by extensive changes in environmental conditions over seasons. Djungarian hamsters (Phodopus sungorus) are able to cope with extremely cold ambient temperatures and food scarcity in winter by expressing spontaneous daily torpor. Daily torpor is a circadian controlled voluntary reduction of metabolism that can reduce energy expenditure by up to 65% when used frequently. In the past decades it has become more and more apparent, that the hypothalamus is likely to play a key role in regulating induction and maintenance of daily torpor, but the molecular signals, which lead to the initiation of daily torpor, are still unknown...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28229819/dabigatran-aggravates-topoisomerase-i-peptide-loaded-dendritic-cells-induced-lung-and-skin-fibrosis
#7
Heena Mehta, Shunya Mashiko, Philippe-Olivier Goulet, Jade Desjardins, Gemma Pérez, Martial Koenig, Jean-Luc Senécal, Marika Sarfati
OBJECTIVES: Dysregulated coagulation cascade has been implicated in development of fibrosis in systemic sclerosis (SSc). Thrombin, a key mediator of the coagulation pathway, has both proinflammatory and procoagulant properties. Here, we evaluated the efficacy of oral dabigatran, a direct thrombin inhibitor, on topoisomerase I dendritic cells (TOPOIA DCs)-induced lung and skin fibrosis, an experimental model of SSc. METHODS: Mice were repeatedly immunized with TOPOIA DCs...
February 8, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28224023/evaluation-of-liver-cirrhosis-and-hepatocellular-carcinoma-using-protein-protein-interaction-networks
#8
Mohammad Javad Ehsani Ardakani, Akram Safaei, Afsaneh Arefi Oskouie, Hesam Haghparast, Mehrdad Haghazali, Hamid Mohaghegh Shalmani, Hassan Peyvandi, Nosratollah Naderi, Mohammad Reza Zali
AIM: In the current study, we analysised only the articles that investigate serum proteome profile of cirrhosis patients or HCC patients versus healthy controls. BACKGROUND: Increased understanding of cancer biology has enabled identification of molecular events that lead to the discovery of numerous potential biomarkers in diseases. Protein-protein interaction networks is one of aspect that could elevate the understanding level of molecular events and protein connections that lead to the identification of genes and proteins associated with diseases...
December 2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28181217/hypercoagulability-and-migraine
#9
Gretchen E Tietjen, Stuart A Collins
BACKGROUND: A growing body of literature suggests that migraineurs, particularly those with aura, have an increased risk for ischemic stroke, but not via enhanced atherosclerosis. The theory that micro-emboli induced ischemia provokes cortical spreading depression (ie, symptomatic aura) in migraineurs but transient ischemic attacks in others highlights a potential role for hypercoagulability as a link between migraine (with aura) and stroke. AIM: Our objective is to summarize the literature evaluating the association of migraine with various acquired or inheritable thrombophilic states, including those related to elevated estrogen levels, endothelial activation and dysfunction, antiphospholipid antibodies (aPL), deficiency of coagulation inhibitors, and presence of certain genetic polymorphisms...
February 9, 2017: Headache
https://www.readbyqxmd.com/read/28150318/determine-exogenous-human-ddah2-gene-function-in-rabbit-bone-marrow-derived-endothelial-progenitor-cells-in-vitro
#10
Sara Shoeibi, Shabnam Mohammadi, Hamid Reza Sadeghnia, Elahe Mahdipour, Majid Ghayour-Mobarhan
The in vitro amplification of endothelial progenitor cells (EPCs) is an important method because of its role in gene transferring and regenerative medicine. In this study, we isolated rabbit bone marrow-derived EPCs to further manipulation and overexpression of dimethylarginine dimethylaminohydrolase (DDAH) in EPCs. Isolated EPCs were cultured, expanded in endothelial basal medium. Morphology of EPCs and expression levels of surface markers detected using immunocytochemistry staining and through the use of flow cytometery...
March 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28091443/molecular-characterization-of-exon-28-of-von-willebrand-s-factor-gene-in-nigerian-population
#11
E D Ezigbo, E O Ukaejiofo, T U Nwagha
BACKGROUND: Polymorphisms in von Willebrand factor (VWF) gene are an important contributor to the expression of VWF gene and differences in ethnic distribution of these single nucleotide polymorphisms (SNPs) exists. AIMS: Our objective was to molecularly characterize the exon 28 of the VWF gene in the three major ethnic groups of Nigeria. SUBJECTS AND METHODS: We recruited 90 subjects, 45 had a history of bleeding. Questions included those used in the Zimmerman Program for the Molecular and Clinical Biology of von Willebrand disease (VWD), and the bleeding scores were calculated using the Molecular and Clinical Markers for the Diagnosis and Management of type 1 VWD scoring system...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28000367/cell-adhesive-peptides-functionalized-on-cocr-alloy-stimulate-endothelialization-and-prevent-thrombogenesis-and-restenosis
#12
Maria Isabel Castellanos, Jordi Guillem-Marti, Carlos Mas-Moruno, Maribel Díaz-Ricart, Ginés Escolar, Maria Pau Ginebra, Francisco Javier Gil, Marta Pegueroles, Jose María Manero
Immobilization of bioactive peptide sequences on CoCr surfaces is an effective route to improve endothelialization, which is of great interest for cardiovascular stents. In this work, we explored the effect of physical and covalent immoblization of RGDS, YIGSR and their equimolar combination peptides on endothelial cells (EC) and smooth muscle cell (SMC) adhesion and on thrombogenicity. We extensively investigated using RT-qPCR, the expression by ECs cultured on functionalised CoCr surfaces of different genes...
April 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27941341/sulodexide-reduces-the-proinflammatory-effect-of-serum-from-patients-with-peripheral-artery-disease-in-human-arterial-endothelial-cells
#13
Patrycja Sosińska, Ewa Baum, Beata Maćkowiak, Magdalena Maj, Katarzyna Sumińska-Jasińska, Ryszard Staniszewski, Andrzej Bręborowicz
BACKGROUND/AIMS: Dysfunction of the arterial endothelial cells promotes the progression of atherosclerosis. We studied how exposure of human arterial endothelial cells to atherosclerotic serum from patients with peripheral artery disease changes the secretory activity of these cells, and whether that reaction is modified by sulodexide. METHODS: Endothelial cells in in vitro culture were exposed to standard culture medium ± 100pg/mL Interleukin-1(IL-1) or to medium supplemented with 20% atherosclerotic serum...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27929200/obesity-insulin-resistance-rather-than-liver-fat-increases-coagulation-factor-activities-and-expression-in-humans
#14
Susanna Lallukka, Panu K Luukkonen, You Zhou, Elina M Petäjä, Marja Leivonen, Anne Juuti, Antti Hakkarainen, Marju Orho-Melander, Nina Lundbom, Vesa M Olkkonen, Riitta Lassila, Hannele Yki-Järvinen
Increased liver fat may be caused by insulin resistance and adipose tissue inflammation or by the common I148M variant in PNPLA3 at rs738409, which lacks both of these features. We hypothesised that obesity/insulin resistance rather than liver fat increases circulating coagulation factor activities. We measured plasma prothrombin time (PT, Owren method), activated partial thromboplastin time (APTT), activities of several coagulation factors, VWF:RCo and fibrinogen, and D-dimer concentration in 92 subjects divided into groups based on insulin sensitivity [insulin-resistant ('IR') versus insulin-sensitive ('IS')] and PNPLA3 genotype (PNPLA3(148MM/MI) vs PNPLA3(148II))...
December 8, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27920237/von-willebrand-disease
#15
Arjun Swami, Varinder Kaur
von Willebrand disease (vWD) is the most common inherited disorder of hemostasis and comprises a spectrum of heterogeneous subtypes. Significant advances have been made in understanding von Willebrand factor ( vWF) gene mutations, resultant physiologic deficits in the vWF peptide, and their correlation to clinical presentation. Diagnostic tests for this disorder are complex, and interpretation requires a thorough understanding of the underlying pathophysiology by the practicing physician. The objective of this review is to summarize our current understanding of pathophysiology, laboratory investigations, and evolving treatment paradigm of vWD with the availability of recombinant von Willebrand factor...
January 1, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27899395/functional-definition-of-progenitors-versus-mature-endothelial-cells-reveals-key-soxf-dependent-differentiation-process
#16
Jatin Patel, Elke J Seppanen, Mathieu P Rodero, Ho Yi Wong, Prudence Donovan, Zoltan Neufeld, Nicholas M Fisk, Mathias François, Kiarash Khosrotehrani
BACKGROUND: -During adult life, blood vessel formation is thought to occur via angiogenic processes involving branching from existing vessels. An alternate proposal suggests that neo-vessels form from endothelial progenitors able to assemble the intimal layers. We here aimed to define vessel-resident endothelial progenitors in vivo in a variety of tissues in physiological and pathological situations such as normal aorta, lungs, as well as wound healing, tumors and placenta. METHODS: -Based on protein expression levels of common endothelial markers using flow cytometry, three sub-populations of endothelial cells could be identified among VE-Cadherin+ and CD45- cells...
November 29, 2016: Circulation
https://www.readbyqxmd.com/read/27797778/network-based-analysis-of-omics-data-the-lean-method
#17
Frederik Gwinner, Gwénola Boulday, Claire Vandiedonck, Minh Arnould, Cécile Cardoso, Iryna Nikolayeva, Oriol Guitart-Pla, Cécile V Denis, Olivier D Christophe, Johann Beghain, Elisabeth Tournier-Lasserve, Benno Schwikowski
Motivation: Most computational approaches for the analysis of omics data in the context of interaction networks have very long running times, provide single or partial, often heuristic, solutions and/or contain user-tuneable parameters. Results: We introduce local enrichment analysis (LEAN) for the identification of dysregulated subnetworks from genome-wide omics datasets. By substituting the common subnetwork model with a simpler local subnetwork model, LEAN allows exact, parameter-free, efficient and exhaustive identification of local subnetworks that are statistically dysregulated, and directly implicates single genes for follow-up experiments...
March 1, 2017: Bioinformatics
https://www.readbyqxmd.com/read/27766062/de-novo-mutation-and-somatic-mosaicism-of-gene-mutation-in-type-2a-2b-and-2m-vwd
#18
Ming-Ching Shen, Ming Chen, Gwo-Chin Ma, Shun-Ping Chang, Ching-Yeh Lin, Bo-Do Lin, Han-Ni Hsieh
BACKGROUND: Von Willebrand disease (VWD) is not uncommon in Taiwan. In type 2 or type 3 VWD hemorrhagic symptoms are severer and laboratory data relatively more distinctive. De novo mutation and somatic mosaicism of type 2 VWD gene were rarely reported. Therefore clinical, laboratory and genetic studies of only type 2A, 2B and 2M VWD will be presented and issues of de novo mutation and somatic mosaicism will be explored. METHODS: Fifty-four patients belonging to 23 unrelated families from all around the country in whom type 2 VWD exclusive of type 2N has been diagnosed not only by clinical and routine laboratory studies but also by genetic confirmation during 1990-2015 were investigated...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27734074/application-of-a-molecular-diagnostic-algorithm-for-haemophilia-a-and-b-using-next-generation-sequencing-of-entire-f8-f9-and-vwf-genes
#19
Jose Maria Bastida Bermeja, Jose Ramon González-Porras, Cristina Jiménez, Rocio Benito, Gonzalo R Ordoñez, Maria Teresa Álvarez-Román, M Elena Fontecha, Kamila Janusz, David Castillo, Rosa María Fisac, Luis Javier García-Frade, Carlos Aguilar, María Paz Martínez, Nuria Bermejo, Sonia Herrero, Ana Balanzategui, Jose Manuel Martin-Antorán, Rafael Ramos, Maria Jose Cebeiro, Emilia Pardal, Carmen Aguilera, Belen Pérez-Gutierrez, Manuel Prieto, Susana Riesco, Maria Carmen Mendoza, Ana Benito, Ana Hortal Benito-Sendin, Víctor Jiménez-Yuste, Jesus Maria Hernández-Rivas, Ramon García-Sanz, Marcos González-Díaz, Maria Eugenia Sarasquete
Currently, molecular diagnosis of haemophilia A and B (HA and HB) highlights the excess risk-inhibitor development associated with specific mutations, and enables carrier testing of female relatives and prenatal or preimplantation genetic diagnosis. Molecular testing for HA also helps distinguish it from von Willebrand disease (VWD). Next-generation sequencing (NGS) allows simultaneous investigation of several complete genes, even though they may span very extensive regions. This study aimed to evaluate the usefulness of a molecular algorithm employing an NGS approach for sequencing the complete F8, F9 and VWF genes...
October 13, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27734030/lim-kinase-cofilin-dysregulation-promotes-macrothrombocytopenia-in-severe-von-willebrand-disease-type-2b
#20
Alexandre Kauskot, Sonia Poirault-Chassac, Frédéric Adam, Vincent Muczynski, Gabriel Aymé, Caterina Casari, Jean-Claude Bordet, Christelle Soukaseum, Chantal Rothschild, Valérie Proulle, Audrey Pietrzyk-Nivau, Eliane Berrou, Olivier D Christophe, Jean-Philippe Rosa, Peter J Lenting, Marijke Bryckaert, Cécile V Denis, Dominique Baruch
von Willebrand disease type 2B (VWD-type 2B) is characterized by gain-of-function mutations of von Willebrand factor (vWF) that enhance its binding to platelet glycoprotein Ibα and alter the protein's multimeric structure. Patients with VWD-type 2B display variable extents of bleeding associated with macrothrombocytopenia and sometimes with thrombopathy. Here, we addressed the molecular mechanism underlying the severe macrothrombocytopenia both in a knockin murine model for VWD-type 2B by introducing the p...
October 6, 2016: JCI Insight
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