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https://www.readbyqxmd.com/read/28928999/acquired-vitamin-k-deficiency-as-unusual-cause-of-bleeding-tendency-in-adults-a-case-report-of-a-nonhospitalized-student-presenting-with-severe-menorrhagia
#1
Omid Reza Zekavat, Gholamreza Fathpour, Sezaneh Haghpanah, Seyed Javad Dehghani, Maryam Zekavat, Nader Shakibazad
We report a rare case of acquired vitamin K deficiency presenting with severe menorrhagia and without any gynecological problem. Partial thromboplastin time (59.2 seconds) and prothrombin time (33.1 seconds, INR: 5.97) were considerably prolonged in laboratory evaluations. A complete coagulation factor assay test was performed for the patient: factor IX, 24%; factor II, 41%; factor VII, 3%; and factor X, 52%. She had been taking many high-energy drinks and she had inadequate dietary intake for the past 6 months...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28924539/genetic-polymorphisms-of-hemostatic-factors-and-thrombotic-risk-in-non-bcr-abl-myeloproliferative-neoplasms-a-pilot-study
#2
R Dambrauskienė, R Gerbutavičius, R Ugenskienė, R Jankauskaitė, A Savukaitytė, R Šimoliūnienė, M Rudžianskienė, R Gerbutavičienė, E Juozaitytė
The most important complications of Philadelphianegagive (non BCR-ABL) myeloproliferative neoplasms (MPNs) are vascular events. Our aim was to evaluate the effects of single nucleotide polymorphisms (SNPs), platelet glycoproteins (GPs) (Ia/IIa, Ibα, IIb/IIIa and VI), von Willebrand factor (vWF), coagulation factor VII (FVII), β-fibrinogen, and the risk of thrombosis in patients with non BCR-ABL MPNs at the Lithuanian University of Health Sciences. Kaunas, Lithuania. Genotyping was done for 108 patients. The TT genotype of the GP Ia/IIa c...
June 30, 2017: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/28921441/purification-and-autoactivation-method-for-recombinant-coagulation-factor-vii
#3
Vladimir Granovski, Marcela C C Freitas, Mario Soares Abreu-Neto, Dimas T Covas
Recombinant coagulation factor VII is a very important and complex protein employed for treatment of hemophiliac patients (hemophilia A/B) who develop inhibitors antibodies to conventional treatments (FVIII and FIX). The rFVII is a glycosylated molecule and circulates in plasma as zymogen of 50 kDa. When activated the molecule is cleaved to 20-30 kDa and has a half-life of about 3 h, needing to be processed fast and efficiently until freeze-drying. Here, we describe a very simple and fast purification sequence for rFVII using affinity FVII Select resin and a dialysis system that can be easily scaled up...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28921427/human-cells-as-platform-to-produce-gamma-carboxylated-proteins
#4
Aline de Sousa Bomfim, Marcela Cristina Corrêa de Freitas, Dimas Tadeu Covas, Elisa Maria de Sousa Russo
The gamma-carboxylated proteins belong to a family of proteins that depend on vitamin K for normal biosynthesis. The major representative gamma-carboxylated proteins are the coagulation system proteins, for example, factor VII, factor IX, factor X, prothrombin, and proteins C, S, and Z. These molecules have harbored posttranslational modifications, such as glycosylation and gamma-carboxylation, and for this reason they need to be produced in mammalian cell lines. Human cells lines have emerged as the most promising alternative to the production of gamma-carboxylated proteins...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28912831/genome-sequencing-and-transcriptome-analysis-of-trichoderma-reesei-qm9978-strain-reveals-a-distal-chromosome-translocation-to-be-responsible-for-loss-of-vib1-expression-and-loss-of-cellulase-induction
#5
Christa Ivanova, Jonas Ramoni, Thiziri Aouam, Alexa Frischmann, Bernhard Seiboth, Scott E Baker, Stéphane Le Crom, Sophie Lemoine, Antoine Margeot, Frédérique Bidard
BACKGROUND: The hydrolysis of biomass to simple sugars used for the production of biofuels in biorefineries requires the action of cellulolytic enzyme mixtures. During the last 50 years, the ascomycete Trichoderma reesei, the main source of industrial cellulase and hemicellulase cocktails, has been subjected to several rounds of classical mutagenesis with the aim to obtain higher production levels. During these random genetic events, strains unable to produce cellulases were generated...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28904900/advance-male-sling
#6
REVIEW
Amanda S J Chung, Oscar A Suarez, Kurt A McCammon
The AdVance sling (American Medical Systems, Minnetonka, MN, United States of America) is a synthetic transobturator sling, which is a safe and effective minimally invasive treatment for mild to moderate stress urinary incontinence (SUI) in male patients. This article provides a step-by-step description of our technique for placement of the AdVance male sling, including details and nuances gained from surgical experience, advice for avoidance of complications and discussion on management of complications and sling failures...
August 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28904675/von-willebrand-s-disease-case-report-and-review-of-literature
#7
Hanae Echahdi, Brahim El Hasbaoui, Mohamed El Khorassani, Aomar Agadr, Mohamed Khattab
Von Willebrand Disease (VWD) is the most common human inherited bleeding disorder due to a defect of Von Willebrand Factor (VWF), which a glycoprotein crucial for platelet adhesion to the subendothelium after vascular injury. VWD include quantitative defects of VWF, either partial (type 1 with VWF levels < 50 IU/dL) or virtually total (type 3 with undetectable VWF levels) and also qualitative defects of VWF (type 2 variants with discrepant antigenic and functional VWF levels). The most bleeding forms of VWD usually do not concern type 1 patients with the mildest VWF defects (VWF levels between 30 and 50IU/dL)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28902922/molecular-clustering-of-patients-with-diabetes-and-pulmonary-tuberculosis-a-systematic-review-and-meta-analysis
#8
Francles Blanco-Guillot, Guadalupe Delgado-Sánchez, Norma Mongua-Rodríguez, Pablo Cruz-Hervert, Leticia Ferreyra-Reyes, Elizabeth Ferreira-Guerrero, Mercedes Yanes-Lane, Rogelio Montero-Campos, Miriam Bobadilla-Del-Valle, Pedro Torres-González, Alfredo Ponce-de-León, José Sifuentes-Osornio, Lourdes Garcia-Garcia
INTRODUCTION: Many studies have explored the relationship between diabetes mellitus (DM) and tuberculosis (TB) demonstrating increased risk of TB among patients with DM and poor prognosis of patients suffering from the association of DM/TB. Owing to a paucity of studies addressing this question, it remains unclear whether patients with DM and TB are more likely than TB patients without DM to be grouped into molecular clusters defined according to the genotype of the infecting Mycobacterium tuberculosis bacillus...
2017: PloS One
https://www.readbyqxmd.com/read/28881271/factor-vii-activating-protease-fsap-regulates-the-expression-of-inflammatory-genes-in-vascular-smooth-muscle-and-endothelial-cells
#9
Kristina Byskov, Thomas Boettger, Paul F Ruehle, Nis Valentin Nielsen, Michael Etscheid, Sandip M Kanse
BACKGROUND AND AIMS: The factor VII activating protease (FSAP) knockout mice have a bigger neointima after vascular injury and a larger infarct volume after stroke. The Marburg I (MI) single nucleotide polymorphism (SNP) in the FSAP-encoding gene is associated with an increased risk of stroke and carotid stenosis in humans. We hypothesize that the regulation of gene expression by FSAP in vascular cells accounts for its vasculo-regulatory properties. METHODS: Vascular smooth muscle cells (VSMC) and endothelial cells (EC) were stimulated with FSAP and a microarray-based expression analysis was performed...
August 25, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28875494/abundance-of-small-mammals-in-the-atlantic-forest-asmaf-a-data-set-for-analyzing-tropical-community-patterns
#10
Marcos S L Figueiredo, Camila S Barros, Ana C Delciellos, Edú B Guerra, Pedro Cordeiro-Estrela, Maja Kajin, Martin R Alvarez, Paulo H Asfora, Diego Astúa, Helena G Bergallo, Rui Cerqueira, Lena Geise, Rosana Gentile, Carlos Eduardo V Grelle, Gilson E Iack-Ximenes, Leonardo C Oliveira, Marcelo Weksler, Marcus V Vieira
Local abundance results from the interaction between populational and environmental processes. The abundance of the species in a community is also one of the most basic descriptors of its structure. Despite its importance, information about species abundances is fragmentary, creating a knowledge gap about species abundances known as Prestonian Shortfall. Here we present a comprehensive dataset of small mammal abundance in the Atlantic Forest. Data were extracted from 114 published sources and from unpublished data collected by our research groups spanning from 1943 to 2017...
September 6, 2017: Ecology
https://www.readbyqxmd.com/read/28874068/characterization-of-a-novel-viil-sub-genotype-of-newcastle-disease-virus-circulating-in-iran
#11
Fereshteh Sabouri, Mehdi Vasfi Marandi, Mohsen Bashashati
Newcastle disease (ND) is an economically important and highly contagious disease of wild and domestic avian species. Despite extensive vaccination efforts of industrial poultry, Newcastle disease virus (NDV) outbreaks causing significant economic losses still occur. Rural chickens may act as a potential reservoir of NDVs for commercial poultry due to poor biosecurity and inadequate vaccination. The aim of this study was to investigate phylogenetic relationship and molecular characterization of eight NDVs isolated from backyard poultry during 2011-2013...
September 6, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28867804/fviia-stf-and-thrombin-inhibitory-activities-of-compounds-isolated-from-microcystis-aeruginosa-k-139
#12
Andrea Roxanne J Anas, Akane Mori, Mineka Tone, Chiaki Naruse, Anna Nakajima, Hirohiko Asukabe, Yoshiaki Takaya, Susumu Y Imanishi, Tomoyasu Nishizawa, Makoto Shirai, Ken-Ichi Harada
The rise of bleeding and bleeding complications caused by oral anticoagulant use are serious problems nowadays. Strategies that block the initiation step in blood coagulation involving activated factor VII-tissue factor (fVIIa-TF) have been considered. This study explores toxic Microcystis aeruginosa K-139, from Lake Kasumigaura, Ibaraki, Japan, as a promising cyanobacterium for isolation of fVIIa-sTF inhibitors. M. aeruginosa K-139 underwent reversed-phase solid-phase extraction (ODS-SPE) from 20% MeOH to MeOH elution with 40%-MeOH increments, which afforded aeruginosin K-139 in the 60% MeOH fraction; micropeptin K-139 and microviridin B in the MeOH fraction...
August 30, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28864539/signals-from-the-adipose-microenvironment-and-the-obesity-cancer-link-a-systematic-review
#13
REVIEW
Caroline Himbert, Mahmoud Delphan, Dominique Scherer, Laura W Bowers, Stephen Hursting, Cornelia M Ulrich
Obesity and its associated metabolic dysregulation are established risk factors for many cancers. However, the biologic mechanisms underlying this relationship remain incompletely understood. Given the rising rates of both obesity and cancer worldwide, and the challenges for many people to lose excess adipose tissue, a systematic approach to identify potential molecular and metabolic targets is needed to develop effective mechanism-based strategies for the prevention and control of obesity-driven cancer. Epidemiologic, clinical, and preclinical data suggest that within the growth-promoting, proinflammatory microenvironment accompanying obesity, crosstalk between adipose tissue (comprised of adipocytes, macrophages and other cells) and cancer-prone cells may occur via obesity-associated hormones, cytokines, and other mediators that have been linked to increased cancer risk and/or progression...
September 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28860539/hypoxia-induces-cancer-associated-camp-pka-signalling-through-hif-mediated-transcriptional-control-of-adenylyl-cyclases-vi-and-vii
#14
Veronika Simko, Filippo Iuliano, Andrea Sevcikova, Martina Labudova, Monika Barathova, Peter Radvak, Silvia Pastorekova, Jaromir Pastorek, Lucia Csaderova
Hypoxia is a phenomenon often arising in solid tumours, linked to aggressive malignancy, bad prognosis and resistance to therapy. Hypoxia-inducible factor-1 has been identified as a key mediator of cell and tissue adaptation to hypoxic conditions through transcriptional activation of many genes involved in glucose metabolism and other cancer-related processes, such as angiogenesis, cell survival and cell invasion. Cyclic adenosine 3'5'-monophosphate is one of the most ancient and evolutionarily conserved signalling molecules and the cAMP/PKA signalling pathway plays an important role in cellular adaptation to hypoxia...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28844009/anatomical-and-electrophysiological-characterization-of-a-population-of-di6-interneurons-in-the-neonatal-mouse-spinal-cord
#15
Anna Griener, Wei Zhang, Henry Kao, Farhia Haque, Simon Gosgnach
The locomotor central pattern generator is a neural network located in the ventral aspect of the caudal spinal cord that underlies stepping in mammals. While many genetically defined interneurons that are thought to comprise this neural network have been identified and characterized, the dI6 cells- which express the transcription factors WT1 and/or DMRT3- are one population that settle in this region, are active during locomotion, whose function is poorly understood. These cells were originally hypothesized to be commissural premotor interneurons, however evidence in support of this is sparse...
August 24, 2017: Neuroscience
https://www.readbyqxmd.com/read/28834159/a-novel-protein-c-factor-vii-chimera-provides-new-insights-into-the-structural-requirements-for-cytoprotective-par1-signaling
#16
Eimear M Gleeson, Cormac J McDonnell, Erin E Soule, Orla Willis Fox, Hannah Rushe, Aisling Rehill, Owen P Smith, James S O'Donnell, Roger J S Preston
BACKGROUND: Activated protein C (APC) cell signaling is largely reliant upon its ability to mediate protease-activated receptor 1 (PAR1) proteolysis when bound to the endothelial cell protein C receptor (EPCR). Furthermore, EPCR-bound PC modulates PAR1 signaling by thrombin to induce APC-like endothelial cell (EC) cytoprotection. OBJECTIVE: The molecular determinants of EPCR-dependent cytoprotective PAR1 signaling remain poorly defined. To address this, a PC-factor VII (FVII) chimera (PC(FVII)(-82) ) possessing FVII N-terminal domains and conserved EPCR binding was characterized...
August 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28833085/development-of-a-strategy-and-computational-application-to-select-candidate-protein-analogs-with-reduced-hla-binding-and-immunogenicity
#17
Sandeep Kumar Dhanda, Alba Grifoni, John Pham, Kerrie Vaughan, John Sidney, Bjoern Peters, Alessandro Sette
Unwanted immune responses against protein therapeutics can reduce efficacy or lead to adverse reactions. T cell responses are key in the development of such responses, and are directed against immunodominant regions within the protein sequence, often associated with binding to several allelic variants of HLA class II molecules (promiscuous binders). Herein, we report a novel computational strategy to predict 'deimmunized' peptides, based on previous studies of erythropoietin (EPO) protein immunogenicity. This algorithm (or method) first predicts promiscuous binding regions within the target protein sequence and then identifies residue substitutions predicted to reduce HLA binding...
August 22, 2017: Immunology
https://www.readbyqxmd.com/read/28832604/soil-iron-and-aluminium-concentrations-and-feet-hygiene-as-possible-predictors-of-podoconiosis-occurrence-in-kenya
#18
Jacinta Muli, John Gachohi, Jim Kagai
BACKGROUND: Podoconiosis (mossy foot) is a neglected non-filarial elephantiasis considered to be caused by predisposition to cumulative contact of uncovered feet to irritative red clay soil of volcanic origins in the tropical regions. Data from structured observational studies on occurrence of Podoconiosis and related factors are not available in Kenya. METHODOLOGY/PRINCIPAL FINDINGS: To establish the occurrence and aspects associated with Podoconiosis, a cross-sectional survey was implemented in an area located within 30 km from the foot of volcanic Mount Longonot in the Great Rift Valley in Kenya...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28829495/the-expression-and-mechanism-of-bdnf-and-ngb-in-perihematomal-tissue-in-rats-with-intracerebral-hemorrhage
#19
Y-C Guo, X-K Song, Y-F Xu, J-B Ma, J-J Zhang, P-J Han
OBJECTIVE: To analyze how changes in the levels of brain-derived neurotrophic factor (BDNF) and neuroglobin (NGB) affect learning and memory in rats with intracerebral hemorrhage. MATERIALS AND METHODS: Thirty male Sprague-Dawley rats were randomly divided into the control group, sham operation group and model group with 10 rats each. The rats in the control group were untreated, while those in the sham operation group were treated with sterile saline instead of type VII collagenase injection in the globus pallidus...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28821283/gene-expression-profiling-of-idiopathic-interstitial-pneumonias-iips-identification-of-potential-diagnostic-markers-and-therapeutic-targets
#20
Yasushi Horimasu, Nobuhisa Ishikawa, Masaya Taniwaki, Kakuhiro Yamaguchi, Kosuke Hamai, Hiroshi Iwamoto, Shinichiro Ohshimo, Hironobu Hamada, Noboru Hattori, Morihito Okada, Koji Arihiro, Yuji Ohtsuki, Nobuoki Kohno
BACKGROUND: Chronic fibrosing idiopathic interstitial pneumonia (IIP) is characterized by alveolar epithelial damage, activation of fibroblast proliferation, and loss of normal pulmonary architecture and function. This study aims to investigate the genetic backgrounds of IIP through gene expression profiling and pathway analysis, and to identify potential biomarkers that can aid in diagnosis and serve as novel therapeutic targets. METHODS: RNA extracted from lung specimens of 12 patients with chronic fibrosing IIP was profiled using Illumina Human WG-6 v3 BeadChips, and Ingenuity Pathway Analysis was performed to identify altered functional and canonical signaling pathways...
August 18, 2017: BMC Medical Genetics
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