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https://www.readbyqxmd.com/read/28647684/dynamics-of-helicobacter-pylori-infection-as-a-determinant-of-progression-of-gastric-precancerous-lesions-16-year-follow-up-of-an-eradication-trial
#1
Robertino M Mera, Luis E Bravo, M Constanza Camargo, Juan C Bravo, Alberto G Delgado, Judith Romero-Gallo, Maria C Yepez, José L Realpe, Barbara G Schneider, Douglas R Morgan, Richard M Peek, Pelayo Correa, Keith T Wilson, M Blanca Piazuelo
OBJECTIVE: To evaluate the long-term effect of cumulative time exposed to Helicobacter pylori infection on the progression of gastric lesions. DESIGN: 795 adults with precancerous gastric lesions were randomised to receive anti-H. pylori treatment at baseline. Gastric biopsies were obtained at baseline and at 3, 6, 12 and 16 years. A total of 456 individuals attended the 16-year visit. Cumulative time of H. pylori exposure was calculated as the number of years infected during follow-up...
June 24, 2017: Gut
https://www.readbyqxmd.com/read/28647574/a-rare-uterine-malformation-asymmetric-septate-uterus
#2
Alper Biler, Ali Akdemir, Nuri Peker, Fatih Sendag
STUDY OBJECTIVE: To demonstrate a step by step surgical hysteroscopy technique in a patient with asymmetric uterine septum and transverse uterine septum that was not previously described in the literature. DESIGN: Resection of a asymmetric uterine septum by laparoscopy and ultrasound-guided hysteroscopy (Canadian Task Force Classification III). The video was assumed exempt from official review by our institutional review board. SETTING: A septate uterus is defined as the uterus in which the uterine cavity is longitudinally divided by the septum (1)...
June 21, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28647517/proteomics-to-study-macrophage-response-to-viral-infection
#3
Tuula A Nyman, Sampsa Matikainen
Viral infections are a major burden to human and animal health. Immune response against viruses consists of innate and adaptive immunity which are both critical for the eradication of the viral infection. The innate immune system is the first line of defense against viral infections. Proper innate immune response is required for the activation of adaptive, humoral and cell-mediated immunity. Macrophages are innate immune cells which have a central role in detecting viral infections including influenza A and human immunodeficiency viruses...
June 21, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28647502/alternative-complement-pathway-hemolytic-assays-reveal-incomplete-complement-blockade-in-patients-treated-with-eculizumab
#4
Bénédicte Puissant-Lubrano, Sylvain Puissochet, Nicolas Congy-Jolivet, Dominique Chauveau, Stéphane Decramer, Arnaud Garnier, Antoine Huart, Nassim Kamar, David Ribes, Antoine Blancher
Eculizumab is a monoclonal anti-C5 antibody used in the treatment of atypical hemolytic uremic syndrome (aHUS). We monitored complement inhibition in 16 eculizumab-treated patients suffering from HUS or transplant rejection (not aHUS patients). Blood samples were obtained one to four weeks after the last eculizumab injection. We observed that eculizumab efficiently blocked the terminal pathway (TP) through classical pathway (CP) activation measured by kinetic hemolytic assay (HA) (<10%) but incompletely blocked the TP through alternative pathway (AP) activation measured by rabbit (APH50>23%) or chicken erythrocytes HA (AP100>15%)...
June 21, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28647490/sex-biased-eicosanoid-biology-impact-for-sex-differences-in-inflammation-and-consequences-for-pharmacotherapy
#5
REVIEW
Simona Pace, Lidia Sautebin, Oliver Werz
The incidence, severity and progression of autoimmune diseases (e.g. scleroderma, multiple sclerosis, rheumatoid arthritis) and certain inflammatory diseases (e.g. asthma) are sex-biased where these pathologies dominate in women. However, other immune disorders such as sepsis, post-surgery infections and gout display higher incidence and severity in men. The molecular and cellular basis underlying this sex dimorphism remains incompletely elucidated but may provide important insights for sex-specific pharmacotherapy...
June 21, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28647417/recurrent-thromboembolic-events-after-ischemic-stroke-in-patients-with-primary-brain-tumors
#6
Neal S Parikh, Jaclyn E Burch, Hooman Kamel, Lisa M DeAngelis, Babak B Navi
BACKGROUND: Stroke mechanisms and the risk of recurrent thromboembolism are incompletely understood in patients with primary brain tumors. We sought to better delineate these important clinical features. METHODS: We performed a retrospective cohort study of adults with primary brain tumors diagnosed with magnetic resonance imaging-confirmed acute ischemic stroke at the Memorial Sloan Kettering Cancer Center from 2005 to 2015. Study neurologists collected data on patients' cancer history, stroke risk factors, treatments, and outcomes...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647136/polypectomy-for-the-complete-endoscopic-resection-of-small-colorectal-polyps
#7
Qisheng Zhang, Peng Gao, Bin Han, Jianhua Xu, Yucui Shen
BACKGROUND AND AIMS: Small colorectal polyps are frequently encountered and may be incompletely removed during colonoscopy. The optimal technique for removal of small colorectal polyps is uncertain. The aim of this study was to compare the incomplete resection rate (IRR) using endoscopic mucosal resection (EMR) or cold snare polypectomy (CSP) for the removal of small adenomatous polyps. METHODS: This was a prospective randomized controlled study from a tertiary referral center...
June 21, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28646775/consequences-of-intensive-forest-harvesting-on-the-recovery-of-swedish-lakes-from-acidification-and-on-critical-load-exceedances
#8
Filip Moldan, Johanna Stadmark, Jens Fölster, Sara Jutterström, Martyn N Futter, Bernard J Cosby, Richard F Wright
Across much of the northern hemisphere, lakes are at risk of re-acidification due to incomplete recovery from historical acidification and pressures associated with more intensive forest biomass harvesting. Critical load (CL) calculations aimed at estimating the amount of pollutants an ecosystem can receive without suffering adverse consequences are dependent on these factors. Here, we present a modelling study of the potential effects of intensified forest harvesting on re-acidification of a set of 3239 Swedish lakes based on scenarios with varying intensities of forest biomass harvest and acid deposition...
June 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28646743/analysis-of-ictal-magnetoencephalography-using-gradient-magnetic-field-topography-gmft-in-patients-with-neocortical-epilepsy
#9
Hiroshi Shirozu, Akira Hashizume, Hiroshi Masuda, Yosuke Ito, Yoko Nakayama, Takefumi Higashijima, Masafumi Fukuda, Shigeki Kameyama
OBJECTIVE: We aimed to validate the usefulness of gradient magnetic-field topography (GMFT) for analysis of ictal magnetoencephalography (MEG) in patients with neocortical epilepsy. METHODS: We identified 13 patients presenting with an ictal event during preoperative MEG. We applied equivalent current dipole (ECD) estimation and GMFT to detect and localize the ictal MEG onset, and compared these methods with the ictal onset zone (IOZ) derived from chronic intracranial electroencephalography...
June 7, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28646512/wmj-8-b-a-novel-hydroxamate-derivative-induces-mda-mb-231-breast-cancer-cell-death-via-shp-1-stat3-survivin-cascade
#10
Yu-Fan Chuang, Shiu-Wen Huang, Ya-Fen Hsu, Meng-Chieh Yu, George Ou, Wei-Jan Huang, Ming-Jen Hsu
BACKGROUND AND PURPOSE: Histone deacetylase (HDAC) inhibitors with broad-spectrum anti-tumor properties has been described and attracted lots of attention in the field of drug discovery. However, the underlying anti-tumor mechanisms of HDAC inhibitors remain incompletely understood. In this study, we aimed to characterize the underlying mechanisms of a novel hydroxamate-based HDAC inhibitor, WMJ-8-B, in inducing MDA-MB-231 breast cancer cell death. EXPERIMENTAL APPROACH: WMJ-8-B's effects on cell viability, cell cycle distribution, apoptosis, as well as signaling molecules modification and activation were analyzed by MTT assay, flowcytometric analysis, immunoblotting, reporter assay, ChIP analysis and siRNA strategy...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28646464/early-retreatment-after-surgical-clipping-of-ruptured-intracranial-aneurysms
#11
Yoshiro Ito, Tetsuya Yamamoto, Go Ikeda, Wataro Tsuruta, Kazuya Uemura, Yoji Komatsu, Akira Matsumura
BACKGROUND: Although a rerupture after surgical clipping of ruptured intracranial aneurysms is rare, it is associated with high morbidity and mortality. The causes for retreatment and rupture after surgical clipping are not clearly defined. METHODS: From a prospectively maintained database of 244 patients who had undergone surgical clipping of ruptured intracranial aneurysms, we selected patients who experienced retreatment or rerupture within 30 days after surgical clipping...
June 23, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28646219/efficient-and-unbiased-metagenomic-recovery-of-rna-virus-genomes-from-human-plasma-samples
#12
Carmen F Manso, David F Bibby, Jean L Mbisa
RNA viruses cause significant human pathology and are responsible for the majority of emerging zoonoses. Mainstream diagnostic assays are challenged by their intrinsic diversity, leading to false negatives and incomplete characterisation. New sequencing techniques are expanding our ability to agnostically interrogate nucleic acids within diverse sample types, but in the clinical setting are limited by overwhelming host material and ultra-low target frequency. Through selective host RNA depletion and compensatory protocol adjustments for ultra-low RNA inputs, we are able to detect three major blood-borne RNA viruses - HIV, HCV and HEV...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646114/staphylococcus-aureus-strain-newman-photoinactivation-and-cellular-response-to-sunlight-exposure
#13
Jill S McClary, Lauren M Sassoubre, Alexandria B Boehm
Sunlight influences microbial water quality of surface waters. Previous studies have investigated photoinactivation mechanisms and cellular photostress responses of fecal indicator bacteria (FIB), including Escherichia coli and enterococci, but further work is needed to characterize photostress responses of bacterial pathogens. Here we investigate the photoinactivation of Staphylococcus aureus (strain Newman), a pigmented, waterborne pathogen of emerging concern. We measured photodecay using standard culture-based assays and cellular membrane integrity; and investigated photostress response by measuring the relative number of mRNA transcripts of select oxidative stress, DNA repair, and metabolism genes...
June 23, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28645875/high-resolution-igh-repertoire-analysis-reveals-fetal-liver-as-the-origin-of-life-long-innate-b-lymphopoiesis-in-humans
#14
Anindita Roy, Vojtech Bystry, Georg Bohn, Katerina Goudevenou, Tomas Reigl, Maria Papaioannou, Adam Krejci, Sorcha O'Byrne, Aristeidis Chaidos, Andrea Grioni, Nikos Darzentas, Irene A G Roberts, Anastasios Karadimitris
The ontogeny of the natural, public IgM repertoire remains incompletely explored. Here, high-resolution immunogenetic analysis of B cells from (unrelated) fetal, child, and adult samples, shows that although fetal liver (FL) and bone marrow (FBM) IgM repertoires are equally diversified, FL is the main source of IgM natural immunity during the 2nd trimester. Strikingly, 0.25% of all prenatal clonotypes, comprising 18.7% of the expressed repertoire, are shared with the postnatal samples, consistent with persisting fetal IgM+ B cells being a source of natural IgM repertoire in adult life...
June 20, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28645776/selective-inhibition-of-flt3-by-gilteritinib-in-relapsed-or-refractory-acute-myeloid-leukaemia-a-multicentre-first-in-human-open-label-phase-1-2-study
#15
Alexander E Perl, Jessica K Altman, Jorge Cortes, Catherine Smith, Mark Litzow, Maria R Baer, David Claxton, Harry P Erba, Stan Gill, Stuart Goldberg, Joseph G Jurcic, Richard A Larson, Chaofeng Liu, Ellen Ritchie, Gary Schiller, Alexander I Spira, Stephen A Strickland, Raoul Tibes, Celalettin Ustun, Eunice S Wang, Robert Stuart, Christoph Röllig, Andreas Neubauer, Giovanni Martinelli, Erkut Bahceci, Mark Levis
BACKGROUND: Internal tandem duplication mutations in FLT3 are common in acute myeloid leukaemia and are associated with rapid relapse and short overall survival. The clinical benefit of FLT3 inhibitors in patients with acute myeloid leukaemia has been limited by rapid generation of resistance mutations, particularly in codon Asp835 (D835). We aimed to assess the highly selective oral FLT3 inhibitor gilteritinib in patients with relapsed or refractory acute myeloid leukaemia. METHODS: In this phase 1-2 trial, we enrolled patients aged 18 years or older with acute myeloid leukaemia who either were refractory to induction therapy or had relapsed after achieving remission with previous treatment...
June 20, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28645768/robot-assisted-training-for-people-with-spinal-cord-injury-a-meta-analysis
#16
REVIEW
Eddy Yy Cheung, Thomas Kw Ng, Kevin Kk Yu, Rachel Lc Kwan, Gladys Ly Cheing
OBJECTIVE: To investigate the effects of robotic-assisted training on the recovery of people with spinal cord injury (SCI). DATA SOURCE: Randomized controlled trials (RCTs) or quasi-RCTs involving people with SCI that compared robotic-assisted upper limbs or lower limbs training to a control of other treatment approach or no treatment. We included studies involving people with complete or incomplete spinal cord injuries. STUDY SELECTION: We searched in Medline, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Central Register of Controlled Trials (Cochrane Library) and Excerpta Medica dataBASE (EMBASE) to August, 2016...
June 20, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28645767/assessing-the-potential-of-rad-sequencing-to-resolve-phylogenetic-relationships-within-species-radiations-the-fly-genus-chiastocheta-diptera-anthomyiidae-as-a-case-study
#17
Tomasz Suchan, Anahí Espíndola, Sereina Rutschmann, Brent C Emerson, Kevin Gori, Christophe Dessimoz, Nils Arrigo, Michał Ronikier, Nadir Alvarez
Determining phylogenetic relationships among recently diverged species has long been a challenge in evolutionary biology. Cytoplasmic markers, which have been widely used notably in the context of molecular barcoding, have not always proved successful in resolving such phylogenies, but phylogenies for closely related species have been resolved at a much higher detail in the last couple of years with the advent of next-generation-sequencing technologies and associated techniques of reduced genome representation...
June 20, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28645655/5-lipoxygenase-in-monocytes-emerges-as-a-therapeutic-target-for-intimal-hyperplasia-in-a-murine-wire-injured-femoral-artery
#18
Seung Eun Baek, Min A Jang, Seung Jin Lee, So Youn Park, Sun Sik Bae, Chi Dae Kim
Given the importance of leukotrienes in vascular inflammation induced by local tissue injury, this study investigated the role for 5-lipoxygenase (5-LO) in monocytes in the development of intimal hyperplasia. As a mechanistic study, the importance of monocyte 5-LO in monocyte-macrophage differentiation with subsequent infiltration in neointima was evaluated. In a mouse model of wire-injured femoral artery, intimal hyperplasia started as early as 2 wks after injury, and luminal area and blood flow were reduced due to increased neointima formation...
June 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28645462/analgosedation-practices-and-the-impact-of-sedation-depth-on-clinical-outcomes-among-patients-requiring-mechanical-ventilation-in-the-emergency-department-a-cohort-study
#19
Robert J Stephens, Enyo Ablordeppey, Anne M Drewry, Christopher Palmer, Brian T Wessman, Nicholas M Mohr, Brian W Roberts, Stephen Y Liang, Marin H Kollef, Brian M Fuller
BACKGROUND: Analgesia and sedation are cornerstone therapies for mechanically ventilated patients. Despite data showing that early deep sedation in the intensive care unit influences outcome, this has not been investigated in the emergency department (ED). Therefore, ED-based sedation practices, and their influence on outcome, remain incompletely defined. This study's objectives were to describe ED sedation practices in mechanically ventilated patients, and to test the hypothesis that ED sedation depth is associated with worse outcomes METHODS: This was a cohort study on a prospectively compiled ED registry of adult, mechanically ventilated patients at a single academic medical center...
June 20, 2017: Chest
https://www.readbyqxmd.com/read/28645285/completeness-and-timeliness-of-notifiable-disease-reporting-a-comparison-of-laboratory-and-provider-reports-submitted-to-a-large-county-health-department
#20
Brian E Dixon, Zuoyi Zhang, Patrick T S Lai, Uzay Kirbiyik, Jennifer Williams, Rebecca Hills, Debra Revere, P Joseph Gibson, Shaun J Grannis
BACKGROUND: Most public health agencies expect reporting of diseases to be initiated by hospital, laboratory or clinic staff even though so-called passive approaches are known to be burdensome for reporters and produce incomplete as well as delayed reports, which can hinder assessment of disease and delay recognition of outbreaks. In this study, we analyze patterns of reporting as well as data completeness and timeliness for traditional, passive reporting of notifiable disease by two distinct sources of information: hospital and clinic staff versus clinical laboratory staff...
June 23, 2017: BMC Medical Informatics and Decision Making
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