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https://www.readbyqxmd.com/read/29156792/liquid-biopsy-in-colon-cancer-comparison-of-different-circulating-dna-extraction-systems-following-absolute-quantification-of-kras-mutations-using-intplex-allele-specific-pcr
#1
Vera Kloten, Nadine Rüchel, Nadina Ortiz Brüchle, Janina Gasthaus, Nils Freudenmacher, Florian Steib, Jolein Mijnes, Julian Eschenbruch, Marcel Binnebösel, Ruth Knüchel, Edgar Dahl
Non-invasive molecular analysis of circulating tumor DNA (ctDNA) is a promising application in personalized cancer management, although there is still much to learn about the biological characteristics of ctDNA. The present study compared absolute amounts of KRAS mutated ctDNA and total circulating cell-free DNA (cfDNA) in colorectal cancer (CRC) patients (n=50) from various stages and healthy controls (n=8) by Intplex allele-specific and digital droplet PCR. In addition, the impact of two prominent extraction techniques (silica-based membrane vs...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156234/candida-albicans-epithelial-interactions-and-induction-of-mucosal-innate-immunity
#2
REVIEW
Julian R Naglik, Annika König, Bernhard Hube, Sarah L Gaffen
Candida albicans is a human fungal pathogen that causes millions of mucosal and life-threatening infections annually. C. albicans initially interacts with epithelial cells, resulting in fungal recognition and the formation of hyphae. Hypha formation is critical for host cell damage and immune activation, which are both driven by the secretion of Candidalysin, a recently discovered peptide toxin. Epithelial activation leads to the production of inflammatory mediators that recruit innate immune cells including neutrophils, macrophages and innate Type 17 cells, which together work with epithelial cells to clear the fungal infection...
November 17, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29155998/limited-impact-of-adolescent-meningococcal-acwy-vaccination-on-group-w-carriage-in-university-students
#3
Neil J Oldfield, Luke R Green, Julian Parkhill, Christopher D Bayliss, David P J Turner
Background: In the UK rising disease levels due to Neisseria meningitidis serogroup W clonal complex ST-11 (MenW:cc11) strains led to introduction of conjugate MenACWY vaccination for teenagers. We investigated the impact of immunization on carriage of targeted meningococci by whole genome sequencing of isolates recovered from a cohort of vaccinated university students. Methods: Strain designation data were extracted from whole genome sequence data. Genomes from carried and invasive MenW:cc11 were compared using a gene-by-gene approach...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29155566/structure-based-insights-into-dynamics-and-function-of-two-domain-slpa-from-escherichia-coli
#4
Anne-Juliane Geitner, Ulrich Weininger, Hauke Paulsen, Jochen Balbach, Michael Kovermann
SlpA (SlyD like protein A) comprises two domains, a FK506 binding domain (FKBP fold) of moderate prolyl cis/trans isomerase activity and an inserted in flap (IF) domain that hosts its chaperone activity. Here we present the NMR solution structure of apo E. coli SlpA determined by NMR which mirrors the structural properties seen for various SlyD homologs. Crucial structural differences in side-chain orientation arise for F37 which points directly into the hydrophobic core of the active site. It forms a prominent aromatic stacking with F15, one of the key residues for PPIase activity, thus giving a possible explanation for the inherently low PPIase activity of SlpA...
November 20, 2017: Biochemistry
https://www.readbyqxmd.com/read/29155516/association-of-il-12bpro-polymorphism-with-tumor-infiltrating-dendritic-cells-in-colorectal-cancer
#5
Elina Aleksandrova, Tatyana Vlaykova, Julian Ananiev, Maya Gulubova
PURPOSE: Chronic inflammation is a key component in the development and progression of colorectal cancer (CRC). A notable hallmark of the inflammation process is the release of pro-inflammatory cytokines by infiltrating cells of the immune system. Defects in dendritic cells (DCs) recruitment, maturation and cytokine release are a hallmark of the CRC strategy to escape immune surveillance.The purpose of our study was to evaluate the possible role of IL-12B polymorphism in the promoter region of the IL-12B gene (rs17860508) as a genetic factor contributing to the risk for CRC development...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29154565/exploring-the-idiographic-dynamics-of-mood-and-anxiety-via-network-analysis
#6
Aaron J Fisher, Jonathan W Reeves, Glenn Lawyer, John D Medaglia, Julian A Rubel
Individual variation is increasingly recognized as important to psychopathology research. Concurrently, new methods of analysis based on network models are bringing new perspectives on mental (dys)function. This current work analyzed idiographic multivariate time series data using a novel network methodology that incorporates contemporaneous and lagged associations in mood and anxiety symptomatology. Data were taken from 40 individuals with generalized anxiety disorder (GAD), major depressive disorder (MDD), or comorbid GAD and MDD, who answered questions about 21 descriptors of mood and anxiety symptomatology 4 times a day over a period of approximately 30 days...
November 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/29154126/the-wnt-inhibitor-apcdd1-coordinates-vascular-remodeling-and-barrier-maturation-of-retinal-blood-vessels
#7
Jenna Mazzoni, Julian R Smith, Sanjid Shahriar, Tyler Cutforth, Bernardo Ceja, Dritan Agalliu
Coordinating angiogenesis with acquisition of tissue-specific properties in endothelial cells is essential for vascular function. In the retina, endothelial cells form a blood-retina barrier by virtue of tight junctions and low transcytosis. While the canonical Norrin/Fz4/Lrp5/6 pathway is essential for angiogenesis, vascular remodeling, and barrier maturation, how these diverse processes are coordinated remains poorly understood. Here we demonstrate that Apcdd1, a negative regulator of Wnt/β-catenin signaling, is expressed in retinal endothelial cells during angiogenesis and barrier formation...
November 4, 2017: Neuron
https://www.readbyqxmd.com/read/29154031/preschool-children-adapt-grasping-movements-to-upcoming-object-manipulations-evidence-from-a-dial-rotation-task
#8
Oliver Herbort, Juliane Büschelberger, Markus Janczyk
In adults, the motor plans for object-directed grasping movements reflects the anticipated requirements of intended future object manipulations. This prospective mode of planning has been termed second-order planning. Surprisingly, second-order planning is thought to be fully developed only by 10 years of age, when children master seemingly more complex motor skills. In this study, we tested the hypothesis that already 5- and 6-year-old children consistently use second-order planning but that this ability does not become apparent in tasks that are traditionally used to probe it...
November 16, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/29153839/asymmetry-between-activation-and-deactivation-during-a-transcriptional-pulse
#9
Lee S S Dunham, Hiroshi Momiji, Claire V Harper, Polly J Downton, Kirsty Hey, Anne McNamara, Karen Featherstone, David G Spiller, David A Rand, Bärbel Finkenstädt, Michael R H White, Julian R E Davis
Transcription in eukaryotic cells occurs in gene-specific bursts or pulses of activity. Recent studies identified a spectrum of transcriptionally active "on-states," interspersed with periods of inactivity, but these "off-states" and the process of transcriptional deactivation are poorly understood. To examine what occurs during deactivation, we investigate the dynamics of switching between variable rates. We measured live single-cell expression of luciferase reporters from human growth hormone or human prolactin promoters in a pituitary cell line...
November 13, 2017: Cell Systems
https://www.readbyqxmd.com/read/29153358/impact-of-noise-optimized-virtual-monoenergetic-dual-energy-computed-tomography-on-image-quality-in-patients-with-renal-cell-carcinoma
#10
Simon S Martin, Julian L Wichmann, Sophia Pfeifer, Doris Leithner, Lukas Lenga, Michael A Reynolds, Tommaso D'Angelo, Renate Hammerstingl, Tatjana Gruber-Rouh, Thomas J Vogl, Moritz H Albrecht
OBJECTIVE: The aim of this study was to evaluate the impact of a noise-optimized virtual monoenergetic imaging (VMI+) reconstruction technique on image quality and lesion delineation in patients with renal cell carcinoma (RCC) undergoing abdominal dual-energy computed tomography (DECT). MATERIALS AND METHODS: Fifty-two patients (33 men; 61.5±13.6years) with RCC underwent contrast-enhanced DECT during the corticomedullary and nephrogenic phase of renal enhancement...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29152978/marginal-emissions-factors-for-electricity-generation-in-the-midcontinent-iso
#11
Maninder Pal Singh Thind, Elizabeth J Wilson, Ines M L Azevedo, Julian D Marshall
Environmental consequences of electricity generation are often determined using average emission factors. However, as different interventions are incrementally pursued in electricity systems, the resulting marginal change in emissions may differ from what one would predict based on system-average conditions. Here, we estimate average emission factors and marginal emission factors for CO2, SO2, and NOx from fossil and non-fossil generators in the Midcontinent Independent System Operator (MISO) region during years 2007 - 2016...
November 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29152973/epidermal-microfluidic-electrochemical-detection-system-enhanced-sweat-sampling-and-metabolite-detection
#12
Aida Martin, Jayoung Kim, Jonas F Kurniawan, Juliane R Sempionatto, Jose R Moreto, Guangda Tang, Alan C Campbell, Andrew Shin, Min Yul Lee, Xiaofeng Liu, Joseph Wang
Despite tremendous recent efforts, non-invasive sweat monitoring is still far from delivering its early analytical promise. Here, we describe a flexible epidermal microfluidic detection platform fabricated through hybridization of lithographic and screen-printed technologies for efficient sweat sampling and continuous real-time electrochemical monitoring of sweat glucose and lactate levels. This soft, skin-mounted device judiciously merges lab-on-a-chip and electrochemical detection technologies, integrated with a miniaturized flexible electronic board for real-time wireless data transmission to a smart device...
November 20, 2017: ACS Sensors
https://www.readbyqxmd.com/read/29152745/impact-of-an-oral-appliance-on-obstructive-sleep-apnea-severity-quality-of-life-and-biomarkers
#13
Enrique Fernández-Julián, Tomás Pérez-Carbonell, Rocío Marco, Verónica Pellicer, Enrique Rodriguez-Borja, Jaime Marco
OBJECTIVE/HYPOTHESIS: To investigate outcomes including efficacy, quality of life, and levels of inflammatory markers of a mandibular advancement device (MAD) for moderate-to-severe obstructive sleep apnea (OSA). STUDY DESIGN: Case-control study. METHODS: Patients with apnea-hypopnea index (AHI) ≥ 15/hr who only accepted MAD therapy (study group) or who refused any treatment (control group) were recruited. At baseline and at 6 months, polysomnography, Epworth Sleepiness Scale (ESS), Functional Outcomes of Sleep Questionnaire (FOSQ), C-reactive protein (CRP), interleukin 1β, interleukin 6, and tumor necrosis factor α (TNF-α) were assessed in both groups...
November 20, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29152430/a-dosimetric-comparison-of-intensity-modulated-proton-therapy-volumetric-modulated-arc-therapy-and-4%C3%AF-non-coplanar-intensity-modulated-radiation-therapy-for-a-patient-with-parameningeal-rhabdomyosarcoma
#14
Tiffany W Chen, Julian Sison, Becky Lee, Arthur J Olch, Andrew Chang, Annelise Giebeler, Kenneth Wong
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in children and manifests as two major histological subtypes: embryonal and alveolar. The five-year local failure rate for RMS at parameningeal sites (middle ear, mastoid region, nasal cavity, etc.) is around 17% despite multiple Intergroup Rhabdomyosarcoma Study Group (IRS) trials conducted to determine the optimal radiation treatment regimen. This case report explores the use of intensity-modulated proton therapy (IMPT) for a 10-year-old child who presented with left eye irritation, facial pain, and headaches and was found to have an alveolar parameningeal rhabdomyosarcoma...
September 10, 2017: Curēus
https://www.readbyqxmd.com/read/29152417/assessing-mongolian-gerbil-emotional-behavior-effects-of-two-shock-intensities-and-response-independent-shocks-during-an-extended-inhibitory-avoidance-task
#15
Camilo Hurtado-Parrado, Camilo González-León, Mónica A Arias-Higuera, Angelo Cardona, Lucia G Medina, Laura García-Muñoz, Christian Sánchez, Julián Cifuentes, Juan Carlos Forigua, Andrea Ortiz, Cesar A Acevedo-Triana, Javier L Rico
Despite step-down inhibitory avoidance procedures that have been widely implemented in rats and mice to study learning and emotion phenomena, performance of other species in these tasks has received less attention. The case of the Mongolian gerbil is of relevance considering the discrepancies in the parameters of the step-down protocols implemented, especially the wide range of foot-shock intensities (i.e., 0.4-4.0 mA), and the lack of information on long-term performance, extinction effects, and behavioral patterning during these tasks...
2017: PeerJ
https://www.readbyqxmd.com/read/29152132/high-baalc-copy-numbers-in-peripheral-blood-prior-to-allogeneic-transplantation-predict-early-relapse-in-acute-myeloid-leukemia-patients
#16
Madlen Jentzsch, Marius Bill, Juliane Grimm, Julia Schulz, Karoline Goldmann, Stefanie Beinicke, Janine Häntschel, Wolfram Pönisch, Georg-Nikolaus Franke, Vladan Vucinic, Gerhard Behre, Thoralf Lange, Dietger Niederwieser, Sebastian Schwind
High BAALC expression levels at acute myeloid leukemia diagnosis have been linked to adverse outcomes. Recent data indicate that high BAALC expression levels may also be used as marker for residual disease following acute myeloid leukemia treatment. Allogeneic hematopoietic stem cell transplantation (HSCT) offers a curative treatment for acute myeloid leukemia patients. However, disease recurrence remains a major clinical challenge and identification of high-risk patients prior to HSCT is crucial to improve outcomes...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151234/excavating-the-psyche-a-social-history-of-soviet-psychiatry-in-bulgaria
#17
Julian Chehirian
This article investigates how an imported Soviet psychiatric model affected Bulgarians who experienced psychological crisis by examining therapeutic possibilities that were available and foreclosed in the People's Republic of Bulgaria. Bulgarians struggling with psychological disorders in the present day experience polar forms of marginalization: non-recognition on one extreme, and chronic medicalization on the other. Both tendencies can be traced to the Communist-period remodeling of mental healthcare, which outlawed private practice and individual-centered therapy, which reified empirically observable, physiological underpinnings of pathology while suppressing therapies that engaged with the existential context of mental illness...
November 18, 2017: Culture, Medicine and Psychiatry
https://www.readbyqxmd.com/read/29151133/treatment-of-relapsed-aml-and-mds-after-allogeneic-stem-cell-transplantation-with-decitabine-and-dli-a-retrospective-multicenter-analysis-on-behalf-of-the-german-cooperative-transplant-study-group
#18
Thomas Schroeder, Christina Rautenberg, William Krüger, Uwe Platzbecker, Gesine Bug, Juliane Steinmann, Stefan Klein, Olaf Hopfer, Kathrin Nachtkamp, Mustafa Kondakci, Stefanie Geyh, Rainer Haas, Ulrich Germing, Martin Bornhäuser, Guido Kobbe
In contrast to the evidence regarding azacitidine (Aza), there is limited knowledge about the combination of decitabine (DAC) and donor lymphocyte infusions as salvage therapy for relapse after allogeneic stem cell transplantation (allo-SCT) so far. We retrospectively analyzed data of 36 patients with hematological (n = 35) or molecular relapse (n = 1) of acute myeloid leukemia (AML, n = 29) or myelodysplastic syndrome (MDS, n = 7) collected from 6 German transplant centers. Patients were treated with a median of 2 cycles DAC (range, 1 to 11)...
November 18, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29150860/quality-of-life-outcomes-after-subthalamic-stimulation-in-parkinson-s-disease-depends-on-age
#19
Haidar S Dafsari, Paul Reker, Lisa Stalinski, Monty Silverdale, Alexandra Rizos, Keyoumars Ashkan, Michael T Barbe, Gereon R Fink, Julian Evans, Julia Steffen, Michael Samuel, Till A Dembek, Veerle Visser-Vandewalle, Angelo Antonini, K Ray-Chaudhuri, Pablo Martinez-Martin, Lars Timmermann
OBJECTIVE: The purpose of this study was to investigate how quality of life outcome after bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) in Parkinson's disease (PD) depends on age. METHODS: In this prospective, open-label, multicenter study including 120 PD patients undergoing bilateral STN-DBS, we investigated the PDQuestionnaire-8 (PDQ-8), Unified PD Rating Scale-III, Scales for Outcomes in PD-motor examination, complications, activities of daily living, and levodopa equivalent daily dose preoperatively and at 5 months follow-up...
November 18, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29150513/high-prevalence-and-genetic-diversity-of-large-phicd211-phicdif1296t-like-prophages-in-clostridioides-difficile
#20
Julian R Garneau, Ognjen Sekulovic, Bruno Dupuy, Olga Soutourina, Marc Monot, Louis-Charles Fortier
Clostridioides difficile (formerly Clostridium difficile) is a pathogenic bacterium displaying great genetic diversity. A significant proportion of this diversity is due to the presence of integrated prophages. Here, we provide an in-depth analysis of phiCD211, also known as phiCDIF1296T, the largest phage identified in C. difficile so far, with a genome of 131-kbp. It shares morphological and genomic similarity with other large siphophages like phage 949 infecting Lactococcus lactis and phage c-st infecting Clostridium botulinum...
November 17, 2017: Applied and Environmental Microbiology
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