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https://www.readbyqxmd.com/read/28060806/high-throughput-sequencing-of-extracellular-rna-from-human-plasma
#1
Kirsty M Danielson, Renee Rubio, Fieda Abderazzaq, Saumya Das, Yaoyu E Wang
The presence and relative stability of extracellular RNAs (exRNAs) in biofluids has led to an emerging recognition of their promise as 'liquid biopsies' for diseases. Most prior studies on discovery of exRNAs as disease-specific biomarkers have focused on microRNAs (miRNAs) using technologies such as qRT-PCR and microarrays. The recent application of next-generation sequencing to discovery of exRNA biomarkers has revealed the presence of potential novel miRNAs as well as other RNA species such as tRNAs, snoRNAs, piRNAs and lncRNAs in biofluids...
2017: PloS One
https://www.readbyqxmd.com/read/28051988/ultraportable-oxygen-concentrator-use-in-u-s-army-special-operations-forward-area-surgery-a-proof-of-concept-in-multiple-environments
#2
Michael Rybak, Lynn C Huffman, Richard Nahouraii, John Loden, Marcos Gonzalez, Ramey Wilson, Paul D Danielson
INTRODUCTION: A limitation to surgical care in an austere environment is the supply of oxygen to support mechanical ventilation and general anesthesia. Portable oxygen concentrators (OCs) offer an alternative to traditional compressed oxygen tanks. OBJECTIVES: We set out to demonstrate that a low-pressure OC system could supply the mechanical ventilation needs in an austere operating environment. METHODS: An ultraportable OC (SAROS Model 3000, SeQual Technologies, Ball Ground, Georgia) was paired with an Impact 754 ventilator (Impact Instrumentation, West Caldwell, New Jersey) to evaluate the delivered fraction of inspired oxygen (FiO2) to a test lung across a range of minute ventilations and at altitudes of 1,200 and 6,500 feet above sea level...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28026154/surface-topography-and-mechanical-strain-promote-keratocyte-phenotype-and-extracellular-matrix-formation-in-a-biomimetic-3d-corneal-model
#3
Wei Zhang, Jialin Chen, Ludvig J Backman, Adam D Malm, Patrik Danielson
The optimal functionality of the native corneal stroma is mainly dependent on the well-ordered arrangement of extracellular matrix (ECM) and the pressurized structure. In order to develop an in vitro corneal model, it is crucial to mimic the in vivo microenvironment of the cornea. In this study, the influence of surface topography and mechanical strain on keratocyte phenotype and ECM formation within a biomimetic 3D corneal model is studied. By modifying the surface topography of materials, it is found that patterned silk fibroin film with 600 grooves mm(-1) optimally supports cell alignment and ECM arrangement...
December 27, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27998375/sleep-disturbances-in-oef-oif-ond-veterans-associations-with-ptsd-personality-and-coping
#4
Mackenzie J Lind, Emily Brown, Leah Farrell-Carnahan, Ruth C Brown, Sage Hawn, Erin Berenz, Scott McDonald, Treven Pickett, Carla Kmett Danielson, Suzanne Thomas, Ananda B Amstadter
STUDY OBJECTIVES: Sleep disturbances are well documented in relation to trauma exposure and posttraumatic stress disorder (PTSD), but correlates of such disturbances remain understudied in veteran populations. We conducted a preliminary study of sleep disturbances in Operation Enduring Freedom, Operation Iraqi Freedom, and Operation New Dawn veterans (n = 133; mean [standard deviation] age = 29.8 [4.7] y). METHODS: Veterans were assigned to one of three groups based on responses to the Clinician Administered PTSD Scale: control (no trauma-exposure [TE] or PTSD), TE, and PTSD...
December 16, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27993994/development-of-a-novel-therapeutic-vaccine-carrier-that-sustains-high-antibody-titers-against-several-targets-simultaneously
#5
Falk Saupe, Matthias Reichel, Elisabeth J M Huijbers, Julia Femel, Per-Olof Markgren, C Evalena Andersson, Sebastian Deindl, U Helena Danielson, Lars T Hellman, Anna-Karin Olsson
With the aim to improve the efficacy of therapeutic vaccines that target self-antigens, we have developed a novel fusion protein vaccine on the basis of the C-terminal multimerizing end of the variable lymphocyte receptor B (VLRB), the Ig equivalent in jawless fishes. Recombinant vaccines were produced in Escherichia coli by fusing the VLRB sequence to 4 different cancer-associated target molecules. The anti-self-immune response generated in mice that were vaccinated with VLRB vaccines was compared with the response in mice that received vaccines that contained bacterial thioredoxin (TRX), previously identified as an efficient carrier...
December 19, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27982636/evolution-of-a-vortex-in-a-strain-flow
#6
N C Hurst, J R Danielson, D H E Dubin, C M Surko
Experiments and vortex-in-cell simulations are used to study an initially axisymmetric, spatially distributed vortex subject to an externally imposed strain flow. The experiments use a magnetized pure electron plasma to model an inviscid two-dimensional fluid. The results are compared to a theory assuming an elliptical region of constant vorticity. For relatively flat vorticity profiles, the dynamics and stability threshold are in close quantitative agreement with the theory. Physics beyond the constant-vorticity model, such as vortex stripping, is investigated by studying the behavior of nonflat vorticity profiles...
December 2, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27943336/verification-of-protein-biomarkers-for-the-identification-of-biological-stains-by-quadrupole-time-of-flight-mass-spectrometry
#7
Kevin M Legg, Roger Powell, Nichole Reisdorph, Rick Reisdorph, Phillip B Danielson
Advances in proteomics technology over the past decade offer forensic serologists a greatly improved opportunity to accurately characterize the tissue source from which a DNA has been developed. Such information can provide critical context to evidence and can help to prioritize downstream DNA analysis. Previous proteome studies compiled panels of "candidate biomarkers" specific to each of six body fluids (i.e. peripheral blood, menstrual fluid, vaginal fluid, seminal fluid, urine and saliva). Here, a multiplex Quadrupole Time-of-flight assay has been developed in order to verify the tissue/body fluid specificity the 23 protein biomarkers that comprise these panels and the consistency with which they can be detected across a samples population of fifty humans...
December 12, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27894765/outcome-in-adults-with-anorectal-malformations-in-relation-to-modern-classification-which-patients-do-we-need-to-follow-beyond-childhood
#8
Johan Danielson, Urban Karlbom, Wilhelm Graf, Tomas Wester
BACKGROUND/PURPOSE: Knowledge about the functional outcome in adults with anorectal malformations is essential to organize structured transition to adult care for this patient group. The aim of this study was to investigate the functional outcome and quality of life in adults with anorectal malformations characterized according to the Krickenbeck classification. METHODS: Of 256 patients diagnosed with anorectal malformations at our institution in 1961-1993, 203 patients could be traced and were invited to participate in the study...
November 15, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27852820/interpreting-the-prevalence-of-mental-disorders-in-children-tribulation-and-triangulation
#9
Joseph R Holbrook, Rebecca H Bitsko, Melissa L Danielson, Susanna N Visser
Knowledge on the prevalence of mental disorders among children informs the work of many health care providers, public health researchers, educators, and policy makers, and any single data source and study methodology can provide valuable insight. However, it is only after prevalence estimates from complementary studies are considered together that distinctions can be made to more deeply inform an assessment of community needs, including diagnosed prevalence versus underlying prevalence, differences between insured and uninsured populations, and how estimates change over time...
November 15, 2016: Health Promotion Practice
https://www.readbyqxmd.com/read/27814455/mobile-devices-for-the-remote-acquisition-of-physiological-and-behavioral-biomarkers-in-psychiatric-clinical-research
#10
Zachary W Adams, Erin A McClure, Kevin M Gray, Carla Kmett Danielson, Frank A Treiber, Kenneth J Ruggiero
Psychiatric disorders are linked to a variety of biological, psychological, and contextual causes and consequences. Laboratory studies have elucidated the importance of several key physiological and behavioral biomarkers in the study of psychiatric disorders, but much less is known about the role of these biomarkers in naturalistic settings. These gaps are largely driven by methodological barriers to assessing biomarker data rapidly, reliably, and frequently outside the clinic or laboratory. Mobile health (mHealth) tools offer new opportunities to study relevant biomarkers in concert with other types of data (e...
February 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/27812183/imprime-pgg-mediated-anti-cancer-immune-activation-requires-immune-complex-formation
#11
Anissa S H Chan, Adria Bykowski Jonas, Xiaohong Qiu, Nadine R Ottoson, Richard M Walsh, Keith B Gorden, Ben Harrison, Peter J Maimonis, Steven M Leonardo, Kathleen E Ertelt, Michael E Danielson, Kyle S Michel, Mariana Nelson, Jeremy R Graff, Myra L Patchen, Nandita Bose
Imprime PGG (Imprime), an intravenously-administered, soluble β-glucan, has shown compelling efficacy in multiple phase 2 clinical trials with tumor targeting or anti-angiogenic antibodies. Mechanistically, Imprime acts as pathogen-associated molecular pattern (PAMP) directly activating innate immune effector cells, triggering a coordinated anti-cancer immune response. Herein, using whole blood from healthy human subjects, we show that Imprime-induced anti-cancer functionality is dependent on immune complex formation with naturally-occurring, anti-β glucan antibodies (ABA)...
2016: PloS One
https://www.readbyqxmd.com/read/27802519/antiapoptotic-effect-of-acetylcholine-in-fas-induced-apoptosis-in-human-keratocytes
#12
Marta Sloniecka, Ludvig J Backman, Patrik Danielson
Purpose: To investigate the possible antiapoptotic effect of acetylcholine (ACh) in Fas-mediated apoptosis of primary human keratocytes in vitro, and to explore the underlying mechanism. Methods: Primary human keratocytes were isolated from healthy corneas. Fas ligand (FasL) was used to induce apoptosis in keratocytes. Cell death was assessed by ELISA. Activity of caspase-3, -7, -8, and -9 was measured with luminescent caspase activity assays. Expression of nuclear factor-κB (NF-κB) gene was assessed with RT-quantitative (q)PCR...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27800610/lipocalin-2-ngal-attenuates-autophagy-to-exacerbate-cardiac-apoptosis-induced-by-myocardial-ischemia
#13
Hye Kyoung Sung, Yee Kwan Chan, Meng Han, James Won Suk Jahng, Erfei Song, Danielson Eric, Thorsten Berger, Tak W Mak, Gary Sweeney
Lipocalin-2 (Lcn2; also termed neutrophil gelatinase-associated lipocalin (NGAL)) levels correlate positively with heart failure (HF) yet mechanisms via which Lcn2 contributes to the pathogenesis of HF remian unclear. In this study we used coronary artery ligation surgery to induce ischemia in wild type (wt) mice and this induced a significant increase in myocardial Lcn2. We then compared wt and Lcn2 knockout (KO) mice and observed that wt mice showed greater ischemia-induced caspase-3 activation and DNA damage measured by TUNEL than Lcn2KO mice...
November 1, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27777988/investigation-of-helium-at-a-y2ti2o7-nanocluster-embedded-in-a-bcc-fe-matrix
#14
Thomas Danielson, Eric Tea, Celine Hin
Nanostructured ferritic alloys (NFAs) are prime candidates for structural and first wall components of fission and fusion reactors. The main reason for this is their ability to effectively withstand high concentrations of the transmutation product helium. A high number density of oxide nanoclusters dispersed throughout a BCC Fe matrix act as trapping sites for helium and prevent its eventual delivery to high risk nucleation sites. The current study uses density functional theory to investigate the helium trapping mechanisms at the boundary between BCC iron and Y2Ti2O7, a common stoichiometry of the oxide nanoclusters in NFAs...
October 25, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27767349/a-patient-centered-radiology-quality-process-map-opportunities-and-solutions
#15
Hani M Abujudeh, Adam Danielson, Michael A Bruno
OBJECTIVE: The purpose of this article is to review the tools and opportunities available for patient-centered care in radiology and to create a quality patient-centered care process map to organize them for radiology practices. CONCLUSION: This article provides a review of the many opportunities to increase and improve patient-centered care in radiology. A process map that organizes and highlights key elements of patient-centered care throughout the radiology care process is provided that can be implemented to enhance the patient experience of our services and improve the quality of care provided...
November 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27728760/surface-glycoproteins-of-exosomes-shed-by-myeloid-derived-suppressor-cells-contribute-to-function
#16
Sitara Chauhan, Steven Danielson, Virginia Clements, Nathan J Edwards, Suzanne Ostrand-Rosenberg, Catherine Fenselau
In this report we use a proteomic strategy to identify glycoproteins on the surface of exosomes derived from myeloid-derived suppressor cells (MDSC), and then test if selected glycoproteins contribute to exosome-mediated chemotaxis and migration of MDSC. We report successful modification of a surface chemistry method for use with exosomes, and identify twenty-one surface N-glycoproteins on exosomes released by mouse mammary carcinoma-induced MDSC. These glycoprotein identities and functionalities are compared with ninty-three N-linked glycoproteins identified on the surface of the parental cells...
October 11, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27721863/long-term-results-after-surgical-treatment-of-ebstein-s-anomaly-a-30-year-experience
#17
Min-Seok Kim, Hong-Gook Lim, Woong Han Kim, Jeong Ryul Lee, Yong Jin Kim
BACKGROUND AND OBJECTIVES: The aim of the study is to evaluate the long-term results after a surgical repair of Ebstein's anomaly. SUBJECTS AND METHODS: Forty-eight patients with Ebstein's anomaly who underwent open heart surgery between 1982 and 2013 were included. Median age at operation was 5.6 years (1 day-42.1 years). Forty-five patients (93.7%) demonstrated tricuspid valve (TV) regurgitation of less than moderate degree. When the patients were divided according to Carpentier's classification, types A, B, C, and D were 11, 21, 12, and 4 patients, respectively...
September 2016: Korean Circulation Journal
https://www.readbyqxmd.com/read/27689620/cellular-analysis-of-silencing-the%C3%A2-huntington-s-disease-gene-using-aav9%C3%A2-mediated-delivery-of-artificial-micro%C3%A2-rna-into-the-striatum-of%C3%A2-q140-q140%C3%A2-mice
#18
Allison M Keeler, Ellen Sapp, Kathryn Chase, Emily Sottosanti, Eric Danielson, Edith Pfister, Lorelei Stoica, Marian DiFiglia, Neil Aronin, Miguel Sena-Esteves
BACKGROUND: The genetic mutation in Huntington's disease (HD) is a CAG repeat expansion in the coding region of the huntingtin (Htt) gene. RNAi strategies have proven effective in substantially down-regulating Htt mRNA in the striatum through delivery of siRNAs or viral vectors based on whole tissue assays, but the extent of htt mRNA lowering in individual neurons is unknown. OBJECTIVE: Here we characterize the effect of an AAV9-GFP-miRHtt vector on Htt mRNA levels in striatal neurons of Q140/Q140 knock-in mice...
October 1, 2016: Journal of Huntington's Disease
https://www.readbyqxmd.com/read/27685611/efficacy-of-teaching-the-gambee-suture-pattern-using-simulated-small-intestine-versus-cadaveric-small-intestine
#19
Stephanie S Caston, Jennifer A Schleining, Jared A Danielson, Kevin D Kersh, Eric L Reinertson
OBJECTIVE: To determine if instruction using simulated small intestine (SSI) is as effective as using cadaveric small intestine to teach the Gambee suture pattern to second year veterinary students. STUDY DESIGN: Prospective, randomized, blinded study. SAMPLE POPULATION: Second year veterinary students (n=59). METHODS: Students were randomly assigned to groups using SSI or equine cadaver small intestine (CSI) to learn the Gambee suture pattern...
September 29, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27681617/mutant-pfn1-causes-als-phenotypes-and-progressive-motor-neuron-degeneration-in-mice-by-a-gain-of-toxicity
#20
Chunxing Yang, Eric W Danielson, Tao Qiao, Jake Metterville, Robert H Brown, John E Landers, Zuoshang Xu
Mutations in the profilin 1 (PFN1) gene cause amyotrophic lateral sclerosis (ALS), a neurodegenerative disease caused by the loss of motor neurons leading to paralysis and eventually death. PFN1 is a small actin-binding protein that promotes formin-based actin polymerization and regulates numerous cellular functions, but how the mutations in PFN1 cause ALS is unclear. To investigate this problem, we have generated transgenic mice expressing either the ALS-associated mutant (C71G) or wild-type protein. Here, we report that mice expressing the mutant, but not the wild-type, protein had relentless progression of motor neuron loss with concomitant progressive muscle weakness ending in paralysis and death...
October 11, 2016: Proceedings of the National Academy of Sciences of the United States of America
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