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https://www.readbyqxmd.com/read/28823132/a-short-term-supranutritional-vitamin-e-supplementation-alleviated-respiratory-alkalosis-but-did-not-reduce-oxidative-stress-in-heat-stressed-pigs
#1
Fan Liu, Pietro Celi, Surinder Singh Chauhan, Jeremy James Cottrell, Brian Joseph Leury, Frank Rowland Dunshea
Objective: Heat stress (HS) triggers oxidative stress and respiratory alkalosis in pigs. The objective of this experiment was to study whether a short-term supranutritional amount of dietary vitamin E (VE) can mitigate oxidative stress and respiratory alkalosis in heat-stressed pigs. Methods: A total of 24 pigs were given either a control diet (17 IU/kg VE) or a high VE (200 IU/kg VE; HiVE) diet for 14 d, then exposed to thermoneutral (TN; 20°C, 45% humidity) or HS (35°C, 35-45% humidity, 8 h daily) conditions for 7 d...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28822962/glucose-transporter-4-glut4-deficient-hearts-develop-maladaptive-hypertrophy-in-response-to-physiologic-or-pathologic-stresses
#2
Adam Raymond Wende, Jaetaek Kim, William Holland, Benjamin E Wayment, Brian T O'Neill, Joseph Tuinei, Manoja K Brahma, Mark E Pepin, Mark A McCrory, Ivan Luptak, Ganesh V Halade, Sheldon E Litwin, E Dale Abel
Pathological cardiac hypertrophy may be associated with reduced expression of the GLUT4 glucose transporter in contrast to exercise-induced cardiac hypertrophy, where GLUT4 levels are increased. However, mice with cardiac specific deletion of GLUT4 (G4H-/-) have normal cardiac function in the unstressed state. This study tested the hypothesis that cardiac GLUT4 is required for myocardial adaptations to hemodynamic demands. G4H-/- and control littermates (Con) were subjected to either a pathological model of left ventricular pressure overload (transverse aortic constriction; TAC) or a physiological model of endurance exercise (swim training)...
August 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28822838/scavenging-reactive-oxygen-species-inhibits-status-epilepticus-induced-neuroinflammation
#3
Pallavi B McElroy, Li-Ping Liang, Brian J Day, Manisha Patel
Inflammation has been identified as an important mediator of seizures and epileptogenesis. Understanding the mechanisms underlying seizure-induced neuroinflammation could lead to the development of novel therapies for the epilepsies. Reactive oxygen species (ROS) are recognized as mediators of seizure-induced neuronal damage and are known to increase in models of epilepsies. ROS are also known to contribute to inflammation in several disease states. We hypothesized that ROS are key modulators of neuroinflammation i...
August 16, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28822732/gamma-phase-synchrony-in-autobiographical-memory-evidence-from-magnetoencephalography-and-severely-deficient-autobiographical-memory
#4
Lluís Fuentemilla, Daniela J Palombo, Brian Levine
The subjective sense of recollecting events from one's past is an essential feature of episodic memory, but the neural mechanisms supporting this capacity are poorly understood. We examined the role of large-scale patterns of neural synchrony using whole-head MEG recordings in healthy adults and S.M., who has severely deficient autobiographical memory (SDAM; Palombo et al., 2015), a syndrome in which autobiographical recollection is absent but other functions (including other mnemonic functions), are normal...
August 16, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28822720/juvenile-idiopathic-arthritis-practice-patterns-among-oral-and-maxillofacial-surgeons
#5
Brian E Kinard, Shelly Abramowicz
PURPOSE: The purpose of this investigation is to assess the current clinical practices by oral and maxillofacial surgeons (OMSs) in the United States regarding diagnosis and treatment of temporomandibular joint (TMJ) involvement in children with juvenile idiopathic arthritis (JIA). MATERIALS AND METHODS: We implemented a cross-sectional survey of academic OMSs in the United States via an electronic survey. The survey included respondent demographic data, patient volumes, diagnostic methods, and management practices for children with JIA and TMJ involvement...
July 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822502/aligning-incentives-for-value-the-internal-performance-framework-at-partners-healthcare
#6
Brian W Powers, Amol S Navathe, Sreekanth K Chaguturu, Timothy G Ferris, David F Torchiana
No abstract text is available yet for this article.
September 2017: Healthcare
https://www.readbyqxmd.com/read/28822472/tens-like-stimulation-downregulates-inflammatory-cytokines-in-a-pc-12-cell-line
#7
Guy Sovak, Brian Budgell
OBJECTIVES: The purpose of this study was to evaluate the effects of transcutaneous electrical nerve stimulation (TENS)-like stimulation on the expression of the proinflammatory cytokines tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and IL-6 in PC-12 cells, which are commonly used as neuronal cell models. METHODS: Nerve growth factor-differentiated PC-12 cells were exposed to electrical stimulation for 15 minutes at 1 mA, 200 μs, and 100 Hz. Cell lysate from stimulated and control cells was assayed for TNF-α, IL-1β, and IL-6...
July 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28822387/indicators-of-survival-and-favorable-functional-outcomes-after-decompressive-craniectomy-a-multi-institutional-retrospective-study
#8
Abid D Khan, Anna J Elseth, Brian Head, Jack Rostas, Julie A Dunn, Thomas J Schroeppel, Richard P Gonzalez
The role of decompressive craniectomy (DC) for severe traumatic brain injury (STBI) remains controversial. The purpose of this study was to identify factors that are indicators of survival and improved functional outcome in patients who undergo DC for STBI. A retrospective review of STBI patients who underwent DC was performed at four trauma centers during a 45-month period. Data collected included age, gender, mechanism of injury, Injury Severity Score (ISS), admission Glasgow Coma Scale (GCS), time from admission to DC, mortality, and extended Glasgow Outcome Score before discharge...
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822385/pneumatosis-intestinalis-in-patients-receiving-tube-feeds
#9
Alexander C Cavalea, Robert E Heidel, Brian J Daley, Christy M Lawson, Darrell A Benton, James M McLoughlin
Pneumatosis intestinalis (PI) identified on computed tomography (CT) suggests an underlying pathology including bowel ischemia. Patients receiving tube feeds can develop PI, potentially requiring surgical intervention. We identify clinical factors in PI to predict those that may be safe to observe versus those that need immediate intervention. We retrospectively reviewed patients from a single institution from 2008 to 2016 with CT findings of PI and an enteric feeding tube. Patients who had not received tube feeds within one week of the CT were excluded...
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822378/asymptomatic-venous-bullet-emboli-rationale-for-nonoperative-management
#10
Brian K Sparkman, Shuntaye Batson
No abstract text is available yet for this article.
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822225/altered-thymocyte-and-t-cell-development-in-neonatal-mice-with-hyperoxia-induced-lung-injury
#11
Sowmya Angusamy, Tamer Mansour, Mohammed Abdulmageed, Rachel Han, Brian C Schutte, John LaPres, Jack R Harkema, Said A Omar
BACKGROUND: The adaptive immune system of neonates is relatively underdeveloped. The thymus is an essential organ for adaptive T cell development and might be affected during the natural course of oxygen induced lung injury. The effect of prolonged hyperoxia on the thymus, thymocyte and T cell development, and its proliferation has not been studied extensively. METHODS: Neonatal mice were exposed to 85% oxygen (hyperoxia) or room air (normoxia) up to 28 days. Flow cytometry using surface markers were used to assay for thymocyte development and proliferation...
August 19, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28822065/the-inflammatory-potential-of-dietary-manganese-in-a-cohort-of-elderly-men
#12
Jacob K Kresovich, Catherine M Bulka, Brian T Joyce, Pantel S Vokonas, Joel Schwartz, Andrea A Baccarelli, Elizabeth A Hibler, Lifang Hou
Manganese is an essential nutrient that may play a role in the production of inflammatory biomarkers. We examined associations between estimated dietary manganese intake from food/beverages and supplements with circulating biomarkers of inflammation. We further explored whether estimated dietary manganese intake affects DNA methylation of selected genes involved in the production of these biomarkers. We analyzed 1023 repeated measures of estimated dietary manganese intakes and circulating blood inflammatory biomarkers from 633 participants in the Normative Aging Study...
August 18, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28821924/-89-zr-labeled-nivolumab-for-imaging-of-t-cell-infiltration-in-a-humanized-murine-model-of-lung-cancer
#13
Christopher G England, Dawei Jiang, Emily B Ehlerding, Brian T Rekoske, Paul A Ellison, Reinier Hernandez, Todd E Barnhart, Douglas G McNeel, Peng Huang, Weibo Cai
PURPOSE: Nivolumab is a human monoclonal antibody specific for programmed cell death-1 (PD-1), a negative regulator of T-cell activation and response. Acting as an immune checkpoint inhibitor, nivolumab binds to PD-1 expressed on the surface of many immune cells and prevents ligation by its natural ligands. Nivolumab is only effective in a subset of patients, and there is limited evidence supporting its use for diagnostic, monitoring, or stratification purposes. METHODS: (89)Zr-Df-nivolumab was synthesized to map the biodistribution of PD-1-expressing tumor infiltrating T-cells in vivo using a humanized murine model of lung cancer...
August 19, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28821736/ecological-speciation-in-a-generalist-consumer-expands-the-trophic-niche-of-a-dominant-predator
#14
Stephen M Thomas, Chris Harrod, Brian Hayden, Tommi Malinen, Kimmo K Kahilainen
Ecological speciation - whereby an ancestral founder species diversifies to fill vacant niches - is a phenomenon characteristic of newly formed ecosystems. Despite such ubiquity, ecosystem-level effects of such divergence remain poorly understood. Here, we compared the trophic niche of European whitefish (Coregonus lavaretus) and their predators in a series of contrasting subarctic lakes where this species had either diversified into four ecomorphologically distinct morphs or instead formed monomorphic populations...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821722/egyptian-rousette-bats-maintain-long-term-protective-immunity-against-marburg-virus-infection-despite-diminished-antibody-levels
#15
Amy J Schuh, Brian R Amman, Tara K Sealy, Jessica R Spengler, Stuart T Nichol, Jonathan S Towner
Although bats are natural reservoir hosts for numerous zoonotic viruses, little is known about the long-term dynamics of the host immune response following infection and how these viruses are maintained in nature. The Egyptian rousette bat (ERB) is a known reservoir host for Marburg virus (MARV). Following infection of ERBs with MARV, virus-specific IgG antibodies are induced but rapidly wane and by 3 months post-infection the bats are seronegative. To determine whether reinfection of ERBs plays a role in MARV maintenance, we challenge groups of ERBs that were "naturally" or experimentally infected with MARV 17-24 months prior...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821681/when-brain-beats-behavior-neuroforecasting-crowdfunding-outcomes
#16
Alexander Genevsky, Carolyn Yoon, Brian Knutson
Although traditional economic and psychological theories imply that individual choice best scales to aggregate choice, primary components of choice reflected in neural activity may support even more generalizable forecasts. Crowdfunding represents a significant and growing platform for funding new and unique projects, causes, and products. To test whether neural activity could forecast market-level crowdfunding outcomes weeks later, 30 human subjects (14 female) decided whether to fund proposed projects described on an internet crowdfunding website while undergoing scanning with functional magnetic resonance imaging (FMRI)...
August 3, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821627/angiographic-and-clinical-outcomes-of-balloon-remodeling-versus-unassisted-coil-embolization-in-the-ruptured-aneurysm-cohort-of-the-gel-the-nec-study
#17
Guilherme Dabus, Waleed Brinjikji, Arun P Amar, Josser E Delgado Almandoz, Orlando M Diaz, Pascal Jabbour, Ricardo Hanel, Ferdinand Hui, Michael Kelly, Kennith F Layton, Jeffrey W Miller, Elad I Levy, Christopher J Moran, Dae Chul Suh, Henry Woo, Robbin Sellar, Brian Hoh, Avery Evans, David F Kallmes
BACKGROUND AND PURPOSE: GEL THE NEC (GTN) was a multicenter prospective registry developed to assess the safety and efficacy of HydroSoft coils in treating intracranial aneurysms. We compared the angiographic and clinical outcomes of aneurysms treated with balloon assisted coil embolization (BACE) versus unassisted coil embolization (CE) in the ruptured aneurysm cohort. MATERIALS AND METHODS: GTN was performed at 27 centers in five countries. Patients aged 21-90 years with a ruptured aneurysm 3-15 mm in size were eligible for enrollment...
August 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28821626/current-applications-and-future-perspectives-of-robotics-in-cerebrovascular-and-endovascular-neurosurgery
#18
REVIEW
Simon A Menaker, Sumedh S Shah, Brian M Snelling, Samir Sur, Robert M Starke, Eric C Peterson
Advances in robotic medicine have been adopted by various surgical subspecialties as the benefits of this technology become more readily apparent: precision in narrow operative windows, tremor controlled movements, and modestly improved outcomes, among others. Vascular neurosurgery, in particular, remains open to newer and more cutting edge treatment options for complex pathologies, and robotics may be on the horizon for such advances. We seek to provide a broad overview of these innovations in vascular neurosurgery for both practitioners well acquainted with robotics and those seeking to become more familiar...
August 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28821525/point-of-care-washing-of-allogeneic-red-blood-cells-for-the-prevention-of-transfusion-related-respiratory-complications-war-prc-a-protocol-for-a-multicenter-randomised-clinical-trial-in-patients-undergoing-cardiac-surgery
#19
Matthew A Warner, Ian J Welsby, Phillip J Norris, Christopher C Silliman, Sarah Armour, Erica D Wittwer, Paula J Santrach, Laurie A Meade, Lavonne M Liedl, Chelsea M Nieuwenkamp, Brian Douthit, Camille M van Buskirk, Phillip J Schulte, Rickey E Carter, Daryl J Kor
INTRODUCTION: The transfusion-related respiratory complications, transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO), are leading causes of transfusion-related morbidity and mortality. At present, there are no effective preventive strategies with red blood cell (RBC) transfusion. Although mechanisms remain incompletely defined, soluble biological response modifiers (BRMs) within the RBC storage solution may play an important role. Point-of-care (POC) washing of allogeneic RBCs may remove these BRMs, thereby mitigating their impact on post-transfusion respiratory complications...
August 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28821463/lymphatic-transport-and-lymph-node-targeting-of-methotrexate-conjugated-pegylated-dendrimers-is-enhanced-by-reducing-the-length-of-the-drug-linker-or-masking-interactions-with-the-injection-site
#20
Gemma M Ryan, Victoria M McLeod, Dharmini Mehta, Brian D Kelly, Pauline C Stanislawski, David J Owen, Lisa M Kaminskas, Christopher J H Porter
Drug conjugation to dendrimer-based delivery systems has been shown to enhance delivery to the lymphatic system after subcutaneous administration. Dendrimer interaction with components of the interstitium at the injection site, however, may prevent drainage from the injection site. The current study sought to vary the length of a linker employed to conjugate methotrexate (MTX) to a PEGylated dendrimer, in an attempt to reduce MTX interaction with interstitial binding sites and enhance lymphatic drainage. Dendrimers with shorter linkers resulted in higher lymphatic drainage, presumably via shielding of interaction sites by the PEG mantle, but were not retained in lymph nodes...
August 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
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