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https://www.readbyqxmd.com/read/28302458/the-effects-of-dexmedetomidine-pretreatment-on-the-pro-and-anti-inflammation-systems-after-spinal-cord-injury-in-rats
#1
Hui Rong, Zhibin Zhao, Jiying Feng, Yishan Lei, Hao Wu, Rao Sun, Zuoxia Zhang, Bailing Hou, Wei Zhang, YuE Sun, Xiaoping Gu, Zhengliang Ma, Yue Liu
Excessive inflammatory responses play important roles in the aggravation of secondary damage to an injured spinal cord. Dexmedetomidine (DEX), a selective α2-adrenoceptor agonist, has recently been implied to be neuroprotective in clinical anesthesia, but the underlying mechanism is elusive. As signaling through Toll-like receptor 4 (TLR4) and nicotinic receptors (nAChRs, notably α7nAChR) play important roles in the pro- and anti-inflammation systems in the central nervous system, respectively, this study investigated whether and how they were modulated by DEX pretreatment in a rat model of spinal cord compression...
March 14, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28302281/the-art-and-science-of-pediatric-damage-control
#2
Anthony Tran, Brendan T Campbell
Damage control is a surgical strategy that has evolved and expanded considerably over the past 25 years. The approach was initially developed as a "bail out" procedure to control bleeding with severe abdominal injuries in the setting of unmitigated hemorrhagic shock. Damage control is now more broadly applied as a comprehensive management plan for the resuscitation and surgical treatment of injured patients with exhausted physiologic and metabolic reserve. This article reviews the most current concepts in damage control that are important and relevant to the practicing pediatric surgeon...
February 2017: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/28297068/drug-eluting-balloons-for-resistant-arteriovenous-dialysis-access-stenosis
#3
Dimitrios Karnabatidis, Panagiotis Kitrou
Vascular access maintenance is vital for hemodialysis patients. Conventional balloon angioplasty is the gold standard of treatment in endovascular therapy according to published guidelines, accompanied by bare metal stents as a bail-out method. Several devices have been used so far with a view to improve patency outcomes, but only covered stents have been proposed as a valid alternative and only for venous juxta-anastomotic stenosis of arteriovenous grafts. Paclitaxel-coated balloons (PCBs) have been extensively investigated in the last few years in pilot studies with small numbers of patients in dialysis access...
March 6, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28290261/conditional-persistence-and-tolerance-characterize-endoparasite-colonial-host-interactions
#4
Inês Fontes, Hanna Hartikainen, Nick G H Taylor, Beth Okamura
Colonial hosts offer unique opportunities for exploitation by endoparasites resulting from extensive clonal propagation, but these interactions are poorly understood. The freshwater bryozoan, Fredericella sultana, and the myxozoan, Tetracapsuloides bryosalmonae, present an appropriate model system for examining such interactions. F. sultana propagates mainly asexually, through colony fragmentation and dormant propagules (statoblasts). Our study examines how T. bryosalmonae exploits the multiple transmission routes offered by the propagation of F...
March 14, 2017: Parasitology
https://www.readbyqxmd.com/read/28275827/intraprocedural-distal-embolization-after-femoropopliteal-angioplasty-is-there-a-role-for-below-the-knee-stents
#5
Miltiadis Krokidis, Tariq Ali, Nicholas Hilliard, Nadeem Shaida, Andrew Winterbottom, Brendan Koo, Teik Choon See
PURPOSE: Intraprocedural distal embolization is an accepted complication of femoropopliteal angioplasty. The purpose of this study is to assess the use of below-the-knee stents in the "bail-out" of conventional methods. MATERIALS AND METHODS: We retrospectively reviewed 1485 of femoropopliteal angioplasties that were performed in our centre in a 4-year period and analysed 12 cases (<1%) where distal embolization that required further intervention occurred. In all cases lesions were chronic and 75% suffered from critical limb ischaemia...
March 8, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28266162/short-term-results-of-alcohol-septal-ablation-as-a-bail-out-strategy-to-treat-severe-left-ventricular-outflow-tract-obstruction-after-transcatheter-mitral-valve-replacement-in-patients-with-severe-mitral-annular-calcification
#6
Mayra Guerrero, Dee Dee Wang, Dominique Himbert, Marina Urena, Amit Pursnani, Georges Kaddissi, Vijay Iyer, Michael Salinger, Tarun Chakravarty, Adam Greenbaum, Raj Makkar, Alec Vahanian, Ted Feldman, William O'Neill
OBJECTIVES: To evaluate the outcomes of the early experience of percutaneous alcohol septal ablation in patients with severe left ventricular outflow tract (LVOT) obstruction post transcatheter mitral valve replacement (TMVR). BACKGROUND: Severe LVOT obstruction with hemodynamic compromise is a complication of TMVR associated with high mortality. Percutaneous alcohol septal ablation has recently been described as a therapeutic option in this setting. METHODS: Multicenter retrospective review of clinical outcomes of patients undergoing alcohol septal ablation to treat LVOT obstruction after TMVR for severe mitral stenosis with severe mitral annular calcification...
March 7, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28247436/treatment-of-functional-mitral-regurgitation-by-percutaneous-annuloplasty-using-the-carillon-mitral-contour-system-currently-available-data-state
#7
Dorothee H L Bail
OBJECTIVE: The purpose of this study is to provide a systematic review of currently available data about the percutaneous trans-coronary-venous mitral annuloplasty with the Carillon Mitral Contour System. METHOD: A systematic literature search was conducted using the common medical and scientific databases. The documented parameters included among others grade of mitral regurgitation (MR), vena contracta (VC), effective regurgitant orifice area (EROA), 6 minute-walk-test (6MWT), NYHA-classification, and Quality of Life (QoL) at baseline, 30 days and in the long-term follow-up...
March 1, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28244437/a-novel-molten-salt-electrochemical-cell-for-investigating%C3%A2-the-reduction-of-uranium-dioxide-to-uranium-metal-by-lithium-using-in-situ-synchrotron-radiation
#8
Leon D Brown, Rema Abdulaziz, Rhodri Jervis, Vidal Bharath, Thomas J Mason, Robert C Atwood, Christina Reinhard, Leigh D Connor, Douglas Inman, Daniel J L Brett, Paul R Shearing
A novel electrochemical cell has been designed and built to allow for in situ energy-dispersive X-ray diffraction measurements to be made during reduction of UO2 to U metal in LiCl-KCl at 500°C. The electrochemical cell contains a recessed well at the bottom of the cell into which the working electrode sits, reducing the beam path for the X-rays through the molten-salt and maximizing the signal-to-noise ratio from the sample. Lithium metal was electrodeposited onto the UO2 working electrode by exposing the working electrode to more negative potentials than the Li deposition potential of the LiCl-KCl eutectic electrolyte...
March 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/28241161/correct-data-and-meta-analytic-approaches-show-the-reduced-risk-of-concussion-for-athletes-playing-at-higher-altitudes
#9
Julian E Bailes, David Smith
No abstract text is available yet for this article.
February 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28211529/association-between-abo-blood-group-and-risk-of-congenital-heart-disease-a-6-year-large-cohort-study
#10
Bailing Zu, Guoling You, Qihua Fu, Jing Wang
ABO blood group, except its direct clinical implications for transfusion and organ transplantation, is generally accepted as an effect factor for coronary heart disease, but the associations between ABO blood group and congenital heart disease (CHD) are not coherent by previous reports. In this study, we evaluated the the potential relationship between ABO blood group and CHD risk. In 39,042 consecutive inpatients (19,795 CHD VS 19,247 controls), we used multivariable logistic regression to evaluate the roles of ABO blood group, gender, and RH for CHD...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28179232/kidney-specific-genetic-deletion-of-both-ampk-%C3%AE-subunits-causes-salt-and-water-wasting
#11
Yoskaly Lazo-Fernández, Goretti Baile, Patricia Meade, Pilar Torcal, Laura Martínez, Carmen Ibañez, Maria Luisa Bernal, Benoit Viollet, Ignacio Giménez
AMP-activated kinase (AMPK) controls cell energy homeostasis by modulating ATP synthesis and expenditure. In vitro studies have suggested AMPK may also control key elements of renal epithelial electrolyte transport but in vivo physiological confirmation is still insufficient. We studied sodium renal handling and extracellular volume regulation in mice with genetic deletion of AMPK catalytic subunits. AMPKα1 knockout (KO) mice exhibit normal renal sodium handling and a moderate antidiuretic state. This is accompanied by higher urinary aldosterone excretion rates and reduced blood pressure...
February 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28156647/implementing-innovative-learner-centered-methods-to-teach-oncology-fellows-how-to-face-difficult-conversations
#12
Matthew Reilley, Jennifer Leigh McQuade, Walter F Baile, Daniel E Epner
27 Background: Oncologists engage in emotionally charged conversations with patients and families about prognosis, goals of care, and end of life transitions. Many oncologists lack key skills for guiding patients through such conversations. Key skills include posing open ended questions to elicit the patient's perspective, using silence effectively, and responding to emotion with empathy. We previously described a communication skills curriculum for first year medical oncology fellows consisting of a series of one hour monthly seminars (Epner and Baile, Academic Medicine, 2014)...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28138546/splashing-transients-of-2d-plasmons-launched-by-swift-electrons
#13
Xiao Lin, Ido Kaminer, Xihang Shi, Fei Gao, Zhaoju Yang, Zhen Gao, Hrvoje Buljan, John D Joannopoulos, Marin Soljačić, Hongsheng Chen, Baile Zhang
Launching of plasmons by swift electrons has long been used in electron energy-loss spectroscopy (EELS) to investigate the plasmonic properties of ultrathin, or two-dimensional (2D), electron systems. However, the question of how a swift electron generates plasmons in space and time has never been answered. We address this issue by calculating and demonstrating the spatial-temporal dynamics of 2D plasmon generation in graphene. We predict a jet-like rise of excessive charge concentration that delays the generation of 2D plasmons in EELS, exhibiting an analog to the hydrodynamic Rayleigh jet in a splashing phenomenon before the launching of ripples...
January 2017: Science Advances
https://www.readbyqxmd.com/read/28125689/selective-inhibition-of-prostasin-in-human-enterocytes-by-the-integral-membrane-kunitz-type-serine-protease-inhibitor-hai-2
#14
Frank Shiao, Li-Ching O Liu, Nanxi Huang, Ying-Jung J Lai, Robert J Barndt, Chun-Che Tseng, Jehng-Kang Wang, Bailing Jia, Michael D Johnson, Chen-Yong Lin
Mutations of hepatocyte growth factor activator inhibitor (HAI)-2 in humans cause sodium loss in the gastrointestinal (GI) tract in patients with syndromic congenital sodium diarrhea (SCSD). Aberrant regulation of HAI-2 target protease(s) was proposed as the cause of the disease. Here functional linkage of HAI-2 with two membrane-associated serine proteases, matriptase and prostasin was analyzed in Caco-2 cells and the human GI tract. Immunodepletion-immunoblot analysis showed that significant proportion of HAI-2 is in complex with activated prostasin but not matriptase...
2017: PloS One
https://www.readbyqxmd.com/read/28102464/a-phase-i-and-pharmacokinetic-study-of-afilbercept-with-folfiri-comparison-of-chinese-and-caucasian-populations
#15
Jianming Xu, Yingxin Li, Xing Sun, Dongsheng Zhang, Rongrui Liu, Samira Ziti-Ljajic, Dongmei Shi, Fengying Xue, Nathalie Le Bail, Ruihua Xu
Background This study assessed the preliminary safety, pharmacokinetics (PK) and anti-tumor effects of aflibercept in combination with 5-fluorouracil, leucovorin and irinotecan (FOLFIRI) in Chinese patients with previously-treated advanced solid malignancies. Patients and Methods This open-label single-arm Phase I study conducted at two centers in China included adult (≥18 years) patients with metastatic or unresectable solid malignancies who had received ≥1 prior treatment. Patients received aflibercept 4 mg/kg IV on Day 1 followed by FOLFIRI over Days 1 and 2 every 2 weeks, and were assessed for safety, tumor response, PK parameters and immunogenicity...
January 19, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28090010/long-term-outcomes-after-percutaneous-lower-extremity-arterial-interventions-with-atherectomy-vs-balloon-angioplasty%C3%A3-propensity-score-matched-registry
#16
Adam Janas, Piotr P Buszman, Krzysztof P Milewski, Szymon Wiernek, Ksenia Janas, Maciej Pruski, Wojciech Wojakowski, Aleksandra Błachut, Wojciech Picheta, Pawel Buszman, Stefan Kiesz
BACKGROUND: The impact of endovascular revascularization of the lower extremity arteries with atherectomy (AT) compared with percutaneous transluminal angioplasty (PTA) is still unclear. Therefore, the aim of the study was to compare long-term outcomes after percutaneous PTA and AT in patients requiring endovascular revascularization.Methods and Results:This was a single-center, retrospective registry of obstructive and symptomatic PAD patients who underwent endovascular revascularization...
February 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28087551/cost-effectiveness-of-superficial-femoral-artery-endovascular-interventions-in-the-uk-and-germany-a-modelling-study
#17
Benjamin C Kearns, Steven M Thomas
OBJECTIVES: To assess the lifetime costs and cost-effectiveness of 5 endovascular interventions to treat superficial femoral arterial disease. DESIGN: A model-based health economic evaluation. An existing decision analytical model was used, with updated effectiveness data taken from the literature, and updated costs based on purchasing prices. SETTING: UK and German healthcare perspectives were considered. PARTICIPANTS: Patients with intermittent claudication of the femoropopliteal arteries eligible for endovascular treatment...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28079681/internal-jugular-vein-compression-a-novel-approach-to-mitigate-blast-induced-hearing-injury
#18
Brian Sindelar, Michael Shinners, Sydney Sherman, Kevin Novak, Kristine Erickson, Vimal Patel, Paul Kubilis, David Smith, John Finan, Julian E Bailes
HYPOTHESIS: Internal jugular vein (IJV) compression before blast injury will lead to reduced risk of traumatic hearing injury following exposure to a blast injury. BACKGROUND: IJV compression and its effects on not only intracranial, but also intracochlear pressure may potentiate blast induced hearing injury, therefore, precluding its use as a prophylactic therapy for blast induced traumatic brain injury. METHODS: Twenty Sprague Dawley rats were exposed to a 17...
April 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28070676/-upper-extremity-fractures-in-the-elderly
#19
Roland Biber, S Grüninger, H J Bail
Upper extremity fractures in the elderly are very frequent and second only to hip fractures in the group of fragility fractures. Their impact on mobility and functional decline seems to be underestimated especially when they occur in combination with lower extremity fractures. Fractures of the proximal humerus and the distal radius can often be treated conservatively; however, the indications for operative treatment must not be based on fracture morphology alone and due consideration should be given to all concomitant circumstances affecting functional aspects of patients...
January 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28040080/is-it-safe-to-assist-proximal-humeral-nailing-to-residents-an-analysis-of-1134-cases
#20
Burak Altintas, Roland Biber, Hermann J Bail
INTRODUCTION: Intramedullary nailing is a common procedure for the treatment of proximal humeral fractures. In practical resident training this standardized operation plays an important role in the introduction to osteosynthesis. Our aim was to investigate whether assisting this operation to residents influences the surgical complication rate both in-house and on re-admission. METHODS: All 1134 patients who received a proximal humeral Targon PH nail (Aesculap) for proximal humeral fractures were included between 2000 and 2013...
December 2016: Injury
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