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https://www.readbyqxmd.com/read/28528348/effect-of-home-noninvasive-ventilation-with-oxygen-therapy-vs-oxygen-therapy-alone-on-hospital-readmission-or-death-after-an-acute-copd-exacerbation-a-randomized-clinical-trial
#1
Patrick B Murphy, Sunita Rehal, Gill Arbane, Stephen Bourke, Peter M A Calverley, Angela M Crook, Lee Dowson, Nicholas Duffy, G John Gibson, Philip D Hughes, John R Hurst, Keir E Lewis, Rahul Mukherjee, Annabel Nickol, Nicholas Oscroft, Maxime Patout, Justin Pepperell, Ian Smith, John R Stradling, Jadwiga A Wedzicha, Michael I Polkey, Mark W Elliott, Nicholas Hart
Importance: Outcomes after exacerbations of chronic obstructive pulmonary disease (COPD) requiring acute noninvasive ventilation (NIV) are poor and there are few treatments to prevent hospital readmission and death. Objective: To investigate the effect of home NIV plus oxygen on time to readmission or death in patients with persistent hypercapnia after an acute COPD exacerbation. Design, Setting, and Participants: A randomized clinical trial of patients with persistent hypercapnia (Paco2 >53 mm Hg) 2 weeks to 4 weeks after resolution of respiratory acidemia, who were recruited from 13 UK centers between 2010 and 2015...
May 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28516164/engineered-ligand-based-vegfr-antagonists-with-increased-receptor-binding-affinity-more-effectively-inhibit-angiogenesis
#2
Shiven Kapur, Adam P Silverman, Anne Z Ye, Niv Papo, Darren Jindal, Mark S Blumenkranz, Jennifer R Cochran
Pathologic angiogenesis is mediated by the coordinated action of the vascular endothelial growth factor (VEGF)/vascular endothelial growth factor receptor 2 (VEGFR2) signaling axis, along with crosstalk contributed by other receptors, notably αvβ3 integrin. We build on earlier work demonstrating that point mutations can be introduced into the homodimeric VEGF ligand to convert it into an antagonist through disruption of binding to one copy of VEGFR2. This inhibitor has limited potency, however, due to loss of avidity effects from bivalent VEGFR2 binding...
March 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/28514131/-treatment-of-achilles-tendon-ruptures
#3
Lior Laver, Viktor Feldman, Ezequiel Palmanovich, Eyal Yaacobi, Niv Marom, Omer Mei-Dan
Achilles tendon ruptures cause considerable morbidity and functionality reduction. There is lack of consensus regarding the best option for treatment following acute Achilles tendon rupture. Recent studies have failed to show substantial difference in outcome following conservative or operative treatment using an early active rehabilitation program. Meta-analyses have shown that conservative management has increased the risk of re-rupture, whereas operative intervention carries risks of complications related to the wound and iatrogenic nerve injury...
July 2016: Harefuah
https://www.readbyqxmd.com/read/28513558/from-cell-to-beak-in-vitro-and-in-vivo-characterization-of-chicken-bitter-taste-thresholds
#4
Shira Cheled-Shoval, Maik Behrens, Ayelet Korb, Antonella Di Pizio, Wolfgang Meyerhof, Zehava Uni, Masha Y Niv
Bitter taste elicits an aversive reaction, and is believed to protect against consuming poisons. Bitter molecules are detected by the Tas2r family of G-protein-coupled receptors, with a species-dependent number of subtypes. Chickens demonstrate bitter taste sensitivity despite having only three bitter taste receptors-ggTas2r1, ggTas2r2 and ggTas2r7. This minimalistic bitter taste system in chickens was used to determine relationships between in-vitro (measured in heterologous systems) and in-vivo (behavioral) detection thresholds...
May 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28510786/the-impact-of-frailty-on-noninvasive-mechanical-ventilation-in-elderly-medical-intensive-care-unit-patients
#5
Iskender Kara, F Yildirim, A Zerman, Z Gullu, N Boyaci, B B Aydogan, U Gaygisiz, K Gonderen, G Arik, M Turkoglu, M Aydogdu, G Aygencel, Z Ulger, G Gursel
AIM: Many factors affecting noninvasive ventilation (NIV) in critically ill patients have been reported in the literature, but there is no study about the effect of frailty. With this study, the frailty prevalence was evaluated with two different frailty scores among the NIV population of a medical intensive care unit (ICU). Besides, the impact of frailty on NIV success and mortality and its association with NIV application problems were evaluated. METHOD: A prospective observational cohort study was performed on patients who were over 50 years of age and assigned to NIV due to hypercapnic respiratory failure...
May 16, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28510187/identification-and-trichothecene-genotypes-of-fusarium-graminearum-species-complex-from-wheat-in-taiwan
#6
Chih-Li Wang, Yi-Hong Cheng
BACKGROUND: Fusarium head blight (FHB) of wheat caused by Fusarium graminearum species complex (FGSC) is a devastating disease worldwide. The pathogens not only reduce the yield of wheat, but also impact the quality of wheat by contamination with trichothecene mycotoxins. A systematic investigation on the pathogens of FHB in Taiwan is lacking. Here, molecular and morphological approaches were used to identify species of the Taiwanese FGSC isolates and determine their trichothecene genotypes...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28508568/randomized-crossover-trial-of-a-pressure-sensing-visual-feedback-system-to-improve-mask-fitting-in-noninvasive-ventilation
#7
Anne-Kathrin Brill, Mohammad Moghal, Mary J Morrell, Anita K Simonds
BACKGROUND AND OBJECTIVE: A good mask fit, avoiding air leaks and pressure effects on the skin are key elements for a successful noninvasive ventilation (NIV). However, delivering practical training for NIV is challenging, and it takes time to build experience and competency. This study investigated whether a pressure sensing system with real-time visual feedback improved mask fitting. METHODS: During an NIV training session, 30 healthcare professionals (14 trained in mask fitting and 16 untrained) performed two mask fittings on the same healthy volunteer in a randomized order: one using standard mask-fitting procedures and one with additional visual feedback on mask pressure on the nasal bridge...
May 15, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28505486/respiratory-support-techniques-to-avoid-desaturation-in-critically-ill-patients-requiring-endotracheal-intubation-a-systematic-review-and-meta-analysis
#8
REVIEW
Vincenzo Russotto, Andrea Cortegiani, Santi Maurizio Raineri, Cesare Gregoretti, Antonino Giarratano
PURPOSE: To evaluate which respiratory support method for critically ill patients undergoing endotracheal intubation (ETI) is associated with less desaturation. METHODS: We searched PubMed, Cochrane Library, Scopus and CINAHL databases. We included randomized (RCT) and non-randomized (non-RCT) studies investigating any method of respiratory support before/during ETI compared to a reference control. RESULTS: Apneic oxygenation (ApOx) was the most commonly investigated respiratory support technique for critically ill patients undergoing intubation (4 RCTs, 358 patients)...
May 8, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28503806/distinctiveness-benefits-novelty-and-not-familiarity-but-only-up-to-a-limit-the-prior-knowledge-perspective
#9
Niv Reggev, Reut Sharoni, Anat Maril
Novelty is a pivotal player in cognition, and its contribution to superior memory performance is a widely accepted convention. On the other hand, mnemonic advantages for familiar information are also well documented. Here, we examine the role of experimental distinctiveness as a potential explanation for these apparently conflicting findings. Across two experiments, we demonstrate that conceptual novelty, an unfamiliar combination of familiar constituents, is sensitive to its experimental proportions: Improved memory for novelty was observed when novel stimuli were relatively rare...
May 15, 2017: Cognitive Science
https://www.readbyqxmd.com/read/28494343/gene-end-like-sequences-within-the-3-non-coding-region-of-the-nipah-virus-genome-attenuate-viral-gene-transcription
#10
Akihiro Sugai, Hiroki Sato, Misako Yoneda, Chieko Kai
The regulation of transcription during Nipah virus (NiV) replication is poorly understood. Using a bicistronic minigenome system, we investigated the involvement of non-coding regions (NCRs) in the transcriptional re-initiation efficiency of NiV RNA polymerase. Reporter assays revealed that attenuation of NiV gene expression was not constant at each gene junction, and that the attenuating property was controlled by the 3' NCR. However, this regulation was independent of the gene-end, gene-start and intergenic regions...
May 8, 2017: Virology
https://www.readbyqxmd.com/read/28490871/home-noninvasive-positive-pressure-ventilation-with-built-in-software-in-stable-hypercapnic-copd-a-short-term-prospective-multicenter-randomized-controlled-trial
#11
Luqian Zhou, Xiaoying Li, Lili Guan, Jianhua Chen, Bingpeng Guo, Weiliang Wu, Yating Huo, Ziqing Zhou, Zhenyu Liang, Yuqi Zhou, Jie Tan, Xin Chen, Yuanlin Song, Rongchang Chen
BACKGROUND: The benefits of noninvasive positive pressure ventilation (NPPV) in patients with hypercapnic COPD are controversial. It is presumed that methodology and appropriate use of NIV ventilator might be crucial for the outcomes. With the new built-in software, the performance of NIV can be monitored at home, which can guarantee the compliance and appropriate use. This study investigated effects of home use of NIV in hypercapnia in COPD patients using the NIV ventilator with built-in software for monitoring...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28485989/non-invasive-positive-airway-pressure-in-obesity-hypoventilation-syndrome-and-chronic-obstructive-pulmonary-disease-present-and-future-perspectives
#12
Victor R Ramírez-Molina, Francisco J Gómez-de-Terreros, Javier Barca-Durán, Juan F Masa
Obesity hypoventilation syndrome (OHS) is a sleep disorder that has acquired great importance worldwide because of its prevalence and association with obesity leading to increased morbidity and mortality with reduced quality of life. The primary feature is insufficient sleep-related ventilation, resulting in abnormally elevated arterial carbon dioxide pressure (PaCO2) during sleep and demonstration of daytime hypoventilation. There are three main mechanisms that can generate diurnal hypoventilation in obese patients: alteration of the respiratory mechanics secondary to obesity; central hypoventilation secondary to leptin resistance and sleep disorder with sleep hypoventilation and obstructive apnoeas, which can be potentially solved with the use of positive airway pressure: non-invasive ventilation (NIV) and continuous positive airway pressure (CPAP)...
May 9, 2017: COPD
https://www.readbyqxmd.com/read/28485522/effects-of-1-month-withdrawal-of-ventilatory-support-in-hypercapnic-myotonic-dystrophy-type-1
#13
Fergal J O'Donoghue, Jean-Christian Borel, Yves Dauvilliers, Patrick Levy, Renaud Tamisier, Jean-Louis Pépin
BACKGROUND AND OBJECTIVE: The benefits of domiciliary non-invasive ventilation (NIV) in myotonic dystrophy type 1 (DM1) are unclear. We sought to determine the effects of elective discontinuation of ventilatory support for 1 month in DM1 patients receiving NIV for chronic hypercapnic respiratory failure. METHODS: At baseline, 12 patients underwent polysomnography, and assessment of subjective (Epworth Sleepiness Scale) and objective (Oxford Sleep Resistance Test) sleepiness, fatigue (Fatigue Severity Scale), respiratory function including muscle strength, arterial blood gas (ABG), hypercapnic ventilatory response (HCVR), Blood Pressure, peripheral arterial tonometry (PAT) and pulse wave velocity (PWV)...
May 9, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28482650/obesity-and-perioperative-noninvasive-ventilation-in-bariatric-surgery
#14
Michele Carron, Francesco Zarantonello, Giovanna Ieppariello, Carlo Ori
The incidence and prevalence of obesity continues to increase globally. Physicians will therefore provide care for an increasing number of obese patients in their clinical practice. Optimal management of these patients is required to minimize the risk of perioperative complications that increase morbidity and mortality. Obesity affects the respiratory function. It is generally associated with reduced lung volume with increased atelectasis, decreased lung and chest wall compliance, increased airway resistance, and moderate to severe hypoxemia...
June 2017: Minerva Chirurgica
https://www.readbyqxmd.com/read/28476473/decrease-in-delivery-room-intubation-rates-after-use-of-nasal-intermittent-positive-pressure-ventilation-in-the-delivery-room-for-resuscitation-of-very-low-birth-weight-infants
#15
Manoj Biniwale, Fiona Wertheimer
BACKGROUND: The literature supports minimizing duration of invasive ventilation to decrease lung injury in premature infants. Neonatal Resuscitation Program recommended use of non-invasive ventilation (NIV) in delivery room for infants requiring prolonged respiratory support. OBJECTIVE: To evaluate the impact of implementation of non-invasive ventilation (NIV) using nasal intermittent positive pressure ventilation (NIPPV) for resuscitation in very low birth infants...
May 2, 2017: Resuscitation
https://www.readbyqxmd.com/read/28464911/impact-of-high-intensity-niv-on-the-heart-in-stable-copd-a-randomised-cross-over-pilot-study
#16
Marieke Leontine Duiverman, Petra Maagh, Friederike Sophie Magnet, Claudia Schmoor, Maria Paola Arellano-Maric, Axel Meissner, Jan Hendrik Storre, Peter Jan Wijkstra, Wolfram Windisch, Jens Callegari
BACKGROUND: Although high-intensity non-invasive ventilation has been shown to improve outcomes in stable COPD, it may adversely affect cardiac performance. Therefore, the aims of the present pilot study were to compare cardiac and pulmonary effects of 6 weeks of low-intensity non-invasive ventilation and 6 weeks of high-intensity non-invasive ventilation in stable COPD patients. METHODS: In a randomised crossover pilot feasibility study, the change in cardiac output after 6 weeks of each NIV mode compared to baseline was assessed with echocardiography in 14 severe stable COPD patients...
May 2, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28464422/recombinant-ostreolysin-induces-brown-fat-like-phenotype-in-hib-1b-cells
#17
Tom Oren, Lili Nimri, Einav Yehuda-Shnaidman, Katy Staikin, Yitzhak Hadar, Assaf Friedler, Hadar Amartely, Michal Slutzki, Antonella Di Pizio, Masha Y Niv, Irena Peri, Lutz Graeve, Betty Schwartz
SCOPE: Brown adipose tissue (BAT) is the main regulator of thermogenesis by increasing energy expenditure through the uncoupling of oxidative metabolism from ATP synthesis. There is a growing body of evidence for BAT being the key responsible organ in combating obesity and its related disorders. Herein we propose the fungal protein ostreolysin (Oly), which has been previously shown to bind to cholesterol-enriched raft-like membrane domains (lipid rafts) of mammalian cells, as a suitable candidate for interaction with brown preadipocytes...
May 2, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28461884/risk-of-unsuccessful-noninvasive-ventilation-for-acute-respiratory-failure-in-heterogeneous-neuromuscular-diseases-a-retrospective-study
#18
Hiroshi Kataoka, Hitoki Nanaura, Kaoru Kinugawa, Yuto Uchihara, Hiroya Ohara, Nobuyuki Eura, Ryogo Syobatake, Nobuhiro Sawa, Kiriyama Takao, Kazuma Sugie, Satoshi Ueno
If invasive ventilation can be avoided by performing noninvasive mechanical ventilation (NIV) in patients with acute respiratory failure (ARF), the disease can be effectively managed. It is important to clarify the characteristics of patients with neuromuscular diseases in whom initial NIV is likely to be unsuccessful. We studied 27 patients in stable neuromuscular condition who initially received NIV to manage fatal ARF to identify differences in factors immediately before the onset of ARF among patients who receive continuous NIV support, patients who are switched from NIV to invasive ventilation, and patients in whom NIV is discontinued...
February 20, 2017: Neurology International
https://www.readbyqxmd.com/read/28451618/factors-associated-with-improved-function-and-maintenance-of-sports-activities-at-5-to-10-years-after-autologous-hamstring-acl-reconstruction-in-young-men
#19
Iftach Hetsroni, Mischa van-Stee, Niv Marom, Jonathan E J Koch, Eran Dolev, Guy Maoz, Meir Nyska, Gideon Mann
BACKGROUND: There are limited data regarding associated factors of return to sports activities at more than 5 years after anterior cruciate ligament (ACL) reconstruction. PURPOSE: To test interrelationships between patient characteristics, concomitant articular lesions, graft laxity, and maintenance of sports activities at 5 to 10 years after ACL reconstruction. It was hypothesized that at 5 to 10 years after the operation in young adult men, maintenance of greater activity level and better knee function would be associated with greater preinjury activity level, younger age at reconstruction, absence of concomitant articular lesions, and minimal graft laxity at follow-up...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28449471/one-year-and-long-term-mortality-in-patients-hospitalized-for-chronic-obstructive-pulmonary-disease
#20
María-Teresa García-Sanz, Juan-Carlos Cánive-Gómez, Laura Senín-Rial, Jorge Aboal-Viñas, Alejandra Barreiro-García, Eva López-Val, Francisco-Javier González-Barcala
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide. Identifying potentially-modifiable predictors of mortality could help optimize COPD patient management. The aim of this study is to determine long-term mortality following hospitalization due to acute exacerbations of COPD (AECOPD), as well as AECOPD mortality predictors. METHODS: We conducted a retrospective study by reviewing the medical records of all patients admitted with AECOPD in the University Hospital Complex of Santiago de Compostela in 2007 and 2008...
March 2017: Journal of Thoracic Disease
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