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High flow oxygene therapy

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https://www.readbyqxmd.com/read/28735156/adaptive-periodic-paralysis-allows-weaning-deep-sedation-overcoming-the-drowning-syndrome-in-ecmo-patients-bridged-for-lung-transplantation-a-case-series
#1
Irina Timofte, Michael Terrin, Erik Barr, June Kim, Joseph Rinaldi, Nicholas Ladikos, Jay Menaker, Ali Tabatabai, Zachary Kon, Bartley Griffith, Richard Pierson, Si Pham, Aldo Iacono, Daniel Herr
PURPOSE: Sedation in extracorporeal membrane oxygenation (ECMO) is challenging. Patients require deep sedation because of extremely high respiratory rates and increased work of breathing ("Drowning Syndrome") resulting in altered intra-thoracic pressure and reduced pump flow associated with hemodynamic compromise and decreased oxygenation. However, deep sedation impedes essential active rehabilitation with physical therapy. METHODS: We reviewed data on 3 ECMO patients for whom we used a novel approach to replace continuous drips with periodic sedation/paralysis...
July 17, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28728621/high-flow-heated-humidified-air-via-nasal-cannula-treats-cpap-intolerant-children-with-obstructive-sleep-apnea
#2
Stephen Hawkins, Stephanie Huston, Kristen Campbell, Ann Halbower
STUDY OBJECTIVES: Continuous positive airway pressure (CPAP) is effective but challenging for children with obstructive sleep apnea (OSA). High-flow air via open nasal cannula (HFNC) as treatment in children remains controversial. We report the efficacy of HFNC in children with OSA and CPAP intolerance, a titration protocol, and a discussion of potential mechanisms. METHODS: Patients aged 1 to 18 years with OSA (defined by obstructive apnea-hypopnea index [OAHI] greater than 1 event/h) and CPAP intolerance were enrolled...
July 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28723625/2-acetylamino-3-4-2-acetylamino-2-carboxyethylsulfanylcarbonylamino-phenyl-carbamoylsulfanyl-propionic-acid-a-glutathione-reductase-inhibitor-induces-g2-m-cell-cycle-arrest-through-generation-of-thiol-oxidative-stress-in-human-esophageal-cancer-cells
#3
Xia Li, Zhiming Jiang, Jianguo Feng, Xiaoying Zhang, Junzhou Wu, Wei Chen
Esophageal squamous cell carcinoma (ESCC) is a highly malignant cancer with poor response to both of chemotherapy and radiotherapy. 2-Acetylamino-3-[4-(2-acetylamino-2-carboxyethylsulfanylcarbonylamino) phenyl carbamoylsulfanyl] propionic acid (2-AAPA), an irreversible inhibitor of glutathione reductase (GR), is able to induce intracellular oxidative stress, and has shown anticancer activity in many cancer cell lines. In this study, we investigated the effects of 2-AAPA on the cell proliferation, cell cycle and apoptosis and aimed to explore its mechanism of action in human esophageal cancer TE-13 cells...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28721902/permeability-of-brain-tumor-vessels-induced-by-uniform-or-spatially-microfractionated-synchrotron-radiation-therapies
#4
Audrey Bouchet, Marine Potez, Nicolas Coquery, Claire Rome, Benjamin Lemasson, Elke Bräuer-Krisch, Chantal Rémy, Jean Laissue, Emmanuel L Barbier, Valentin Djonov, Raphael Serduc
PURPOSE: To compare the blood-brain barrier permeability changes induced by synchrotron microbeam radiation therapy (MRT, which relies on spatial fractionation of the incident x-ray beam into parallel micron-wide beams) with changes induced by a spatially uniform synchrotron x-ray radiation therapy. METHODS AND MATERIALS: Male rats bearing malignant intracranial F98 gliomas were randomized into 3 groups: untreated, exposed to MRT (peak and valley dose: 241 and 10...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28716739/phototoxicity-in-a-laryngeal-cancer-cell-line-enhanced-by-a-targeting-amphiphilic-chlorin-photosensitizer
#5
Milene N O Moritz, Carlos Rossa, Kleber T de Oliveira, Marciana P Uliana, Janice R Perussi
BACKGROUND: Photodynamic therapy (PDT) has been established in several countries as an alternative therapy for the treatment of various malignancies. This therapy involves the incorporation of a photosensitizer (PS) that is activated by visible light and form reactive oxygen species leading to target cell death by apoptosis or necrosis. Previously, our group has demonstrated that CHL-T (semi-synthesized from chlorophyll a and containing a linked solubilizing group TRISMA(®)) presented a pronounced potential to induce death in HeLa cell line after PDT...
July 14, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28711371/extubation-to-high-flow-nasal-cannula-in-critically-ill-surgical-patients
#6
Navpreet K Dhillon, Eric J T Smith, Ara Ko, Megan Y Harada, Danielle Polevoi, Richard Liang, Galinos Barmparas, Eric J Ley
BACKGROUND: High-flow nasal cannula (HFNC) is increasingly used to reduce reintubations in patients with respiratory failure. Benefits include providing positive end expiratory pressure, reducing anatomical dead space, and decreasing work of breathing. We sought to compare outcomes of critically ill surgical patients extubated to HFNC versus conventional therapy. METHODS: A retrospective review was conducted in the surgical intensive care unit of an academic center during August 2015 to February 2016...
July 12, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28701227/high-flow-nasal-cannula-oxygen-therapy-is-superior-to-conventional-oxygen-therapy-but-not-to-noninvasive-mechanical-ventilation-on-intubation-rate-a-systematic-review-and-meta-analysis
#7
Huiying Zhao, Huixia Wang, Feng Sun, Shan Lyu, Youzhong An
BACKGROUND: High-flow nasal cannula oxygen (HFNC) is a relatively new therapy used in adults with respiratory failure. Whether it is superior to conventional oxygen therapy (COT) or to noninvasive mechanical ventilation (NIV) remains unclear. The aim of the present study was to investigate whether HFNC was superior to either COT or NIV in adult acute respiratory failure patients. METHODS: A review of the literature was conducted from the electronic databases from inception up to 20 October 2016...
July 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28681584/cytotoxicity-of-anti-tumor-herbal-marsdeniae-tenacissimae-extract-on-erythrocytes
#8
Ke Hao, Bing-Yu Chen, Kai-Qiang Li, Yu Zhang, Cai-Xia Li, Ying Wang, Lu-Xi Jiang, Jiang Shen, Xiang-Chai Guo, Wei Zhang, Meng-Hua Zhu, Zhen Wang
Marsdeniae tenacissimae extract (MTE) has been used as an adjuvant medicine for cancer therapy for a long time. Although massive studies demonstrated its considerable anti-cancer effect, there is no research on its influence on erythrocytes, which are firstly interacted with MTE in the circulation. To investigate the influence of MTE on erythrocytes, we used a flow cytometer to detect the MTE-treated alternations of morphology, calcium concentration, and reactive oxygen species (ROS) level in erythrocytes. We used hemolysis under different osmotic solutions to evaluate the fragility of erythrocytes...
July 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28672279/%C3%AE-elemene-regulates-endoplasmic-reticulum-stress-to-induce-the-apoptosis-of-nsclc-cells-through-perk-ire1%C3%AE-atf6-pathway
#9
Ying Liu, Zi-Yu Jiang, Yuan-Li Zhou, Hui-Hui Qiu, Gang Wang, Yi Luo, Jing-Bing Liu, Xiong-Wei Liu, Wei-Quan Bu, Jie Song, Li Cui, Xiao-Bin Jia, Liang Feng
Endoplasmic reticulum stress (ERs) has been regarded as an important cause for the pathogenesis of non-small-cell lung cancer (NSCLC). β-elemene is an active component in the essential oil extracted from a medicinal herb, Curcuma wenyujin, and has been reported to be effective against non-small-cell lung cancer (NSCLC). However, the potential effect and underlying mechanisms of β-elemene on regulating ERs to inhibit NSCLC are still unclear. In the present study, A549 cells and Lewis tumor-bearing C57BL/6J mice were established to evaluate this effect...
June 30, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28663891/pre-clinical-longitudinal-monitoring-of-hemodynamic-response-to-anti-vascular-chemotherapy-by-hybrid-diffuse-optics
#10
Parisa Farzam, Johannes Johansson, Miguel Mireles, Gabriela Jiménez-Valerio, Mar Martínez-Lozano, Regine Choe, Oriol Casanovas, Turgut Durduran
The longitudinal effect of an anti-vascular endothelial growth factor receptor 2 (VEGFR-2) antibody (DC 101) therapy on a xenografted renal cell carcinoma (RCC) mouse model was monitored using hybrid diffuse optics. Two groups of immunosuppressed male nude mice (seven treated, seven controls) were measured. Tumor microvascular blood flow, total hemoglobin concentration and blood oxygenation were investigated as potential biomarkers for the monitoring of the therapy effect twice a week and were related to the final treatment outcome...
May 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28659200/-an-unrecognized-cause-of-dyspnoea
#11
A Brys, A Wijers, M de Vries, N Bouwman, R Borghans
BACKGROUND: Neuralgic amyotrophy is characterised by pain in the neck or shoulder region, followed by neuropathy of both motor and sensory nerves of the brachial plexus. The incidence of this condition is estimated at 1/1000 per year. In a rare variant of the syndrome, involvement of both phrenic nerves can occur, leading to diaphragmatic paralysis and severe orthopnoea. CASE DESCRIPTION: A 67-year-old woman was referred to us with acute orthopnoea. Imaging studies showed bilateral diaphragmatic paralysis, and electromyography (EMG) confirmed neuropathy of both phrenic nerves...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28646647/successful-maintenance-of-key-physiological-parameters-in-preterm-lambs-treated-with-ex%C3%A2-vivo-uterine-environment-therapy-for-a-period-of-1-week
#12
Haruo Usuda, Shimpei Watanabe, Yuichiro Miura, Masatoshi Saito, Gabrielle C Musk, Judith Rittenschober-Böhm, Hideyuki Ikeda, Shinichi Sato, Takushi Hanita, Tadashi Matsuda, Alan H Jobe, John P Newnham, Sarah J Stock, Matthew W Kemp
BACKGROUND: Extremely preterm infants born at the border of viability (22-24 weeks' gestation) have high rates of death and lasting disability. Ex vivo uterine environment therapy is an experimental neonatal intensive care strategy that provides gas exchange using parallel membranous oxygenators connected to the umbilical vessels, sparing the extremely preterm cardiopulmonary system from ventilation-derived injury. OBJECTIVE: In this study, we aimed to refine our ex vivo uterine environment therapy platform to eliminate fetal infection and inflammation, while simultaneously extending the duration of hemodynamically stable ex vivo uterine environment therapy to 1 week...
June 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28645982/a-multicentre-randomised-controlled-non-inferiority-trial-comparing-nasal-high-flow-with-nasal-continuous-positive-airway-pressure-as-primary-support-for-newborn-infants-with-early-respiratory-distress-born-in-australian-non-tertiary-special-care-nurseries
#13
Brett J Manley, Calum T Roberts, Gaston R B Arnolda, Ian M R Wright, Louise S Owen, Kim M Dalziel, Jann P Foster, Peter G Davis, Adam G Buckmaster
INTRODUCTION: Nasal high-flow (nHF) therapy is a popular mode of respiratory support for newborn infants. Evidence for nHF use is predominantly from neonatal intensive care units (NICUs). There are no randomised trials of nHF use in non-tertiary special care nurseries (SCNs). We hypothesise that nHF is non-inferior to nasal continuous positive airway pressure (CPAP) as primary support for newborn infants with respiratory distress, in the population cared for in non-tertiary SCNs. METHODS AND ANALYSIS: The HUNTER trial is an unblinded Australian multicentre, randomised, non-inferiority trial...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28644058/air-embolism-diagnosis-and-management
#14
Neera Malik, Paul L Claus, Jeffery E Illman, Seth J Kligerman, Michael R Moynagh, David L Levin, David A Woodrum, Arvin Arani, Shivaram P Arunachalam, Philip A Araoz
Air embolism is an uncommon, but potentially life-threatening event for which prompt diagnosis and management can result in significantly improved patient outcomes. Most air emboli are iatrogenic. Arterial air emboli may occur as a complication from lung biopsy, arterial catheterization or cardiopulmonary bypass. Immediate management includes placing the patient on high-flow oxygen and in the right lateral decubitus position. Venous air emboli may occur during pressurized venous infusions, or catheter manipulation...
July 2017: Future Cardiology
https://www.readbyqxmd.com/read/28637493/the-role-of-nlrp3-inflammasome-in-5-fluorouracil-resistance-of-oral-squamous-cell-carcinoma
#15
Xiaodong Feng, Qingqiong Luo, Han Zhang, Han Wang, Wantao Chen, Guangxun Meng, Fuxiang Chen
BACKGROUND: 5-Fluorouracil (5-FU) is a widely used drug for the therapy of cancer. However, the chemoresistance of tumor cells to 5-FU usually limits its clinical effectiveness. In this study, we explored the role of NLRP3 inflammasome in 5-FU resistance of oral squamous cell carcinoma (OSCC). METHODS: The mRNA and protein expression levels of NLRP3, Caspase1 and IL-1β in resected OSCC specimens or cell lines were measured respectively by quantitative real time-PCR (qRT-PCR) and western blot...
June 21, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28629636/nasal-high-flow-oxygen-therapy-in-the-ward-setting-a-prospective-observational-study
#16
Alison M Pirret, Susan F Takerei, Claire L Matheson, Meghan Kelly, Wharewaina Strickland, Joanne Harford, Nicola E Jepsen, Lisa J Welsh, Chloe P A Allan
BACKGROUND: Whilst research demonstrates the benefits of nasal high flow oxygen in the intensive care setting, limited literature exists on its benefits in ward patients. OBJECTIVES: This study evaluated the use of nasal high flow oxygen in adult ward patients with respiratory failure or at risk of respiratory deterioration. Primary outcome was an improvement in pulmonary function as indicated by decreases in respiratory and heart rates and an increase in arterial oxygen saturation via pulse oximetry...
June 16, 2017: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
https://www.readbyqxmd.com/read/28627960/lack-of-functional-normalisation-of-tumour-vessels-following-anti-angiogenic-therapy-in-glioblastoma
#17
Nina Obad, Heidi Espedal, Radovan Jirik, Per Oystein Sakariassen, Cecilie Brekke Rygh, Morten Lund-Johansen, Torfinn Taxt, Simone P Niclou, Rolf Bjerkvig, Olivier Keunen
Neo-angiogenesis represents an important factor for the delivery of oxygen and nutrients to a growing tumour, and is considered to be one of the main pathodiagnostic features of glioblastomas (GBM). Anti-angiogenic therapy by vascular endothelial growth factor (VEGF) blocking agents has been shown to lead to morphological vascular normalisation resulting in a reduction of contrast enhancement as seen by magnetic resonance imaging (MRI). Yet the functional consequences of this normalisation and its potential for improved delivery of cytotoxic agents to the tumour are not known...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28627621/identification-of-different-macrophage-subpopulations-with-distinct-activities-in-a-mouse-model-of-oxygen-induced-retinopathy
#18
Yanji Zhu, Ling Zhang, Qing Lu, Yushuo Gao, Yujuan Cai, Ailing Sui, Ting Su, Xi Shen, Bing Xie
The aim of the present study was to characterize the phenotypic shift, quantity and role changes in different subgroups of retinal macrophages in a mouse model of oxygen-induced retinopathy (OIR). The mRNA expression levels of macrophage M1 and M2 subgroup marker genes and polarization-associated genes were analyzed by RT-qPCR. The number of M1 and M2 macrophages in our mouse model of OIR was analyzed by flow cytometry at different time points during the progression of OIR. Immunofluorescence whole mount staining of the retinas of mice with OIR was performed at different time points to examine the influx of macrophages, as well as the morphological characteristics and roles of M1 and M2 macrophages...
June 13, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28607489/the-metabolic-function-of-cyclin-d3-cdk6-kinase-in-cancer-cell-survival
#19
Haizhen Wang, Brandon N Nicolay, Joel M Chick, Xueliang Gao, Yan Geng, Hong Ren, Hui Gao, Guizhi Yang, Juliet A Williams, Jan M Suski, Mark A Keibler, Ewa Sicinska, Ulrike Gerdemann, W Nicholas Haining, Thomas M Roberts, Kornelia Polyak, Steven P Gygi, Nicholas J Dyson, Piotr Sicinski
D-type cyclins (D1, D2 and D3) and their associated cyclin-dependent kinases (CDK4 and CDK6) are components of the core cell cycle machinery that drives cell proliferation. Inhibitors of CDK4 and CDK6 are currently being tested in clinical trials for patients with several cancer types, with promising results. Here, using human cancer cells and patient-derived xenografts in mice, we show that the cyclin D3-CDK6 kinase phosphorylates and inhibits the catalytic activity of two key enzymes in the glycolytic pathway, 6-phosphofructokinase and pyruvate kinase M2...
June 15, 2017: Nature
https://www.readbyqxmd.com/read/28603625/physiological-impact-of-high-flow-nasal-cannula-therapy-on-postextubation-acute-respiratory-failure-after-pediatric-cardiac-surgery-a-prospective-observational-study
#20
Naohiro Shioji, Tatsuo Iwasaki, Tomoyuki Kanazawa, Kazuyoshi Shimizu, Tomohiko Suemori, Kentaro Sugimoto, Yasutoshi Kuroe, Hiroshi Morimatsu
BACKGROUND: Reintubation after pediatric cardiac surgery is associated with a high rate of mortality. Therefore, adequate respiratory support for postextubation acute respiratory failure (ARF) is important. However, little is known about the physiological impact of high-flow nasal cannula (HFNC) therapy on ARF after pediatric cardiac surgery. Our working hypothesis was that HFNC therapy for postextubation ARF after pediatric cardiac surgery improves hemodynamic and respiratory parameters...
2017: Journal of Intensive Care
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