keyword
MENU ▼
Read by QxMD icon Read
search

Protective lung strategy

keyword
https://www.readbyqxmd.com/read/28339394/global-and-regional-assessment-of-sustained-inflation-pressure-volume-curves-in-patients-with-acute-respiratory-distress-syndrome
#1
Tobias Becher, Philipp Rostalski, Matthias Kott, Andy Adler, Dirk Schadler, Norbert Weiler, Inez Frerichs
Static or quasi-static pressure-volume (P-V) curves can be used to determine the lung mechanical properties of patients suffering from acute respiratory distress syndrome (ARDS). According to the traditional interpretation, lung recruitment occurs mainly below the lower point of maximum curvature (LPMC) of the inflation P-V curve. Although some studies have questioned this assumption, setting of positive end-expiratory pressure 2 cmH2O above the LPMC was part of a "lung-protective" ventilation strategy successfully applied in several clinical trials...
March 24, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28329234/revaccination-of-guinea-pigs-with-the-live-attenuated-mycobacterium-tuberculosis-vaccine-mtbvac-improves-bcg-s-protection-against-tuberculosis
#2
Simon Clark, Faye Lanni, Dessislava Marinova, Emma Rayner, Carlos Martin, Ann Williams
Background.: The need for an effective vaccine against human tuberculosis has driven the development of different candidates and vaccination strategies. Novel live attenuated vaccines are being developed that promise greater safety and efficacy than BCG against tuberculosis. We combined BCG with the vaccine MTBVAC to evaluate whether the efficacy of either vaccine would be affected upon revaccination. Methods.: In a well-established guinea pig model of aerosol infection with Mycobacterium tuberculosis, BCG and MTBVAC delivered via various prime-boost combinations or alone were compared...
January 25, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28322416/effect-of-intensive-vs-moderate-alveolar-recruitment-strategies-added-to-lung-protective-ventilation-on-postoperative-pulmonary-complications-a-randomized-clinical-trial
#3
Alcino Costa Leme, Ludhmila Abrahao Hajjar, Marcia S Volpe, Julia Tizue Fukushima, Roberta Ribeiro De Santis Santiago, Eduardo A Osawa, Juliano Pinheiro de Almeida, Aline Muller Gerent, Rafael Alves Franco, Maria Ignez Zanetti Feltrim, Emília Nozawa, Vera Regina de Moraes Coimbra, Rafael de Moraes Ianotti, Clarice Shiguemi Hashizume, Roberto Kalil Filho, Jose Otavio Costa Auler, Fabio Biscegli Jatene, Filomena Regina Barbosa Gomes Galas, Marcelo Britto Passos Amato
Importance: Perioperative lung-protective ventilation has been recommended to reduce pulmonary complications after cardiac surgery. The protective role of a small tidal volume (VT) has been established, whereas the added protection afforded by alveolar recruiting strategies remains controversial. Objective: To determine whether an intensive alveolar recruitment strategy could reduce postoperative pulmonary complications, when added to a protective ventilation with small VT...
March 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28322021/cytoprotective-and-antioxidant-effects-of-steen-solution-on-human-lung-spheroids-and-human-endothelial-cells
#4
Francesca Pagano, Cristina Nocella, Sebastiano Sciarretta, Luca Fianchini, Camilla Siciliano, Giorgio Mangino, Mohsen Ibrahim, Elena De Falco, Roberto Carnevale, Isotta Chimenti, Giacomo Frati
Respiratory diseases represent a major healthcare burden worldwide. Lung transplantation (LTx) is the gold-standard for end-stage patients, strongly limited by shortage of available/suitable donor lungs. Normothermic ex vivo lung perfusion (EVLP) has significantly increased the number of lungs suitable for transplantation. Steen solution is used for EVLP, but the mechanisms involved in its beneficial properties remain to be clarified. We investigated the effects of Steen solution in an in vitro protocol of cold starvation and normothermic recovery (CS/NR) on human lung spheroids, named pneumospheres (PSs), containing epithelial/basal cells, and on endothelial HUVEC cells...
March 20, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28317123/motion-management-strategies-and-technical-issues-associated-with-stereotactic-body-radiotherapy-of-thoracic-and-upper-abdominal-tumors-a-review-from-nrg-oncology
#5
Edward D Brandner, Indrin J Chetty, Tawfik G Giaddui, Ying Xiao, M Saiful Huq
The efficacy of stereotactic body radiotherapy (SBRT) has been well demonstrated. However, it presents unique challenges for accurate planning and delivery especially in the lungs and upper abdomen where respiratory motion can be significantly confounding accurate targeting and avoidance of normal tissues. In this paper we review the current literature on SBRT for lung and upper abdominal tumors with particular emphasis on addressing respiratory motion and its affects. We provide recommendations on strategies to manage motion for different, patient specific situations...
March 20, 2017: Medical Physics
https://www.readbyqxmd.com/read/28317022/water-dispersible-silica-coated-upconverting-liposomes-can-a-thin-silica-layer-protect-tta-uc-against-oxygen-quenching
#6
Sven H C Askes, Vincent C Leeuwenburgh, Wim Pomp, Hadi Arjmandi-Tash, Stefania Tanase, Thomas Schmidt, Sylvestre Bonnet
Light upconversion by triplet-triplet annihilation (TTA-UC) in nanoparticles has received considerable attention for bioimaging and light activation of prodrugs. However, the mechanism of TTA-UC is inherently sensitive for quenching by molecular oxygen. A potential oxygen protection strategy is the coating of TTA-UC nanoparticles with a layer of oxygen-impermeable material. In this work, we explore if (organo)silica can fulfill this protecting role. Three synthesis routes are described for preparing water-dispersible (organo)silica-coated red-to-blue upconverting liposomes...
March 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28315822/protective-effect-of-zerumbone-reduces-lipopolysaccharide-induced-acute-lung-injury-via-antioxidative-enzymes-and-nrf2-ho-1-pathway
#7
Wai-Shing Leung, Ming-Ling Yang, Shiuan-Shinn Lee, Chi-Wen Kuo, Yung-Chyuan Ho, Rosa Huang-Liu, Hui-Wen Lin, Yu-Hsiang Kuan
Acute lung injury (ALI) is a serious disease with high morbidity and mortality rate. Although there are effective strategies for treatment of ALI; a widely accepted specific pharmacotherapy has not yet established. Zerumbone, the major active phytochemical compound from Zingiber zerumbet Smith, exhibits various beneficial biological and pharmacological activities, such as antioxidation, anti-inflammation, immunomodulation, and anti-cancer. We aimed to study the potential protective effects and mechanisms of zerumbone in mouse model of lipopolysaccharide (LPS)-induced ALI...
March 15, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28315572/protective-effects-of-cucurbitacin-b-on-acute-lung-injury-induced-by-sepsis-in-rats
#8
Shu Hua, Xing Liu, Shuguang Lv, Zhifang Wang
BACKGROUND The aim of this study was to investigate the protective effects of cucurbitacin B (CuB) on sepsis-induced acute lung injury (ALI) in rats. MATERIAL AND METHODS An ALI model was made by cecal ligation and puncture (CLP) in SD rats. Rats were randomly divided into 5 groups (n=15 per group): animals undergoing a sham CLP (sham group); animals undergoing CLP (CLP control group); animals undergoing CLP and treated with CuB at 1 mg/kg of body weight (bw) (low-dose CuB [L-CuB] group), animals undergoing CuB at 2 mg/kg of bw (mid-dose CuB [M-CuB] group); and animals undergoing CuB at 5 mg/kg of bw (high-dose CuB [H-CuB] group)...
March 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28294285/evaluation-of-a-flexible-bronchoscope-prototype-designed-for-bronchoscopy-during-mechanical-ventilation-a-proof-of-concept-study
#9
M-A Nay, A Auvet, J Mankikian, V Herve, P-F Dequin, A Guillon
Bronchoscopy during mechanical ventilation of patients' lungs significantly affects ventilation because of partial obstruction of the tracheal tube, and may thus be omitted in the most severely ill patients. It has not previously been possible to reduce the external diameter of the bronchoscope without reducing the diameter of the suction channel, thus reducing the suctioning capacity of the device. We believed that a better-designed bronchoscope could improve the safety of bronchoscopy in patients whose lungs were ventilated...
March 14, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28288993/a-combined-pd-1-c5a-blockade-synergistically-protects-against-lung-cancer-growth-and-metastasis
#10
Daniel Ajona, Sergio Ortiz-Espinosa, Haritz Moreno, Teresa Lozano, Maria J Pajares, Jackeline Agorreta, Cristina Bértolo, Juan J Lasarte, Silvestre Vicent, Axel Vater, Fernando Lecanda, Luis M Montuenga, Ruben Pio
Disruption of the programmed cell death protein 1 (PD-1) pathway with immune checkpoint inhibitors represents a major breakthrough in the treatment of non-small cell lung cancer. We hypothesized that a combined inhibition of C5a/C5aR1 and PD-1 signaling may have an antitumor synergistic effect. RMP1-14 antibody was used to block PD-1 and an L-aptamer to inhibit signaling of complement C5a with its receptors. Using syngeneic models of lung cancer we demonstrate that the combination of C5a and PD-1 blockade markedly reduces tumor growth and metastasis, and leads to prolonged survival...
March 13, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28284294/optimal-strategies-for-severe-acute-respiratory-distress-syndrome
#11
REVIEW
Jeremy W Cannon, Jacob T Gutsche, Daniel Brodie
Acute respiratory distress syndrome (ARDS) occurs in more than 10% of intensive care unit admissions and in nearly 25% of ventilated patients. Mortality remains high at 40%, and, for patients who survive, recovery continues for months or even years. Early recognition and minimizing further lung injury remain essential to successful management of severe ARDS. Advanced treatment strategies, which complement lung protective ventilation, include short-term neuromuscular blockade, prone positioning, and extracorporeal membrane oxygenation...
April 2017: Critical Care Clinics
https://www.readbyqxmd.com/read/28275619/extracorporeal-membrane-oxygenation-in-the-pre-and-post-lung-transplant-period
#12
REVIEW
Nirmal S Sharma, Mathew G Hartwig, Don Hayes
Evolution in technology has resulted in rapid increase in utilization of extracorporeal membrane oxygenation (ECMO) as a bridge to recovery and/or transplantation. Although there is limited evidence for the use of ECMO, recent improvements in ECMO technology, personnel training, ambulatory practices on ECMO and lung protective strategies have resulted in improved outcomes in patients bridged to lung transplantation. This review provides an insight into the current outcomes and best practices for utilization of ECMO in the pre- and post-lung transplantation period...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28275225/low-flow-veno-venous-extracorporeal-co2-removal-for-acute-hypercapnic-respiratory-failure
#13
Matthias P Hilty, Thomas Riva, Silvia R Cottini, Eva-Maria Kleinert, Alessandra Maggiorini, Marco Maggiorini
BACKGROUND: Ventilation with low tidal volume and airway pressure results in a survival benefit in ARDS patients. Previous research suggests that avoiding mechanical ventilation altogether may be beneficial in some cases of respiratory failure. Our hypothesis was that low flow veno-venous extracorporeal CO2 removal (ECCO2R) enables maintenance of a lung protective ventilation strategy or awake spontaneous ventilation despite severe hypercapnic respiratory failure (HRF). METHODS: Twenty patients with HRF were investigated while mechanically ventilated (n=14) or breathing spontaneously close to respiratory exhaustion (n=6)...
March 8, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28275186/cpg-in-combination-with-an-inhibitor-of-notch-signaling-suppresses-fi-rsv-enhanced-airway-hyperresponsiveness-and-inflammation-through-inhibiting-th17-memory-responses-and-promoting-tissue-resident-memory-cells-in-lungs
#14
Lei Zhang, Hongyong Li, Yan Hai, Wei Yin, Wenjian Li, Boyang Zheng, Xiaomin Du, Na Li, Zhengzheng Zhang, Yuqing Deng, Ruihong Zeng, Lin Wei
Respiratory syncytial virus (RSV) is the leading cause of childhood hospitalizations. The formalin-inactivated RSV (FI-RSV) vaccine enhanced respiratory disease (ERD) has been an obstacle to the development of a safe and effective killed RSV vaccine. Agonists of Toll-like receptor (TLR) have been shown to regulate immune responses induced by FI-RSV. Notch signaling plays critical roles during the differentiation and effector function phases of innate and adaptive immune responses. Cross-talk between TLR and Notch signaling pathways results in fine tuning of TLR-triggered innate inflammatory responses...
March 8, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28274639/a-recombinant-subunit-vaccine-for-bovine-rsv-and-histophilus-somni-protects-calves-against-dual-pathogen-challenge
#15
Laurel J Gershwin, Nicole E Behrens, Heather A McEligot, Francisco R Carvallo-Chaigneau, Lauren T Crum, Brianna M Gunnarson, Lynette B Corbeil
Bovine respiratory syncytial virus (BRSV) and Histophilus somni synergize to cause respiratory disease in cattle. These pathogens cause enhanced disease during dual-infection and an IgE response to antigens of H. somni in dual-infected but not singly infected calves. Vaccines containing whole inactivated BRSV or H. somni have been associated with IgE responses A vaccine strategy that avoids stimulation of IgE antibodies would provide superior protection from dual infection. We hypothesized that a subunit vaccine consisting of the nucleoprotein (NP) from BRSV and the recombinant antigen IbpA DR2 (a surface antigen of H...
March 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28273121/polymer-micelle-formulation-for-the-proteasome-inhibitor-drug-carfilzomib-anticancer-efficacy-and-pharmacokinetic-studies-in-mice
#16
Ji Eun Park, Se-Eun Chun, Derek Reichel, Jee Sun Min, Su-Chan Lee, Songhee Han, Gongmi Ryoo, Yunseok Oh, Shin-Hyung Park, Heon-Min Ryu, Kyung Bo Kim, Ho-Young Lee, Soo Kyung Bae, Younsoo Bae, Wooin Lee
Carfilzomib (CFZ) is a peptide epoxyketone proteasome inhibitor approved for the treatment of multiple myeloma (MM). Despite the remarkable efficacy of CFZ against MM, the clinical trials in patients with solid cancers yielded rather disappointing results with minimal clinical benefits. Rapid degradation of CFZ in vivo and its poor penetration to tumor sites are considered to be major factors limiting its efficacy against solid cancers. We previously reported that polymer micelles (PMs) composed of biodegradable block copolymers poly(ethylene glycol) (PEG) and poly(caprolactone) (PCL) can improve the metabolic stability of CFZ in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28268159/protective-lung-strategies-a-cross-sectional-survey-of-nurses-knowledge-and-use-in-the-emergency-department
#17
Sarah Cornish, Rochelle Wynne, Sharon Klim, Anne-Maree Kelly
BACKGROUND: Mechanical ventilation (MV) is commonly used in emergency departments (EDs). Protective lung strategies (PLS), comprising of low tidal volume (6mL/kg), control of oxygen and plateau pressures, and administration of positive end expiratory pressure (PEEP) has been shown to reduces the risks associated with MV but there is little evidence exists about nurses' knowledge or application of PLS. Our aim was to explore nurses knowledge and application of PLS in Australian EDs. METHODS: Descriptive, exploratory design utilising an online questionnaire...
March 3, 2017: Australasian Emergency Nursing Journal: AENJ
https://www.readbyqxmd.com/read/28252538/dietary-supplementation-with-nonfermentable-fiber-alters-the-gut-microbiota-and-confers-protection-in-murine-models-of-sepsis
#18
Michael J Morowitz, Valentina Di Caro, Diana Pang, Jessica Cummings, Brian Firek, Matthew B Rogers, Sarangarajan Ranganathan, Robert S B Clark, Rajesh K Aneja
OBJECTIVES: Links between microbial alterations and systemic inflammation have been demonstrated in chronic disease, but little is known about these interactions during acute inflammation. This study investigates the effect of dietary supplementation with cellulose, a nonfermentable fiber, on the gut microbiota, inflammatory markers, and survival in two murine models of sepsis. DESIGN: Prospective experimental study. SETTING: University laboratory...
March 1, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28251431/48%C3%A2-h-cessation-of-mechanical-ventilation-during-venovenous-extracorporeal-membrane-oxygenation-in-severe-trauma-a-case-report
#19
Justyna Swol, Yann Fülling, Christopher Ull, Matthias Bechtel, Thomas A Schildhauer
A 32-year-old motorcyclist who was hit by a tram subsequently presented with blunt force thoracic trauma, a pelvic fracture and a penetrating injury to the left lower extremity. Coagulopathy persisted following surgery of the leg and pelvic vascular intervention. Bedside thoracotomy was performed to treat pneumothorax and pneumopericardium. Severe hypoxemia secondary to lung failure ensued, which required venovenous extracorporeal membrane oxygenation (VV ECMO) support. On the third day after the trauma, ultra-protective mechanical ventilation was not possible due to non-existent lung compliance; thus, the ventilator was disconnected, and the T-piece was connected to the blocked tracheal tube left in the airway...
March 1, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28247536/melatonin-regulates-parp1-to-control-the-senescence-associated-secretory-phenotype-sasp-in-human-fetal-lung-fibroblast-cells
#20
Songtao Yu, Xiaojiao Wang, Peiliang Geng, Xudong Tang, Lisha Xiang, Xin Lu, Jianjun Li, Zhihua Ruan, Jianfang Chen, Ganfeng Xie, Zhe Wang, Juanjuan Ou, Yuan Peng, Xi Luo, Xuan Zhang, Yan Dong, Hongshan Chen, Houjie Liang
Cellular senescence is an important tumor-suppressive mechanism. However, acquisition of a senescence-associated secretory phenotype (SASP) in senescent cells has deleterious effects on the tissue microenvironment and, paradoxically, promotes tumor progression. In a drug screen, we identified melatonin as a novel SASP suppressor in human cells. Strikingly, melatonin blunts global SASP gene expression upon oncogene-induced senescence (OIS). Moreover, poly(ADP-ribose) polymerase-1 (PARP-1), a sensor of DNA damage, was identified as a new melatonin-dependent regulator of SASP gene induction upon OIS...
March 1, 2017: Journal of Pineal Research
keyword
keyword
76404
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"