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https://www.readbyqxmd.com/read/28727738/propagation-characteristics-of-pulverized-coal-and-gas-two-phase-flow-during-an-outburst
#1
Aitao Zhou, Kai Wang, Lingpeng Fan, Bo Tao
Coal and gas outbursts are dynamic failures that can involve the ejection of thousands tons of pulverized coal, as well as considerable volumes of gas, into a limited working space within a short period. The two-phase flow of gas and pulverized coal that occurs during an outburst can lead to fatalities and destroy underground equipment. This article examines the interaction mechanism between pulverized coal and gas flow. Based on the role of gas expansion energy in the development stage of outbursts, a numerical simulation method is proposed for investigating the propagation characteristics of the two-phase flow...
2017: PloS One
https://www.readbyqxmd.com/read/28725326/comparison-of-clopidogrel-with-prasugrel-and-ticagrelor-in-patients-with-acute-coronary-syndrome-clinical-outcomes-from-the-national-cardiovascular-database-action-registry
#2
Mohamed Khayata, Joseph N Gabra, M Farhan Nasser, George I Litman, Shyam Bhakta, Rupesh Raina
BACKGROUND: We aimed to compare the clinical outcomes of clopidogrel, prasugrel, and ticagrelor in clinical practice using the National Cardiovascular Database ACTION Registry(®). Treatment guidelines for patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention recommend dual antiplatelet therapy (DAPT) for 12 months. Few clinical trials have compared the safety and efficacy of clopidogrel with that of newer antiplatelet therapies. METHODS: A retrospective study of patients hospitalized for ACS at Cleveland Clinic Akron General was conducted...
June 2017: Cardiology Research
https://www.readbyqxmd.com/read/28724629/abrogation-of-heat-shock-factor-1-hsf1-phosphorylation-deregulates-its-activity-and-lowers-activation-threshold-leading-to-obesity-in-mice
#3
Xiongjie Jin, Aijun Qiao, Demetrius Moskophidis, Nahid F Mivechi
Heat shock factor 1 (Hsf1) is transcriptionally activated following exposure of mammalian cells to environmental insults and pathological conditions. The function of Hsf1 as a protector of cells and organisms towards a range of stress stimuli has been well-documented. However, how different Hsf1 post-transcriptional modifications affect its function in vivo is not understood. Hsf1 transcriptional activity is in part regulated by phosphorylation. Hsf1 phosphorylation of amino acid residues at S303 and S307 has been shown to repress Hsf1 transcriptional activity under normal physiological growth conditions...
July 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28723944/application-of-mass-spectrometry-to-elucidate-the-pathophysiology-of-encephalitozoon-cuniculi-infection-in-rabbits
#4
Guillaume Desoubeaux, Maria Del Carmen Piqueras, Ana Pantin, Sanjoy K Bhattacharya, Roman Peschke, Anja Joachim, Carolyn Cray
Encephalitozoon cuniculi is a microsporidian species which can induce subclinical to serious disease in mammals including rabbits, a definitive natural host. The pathophysiology of infection has not been comprehensively elucidated. In this exploratory study, we utilized two mass spectrometry approaches: first, the analysis of the humoral response by profiling the microsporidian antigens as revealed by Western blot screening, and second, implementing the iTRAQ®-labeling protocol to focus on the changes within the host proteome during infection...
2017: PloS One
https://www.readbyqxmd.com/read/28722827/being-diagnosed-with-cancer-the-experiences-of-patients-with-non-hodgkin-s-lymphoma
#5
Daren Chircop, Josianne Scerri
AIMS AND OBJECTIVES: The aim of this study was to explore the lived experiences of patients on receiving a diagnosis of non-Hodgkin's lymphoma. BACKGROUND: Persons with non-Hodgkin's lymphoma are often diagnosed with cancer when at an advanced stage. This may arise due to a lack of screening programs and delays in help seeking as the symptoms experienced are fairly non-specific in nature. Consequently, receiving an unexpected diagnosis of non-Hodgkin's lymphoma may pose a psychosocial challenge to the individual...
July 19, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28721857/stress-adaptation
#6
Alistair J P Brown, Leah E Cowen, Antonio di Pietro, Janet Quinn
Fungal species display an extraordinarily diverse range of lifestyles. Nevertheless, the survival of each species depends on its ability to sense and respond to changes in its natural environment. Environmental changes such as fluctuations in temperature, water balance or pH, or exposure to chemical insults such as reactive oxygen and nitrogen species exert stresses that perturb cellular homeostasis and cause molecular damage to the fungal cell. Consequently, fungi have evolved mechanisms to repair this damage, detoxify chemical insults, and restore cellular homeostasis...
July 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28717623/chondrocytes-treated-with-different-shock-wave-devices
#7
Angela Notarnicola, Florenzo Iannone, Giuseppe Maccagnano, Nuniza Lacarpia, Dorotea Bizzoca, Biagio Moretti
BACKGROUND: Shock wave treatment is used for several orthopedic diseases and there are different devices available. Until now, there have been no experimental studies on the effects of these different generators. METHODS: We carried out an experimental study to compare the effects of three focused generators (electro-magnetic, piezoelectric and electro-hydraulic) as well as a radial generator on healthy and osteoarthritis chondrocytes. RESULTS: By the analysis of our results, we may exclude significant differences between the different generators, even though there is a greater action specificity for electro-magnetic and piezoelectric generators...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28717426/extracellular-vesicles-released-following-heat-stress-induce-bystander-effect-in-unstressed-populations
#8
Findlay Bewicke-Copley, Laura Ann Mulcahy, Laura Ann Jacobs, Priya Samuel, Naveed Akbar, Ryan Charles Pink, David Raul Francisco Carter
Cells naïve to stress can display the effects of stress, such as DNA damage and apoptosis, when they are exposed to signals from stressed cells; this phenomenon is known as the bystander effect. We previously showed that bystander effect induced by ionising radiation are mediated by extracellular vesicles (EVs). Bystander effect can also be induced by other types of stress, including heat shock, but it is unclear whether EVs are involved. Here we show that EVs released from heat shocked cells are also able to induce bystander damage in unstressed populations...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28717248/loss-of-type-9-adenylyl-cyclase-triggers-reduced-phosphorylation-of-hsp20-and-diastolic-dysfunction
#9
Yong Li, Tanya A Baldwin, Yan Wang, Janani Subramaniam, Anibal Garza Carbajal, Cameron S Brand, Shane R Cunha, Carmen W Dessauer
Adenylyl cyclase type 9 (AC9) is found tightly associated with the scaffolding protein Yotiao and the IKs ion channel in heart. But apart from potential IKs regulation, physiological roles for AC9 are unknown. We show that loss of AC9 in mice reduces less than 3% of total AC activity in heart but eliminates Yotiao-associated AC activity. AC9(-/-) mice exhibit no structural abnormalities but show a significant bradycardia, consistent with AC9 expression in sinoatrial node. Global changes in PKA phosphorylation patterns are not altered in AC9(-/-) heart, however, basal phosphorylation of heat shock protein 20 (Hsp20) is significantly decreased...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716363/clinical-outcomes-and-prognostic-factors-of-patients-with-severe-influenza-receiving-intravenous-peramivir-salvage-therapy-in-intensive-care-units
#10
Ching-Yuan Yeh, Fu-Der Wang, Yu-Chung Chuang, Chia-Jui Yang, Shiang-Fen Huang, Wen-Sung Weng, Chun-Hsin Liaw, Wang-Huei Sheng
BACKGROUND: Few studies have investigated patients with severe influenza who receive intravenous peramivir for salvage therapy. METHODS: We retrospectively analyzed data from 71 patients with severe influenza who received intravenous peramivir therapy in the intensive care units of three medical centers between 2012 and 2016. All patients received oseltamivir or zanamivir before the administration of peramivir. RESULTS: A total of 44 men and 27 women with a median age of 55 years were enrolled...
June 26, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28715921/the-role-of-secreted-heat-shock-protein-90-hsp90-in-wound-healing-how-could-it-shape-future-therapeutics
#11
Jiacong Guo, Cheng Chang, Wei Li
Defects in tissue repair or wound healing pose a clinical, economic and social problem worldwide. Despite decades of studies, there have been few effective therapeutic treatments. Areas covered: We discuss the possible reasons for why growth factor therapy did not succeed. We point out the lack of human disorder-relevant animal models as another blockade for therapeutic development. We summarize the recent discovery of secreted heat shock protein-90 (Hsp90) as a novel wound healing agent. Expert commentary: Wound healing is a highly complex and multistep process that requires participations of many cell types, extracellular matrices and soluble molecules to work together in a spatial and temporal fashion within the wound microenvironment...
July 18, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28715125/acute-alcohol-binge-deteriorates-metabolic-and-respiratory-compensation-capability-after-blunt-chest-trauma-followed-by-hemorrhagic-shock-a-new-research-model
#12
Nils Wagner, Niklas Franz, Scott Dieteren, Mario Perl, Katharina Mörs, Ingo Marzi, Borna Relja
BACKGROUND AND PURPOSE: The clinical relevance of blunt (thoracic) chest trauma (TxT) and hemorrhagic shock is indisputable due to the high prevalence of this injury type, as well as its close association with mortality and/or preventable deaths. Furthermore, there is an ongoing discussion about the influence of alcohol in trauma patients. Thus, we established a model of TxT followed by hemorrhagic shock and resuscitation (H/R) in alcohol-intoxicated rats. EXPERIMENTAL APPROACH: Depending on group allocation, twelve (sub-acute) or two (acute) hours before experimentation, the animals received a single oral dose of alcohol (ethanol, EtOH) or saline (NaCl) followed by TxT, hemorrhagic shock (35 ± 3 mm Hg) and resuscitation (TxT+H/R)...
July 17, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28710988/intestinal-fatty-acid-binding-protein-level-as-a-predictor-of-28-day-mortality-and-bowel-ischemia-in-patients-with-septic-shock-a-preliminary-study
#13
Motohiro Sekino, Hiroyuki Funaoka, Shuntaro Sato, Kyoko Okada, Haruka Inoue, Rintaro Yano, Sojiro Matsumoto, Taiga Ichinomiya, Ushio Higashijima, Shuhei Matsumoto, Tetsuya Hara
PURPOSE: We sought to evaluate the levels of intestinal fatty acid-binding protein (I-FABP), a biomarker of enterocyte injury, as a predictor of 28-day mortality and bowel ischemia in septic shock patients. MATERIAL AND METHODS: In this preliminary prospective observational study, 57 adult septic shock patients under mechanical ventilation were enrolled. Serum I-FABP levels and prognostic biomarkers were recorded upon intensive care unit (ICU) admission. RESULTS: The overall 28-day mortality rate of participants was 23% (13/57)...
July 6, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28710795/phospholipase-d-%C3%AE-negatively-regulates-plant-thermotolerance-by-destabilizing-cortical-microtubules-in-arabidopsis
#14
Qun Zhang, Ping Song, Yana Qu, Peipei Wang, Qianru Jia, Liang Guo, Chuanpeng Zhang, Tonglin Mao, Ming Yuan, Xuemin Wang, Wenhua Zhang
The pattern of cortical microtubule arrays plays an important role in plant growth and adaptation in response to hormonal and environmental changes. Cortical microtubules are connected with the plasma membrane (PM); however, how the membrane affects cortical microtubule organization is not well understood. Here, we showed that phospholipase Dδ (PLDδ) was associated with the PM and co-localized with microtubules in cells. In vitro analysis revealed that PLDδ bound to microtubules, resulting in microtubule disorganization...
July 14, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28709648/deficiency-in-cold-inducible-rna-binding-protein-attenuates-acute-respiratory-distress-syndrome-induced-by-intestinal-ischemia-reperfusion
#15
Cindy Cen, Joseph McGinn, Monowar Aziz, Weng-Lang Yang, Joaquin Cagliani, Jeffrey M Nicastro, Gene F Coppa, Ping Wang
BACKGROUND: Intestinal ischemia-reperfusion can occur in shock and mesenteric occlusive diseases, causing significant morbidity and mortality. Aside from local injury, intestinal ischemia-reperfusion can result in remote organ damage, particularly in the lungs. Cold-inducible RNA-binding protein (CIRP) was identified as a novel inflammatory mediator. We hypothesized that a deficiency in CIRP would protect the lungs during intestinal ischemia-reperfusion injury. METHODS: Intestinal ischemia was induced in adult male C57BL/6 wild-type and CIRP knock-out (CIRP(-/-)) mice via clamping of the superior mesenteric artery for 60 minutes...
July 11, 2017: Surgery
https://www.readbyqxmd.com/read/28708463/epidemiological-trends-observed-from-molecular-characterization-of-methicillin-resistant-staphylococcus-aureus-isolates-from-blood-cultures-at-a-japanese-university-hospital-2012-2015
#16
Yuri Miura, Tetsuo Yamaguchi, Itaru Nakamura, Shinobu Koyama, Kiyoko Tamai, Takashi Okanda, Tetsuya Matsumoto
Despite increasing reports of skin and soft tissue infections caused by community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) in Japan, the extent to which these strains cause nosocomial infections remains unknown, and this is especially true for bloodstream infections. In this study, we molecularly characterized MRSA isolates from Japanese blood samples. Among the 151 MRSA isolates collected from 53 medical facilities in 2011, 115 (76%) and 30 (20%) were classified as staphylococcal cassette chromosome mec (SCCmec) types II and IV, respectively, while the Panton-Valentine leukocidin (PVL) gene was detected in only two isolates...
July 14, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28705768/the-clinical-and-microbiological-characteristics-of-infections-in-burn-patients-from-the-formosa-fun-coast-dust-explosion
#17
Tzu-Chao Lin, Rui-Xin Wu, Chih-Chien Chiu, Ya-Sung Yang, Yi Lee, Jung-Chung Lin, Feng-Yee Chang
BACKGROUND/PURPOSE: Bloodstream infection is a leading cause of mortality among burn patients. This study aimed to evaluate the risk factors, causative pathogens, and the relationship between bloodstream infections and other infections among burn patients from the Formosa Fun Coast Dust Explosion. METHODS: This retrospective study evaluated the demographic and clinical characteristics, infection types, causative pathogen(s), and isolates' antibiotic susceptibilities from patients who were hospitalized between June 27 and September 31, 2015...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28705427/invasive-disease-by-streptococcus-pyogenes-patients-hospitalized-for-6-years
#18
Vanessa Arias-Constantí, Victoria Trenchs-Sainz de la Maza, Nuria Elvira Sanz-Marcos, Carmina Guitart-Pardellans, Amadeu Gené-Giralt, Carles Luaces-Cubells
INTRODUCTION AND OBJECTIVE: The last years an increase of severe cases of invasive disease (ID) due to Streptococcus pyogenes or streptococcus b-hemolytic group A (SGA) had been detected. The aim of this study was to analyze the epidemiology and the clinical features of ID due to SGA in a tertiary Pediatric Hospital. MATERIAL AND METHODS: Retrospective study in a Pediatric hospital, of all in-patients with final diagnosis of ID due to SGA during 6 years (2009-2014)...
July 10, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28705174/extensive-colorectal-lymphomatous-polyposis-complicated-by-acute-intestinal-obstruction-a-case-report
#19
Jaques Waisberg, Amanda do Val Anderi, Pedro Augusto Soffner Cardoso, José Henrique Miranda Borducchi, Demetrius Eduardo Germini, Maria Isete Fares Franco, Cidia Vasconcellos
BACKGROUND: Multiple lymphomatous polyposis is a rare type of gastrointestinal lymphoma that extensively infiltrates the intestine. Multiple lymphomatous polyposis originates from the mantle zone of the lymphoma follicle and is considered to be a mantle cell lymphoma, which is a relatively aggressive type of B-cell non-Hodgkin's lymphoma. We report an unusual case of a patient with multiple lymphomatous polyposis with extensive colorectal involvement and acute intestinal obstruction, an atypical complication of this rare disease...
July 13, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28704449/postfire-responses-of-the-woody-flora-of-central-chile-insights-from-a-germination-experiment
#20
Susana Gómez-González, Susana Paula, Lohengrin A Cavieres, Juli G Pausas
Fire is a selective agent shaping plant traits and community assembly in fire-prone ecosystems. However, in ecosystems with no fire history, it can be a cause of land degradation when it is suddenly introduced by humans, as plant species may not be able to respond to such novel disturbance. Unlike other Mediterranean-type ecosystems (MTE) of the world, natural fires have not been frequent during the Quaternary in the matorral of Central Chile, and thus, plant adaptive responses are expected to be uncommon. We evaluated the effect of heat shock on seed survival and germination of 21 native woody plants of the Chilean matorral and compiled information on smoke-stimulation and resprouting, to evaluate the importance of fire-adaptive responses in the context of the other MTE...
2017: PloS One
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