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https://www.readbyqxmd.com/read/29350567/pretreatment-of-ferulic-acid-attenuates-inflammation-and-oxidative-stress-in-a-rat-model-of-lipopolysaccharide-induced-acute-respiratory-distress-syndrome
#1
Sheng Zhang, Pengyu Wang, Pengxin Zhao, Dong Wang, Yanwei Zhang, Junhui Wang, Lixia Chen, Wenping Guo, Hui Gao, Yalou Jiao
Acute respiratory distress syndrome (ARDS) is a fatal clinical condition that can be caused by pulmonary and non-pulmonary diseases. Oxidative stress and inflammation play key roles in the development of ARDS. In this study, we investigated whether ferulic acid (FA), an anti-oxidant, was beneficial for prophylaxis of ARDS. We established an ARDS rat model using lipopolysaccharide (LPS) administration. Lung injury was assessed by lung wet/dry ratio and broncho-alveolar lavage fluid (BALF) analysis. Hematoxylin and eosin staining was performed to evaluate the histological changes of the lungs...
January 2018: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/29349250/best-worst-scaling-survey-of-preferences-regarding-the-adverse-effects-of-tobacco-use-in-china
#2
Takeshi Mori, Takahiro Tsuge
We use best-worst scaling to assess two types of concern levels of the adverse consequences of smoking in China. While the smoking cessation policy has worked well in Taiwan, more than 1 million people in mainland China are estimated to die every year from tobacco use. This study compares the preferences of Chinese individuals in the two jurisdictions (mainland versus Taiwan) and explores the possibility of information-based interventions. The relative importance of 13 adverse effects was assessed by conducting a web-based survey on a sample of 480 Chinese participants...
December 2017: SSM—Population Health
https://www.readbyqxmd.com/read/29348826/interaction-of-macrophages-with-apoptotic-cells-inhibits-transdifferentiation-and-invasion-of-lung-fibroblasts
#3
Yong-Bae Kim, Young-So Yoon, Youn-Hee Choi, Eun-Mi Park, Jihee Lee Kang
The invasion of activated fibroblasts is a key mechanism of tissue fibrosis pathology. The recognition and uptake of apoptotic cells can induce the anti-fibrogenic programming of macrophages. We demonstrate that after interacting with apoptotic cells, macrophages secrete bioactive molecules that antagonize TGF-β1-induced increases in myofibroblast (fibroproliferative) phenotypic markers and reduce the enhanced invasive capacity of TGF-β1- or EGF-treated mouse lung fibroblasts (MLg). Furthermore, numerous treatment strategies prevented the anti-fibrotic effects of conditioned media, including transfection of macrophages with COX-2 or RhoA siRNAs or treatment of MLg cells with receptor antagonists for prostaglandin E2 (PGE2), PGD2, or hepatocyte growth factor (HGF)...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348183/neurophysiological-mechanisms-of-exertional-dyspnoea-in-fibrotic-interstitial-lung-disease
#4
Michele R Schaeffer, Christopher J Ryerson, Andrew H Ramsook, Yannick Molgat-Seon, Sabrina S Wilkie, Satvir S Dhillon, Reid A Mitchell, A William Sheel, Nasreen Khalil, Pat G Camp, Jordan A Guenette
Our understanding of the mechanisms of dyspnoea in fibrotic interstitial lung disease (ILD) is incomplete. The aims of this study were two-fold: 1) to determine whether dyspnoea intensity is better predicted by neural respiratory drive (NRD) or neuromechanical uncoupling (NMU) of the respiratory system in fibrotic ILD, and 2) to examine the effect of breathing 60% oxygen on NRD, NMU and dyspnoea ratings.Fourteen patients with fibrotic ILD were included. Visit 1 comprised a familiarisation incremental cycle exercise test, Visit 2 comprised a normoxic incremental cycling test to address Aim 1, and Visits 3 and 4 consisted of constant-load cycling while breathing room air or 60% oxygen to address Aim 2...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29348178/a-scoring-system-to-predict-the-elevation-of-mean-pulmonary-arterial-pressure-in-idiopathic-pulmonary-fibrosis
#5
Taiki Furukawa, Yasuhiro Kondoh, Hiroyuki Taniguchi, Mitsuaki Yagi, Toshiaki Matsuda, Tomoki Kimura, Kensuke Kataoka, Takeshi Johkoh, Masahiko Ando, Naozumi Hashimoto, Koji Sakamoto, Yoshinori Hasegawa
Elevated mean pulmonary arterial pressure (MPAP; ≥21 mmHg) is sometimes seen in patients with idiopathic pulmonary fibrosis (IPF) and has an adverse impact upon survival. Although early diagnosis is crucial, there is no established screening tool that uses a combination of noninvasive examinations.We retrospectively analysed IPF patients at initial evaluation from April 2007 to July 2015 and, using logistic regression analysis, created a screening tool to identify elevated MPAP. Internal validation was also assessed for external validity using a bootstrap method...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29348151/ahrr-hypomethylation-lung-function-lung-function-decline-and-respiratory-symptoms
#6
Jakob B Kodal, Camilla J Kobylecki, Signe Vedel-Krogh, Børge G Nordestgaard, Stig E Bojesen
Introduction: Epigenome wide association studies have shown a consistent association between smoking exposure and hypomethylation in the aryl hydrocarbon receptor repressor(AHRR) gene(cg05575921). We tested the hypothesis that AHRR hypomethylation is associated with low lung function, steeper lung function decline, and respiratory symptoms in the general population.Methods:AHRR methylation extent was measured in 9113 individuals from the 1991-1994 examination of the Copenhagen City Heart Study, using bisulfite treated leucocyte DNA...
January 18, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29347936/comparative-analysis-of-copd-associated-with-tobacco-smoking-biomass-smoke-exposure-or-both
#7
Jordi Olloquequi, Sergio Jaime, Viviana Parra, Elizabeth Cornejo-Córdova, Gonzalo Valdivia, Àlvar Agustí, Rafael Silva O
BACKGROUND: Exposure to noxious gases and particles contained in both tobacco smoking (TS) and biomass smoke (BS) are well recognized environmental risk factors for chronic obstructive pulmonary disease (COPD). COPD is characterized by an abnormal inflammatory response, both in the pulmonary and systemic compartments. The differential effects of TS, BS or their combined exposure have not been well characterized yet. This study sought to compare the lung function characteristics and systemic inflammatory response in COPD patients exposed to TS, BS or their combination...
January 18, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29345431/the-effect-of-diuresis-on-extravascular-lung-water-and-pulmonary-function-in-acute-decompensated-heart-failure
#8
Steven C Chase, Caitlin C Fermoyle, Courtney M Wheatley, Jacob J Schaefer, Lyle J Olson, Bruce D Johnson
AIMS: The effect of extravascular lung water (EVLW) and relationship to functional status as a result of acute decompensated heart failure (ADHF) are not well understood. We sought to quantify changes in clinical variables, EVLW, airway anatomy, spirometry, and diffusing capacity for carbon monoxide before and after treatment for ADHF. METHODS AND RESULTS: Fifteen patients were recruited within 24 h of hospital admission. Spirometry, diffusing capacity for carbon monoxide, and surrogates of EVLW by computed tomography were measured and were then repeated within 24 h of discharge...
January 18, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29345365/deletion-of-bcg-hip1-protease-enhances-dendritic-cell-and-cd4-t-cell-responses
#9
Erica Bizzell, Jonathan Kevin Sia, Melanie Quezada, Ana Enriquez, Maria Georgieva, Jyothi Rengarajan
Dendritic cells (DCs) play a key role in the generation of CD4 T cell responses to pathogens. Mycobacterium tuberculosis (Mtb) harbors immune evasion mechanisms that impair DC responses and prevent optimal CD4 T cell immunity. The vaccine strain Mycobacterium bovis Bacille Calmette-Guérin (BCG) shares many of the immune evasion proteins utilized by Mtb, but the role of these proteins in DC and T cell responses elicited by BCG is poorly understood. We previously reported that the Mtb serine protease, Hip1, promotes sub-optimal DC responses during infection...
December 28, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345293/s100b-expression-in-breast-cancer-as-a-predictive-marker-for-cancer-metastasis
#10
Meng-Chi Yen, Yung-Chi Huang, Jung-Yu Kan, Po-Lin Kuo, Ming-Feng Hou, Ya-Ling Hsu
In the tumor microenvironment, soluble molecules play important role in the establishment of a pre-metastatic niche. The S100 calcium-binding protein family are inflammatory molecules that contribute to the development of a pro-inflammatory tumor microenvironment. S100B belongs to the S100 family and serum S100B (also known as S100beta) serves as a marker for metastasis in lung cancer, ovarian cancer and melanoma. However, the association between S100B and the metastasis of breast cancer is not yet well understood...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29345117/candida-auris-a-systematic-review-and-meta-analysis-of-current-updates-on-an-emerging-multidrug-resistant-pathogen
#11
John Osei Sekyere
From 2009, Candida auris has emerged as a multidrug-resistant ascomycete yeast pathogen with the capacity for easy transmission between patients and hospitals, as well as persistence on environmental surfaces. Its association with high mortalities, breakthrough and persistent candidaemia, inconsistencies in susceptibility testing results, misidentification by available commercial identification systems and treatment failure, complicates its management and detection. Within the last nine years, C. auris has been increasingly reported from far-Eastern Asia, the Middle East, Africa, Europe, South and North America with substantial fatalities and misidentification...
January 18, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29344809/regeneration-of-functional-alveoli-by-adult-human-sox9-airway-basal-cell-transplantation
#12
Qiwang Ma, Yu Ma, Xiaotian Dai, Tao Ren, Yingjie Fu, Wenbin Liu, Yufei Han, Yingchuan Wu, Yu Cheng, Ting Zhang, Wei Zuo
Irreversible destruction of bronchi and alveoli can lead to multiple incurable lung diseases. Identifying lung stem/progenitor cells with regenerative capacity and utilizing them to reconstruct functional tissue is one of the biggest hopes to reverse the damage and cure such diseases. Here we showed that a rare population of SOX9+ basal cells (BCs) located at airway epithelium rugae can regenerate adult human lung. Human SOX9+ BCs can be readily isolated by bronchoscopic brushing and indefinitely expanded in feeder-free condition...
January 17, 2018: Protein & Cell
https://www.readbyqxmd.com/read/29344798/association-between-values-of-preoperative-6-min-walk-test-and-surgical-outcomes-in-lung-cancer-patients-with-decreased-predicted-postoperative-pulmonary-function
#13
Tatsuo Nakagawa, Yasuaki Tomioka, Toshiya Toyazaki, Masashi Gotoh
OBJECTIVE: We retrospectively investigated the possibility that the 6-min walk test (6MWT) could predict surgical outcomes in lung cancer patients with decreased predicted postoperative (ppo) lung function. METHODS: Patients were enrolled based on their preoperative spirometry: <60% of the ppo forced expiratory volume in 1 s (FEV1.0) or < 60% of the ppo lung carbon monoxide diffusion capacity (DLco). Morbidity, oxygen inhalation required > 10 days, home oxygen therapy (HOT) requirement, unexpected readmission within 90 days, and 90-day mortality were included as surgical outcomes...
January 17, 2018: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29343951/risk-factors-predict-frequent-hospitalization-in-patients-with-acute-exacerbation-of-copd
#14
Xia Wei, Zhengquan Ma, Nan Yu, Jingting Ren, Chenwang Jin, Jiuyun Mi, Meijuan Shi, Libin Tian, Yanzhong Gao, Youmin Guo
Purpose: COPD is a heterogeneous disease, and the available prognostic indexes are therefore limited. This study aimed to identify the factors associated with acute exacerbation leading to hospitalization. Patients and methods: This was a retrospective study of consecutive patients with COPD (meeting the Global Initiative for Chronic Obstructive Lung Disease [GOLD] diagnostic criteria) hospitalized at the Ninth Hospital of Xi'an Affiliated Hospital of Xi'an Jiaotong University between October 2014 and September 2016...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29343426/environmental-mycobacterium-avium-subsp-hominissuis-have-a-higher-probability-to-act-as-a-recipient-in-conjugation-than-clinical-strains
#15
Salma A Shoulah, Anna M Oschmann, Abdelfattah Selim, Torsten Semmler, Carsten Schwarz, Elisabeth Kamal, Faysal Hamouda, Elsayed Galila, Wilbert Bitter, Astrid Lewin
Mycobacterium avium subsp. hominissuis (MAH) is a widespread opportunistic pathogen that can be isolated from environment (dust, soil and water) and patients with lung or lymphnode infection. In our previous research we revealed the pronounced genetic diversity in MAH by identifying eight different types of a newly described genomic island. In order to identify mechanisms of such horizontal gene transfer we now analyzed the ability of 47 MAH isolates to inherit the conjugative plasmid pRAW from M. marinum. A higher percentage of environmental isolates (22...
January 14, 2018: Plasmid
https://www.readbyqxmd.com/read/29342980/dietary-intake-of-flavonoids-and-ventilatory-function-in-european-adults-a-ga%C3%A2-len-study
#16
Vanessa Garcia-Larsen, Narjis Thawer, David Charles, Aedin Cassidy, Thibaut van Zele, Trine Thilsing, Matti Ahlström, Tari Haahtela, Thomas Keil, Paolo M Matricardi, Grzegorz Brożek, Marek L Kowalski, Joanna Makowska, Ewa Niżankowska-Mogilnicka, Barbara Rymarczyk, Carlos Loureiro, Ana Todo Bom, Claus Bachert, Bertil Forsberg, Christer Janson, Kjell Torén, James F Potts, Peter Gj Burney
BACKGROUND: Flavonoids exert anti-inflammatory properties and modulate oxidative stress in vitro, suggesting a protective effect on lung function, but epidemiological studies examining this association are scarce. METHODS: A stratified random sample was drawn from the GA²LEN screening survey, in which 55,000 adults aged 15 to 75 answered a questionnaire on respiratory symptoms. Post-bronchodilator spirometry was obtained from 2850 subjects. Forced vital capacity (FVC), the ratio between the forced exhaled volume in 1 second (FEV₁) and FVC (FEV₁/FVC), FVC below lower limit of normal (FVC < LLN), and FEV₁/FVC < LLN were calculated...
January 15, 2018: Nutrients
https://www.readbyqxmd.com/read/29340488/impact-of-continuous-positive-airway-pressure-on-the-pulmonary-changes-promoted-by-immersion-in-water
#17
Danize Aparecida Rizzetti, Janayna Rodembuch Borba Quadros, Bruna Esmerio Ribeiro, Letícia Callegaro, Aline Arebalo Veppo, Giulia Alessandra Wiggers, Franck Maciel Peçanha
OBJECTIVE: To determine whether different levels of CPAP improve the lung volumes and capacities of healthy subjects immersed in water. METHODS: This was a randomized clinical trial, conducted between April and June of 2016, involving healthy female volunteers who were using oral contraceptives. Three 20-min immersion protocols were applied: control (no CPAP); CPAP5 (CPAP at 5 cmH2O); and CPAP10 (CPAP at 10 cmH2O). We evaluated HR, SpO2, FVC, FEV1, the FEV1/FVC ratio, peak expiratory flow rate (PEFR), and FEF25-75%) at three time points: pre-immersion; 10 min after immersion; and 10 min after the end of each protocol...
November 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29340151/reference-values-for-spirometry-in-elderly-individuals-a-cross-sectional-study-of-different-reference-equations
#18
Joana Belo, Teresa Palmeiro, Iolanda Caires, Ana L Papoila, Marta Alves, Pedro Carreiro-Martins, Maria A Botelho, Nuno Neuparth
Background: Spirometry is the single most important test for the evaluation of respiratory function. The results are interpreted by comparing measured data with predicted values previously obtained from a reference population. Reference equations for spirometry have been discussed previously. The aim of this study was to compare reference values based on National Health and Nutrition Assessment Survey (NHANES III), European Community of Steel and Coal (ECSC), and Global Lung Initiative (GLI) equations in an elderly sample population...
2018: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/29339729/ecotropic-viral-integration-site-1-promotes-metastasis-independent-of-epithelial-mesenchymal-transition-in-colon-cancer-cells
#19
Kasturi Bala Nayak, I S Sajitha, T R Santhosh Kumar, Soumen Chakraborty
The most indecipherable component of solid cancer is the development of metastasis which accounts for more than 90% of cancer-related mortalities. A developmental program termed epithelial-mesenchymal transition (EMT) has also been shown to play a critical role in promoting metastasis in epithelium-derived solid tumors. By analyzing publicly available microarray datasets, we observed that ecotropic viral integration site 1 (EVI1) correlates negatively with SLUG, a master regulator of EMT. This correlation was found to be relevant as we demonstrated that EVI1 binds to SLUG promoter element directly through the distal set of zinc fingers and downregulates its expression...
January 16, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29337640/molecular-determinants-of-response-to-anti-programmed-cell-death-pd-1-and-anti-programmed-death-ligand-pd-l-ligand-1-blockade-in-patients-with-non-small-cell-lung-cancer-profiled-with-targeted-next-generation-sequencing
#20
Hira Rizvi, Francisco Sanchez-Vega, Konnor La, Walid Chatila, Philip Jonsson, Darragh Halpenny, Andrew Plodkowski, Niamh Long, Jennifer L Sauter, Natasha Rekhtman, Travis Hollmann, Kurt A Schalper, Justin F Gainor, Ronglai Shen, Ai Ni, Kathryn C Arbour, Taha Merghoub, Jedd Wolchok, Alexandra Snyder, Jamie E Chaft, Mark G Kris, Charles M Rudin, Nicholas D Socci, Michael F Berger, Barry S Taylor, Ahmet Zehir, David B Solit, Maria E Arcila, Marc Ladanyi, Gregory J Riely, Nikolaus Schultz, Matthew D Hellmann
Purpose Treatment of advanced non-small-cell lung cancer with immune checkpoint inhibitors (ICIs) is characterized by durable responses and improved survival in a subset of patients. Clinically available tools to optimize use of ICIs and understand the molecular determinants of response are needed. Targeted next-generation sequencing (NGS) is increasingly routine, but its role in identifying predictors of response to ICIs is not known. Methods Detailed clinical annotation and response data were collected for patients with advanced non-small-cell lung cancer treated with anti-programmed death-1 or anti-programmed death-ligand 1 [anti-programmed cell death (PD)-1] therapy and profiled by targeted NGS (MSK-IMPACT; n = 240)...
January 16, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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