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Thorax

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https://www.readbyqxmd.com/read/28729298/rapid-decline-in-lung-function-is-temporally-associated-with-greater-metabolically-active-adiposity-in-a-longitudinal-study-of-healthy-adults
#1
Maan Moualla, Clifford Qualls, Alexander Arynchyn, Bharat Thyagarajan, Ravi Kalhan, Lewis J Smith, John J Carr, David R Jacobs, Akshay Sood
RATIONALE: Adiposity is associated with low lung function, but the longitudinal relationship between lung function and adiposity is inadequately studied. OBJECTIVE: To examine the bidirectional longitudinal associations between rapid decline in lung function and adiposity phenotypes in healthy adults. METHODS: This secondary analysis used a 25-year longitudinal dataset from the Coronary Artery Risk Development in Young Adults (CARDIA) study that enrolled 5115 participants...
July 20, 2017: Thorax
https://www.readbyqxmd.com/read/28724640/defining-the-path-lung-cancer-ct-screening-in-europe
#2
EDITORIAL
Matthew E Callister, Sam M Janes
No abstract text is available yet for this article.
July 19, 2017: Thorax
https://www.readbyqxmd.com/read/28724639/production-of-reactive-persulfide-species-in-chronic-obstructive-pulmonary-disease
#3
Tadahisa Numakura, Hisatoshi Sugiura, Takaaki Akaike, Tomoaki Ida, Shigemoto Fujii, Akira Koarai, Mitsuhiro Yamada, Katsuhiro Onodera, Yuichiro Hashimoto, Rie Tanaka, Kei Sato, Yutaka Shishikura, Taizou Hirano, Satoru Yanagisawa, Naoya Fujino, Tatsuma Okazaki, Tsutomu Tamada, Yasushi Hoshikawa, Yoshinori Okada, Masakazu Ichinose
BACKGROUND: Oxidative stress is a major aetiological factor driving chronic obstructive pulmonary disease (COPD). Recently recognised as potent antioxidants, reactive persulfide and polysulfide species are biosynthesised by cystathionine β-synthase and cystathionine γ-lyase. The production of reactive persulfide and polysulfide species in the lungs of patients with COPD remain unknown. OBJECTIVES: The aim of this study was to examine the production of reactive persulfides and polysulfides, such as glutathione persulfide (GSSH), cysteine persulfide (CysSSH) and glutathione trisulfide (GSSSH), in lung-resident cells and epithelial lining fluid (ELF) obtained from patients with mild to moderate COPD...
July 19, 2017: Thorax
https://www.readbyqxmd.com/read/28724638/smoking-telomere-length-and-lung-function-decline-a-longitudinal-population-based-study
#4
Pascal Andujar, Dominique Courbon, Emilie Bizard, Elisabeth Marcos, Serge Adnot, Laurent Boyer, Pascal Demoly, Debbie Jarvis, Catherine Neukirch, Isabelle Pin, Gabriel Thabut, Jorge Boczkowski, Bénédicte Leynaert
Telomere shortening is associated with COPD and impaired lung function in cross-sectional studies, but there is no longitudinal study. We used data from 448 participants recruited as part of the French follow-up of the European Community Respiratory Health Survey. We found no relationship between telomere length at baseline and FEV1 decline after 11 years of follow-up. However, heavy smoking was associated with an accelerated FEV1 decline in individuals with short telomeres, but not in subjects with longer telomeres (p for interaction p=0...
July 19, 2017: Thorax
https://www.readbyqxmd.com/read/28724637/predictors-of-mortality-in-middle-east-respiratory-syndrome-mers
#5
Ki-Ho Hong, Jae-Phil Choi, Seon-Hui Hong, Jeewon Lee, Ji-Soo Kwon, Sun-Mi Kim, Se Yoon Park, Ji-Young Rhee, Baek-Nam Kim, Hee Jung Choi, Eui-Cheol Shin, Hyunjoo Pai, Su-Hyung Park, Sung-Han Kim
We evaluated the clinical characteristics, cytokine/chemokine concentrations, viral shedding and antibody kinetics in 30 patients with Middle East respiratory syndrome (MERS), including 6 non-survivors admitted to 3 MERS-designated hospitals. Old age, low albumin, altered mentality and high pneumonia severity index score at admission were risk factors for mortality. In addition, severe signs of inflammation at initial presentation (at hospital days 1-4), such as high inducible protein-10 (p=0.0013), monocyte chemoattractant protein-1 (p=0...
July 19, 2017: Thorax
https://www.readbyqxmd.com/read/28720648/neutrophil-extracellular-traps-induced-by-cigarette-smoke-activate-plasmacytoid-dendritic-cells
#6
Shi-Lin Qiu, Hui Zhang, Qi-Ya Tang, Jing Bai, Zhi-Yi He, Jian-Quan Zhang, Mei-Hua Li, Jing-Min Deng, Guang-Nan Liu, Xiao-Ning Zhong
BACKGROUND: Neutrophil extracellular traps (NETs) represent a distinct strategy by which neutrophils trap, confine and eliminate invading microorganisms. Emerging evidence suggests that NETs exert a deleterious effect to the host in the absence of microbial stimuli. However, the role of NETs in smoking-related lung diseases remains to be elucidated. OBJECTIVES: To evaluate the formation of NETs in the context of chronic inflammation induced by cigarette smoking and explore its potential role in an experimental mouse model of emphysema...
July 18, 2017: Thorax
https://www.readbyqxmd.com/read/28717034/divide-and-conquer-identifying-acute-respiratory-distress-syndrome-subphenotypes
#7
EDITORIAL
Manu Shankar-Hari, Daniel F McAuley
No abstract text is available yet for this article.
July 17, 2017: Thorax
https://www.readbyqxmd.com/read/28717033/vocal-fold-paralysis-on-positron-emission-tomography-ct
#8
Chelsea Ma, Zachary Ak Frosch, Beth Overmoyer, Avraham Z Cooper
No abstract text is available yet for this article.
July 17, 2017: Thorax
https://www.readbyqxmd.com/read/28710339/impact-of-low-dose-ct-screening-on-smoking-cessation-among-high-risk-participants-in-the-uk-lung-cancer-screening-trial
#9
Kate Brain, Ben Carter, Kate J Lifford, Olivia Burke, Anand Devaraj, David R Baldwin, Stephen Duffy, John K Field
BACKGROUND: Smoking cessation was examined among a subset of current smokers who were high-risk participants in the UK Lung Cancer Screening (UKLS) pilot trial of low-dose CT screening. METHODS: High-risk individuals aged 50-75 years who completed baseline questionnaires were randomised to CT screening (intervention) or usual care (no screening control). Smoking habit was determined at baseline using self-report. Smokers were asked whether they had quit smoking since joining UKLS at short-term follow-up (2 weeks after baseline scan results or control assignment) and longer-term follow-up (up to 2 years after recruitment)...
July 14, 2017: Thorax
https://www.readbyqxmd.com/read/28710338/unique-radiological-features-of-two-cases-of-primary-pulmonary-diffuse-large-b-cell-lymphoma
#10
Yuu Saitoh, Ayae Ohnishi-Amemiya, Michiyo Asano, Yuko Tanaka, Seiichiro Yoshizawa, Hiroaki Fujimoto, Yoshikazu Itoh, Naoya Nakamura, Kazuma Ohyashiki
No abstract text is available yet for this article.
July 14, 2017: Thorax
https://www.readbyqxmd.com/read/28689173/current-understanding-and-management-of-pulmonary-langerhans-cell-histiocytosis
#11
Robert Vassallo, Sergio Harari, Abdellatif Tazi
Pulmonary Langerhans cell histiocytosis (PLCH) is a diffuse lung disease that usually affects young adult smokers. PLCH affects different lung compartments; bronchiolar, interstitial and pulmonary vascular dysfunction may coexist to varying extents, resulting in diverse phenotypes. Analyses of PLCH tissues have identified activating mutations of specific mitogen-activated protein kinases (BRAF(V600E) and others). The current consensus is that PLCH represents a myeloid neoplasm with inflammatory properties: the myeloid tumour cells exhibit surface CD1a expression and up to 50% of the cells harbour activating BRAF or other MAPK mutations...
July 8, 2017: Thorax
https://www.readbyqxmd.com/read/28689172/raw-milk-consumption-and-other-early-life-farm-exposures-and-adult-pulmonary-function-in-the-agricultural-lung-health-study
#12
Annah B Wyss, John S House, Jane A Hoppin, Marie Richards, John L Hankinson, Stuart Long, Paul K Henneberger, Laura E Beane Freeman, Dale P Sandler, Elizabeth Long O'Connell, Christie Barker Cummings, David M Umbach, Stephanie J London
Literature suggests that early exposure to the farming environment protects against atopy and asthma; few studies have examined pulmonary function. We evaluated associations between early-life farming exposures and pulmonary function in 3061 adults (mean age=63) from a US farming population using linear regression. Childhood raw milk consumption was associated with higher FEV1 (β=49.5 mL, 95% CI 2.8 to 96.1 mL, p=0.04) and FVC (β=66.2 mL, 95% CI 13.2 to 119.1 mL, p=0.01). We did not find appreciable associations with other early-life farming exposures...
July 8, 2017: Thorax
https://www.readbyqxmd.com/read/28687678/occupational-exposure-to-pesticides-are-associated-with-fixed-airflow-obstruction-in-middle-age
#13
Sheikh M Alif, Shyamali C Dharmage, Geza Benke, Martine Dennekamp, John A Burgess, Jennifer L Perret, Caroline J Lodge, Stephen Morrison, David Peter Johns, Graham G Giles, Lyle C Gurrin, Paul S Thomas, John Llewelyn Hopper, Richard Wood-Baker, Bruce R Thompson, Iain H Feather, Roel Vermeulen, Hans Kromhout, E Haydn Walters, Michael J Abramson, Melanie Claire Matheson
RATIONALE: Population-based studies have found evidence of a relationship between occupational exposures and Chronic Obstructive Pulmonary Disease (COPD), but these studies are limited by the use of prebronchodilator spirometry. Establishing this link using postbronchodilator is critical, because occupational exposures are a modifiable risk factor for COPD. OBJECTIVES: To investigate the associations between occupational exposures and fixed airflow obstruction using postbronchodilator spirometry...
July 7, 2017: Thorax
https://www.readbyqxmd.com/read/28679742/radiation-exposure-during-lung-cancer-diagnostic-work-up-how-important-in-the-wider-picture
#14
EDITORIAL
Nick Watson
No abstract text is available yet for this article.
July 5, 2017: Thorax
https://www.readbyqxmd.com/read/28667231/educational-video-to-improve-cpap-use-in-patients-with-obstructive-sleep-apnoea-at-risk-for-poor-adherence-a-randomised-controlled-trial
#15
Amy S Guralnick, Jay S Balachandran, Shane Szutenbach, Kevin Adley, Leila Emami, Meelad Mohammadi, Jeanne M Farnan, Vineet M Arora, Babak Mokhlesi
BACKGROUND: Suboptimal adherence to CPAP limits its clinical effectiveness in patients with obstructive sleep apnoea (OSA). Although rigorous behavioural interventions improve CPAP adherence, their labour-intensive nature has limited widespread implementation. Moreover, these interventions have not been tested in patients at risk of poor CPAP adherence. Our objective was to determine whether an educational video will improve CPAP adherence in patients at risk of poor CPAP adherence. METHODS: Patients referred by clinicians without sleep medicine expertise to an urban sleep laboratory that serves predominantly minority population were randomised to view an educational video about OSA and CPAP therapy before the polysomnogram, or to usual care...
June 30, 2017: Thorax
https://www.readbyqxmd.com/read/28663340/safety-of-pulmonary-function-testing-data-from-20-years
#16
Cara Roberts, Simon Ward, Emil Walsted, James H Hull
BACKGROUND: Pulmonary function testing (PFT) is a key investigation in the evaluation of individuals with respiratory symptoms; however, the safety of routine and specialised PFT testing has not been reported in a large data set. Using patient safety incident (PSI) records, we aimed to assess risk of PFT and to characterise these events and any associated risk factors. METHODS: In this single-centre audit, demographics and PSI data were collected and categorised for PFT performed between 1996 and 2016 and subdivided into cardiopulmonary or non-cardiopulmonary events...
June 29, 2017: Thorax
https://www.readbyqxmd.com/read/28637835/do-copd-subtypes-really-exist-copd-heterogeneity-and-clustering-in-10-independent-cohorts
#17
Peter J Castaldi, Marta Benet, Hans Petersen, Nicholas Rafaels, James Finigan, Matteo Paoletti, H Marike Boezen, Judith M Vonk, Russell Bowler, Massimo Pistolesi, Milo A Puhan, Josep Anto, Els Wauters, Diether Lambrechts, Wim Janssens, Francesca Bigazzi, Gianna Camiciottoli, Michael H Cho, Craig P Hersh, Kathleen Barnes, Stephen Rennard, Meher Preethi Boorgula, Jennifer Dy, Nadia N Hansel, James D Crapo, Yohannes Tesfaigzi, Alvar Agusti, Edwin K Silverman, Judith Garcia-Aymerich
BACKGROUND: COPD is a heterogeneous disease, but there is little consensus on specific definitions for COPD subtypes. Unsupervised clustering offers the promise of 'unbiased' data-driven assessment of COPD heterogeneity. Multiple groups have identified COPD subtypes using cluster analysis, but there has been no systematic assessment of the reproducibility of these subtypes. OBJECTIVE: We performed clustering analyses across 10 cohorts in North America and Europe in order to assess the reproducibility of (1) correlation patterns of key COPD-related clinical characteristics and (2) clustering results...
June 21, 2017: Thorax
https://www.readbyqxmd.com/read/28634220/tidal-changes-on-ct-and-progression-of-ards
#18
Maurizio Cereda, Yi Xin, Hooman Hamedani, Giacomo Bellani, Stephen Kadlecek, Justin Clapp, Luca Guerra, Natalie Meeder, Jennia Rajaei, Nicholas J Tustison, James C Gee, Brian P Kavanagh, Rahim R Rizi
BACKGROUND: Uncertain prediction of outcome in acute respiratory distress syndrome (ARDS) impedes individual patient management and clinical trial design. OBJECTIVES: To develop a radiological metric of injurious inflation derived from matched inspiratory and expiratory CT scans, calibrate it in a model of experimental lung injury, and test it in patients with ARDS. METHODS: 73 anaesthetised rats (acid aspiration model) were ventilated (protective or non-protective) for up to 4 hours to generate a spectrum of lung injury...
June 20, 2017: Thorax
https://www.readbyqxmd.com/read/28495787/screening-contacts-of-patients-with-extrapulmonary-tb-for-latent-tb-infection
#19
LETTER
Anna Humphreys, Aula Abbara, Sion Williams, Laurence John, Tumena Corrah, Alastair McGregor, Robert N Davidson
2016 TB National Institute for Health and Care Excellence (NICE) guidelines imply that contacts of extrapulmonary TB do not require screening for latent TB infection. At our high TB prevalence site, we identified 189 active cases of TB for whom there were 698 close contacts. 29.1% of the contacts of pulmonary TB and 10.7% of the contacts of extrapulmonary TB had active or latent TB infection. This supports screening contacts of extrapulmonary TB at our site and presents a way to access high-risk individuals...
May 11, 2017: Thorax
https://www.readbyqxmd.com/read/28476882/gait-speed-and-pedestrian-crossings-in-copd
#20
LETTER
Claire M Nolan, Samantha S C Kon, Suhani Patel, Sarah E Jones, Ruth E Barker, Michael I Polkey, Matthew Maddocks, William D-C Man
The assumed minimum walking speed at pedestrian crossings is 1.2 m/s. In this prospective cohort study, usual walking speed was measured over a 4 m course in 926 community-dwelling, ambulatory patients with stable COPD. Mean (SD) walking speed was 0.91 (0.24) m/s with only 10.7% walking at a speed equal or greater than 1.2 m/s. In order for 95% of this cohort to safely negotiate a pedestrian cross, traffic lights would have to assume a minimum walking speed of 0.50 m/s (2.4 times longer than current times)...
May 5, 2017: Thorax
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