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Lung fibrosis

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https://www.readbyqxmd.com/read/29150411/an-epithelial-biomarker-signature-for-idiopathic-pulmonary-fibrosis-an-analysis-from-the-multicentre-profile-cohort-study
#1
Toby M Maher, Eunice Oballa, Juliet K Simpson, Joanne Porte, Anthony Habgood, William A Fahy, Aiden Flynn, Philip L Molyneaux, Rebecca Braybrooke, Hrushikesh Divyateja, Helen Parfrey, Doris Rassl, Anne-Marie Russell, Gauri Saini, Elisabetta A Renzoni, Anne-Marie Duggan, Richard Hubbard, Athol U Wells, Pauline T Lukey, Richard P Marshall, R Gisli Jenkins
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal disorder with a variable disease trajectory. The aim of this study was to assess potential biomarkers to predict outcomes for people with IPF. METHOD: PROFILE is a large prospective longitudinal cohort of treatment-naive patients with IPF. We adopted a two-stage discovery and validation design using patients from the PROFILE cohort. For the discovery analysis, we examined 106 patients and 50 age and sex matched healthy controls from Nottingham University Hospitals NHS Trust and the Royal Brompton Hospital...
November 14, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29149883/serum-concentrations-of-krebs-von-den-lungen-6-surfactant-protein-d-and-matrix-metalloproteinase-2-as-diagnostic-biomarkers-in-patients-with-asbestosis-and-silicosis-a-case-control-study
#2
Changjiang Xue, Na Wu, Xue Li, Meihua Qiu, Xuqin Du, Qiao Ye
BACKGROUND: Asbestosis and silicosis are progressive pneumoconioses characterized by interstitial fibrosis following exposure to asbestos or silica dust. We evaluated the potential diagnostic biomarkers for these diseases. METHODS: The serum concentrations of Krebs von den Lungen-6 (KL-6), surfactant protein D (SP-D), and matrix metalloproteinase-2 (MMP-2), MMP-7, and MMP-9 were measured in 43 patients with asbestosis, 45 patients with silicosis, 40 dust-exposed workers (DEWs) without pneumoconiosis, and 45 healthy controls (HCs)...
November 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29149880/analytical-performance-of-envisia-a-genomic-classifier-for-usual-interstitial-pneumonia
#3
Yoonha Choi, Jiayi Lu, Zhanzhi Hu, Daniel G Pankratz, Huimin Jiang, Manqiu Cao, Cristina Marchisano, Jennifer Huiras, Grazyna Fedorowicz, Mei G Wong, Jessica R Anderson, Edward Y Tom, Joshua Babiarz, Urooj Imtiaz, Neil M Barth, P Sean Walsh, Giulia C Kennedy, Jing Huang
BACKGROUND: Clinical guidelines specify that diagnosis of interstitial pulmonary fibrosis (IPF) requires identification of usual interstitial pneumonia (UIP) pattern. While UIP can be identified by high resolution CT of the chest, the results are often inconclusive, making surgical lung biopsy necessary to reach a definitive diagnosis (Raghu et al., Am J Respir Crit Care Med 183(6):788-824, 2011). The Envisia genomic classifier differentiates UIP from non-UIP pathology in transbronchial biopsies (TBB), potentially allowing patients to avoid an invasive procedure (Brown et al...
November 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29148977/the-role-of-micrornas-in-chronic-respiratory-disease-recent-insights
#4
Lindsay R Stolzenburg, Ann Harris
Chronic respiratory diseases encompass a group of diverse conditions affecting the airways, which all impair lung function over time. They include cystic fibrosis, idiopathic pulmonary fibrosis, chronic obstructive pulmonary disease, and asthma, which together affect hundreds of millions of people worldwide. MicroRNAs (miRNAs), a class of small non-coding RNAs involved in post-transcriptional gene repression, are now recognized as major regulators in the development and progression of chronic lung disease. Alterations in miRNA abundance occur in lung tissue, inflammatory cells, and freely circulating in blood and are thought to function both as drivers and modifiers of disease...
November 27, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29147917/recommendations-for-perioperative-management-of-lung-cancer-patients-with-comorbidities
#5
REVIEW
Hiroyoshi Tsubochi, Tomoki Shibano, Shunsuke Endo
OBJECTIVES: To improve surgical outcomes, clinicians must provide optimal perioperative care for comorbidities identified as significant factors in risk models for patients undergoing lung cancer surgery. METHODS: We reviewed trends in perioperative care for idiopathic pulmonary fibrosis, cardiovascular diseases, and end-stage renal diseases in patients undergoing lung cancer surgery, as large clinical databases indicate that these comorbidities are significant risk factors for lung cancer surgery...
November 16, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29147013/integrin-alpha-11-in-the-regulation-of-the-myofibroblast-phenotype-implications-for-fibrotic-diseases
#6
Ruchi Bansal, Shigeki Nakagawa, Saleh Yazdani, Joop van Baarlen, Anu Venkatesh, Anna P Koh, Won-Min Song, Nicolas Goossens, Hideo Watanabe, Mary B Beasley, Charles A Powell, Gert Storm, Naftali Kaminski, Harry van Goor, Scott L Friedman, Yujin Hoshida, Jai Prakash
Tissue fibrosis, characterized by excessive accumulation of aberrant extracellular matrix (ECM) produced by myofibroblasts, is a growing cause of mortality worldwide. Understanding the factors that induce myofibroblastic differentiation is paramount to prevent or reverse the fibrogenic process. Integrin-mediated interaction between the ECM and cytoskeleton promotes myofibroblast differentiation. In the present study, we explored the significance of integrin alpha 11 (ITGA11), the integrin alpha subunit that selectively binds to type I collagen during tissue fibrosis in the liver, lungs and kidneys...
November 17, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29146889/exhaled-markers-of-anti-oxidant-activity-and-oxidative-stress-in-stable-cystic-fibrosis-patients-with-moderate-lung-disease
#7
Lucia Spicuzza, Giuseppe Fabio Parisi, Lucia Tardino, Nicola Ciancio, Raffaella Nenna, Fabio Midulla, Salvatore Leonardi
The sustained imbalance between oxidant and antioxidant species contributes to lung damage in patients with cystic fibrosis (CF). Glutathione (GSH) is an important component of the antioxidant defense in the airways epithelial lining fluid and its transportation out of the cells may be altered in CF. The aim of this study was to assess the oxidants/anti-oxidants balance in the airways of patients with CF. We measured the concentrations of GSH, the total antioxidant capacity and the concentration of 8-iso-prostaglandin F2α (8-isoprostane), a marker of oxidative stress, in the exhaled breath condensate of 17 non-smoking patients with CF, in stable phase, and in 17 age-matched healthy subjects...
November 17, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29146840/draft-genome-sequence-of-the-mucoid-pseudomonas-aeruginosa-clinical-isolate-pa34
#8
Lucas B Harrison, Nancy D Hanson
Pseudomonas aeruginosa is a serious threat to patients suffering from cystic fibrosis. These organisms are exposed to a unique set of selective pressures within the lung. Here, we report the draft genome sequence of a mucoid P. aeruginosa clinical isolate obtained from a cystic fibrosis patient colonized with P. aeruginosa.
November 16, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29146575/lumacaftor-vx-809-restores-the-ability-of-cf-macrophages-to-phagocytose-and-kill-pseudomonas-aeruginosa
#9
Roxanna Barnaby, Katja Koeppen, Amanda Nymon, Thomas H Hampton, Brent Berwin, Alix Ashare, Bruce Stanton
Cystic Fibrosis (CF), the most common lethal genetic disease in Caucasians, is characterized by chronic bacterial lung infection and excessive inflammation, which leads to progressive loss of lung function, and premature death. Although ivacaftor (VX-770) and the combination of ivacaftor and lumacaftor (VX-809) improve lung function in CF patients with the Gly551Asp and del508Phe mutation, respectively, the effects of these drugs on the function of human CF macrophages are unknown. Thus, studies were conducted to examine the effects of lumacaftor alone and in combination with ivacaftor (i...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29146100/emerging-role-of-extracellular-vesicles-as-a-senescence-associated-secretory-phenotype-insights-into-the-pathophysiology-of-lung-diseases
#10
REVIEW
Tsukasa Kadota, Yu Fujita, Yusuke Yoshioka, Jun Araya, Kazuyoshi Kuwano, Takahiro Ochiya
Aging is a major risk factor for the development of chronic lung diseases such as chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and lung cancer. A main aspect of aging is the impaired function of maintaining homeostasis in the organs and body, which is associated with cellular senescence. Cellular senescence is recognized as the state of irreversible cell cycle arrest in response to a variety of cellular stresses. Senescent cells are not simply cell cycle-arrested cells; they also affect bystander cells through the secretion of bioactive molecules, termed the senescence-associated secretory phenotype (SASP)...
November 13, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29145499/clinical-tool-for-disease-phenotyping-in-granulomatous-lung-disease
#11
Lori J Silveira, Matthew Strand, Michael V Van Dyke, Margaret M Mroz, Anna V Faino, Dana M Dabelea, Lisa A Maier, Tasha E Fingerlin
BACKGROUND: Exposure to beryllium may lead to granuloma formation and fibrosis in those who develop chronic beryllium disease (CBD). Although disease presentation varies from mild to severe, little is known about CBD phenotypes. This study characterized CBD disease phenotypes using longitudinal measures of lung function. METHODS: Using a case-only study of 207 CBD subjects, subject-specific trajectories over time were estimated from longitudinal pulmonary function and exercise-tolerance tests...
2017: PloS One
https://www.readbyqxmd.com/read/29145306/dynamic-noninvasive-markers-predict-hepatocellular-carcinoma-in-chronic-hepatitis-c-patients-without-sustained-virological-response-after-interferon-based-therapy-prioritize-who-needs-urgent-direct-acting-antiviral-agents
#12
Chao-Min Huang, Tsung-Hui Hu, Kuo-Chin Chang, Po-Lin Tseng, Sheng-Nan Lu, Chien-Hung Chen, Jing-Houng Wang, Chuan-Mo Lee, Ming-Chao Tsai, Ming-Tsung Lin, Yi-Hao Yen, Chao-Hung Hung, Chung-Lung Cho, Cheng-Kun Wu
Some patients with hepatitis C virus (HCV) infections who fail to achieve sustained virological responses (SVRs) after interferon (IFN) therapy do not develop hepatocellular carcinoma (HCC). Risk stratification of these patients may help identify those who would benefit most from treatment with direct-acting antivirals (DAAs).A total of 552 HCV-infected patients with non-SVR status were enrolled. Laboratory data before and after IFN treatment were analyzed to determine the relationship of changes in serum markers with development of HCC during the 7-year study period...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144435/dysregulated-collagen-homeostasis-by-matrix-stiffening-and-tgf-%C3%AE-1-in-fibroblasts-from-idiopathic-pulmonary-fibrosis-patients-role-of-fak-akt
#13
Alícia Giménez, Paula Duch, Marta Puig, Marta Gabasa, Antoni Xaubet, Jordi Alcaraz
Idiopathic pulmonary fibrosis (IPF) is an aggressive disease in which normal lung parenchyma is replaced by a stiff dysfunctional scar rich in activated fibroblasts and collagen-I. We examined how the mechanochemical pro-fibrotic microenvironment provided by matrix stiffening and TGF-β1 cooperates in the transcriptional control of collagen homeostasis in normal and fibrotic conditions. For this purpose we cultured fibroblasts from IPF patients or control donors on hydrogels with tunable elasticity, including 3D collagen-I gels and 2D polyacrylamide (PAA) gels...
November 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29143505/-inhaled-antibiotics-for-the-management-of-non-cystic-fibrosis-bronchiectasis
#14
Gregory Berra, Émilie Chappuis-Gisin, Paola M Soccal, Jérôme Plojoux
Bronchiectasis is irreversible bronchial dilatation associated with chronic respiratory symptoms. Management is aimed at reducing symptoms and slowing the progression of the disease by interrupting the vicious circle: bronchial infection, inflammation, altered mucociliary clearance, lung destruction. Unlike the literature on inhaled antibiotics in cystic fibrosis, literature data are limited and of low quality for bronchiectasis of other causes. However, new recommendations from the European Respiratory Society propose the conditional use of inhaled antibiotics to prevent repeated infectious exacerbations and to eradicate Pseudomonas aeruginosa colonization...
November 15, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29143200/structural-and-perfusion-magnetic-resonance-imaging-of-the-lung-in-cystic-fibrosis
#15
Christina Amaxopoulou, Ralph Gnannt, Kai Higashigaito, Andreas Jung, Christian J Kellenberger
BACKGROUND: Because of its absence of ionising radiation and possibility for obtaining functional information, MRI is promising for assessing lung disease in children who require repetitive imaging for long-term follow-up. OBJECTIVE: To describe MRI findings in children with cystic fibrosis and evaluate semi-quantitative dynamic contrast-enhanced lung perfusion. MATERIALS AND METHODS: We retrospectively compared lung MRI in 25 children and young adults with cystic fibrosis (median age 3...
November 15, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29142074/stat3-controls-col1a2-enhancer-activation-cooperatively-with-junb-regulates-type-i-collagen-synthesis-post-transcriptionally-and-is-essential-for-lung-myofibroblast-differentiation
#16
Ioannis Papaioannou, Shiwen Xu, Christopher P Denton, David J Abraham, Markella Ponticos
Fibroblast differentiation is key cellular process that underlies the process of fibrosis, a deadly complication of fibrotic diseases like Scleroderma (SSc). This transition coincides with the overproduction of Collagen type I (COL1) and other extracellular matrix proteins. High level expression of the collagen type 1α2 subunit (COL1A2), requires the engagement of a far upstream enhancer, whose activation is strongly dependent on the AP1 factor JunB. We now report that STAT3 also binds the COL1A2 enhancer and is essential for RNA polymerase recruitment, without affecting JunB binding...
November 15, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/29142028/high-baseline-serum-clara-cell-16-kda-predicts-subsequent-lung-disease-worsening-in-systemic-sclerosis
#17
Sébastien Rivière, Thong Hua-Huy, Kiet Phong Tiev, Jean Cabane, Anh Tuan Dinh-Xuan
OBJECTIVE: Clara cell secretory protein (CC16) is a sensitive marker of bronchial epithelial cell damage. The CC16 serum level is elevated in patients with pulmonary fibrosis, but its predictive value on lung disease progression has not yet been studied. We aimed to assess the value of serum CC16 concentration in predicting lung disease deterioration in patients with systemic sclerosis (SSc). METHODS: We prospectively analyzed and followed 106 patients with SSc during a 4-year period for the risk of developing combined deleterious event, defined as a 10% decrease in total lung capacity or forced vital capacity from baseline, or death, according to serum CC16 at inclusion...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29140739/cftr-genotype-and-maximal-exercise-capacity-in-cystic-fibrosis-a-cross-sectional-study
#18
Thomas Radtke, Helge Hebestreit, Sabina Gallati, Jane E Schneiderman, Julia Braun, Daniel Stevens, Erik Hj Hulzebos, Tim Takken, Steven R Boas, Don S Urquhart, Larry C Lands, Sergio Tejero, Aleksandar Sovtic, Tiffany Dwyer, Milos Petrovic, Ryan A Harris, Chantal Karila, Daniela Savi, Jakob Usemann, Meir Mei-Zahav, Elpis Hatziagorou, Felix Ratjen, Susi Kriemler
RATIONALE: Cystic fibrosis transmembrane conductance regulator (CFTR) is expressed in human skeletal muscle cells. Variations of CFTR dysfunction among patients with CF may present an important determinant of aerobic exercise capacity in CF. Previous studies on the relationship between CFTR genotype and aerobic exercise capacity are scarce and contradictory. OBJECTIVES: This study was designed to explore factors influencing aerobic exercise capacity, expressed as peak oxygen consumption (VO2peak) with a specific focus on CFTR genotype in children and adults with CF...
November 15, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29140132/mediation-of-the-single-walled-carbon-nanotubes-induced-pulmonary-fibrogenic-response-by-osteopontin-and-tgf-%C3%AE-1
#19
Timur O Khaliullin, Elena R Kisin, Ashley R Murray, Naveena Yanamala, Michael R Shurin, Dmitriy W Gutkin, Liliya M Fatkhutdinova, Valerian E Kagan, Anna A Shvedova
PURPOSE OF THE STUDY: A number of in vivo studies have shown that pulmonary exposure to carbon nanotubes (CNTs) may lead to an acute local inflammatory response, pulmonary fibrosis, and granulomatous lesions. Among the factors that play direct roles in initiation and progression of fibrotic processes are epithelial-mesenchymal transition and myofibroblasts recruitment/differentiation, both mediated by transforming growth factor-β1 (TGF-β1). Yet, other contributors to TGF-β1 associated signaling, such as osteopontin (OPN) has not been fully investigated...
October 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29140119/ct-features-of-the-usual-interstitial-pneumonia-pattern-differentiating-connective-tissue-disease-associated-interstitial-lung-disease-from-idiopathic-pulmonary-fibrosis
#20
Jonathan H Chung, Christian W Cox, Steven M Montner, Ayodeji Adegunsoye, Justin M Oldham, Aliya N Husain, Rekha Vij, Imre Noth, David A Lynch, Mary E Strek
OBJECTIVE: A substantial proportion of cases of usual interstitial pneumonia (UIP) are due to connective tissue disease (CTD)-associated interstitial lung disease (ILD). The purpose of this study was to determine whether specific CT findings can help differentiate a UIP pattern of CTD-ILD from a UIP pattern of idiopathic pulmonary fibrosis (IPF) and whether these signs are associated with survival. MATERIALS AND METHODS: Adults visiting an ILD clinic from 2006 to 2015 enrolled in a research registry with a multidisciplinary diagnosis of CTD-ILD or IPF and a UIP pattern at high-resolution CT were included in the study...
November 15, 2017: AJR. American Journal of Roentgenology
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