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https://www.readbyqxmd.com/read/27914107/non-paraneoplastic-autoimmune-subepidermal-bullous-disease-associated-with-fatal-bronchiolitis-obliterans
#1
Mari Orime, Katsuhiro Tomiyama, Hideki Hashidate, Satoru Yoshida, Satoshi Hokari, Akiko Tsuda, Hisashi Yokoyama, Jun-Ichi Narita, Youhei Uchida, Takuro Kanekura, Riichiro Abe, Norito Ishii, Takashi Hashimoto, Kazuhiro Kawai
Bronchiolitis obliterans is a small-airway obstructive lung disease for which immunologically mediated pathogenesis is supposed. Frequent association of bronchiolitis obliterans with paraneoplastic pemphigus is well known, but its association with other autoimmune bullous diseases has not been reported except for a case of anti-laminin-332-type mucous membrane pemphigoid in a patient with chronic graft-versus-host disease. We report a case of non-paraneoplastic autoimmune subepidermal bullous disease associated with fatal bronchiolitis obliterans in a patient without transplantation...
December 3, 2016: Journal of Dermatology
https://www.readbyqxmd.com/read/27913421/role-of-il-17a-in-murine-models-of-copd-airway-disease
#2
Haruhiko Yanagisawa, Mitsuo Hashimoto, Shunsuke Minagawa, Naoki Takasaka, Royce Ma, Catherine Moermans, Saburo Ito, Jun Araya, Alison Budelsky, Amanda Goodsell, Jody L Baron, Stephen L Nishimura
Small airway fibrosis is a major pathologic feature of chronic obstructive pulmonary disease (COPD) and is refractory to current treatments. Chronic inflammatory cells accumulate around small airways in COPD and are thought to play a major role in small airway fibrosis. Mice deficient in α/β T-cells have recently been shown to be protected from both experimental airway inflammation and fibrosis. In these models, CD4+Th17 cells and secretion of IL-17A are increased. However, a pathogenic role for IL-17 in specifically mediating fibrosis around airways has not been demonstrated...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27913141/acute-lung-injury-and-persistent-small-airway-disease-in-a-rabbit-model-of-chlorine-inhalation
#3
Sadiatu Musah, Connie F Schlueter, David M Humphrey, Karen S Powell, Andrew M Roberts, Gary W Hoyle
Chlorine is a pulmonary toxicant to which humans can be exposed through accidents or intentional releases. Acute effects of chlorine inhalation in humans and animal models have been well characterized, but less is known about persistent effects of acute, high-level chlorine exposures. In particular, animal models that reproduce the long-term effects suggested to occur in humans are lacking. Here, we report the development of a rabbit model in which both acute and persistent effects of chlorine inhalation can be assessed...
November 29, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27911568/nf%C3%AE%C2%BAb-mediates-mesenchymal-transition-remodeling-and-pulmonary-fibrosis-in-response-to-chronic-inflammation-by-viral-rna-patterns
#4
Bing Tian, Igor Patrikeev, Lorenzo Ochoa, Gracie Vargas, KarryAnne K Belanger, Julia Litvinov, Istvan Boldogh, Bill T Ameredes, Massoud Motamedi, Allan R Brasier
Airway remodeling is resultant of a complex multi-cellular response associated with a progressive decline of pulmonary function in patients with chronic airway disease. Here, repeated infections with respiratory viruses are linked with airway remodeling through largely unknown mechanisms. Although acute activation of the Toll like receptor (TLR)3 pathway by extracellular poly(I:C) induces innate signaling through the NFkB transcription factor in human small airway epithelial cells (hSAECs), prolonged (repetitive or tonic) poly(I:C) stimulation produces chronic stress fiber formation, mesenchymal transition and activation of a fibrotic program...
December 2, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27911098/siga-deficiency-in-individual-small-airways-is-associated-with-persistent-inflammation-and-remodeling
#5
Vasiliy V Polosukhin, Bradley W Richmond, Rui-Hong Du, Justin M Cates, Pingsheng Wu, Hui Nian, Pierre P Massion, Lorraine B Ware, Jae Woo Lee, Alexey V Kononov, William E Lawson, Timothy S Blackwell
RATIONALE: Maintenance of a surface immune barrier is important for homeostasis in organs with mucosal surfaces that interface with the external environment; however, the role of the mucosal immune system in chronic lung diseases is incompletely understood. OBJECTIVES: We examined the relationship between secretory immunoglobulin A (SIgA) on the mucosal surface of small airways and parameters of inflammation and airway wall remodeling in chronic obstructive pulmonary disease (COPD)...
December 2, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27910061/inhaled-gene-transfer-for-pulmonary-circulation
#6
Jaume Aguero, Lahouaria Hadri, Nadjib Hammoudi, Lauren Leonardson, Roger J Hajjar, Kiyotake Ishikawa
Chronic pulmonary hypertension (PH) is associated with right ventricular failure and high mortality regardless of the underlying disease. Currently, therapies can improve clinical outcomes in specific subsets of patients, but have little impact on the progression of pulmonary vascular remodeling. Upon new advances in vector development and delivery techniques, gene therapy is a novel strategy in this field with the potential of overcoming the main limitations of approved drug therapies: modulation of novel anti-remodeling targets and selective pulmonary vasculature targeting with minimal systemic effects...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27908307/evolution-of-imaging-findings-laboratory-and-functional-parameters-in-rheumatoid-arthritis-patients-after-one-year-of-treatment-with-anti-tnf-%C3%AE-agents
#7
Efstathios E Detorakis, Eleftherios Magkanas, Ismini Lasithiotaki, Prodromos Sidiropoulos, Dimitrios T Boumpas, Nicholas Gourtsoyiannis, Katerina Antoniou, Maria Raissaki
OBJECTIVES: To investigate the efficacy and safety of anti-TNF-α agent treatment compared to non-biologic DMARDs in rheumatoid arthritis patients. METHODS: 82 consecutive patients, 29 males, 53 females, aged 42-79, diagnosed with RA and suitable for anti-TNF-α treatment composed two study groups: 42 with pre-existing rheumatoid arthritis-related interstitial lung disease (RA-ILD) and 40 without RA-ILD. Respective control groups consisted of 44 patients with pre-existing RA-ILD and 44 patients without RA-ILD, treated with non-biologic DMARDs...
October 27, 2016: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/27906831/bos-is-associated-with-increased-cytotoxic-pro-inflammatory-cd8-t-nkt-like-and-nk-cells-in-the-small-airways
#8
Greg Hodge, Sandra Hodge, Aeneas Yeo, Phan Nguyen, Emily Hopkins, Holmes-Liew Cl, Paul N Reynolds, Mark Holmes
BACKGROUND: Immunosuppression therapy following lung transplantation fails to prevent bronchiolitis obliterans syndrome (BOS) in many patients, primarily a disease of the small airways. We have reported that BOS is associated with a lack of suppression of cytotoxic mediators, and pro-inflammatory cytokines, in peripheral blood T, NKT-like (particularly CD8+) and NK cells. We also showed a loss of glucocorticoid receptor (GCR) in pro-inflammatory lymphocytes following transplant. It is unknown whether these pro-inflammatory lymphocytes target the small and/or large airways in BOS...
December 1, 2016: Transplantation
https://www.readbyqxmd.com/read/27905186/severe-asthma-current-management-targeted-therapies-and-future-directions-a-roundtable-report
#9
REVIEW
Vanessa M McDonald, Steven Maltby, Helen K Reddel, Gregory G King, Peter A B Wark, Lorraine Smith, John W Upham, Alan L James, Guy B Marks, Peter G Gibson
Asthma is a chronic respiratory disease characterized by respiratory symptoms, airway inflammation, airway obstruction and airway hyper-responsiveness. Asthma is common and directly affects 10% of Australians, 1-5% of adults in Asia and 300 million people worldwide. It is a heterogeneous disorder with many clinical, molecular, biological and pathophysiological phenotypes. Current management strategies successfully treat the majority of patients with asthma who have access to them. However, there is a subset of an estimated 5-10% of patients with asthma who have severe disease and are disproportionately impacted by symptoms, exacerbations and overall illness burden...
November 30, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27896060/diffuse-bronchiectasis-as-the-primary-manifestation-of-endobronchial-sarcoidosis
#10
Paul D Hiles, Kenneth R Kemp, Jean M Coviello
Sarcoidosis is an idiopathic disease that most commonly involves the lungs and is characterized by granulomatous inflammation. Bronchiectasis is one pulmonary manifestation of sarcoidosis, although it is almost always observed as traction bronchiectasis in the setting of fibrotic lung disease. A 50-year-old woman was evaluated for chronic cough and bronchiectasis with a small amount of peripheral upper lobe honeycombing and no significant pulmonary fibrosis or lymphadenopathy. After an extensive laboratory and imaging evaluation did not identify a cause of her bronchiectasis, bronchoscopy was performed to assess for primary ciliary dyskinesia and revealed a diffuse cobblestone appearance of the airway mucosa...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27894999/matched-comparative-modeling-of-normal-and-diseased-human-airway-responses-using-a-microengineered-breathing-lung-chip
#11
Kambez H Benam, Richard Novak, Janna Nawroth, Mariko Hirano-Kobayashi, Thomas C Ferrante, Youngjae Choe, Rachelle Prantil-Baun, James C Weaver, Anthony Bahinski, Kevin K Parker, Donald E Ingber
Smoking represents a major risk factor for chronic obstructive pulmonary disease (COPD), but it is difficult to characterize smoke-induced injury responses under physiological breathing conditions in humans due to patient-to-patient variability. Here, we show that a small airway-on-a-chip device lined by living human bronchiolar epithelium from normal or COPD patients can be connected to an instrument that "breathes" whole cigarette smoke in and out of the chips to study smoke-induced pathophysiology in vitro...
November 23, 2016: Cell Systems
https://www.readbyqxmd.com/read/27890994/quantitative-computed-tomography-imaging-in-chronic-obstructive-pulmonary-disease
#12
REVIEW
Lalita Fernandes, Yasmin Fernandes, Anthony Menezes Mesquita
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease having small airway inflammation, emphysema, and pulmonary hypertension. It is now clear that spirometry alone cannot differentiate each component. Quantitative computed tomography (QCT) is increasingly used to quantify the amount of emphysema and small airway involvement in COPD. Inspiratory CT guides in assessing emphysema while expiratory CT identifies areas of air trapping which is a surrogate of small airway inflammation. By constructing a three-dimensional model of airways, we can also measure the airway wall thickness of segmental and subsegmental airways...
November 2016: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/27886849/prevalence-and-burden-of-comorbidities-in-chronic-obstructive-pulmonary-disease
#13
REVIEW
Alexandru Corlateanu, Serghei Covantev, Alexander G Mathioudakis, Victor Botnaru, Nikolaos Siafakas
The classical definition of Chronic Obstructive Pulmonary Disease (COPD) as a lung condition characterized by irreversible airway obstruction is outdated. The systemic involvement in patients with COPD, as well as the interactions between COPD and its comorbidities, justify the description of chronic systemic inflammatory syndrome. The pathogenesis of COPD is closely linked with aging, as well as with cardiovascular, endocrine, musculoskeletal, renal, and gastrointestinal pathologies, decreasing the quality of life of patients with COPD and, furthermore, complicating the management of the disease...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27884601/evaluating-small-airways-disease-in-asthma-the-utility-of-quantitative-computed-tomography-qct
#14
EDITORIAL
Donald P Tashkin, Hyun J Kim, Michelle Zeidler, Eric Kleerup, Jonathan Goldin
No abstract text is available yet for this article.
November 21, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27875656/involvement-of-jnk-in-tnf%C3%AE-driven-remodelling
#15
Irene Mj Eurlings, Niki L Reynaert, Cheryl van de Wetering, Scott W Aesif, Evi M Mercken, Rafael de Cabo, Jos L van der Velden, Yvonne M Janssen-Heininger, Emiel F M Wouters, Mieke A Dentener
Lung tissue remodeling in chronic obstructive pulmonary disease (COPD) is characterized by airway wall thickening and/or emphysema. Although the bronchial and alveolar compartments are functionally independent entities, we recently showed comparable alterations in matrix composition comprised of decreased elastin content and increased collagen and hyaluronan contents of alveolar and small airway walls. Out of several animal models tested SPC-TNFα mice showed remodelling in alveolar and airway walls similar to what is observed in COPD patients...
November 22, 2016: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/27866549/-characteristics-of-lung-function-in-patients-with-asbestosis-of-different-stages
#16
X L Yang, X L Zhu, A Li, X Q Du, Y G Song, Q Ye
Objective: To investigate the characteristics of lung function in the patients with asbestosis of different stages, and analyze the correlations between the pulmonary function values and imaging score of chest X-ray. Methods: A cohort of newly diagnosed 249 asbestosis patients over a period of eight years in a single center were evaluated. Clinical data were collected from clinical charts. Radiographs were reviewed by the experts blinded to clinical data. The asbestosis patients were classified into I to III stages by chest X-ray according to the guideline...
September 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/27861524/factors-associated-with-worse-lung-function-in-cystic-fibrosis-patients-with-persistent-staphylococcus-aureus
#17
Sibylle Junge, Dennis Görlich, Martijn den Reijer, Bärbel Wiedemann, Burkhard Tümmler, Helmut Ellemunter, Angelika Dübbers, Peter Küster, Manfred Ballmann, Cordula Koerner-Rettberg, Jörg Große-Onnebrink, Eberhardt Heuer, Wolfgang Sextro, Jochen G Mainz, Jutta Hammermann, Joachim Riethmüller, Ute Graepler-Mainka, Doris Staab, Bettina Wollschläger, Rüdiger Szczepanski, Antje Schuster, Friedrich-Karl Tegtmeyer, Sivagurunathan Sutharsan, Alexandra Wald, Jerzy-Roch Nofer, Willem van Wamel, Karsten Becker, Georg Peters, Barbara C Kahl
BACKGROUND: Staphylococcus aureus is an important pathogen in cystic fibrosis (CF). However, it is not clear which factors are associated with worse lung function in patients with persistent S. aureus airway cultures. Our main hypothesis was that patients with high S. aureus density in their respiratory specimens would more likely experience worsening of their lung disease than patients with low bacterial loads. METHODS: Therefore, we conducted an observational prospective longitudinal multi-center study and assessed the association between lung function and S...
2016: PloS One
https://www.readbyqxmd.com/read/27858495/asthma-associated-with-the-use-of-cocaine-heroin-and-marijuana-a-review-of-the-evidence
#18
Timothy H Self, Samarth Shah, Katherine L March, Christopher W Sands
OBJECTIVE: Review the evidence regarding asthma associated with use of cocaine, heroin, and marijuana. DATA SOURCES: A search of the English literature via PubMed/Medline and EMBASE using the search terms asthma AND cocaine, heroin, and marijuana. When pertinent articles were found, salient references in those articles were assessed. STUDY SELECTION: Due to the relatively small number of studies, we included all studies and cases. RESULTS: For several decades, case reports, retrospective studies, and laboratory investigations have demonstrated that inhalation of cocaine or heroin is associated with increased asthma symptoms and reduced pulmonary function...
November 18, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27852959/percutaneous-dilatational-tracheostomy-in-ankylosing-spondylitis-bechterew-disease-is-feasible-and-not-associated-with-higher-complication-rates
#19
Uwe Hamsen, Oliver Kamp, Chris Kaczmarek, Mirko Aach, Christian Waydhas, Thomas A Schildhauer, Oliver Jansen
BACKGROUND: Ankylosing spondylitis (AS) is a common disease with an incidence of approximately 0.5% in Europe, causing severe limitations of axial spine mobility and cervical kyphosis. Deformities of the cervical spine and the temporomandibular joints could increase the risk of complications while performing an intubation or tracheostomy. The percutaneous dilatational tracheostomy (PDT) is a standard procedure in intensive care medicine. However, the combination of cervical kyphosis and osteoporosis makes patient positioning challenging...
November 15, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27852080/prevalence-of-small-airway-dysfunction-among-copd-patients-with-different-gold-stages-and-its-role-in-the-impact-of-disease
#20
Ernesto Crisafulli, Roberta Pisi, Marina Aiello, Matteo Vigna, Panagiota Tzani, Anna Torres, Giuseppina Bertorelli, Alfredo Chetta
BACKGROUND: In chronic obstructive pulmonary disease (COPD) patients, small-airway dysfunction (SAD) is considered a functional hallmark of disease. However, the exact role of SAD in the clinical presentation of COPD is not yet completely understood; moreover, it is not known whether SAD may have a relationship with the impact of disease. OBJECTIVES: To evaluate the prevalence of SAD among COPD patients categorized by the old and the new GOLD classification and to ascertain whether there is a relationship between SAD and impact of disease measured by the COPD Assessment Test (CAT) questionnaire...
November 17, 2016: Respiration; International Review of Thoracic Diseases
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