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idiopathic pulmonary

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https://www.readbyqxmd.com/read/28640655/usual-interstitial-pneumonia-can-be-detected-in-transbronchial-biopsies-using-machine-learning
#1
Daniel G Pankratz, Yoonha Choi, Urooj Imtiaz, Grażyna M Fedorowicz, Jessica D Anderson, Thomas V Colby, Jeffrey L Myers, David A Lynch, Kevin K Brown, Kevin R Flaherty, Mark P Steele, Steve D Groshong, Ganesh Raghu, Neil M Barth, P Sean Walsh, Jing Huang, Giulia C Kennedy, Fernando J Martinez
RATIONALE: Usual interstitial pneumonia (UIP) is the histopathologic hallmark of idiopathic pulmonary fibrosis. While UIP can be detected by high-resolution computed tomography (HRCT) of the chest, HRCT results are frequently inconclusive, and pathology from transbronchial biopsy (TBB) has poor sensitivity. Surgical lung biopsy (SLB) may be necessary for a definitive diagnosis. OBJECTIVES: To develop a genomic classifier in tissue obtained by TBB that distinguishes UIP from non-UIP, trained against central pathology as the reference standard...
June 22, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28635908/-idiopatic-pulmonary-fibrosis-a-new-paradigm
#2
S N Avdeev
Idiopathic pulmonary fibrosis ((IPF) is the most common disease from a group of interstitial lung diseases, which occurs mainly in middle-aged and elderly people. Over the past decade, there have been considerable changes in approaches to diagnosing and treating IPF. The paper presents an update on the epidemiology of IPF, the results of new studies of its pathogenesis, and main approaches to diagnosing the disease. In addition, there is new evidence on therapy for IPF.
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28632001/vasodilator-responsiveness-in-idiopathic-pulmonary-arterial-hypertension-identifying-a-distinct-phenotype-with-distinct-physiology-and-distinct-prognosis
#3
David Langleben, Stylianos Orfanos
Within the cohort of patients suffering from idiopathic pulmonary arterial hypertension (IPAH) is a group that responds dramatically (VR-PAH) to an acute vasodilator challenge and that has excellent long-term hemodynamic improvement and prognosis on high dose calcium channel blockers compared with vasodilator non-responders (VN-PAH). For the purposes of diagnosing VR-PAH, there is to date no test to replace the acute vasodilator challenge. However, recent studies have identified markers that may aid in the identification of VR-PAH, including peripheral blood lymphocyte RNA expression levels of desmogelin-2 and Ras homolog gene family member Q, and plasma levels of provirus integration site for Moloney murine leukemia virus...
June 20, 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28629920/pulmonary-hypertension-in-parenchymal-lung-diseases-any-future-for-new-therapies
#4
REVIEW
Sergio Harari, Davide Elia, Marc Humbert
Pulmonary hypertension (PH) due to chronic lung diseases is associated with a poor prognosis, regardless of the underlying respiratory condition. Updated PH guidelines recommend optimal treatment of the underlying lung disease, including long-term oxygen therapy, in patients with chronic hypoxaemia despite the lack of randomized controlled clinical trials supporting this statement. So far, randomized controlled trials on drugs approved for pulmonary arterial hypertension (PAH) have yielded discouraging results in both interstitial lung diseases (ILD) and chronic obstructive pulmonary diseases (COPD) with PH...
June 16, 2017: Chest
https://www.readbyqxmd.com/read/28629448/azithromycin-for-idiopathic-acute-exacerbation-of-idiopathic-pulmonary-fibrosis-a-retrospective-single-center-study
#5
Kodai Kawamura, Kazuya Ichikado, Yuko Yasuda, Keisuke Anan, Moritaka Suga
BACKGROUND: Acute exacerbation (AE) of idiopathic pulmonary fibrosis (IPF) is a fatal condition without an established pharmaceutical treatment. Most patients are treated with high-dose corticosteroids and broad-spectrum antibiotics. Azithromycin is a macrolide with immunomodulatory activity and may be beneficial for treatment of acute lung injury. The objective of this study was to determine the effect of azithromycin on survival of patients with idiopathic AE of IPF. METHODS: We evaluated 85 consecutive patients hospitalized in our department for idiopathic AE of IPF from April 2005 to August 2016...
June 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28629363/fibroblast-paracrine-tnf-%C3%AE-signaling-elevates-integrin-a5-expression-in-idiopathic-pulmonary-fibrosis-ipf
#6
Gali Epstein Shochet, Elizabetha Brook, Lilach Israeli-Shani, Evgeny Edelstein, David Shitrit
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with a poor prognosis. Inflammatory cytokines play a significant role in IPF pathology. However, the fibroblast itself is also believed to be the primary effector in IPF. We hypothesized that the fibroblasts themselves secrete pro-inflammatory cytokines that could propagate IPF by affecting normal neighboring cells. Thus, we explored the effects of IPF fibroblast derived media on normal fibroblast characteristics...
June 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28626631/chronic-eosinophilic-pneumonia-adjunctive-therapy-with-inhaled-steroids
#7
Christopher Chan, David DeLapp, Perry Nystrom
Idiopathic chronic eosinophilic pneumonia (ICEP) is a rare form of diffuse parenchymal lung disease first identified by Carrington et al. in 1969. It is characterized by the presence of constitutional and respiratory symptoms with associated peripheral opacities on imaging and elevated serum and/or bronchoalveolar eosinophilia. Although data is limited regarding etiology or prevalence, it is known that ICEP has a 2:1 female: male predominance and typically affects non-smokers. Diagnosis rests on the clinical constellation of respiratory symptoms of at least 2-4 weeks duration, the presence of diffuse pulmonary alveolar consolidation, classically described as the "photographic negative of pulmonary edema", the presence of eosinophils ≥40% on bronchoalveolar lavage or ≥1000/mm(3) eosinophils on peripheral blood and the exclusion of other known causes of eosinophilic lung diseases such as drugs, toxins, fungi, parasites, and collagen-vascular disorders...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28624389/plasma-proteome-analysis-in-patients-with-pulmonary-arterial-hypertension-an-observational-cohort-study
#8
Christopher J Rhodes, John Wharton, Pavandeep Ghataorhe, Geoffrey Watson, Barbara Girerd, Luke S Howard, J Simon R Gibbs, Robin Condliffe, Charles A Elliot, David G Kiely, Gerald Simonneau, David Montani, Olivier Sitbon, Henning Gall, Ralph T Schermuly, H Ardeschir Ghofrani, Allan Lawrie, Marc Humbert, Martin R Wilkins
BACKGROUND: Idiopathic and heritable pulmonary arterial hypertension form a rare but molecularly heterogeneous disease group. We aimed to measure and validate differences in plasma concentrations of proteins that are associated with survival in patients with idiopathic or heritable pulmonary arterial hypertension to improve risk stratification. METHODS: In this observational cohort study, we enrolled patients with idiopathic or heritable pulmonary arterial hypertension from London (UK; cohorts 1 and 2), Giessen (Germany; cohort 3), and Paris (France; cohort 4)...
June 14, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28624000/aneurysms-of-the-azygos-vein
#9
REVIEW
Maximilian Kreibich, Matthias Siepe, Jochen Grohmann, Gregor Pache, Friedhelm Beyersdorf
OBJECTIVE: Azygos vein aneurysms (AVAs) are uncommon and infrequently diagnosed. When confronted with a patient presenting with an AVA, physicians can rely on only a few case reports after an extensive literature search. To date, no guideline, no rule, and no review on the optimal treatment strategy for these patients exist. METHODS: A PubMed and MEDLINE database search for papers and case reports describing AVA was performed. Cases from our own institutions were also reviewed...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623539/pneumothorax-after-transbronchial-biopsy-in-pulmonary-fibrosis-lessons-from-the-multicenter-comet-trial
#10
Jonathan A Galli, Nicholas L Panetta, Nathaniel Gaeckle, Fernando J Martinez, Bethany Moore, Thomas Moore, Anthony Courey, Kevin Flaherty, Gerard J Criner
PURPOSE: Some patients with diffuse interstitial lung disease (ILD) undergo bronchoscopy with transbronchial biopsy (TBB) as part of their diagnostic evaluation. It is unclear what the incidence and risk factors for pneumothorax (PTX) following TBB are in this patient population. METHODS: Ninety-seven subjects with pulmonary fibrosis who underwent a research bronchoscopy with TBB as part of the multicenter correlating outcomes with biochemical markers to estimate time-progression in idiopathic pulmonary fibrosis (COMET) trial were retrospectively reviewed...
June 16, 2017: Lung
https://www.readbyqxmd.com/read/28622199/antifibrotic-drugs-as-treatment-of-nonidiopathic-pulmonary-fibrosis-interstitial-pneumonias-the-time-is-now
#11
Michael Kreuter, Julia Wälscher, Jürgen Behr
PURPOSE OF REVIEW: Therapeutic advances in the management of idiopathic pulmonary fibrosis (IPF) has led to improved outcomes with the use of the antifibrotic agents pirfenidone and nintedanib, with a number of randomized studies demonstrating benefits in slowing disease progression in IPF. However, treatment of other fibrosing interstitial lung diseases (ILD) remains challenging. RECENT FINDINGS: Observational and uncontrolled studies investigating pirfenidone and nintedanib in non-IPF ILDs suggest potential benefits, although the data is weak...
June 15, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28619995/codependence-of-bone-morphogenetic-protein-receptor-2-and-transforming-growth-factor-%C3%AE-in-elastic-fiber-assembly-and-its-perturbation-in-pulmonary-arterial-hypertension
#12
Nancy F Tojais, Aiqin Cao, Ying-Ju Lai, Lingli Wang, Pin-I Chen, Miguel A Alejandre Alcazar, Vinicio de Jesus Perez, Rachel K Hopper, Christopher J Rhodes, Matthew A Bill, Lynn Y Sakai, Marlene Rabinovitch
OBJECTIVE: We determined in patients with pulmonary arterial (PA) hypertension (PAH) whether in addition to increased production of elastase by PA smooth muscle cells previously reported, PA elastic fibers are susceptible to degradation because of their abnormal assembly. APPROACH AND RESULTS: Fibrillin-1 and elastin are the major components of elastic fibers, and fibrillin-1 binds bone morphogenetic proteins (BMPs) and the large latent complex of transforming growth factor-β1 (TGFβ1)...
June 15, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28619664/nailfold-capillaroscopic-changes-in-patients-with-idiopathic-pulmonary-arterial-hypertension-and-systemic-sclerosis-related-pulmonary-arterial-hypertension
#13
A Corrado, M Correale, N Mansueto, I Monaco, A Carriero, A Mele, R Colia, M Di Biase, F P Cantatore
Pulmonary arterial hypertension (PAH) represents one of the main clinical expressions of the vascular changes in systemic sclerosis (SSc). Lung microvascular changes can play a role in the pathogenesis of idiopathic PAH (IPAH) also. The aim of this study is to investigate the presence of capillaroscopic abnormalities in patients with IPAH and to evaluate the differences in capillary nailfold changes between patients with IPAH and patients with SSc with and without PAH. METHODS: 39 SSc patients (19 with PAH - SSc-PAH and 20 without - SSc-noPAH), 21 subjects with IPAH and 20 healthy subjects were recruited...
June 12, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28619094/morphologic-and-molecular-study-of-lung-cancers-associated-with-idiopathic-pulmonary-fibrosis-and-other-pulmonary-fibroses
#14
Alice Guyard, Claire Danel, Nathalie Théou-Anton, Marie-Pierre Debray, Laure Gibault, Pierre Mordant, Yves Castier, Bruno Crestani, Gérard Zalcman, Hélène Blons, Aurélie Cazes
BACKGROUND: Primitive lung cancers developed on lung fibroses are both diagnostic and therapeutic challenges. Their incidence may increase with new more efficient lung fibrosis treatments. Our aim was to describe a cohort of lung cancers associated with idiopathic pulmonary fibrosis (IPF) and other lung fibrotic disorders (non-IPF), and to characterize their molecular alterations using immunohistochemistry and next-generation sequencing (NGS). METHODS: Thirty-one cancer samples were collected from 2001 to 2016 in two French reference centers for pulmonary fibrosis - 18 for IPF group and 13 for non-IPF group...
June 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28617305/fibrotic-hypersensitivity-pneumonitis-key-issues-in-diagnosis-and-management
#15
REVIEW
Vasileios Kouranos, Joseph Jacob, Andrew Nicholson, Elizabetta Renzoni
The diagnosis of hypersensitivity pneumonitis (HP) relies on the clinical evaluation of a number of features, including a history of significant exposure to potentially causative antigens, physical examination, chest CT scan appearances, bronchoalveolar lavage lymphocytosis, and, in selected cases, histology. The presence of fibrosis is associated with higher morbidity and mortality. Differentiating fibrotic HP from the idiopathic interstitial pneumonias can be a challenge. Furthermore, even in the context of a clear diagnosis of fibrotic HP, the disease behaviour can parallel that of idiopathic pulmonary fibrosis in a subgroup, with inexorable progression despite treatment...
June 15, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28617080/host-microbial-interactions-idiopathic-pulmonary-fibrosis-in-technicolor
#16
David N O'Dwyer, David Habiel, Cory Hogaboam
No abstract text is available yet for this article.
June 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28615246/src-family-kinases-in-chronic-kidney-disease
#17
Jun Wang, Shougang Zhuang
Src family kinases (SFKs) belong to non-receptor protein tyrosine kinases (PTKs) and have been implicated in the regulation of numerous cellular processes, including cell proliferation, differentiation, migration and invasion, angiogenesis. The role and mechanisms of SFKs in tumorgenesis have been extensively investigated and some of SFK inhibitors are currently under clinical trials for tumor treatment. Recent studies have also demonstrated the importance of SFKs in regulating the development of various fibrosis related chronic diseases (e...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28613983/azithromycin-attenuates-myofibroblast-differentiation-and-lung-fibrosis-development-through-proteasomal-degradation-of-nox4
#18
Kazuya Tsubouchi, Jun Araya, Shunsuke Minagawa, Hiromichi Hara, Akihiro Ichikawa, Nayuta Saito, Tsukasa Kadota, Nahoko Sato, Masahiro Yoshida, Yusuke Kurita, Kenji Kobayashi, Saburo Ito, Yu Fujita, Hirofumi Utsumi, Haruhiko Yanagisawa, Mitsuo Hashimoto, Hiroshi Wakui, Yutaka Yoshii, Takeo Ishikawa, Takanori Numata, Yumi Kaneko, Hisatoshi Asano, Makoto Yamashita, Makoto Odaka, Toshiaki Morikawa, Katsutoshi Nakayama, Yoichi Nakanishi, Kazuyoshi Kuwano
Accumulation of profibrotic myofibroblasts is involved in the process of fibrosis development during idiopathic pulmonary fibrosis (IPF) pathogenesis. TGFB (transforming growth factor beta) is one of the major profibrotic cytokines for myofibroblast differentiation and NOX4 (NADPH oxidase 4) has an essential role in TGFB-mediated cell signaling. Azithromycin (AZM), a second-generation antibacterial macrolide, has a pleiotropic effect on cellular processes including proteostasis. Hence, we hypothesized that AZM may regulate NOX4 levels by modulating proteostasis machineries, resulting in inhibition of TGFB-associated lung fibrosis development...
June 14, 2017: Autophagy
https://www.readbyqxmd.com/read/28613935/obstructive-sleep-apnea-and-subclinical-interstitial-lung-disease-in-mesa
#19
John S Kim, Anna J Podolanczuk, Priya Borker, Steven M Kawut, Ganesh Raghu, Joel D Kaufman, Karen D Hinckley Stukovsky, Eric A Hoffman, R Graham Barr, Daniel J Gottlieb, Susan S Redline, David J Lederer
RATIONALE: Obstructive sleep apnea (OSA) has been postulated to contribute to idiopathic pulmonary fibrosis by promoting alveolar epithelial injury via tractional forces and intermittent hypoxia. OBJECTIVE: To determine whether OSA is associated with subclinical interstitial lung disease (ILD) and with biomarkers of alveolar epithelial injury and remodeling. METHODS: We performed cross-sectional analyses of 1,690 community-dwelling adults who underwent 15-channel in-home polysomnography and thoracic computed tomography (CT) imaging in the Multi-Ethnic Study of Atherosclerosis...
June 14, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28611390/protective-and-therapeutic-effect-of-felodipine-against-bleomycin-induced-pulmonary-fibrosis-in-mice
#20
Ken-Ichiro Tanaka, Tomomi Niino, Tomoaki Ishihara, Ayaka Takafuji, Takahiro Takayama, Yuki Kanda, Toshifumi Sugizaki, Fumiya Tamura, Shota Kurotsu, Masahiro Kawahara, Tohru Mizushima
Idiopathic pulmonary fibrosis (IPF) involves alveolar epithelial injury and abnormal collagen production caused by activated fibroblasts; transforming growth factor (TGF)-β1 is implicated in this activation. In this study, we screened for chemicals capable of inhibiting TGF-β1-induced collagen production in cultured fibroblasts from medicines already in clinical use. We selected felodipine based on its extent of collagen production inhibition, clinical safety profile, and other pharmacological activity. Felodipine is a dihydropyridine Ca(2+) channel blocker that has been used clinically to treat patients with high blood pressure...
June 13, 2017: Scientific Reports
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