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https://www.readbyqxmd.com/read/28239659/hsp90-regulation-of-fibroblast-activation-in-pulmonary-fibrosis
#1
Vishwaraj Sontake, Yunguan Wang, Rajesh K Kasam, Debora Sinner, Geereddy B Reddy, Anjaparavanda P Naren, Francis X McCormack, Eric S White, Anil G Jegga, Satish K Madala
Idiopathic pulmonary fibrosis (IPF) is a severe fibrotic lung disease associated with fibroblast activation that includes excessive proliferation, tissue invasiveness, myofibroblast transformation, and extracellular matrix (ECM) production. To identify inhibitors that can attenuate fibroblast activation, we queried IPF gene signatures against a library of small-molecule-induced gene-expression profiles and identified Hsp90 inhibitors as potential therapeutic agents that can suppress fibroblast activation in IPF...
February 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28239621/assay-to-evaluate-bal-fluid-regulation-of-fibroblast-%C3%AE-sma-expression
#2
Jennifer L Larson-Casey, A Brent Carter
: Because transforming growth factor-β (TGF-β1) induces differentiation of fibroblasts to myofibroblasts, we developed a protocol to evaluate alveolar macrophage-derived TGF-β1 regulation of lung fibroblast differentiation (Larson-Casey et al., 2016). The protocol allows evaluating the ability of mouse bronchoalveolar lavage (BAL) fluid to alter fibroblast differentiation. Fibroblast differentiation was measured by the expression of α-smooth muscle actin (α-SMA). BACKGROUND: Alveolar macrophages play an integral role in pulmonary fibrosis development by increasing the expression of TGF-β1 (He et al...
November 20, 2016: Bio-protocol
https://www.readbyqxmd.com/read/28239354/matrix-metalloproteinases-7-and-kidney-fibrosis
#3
REVIEW
Ben Ke, Chuqiao Fan, Liping Yang, Xiangdong Fang
Matrix metalloproteinase-7 (MMP-7) is a secreted zinc- and calcium-dependent endopeptidase that degrades a broad range of extracellular matrix substrates and additional substrates. MMP-7 playsa crucial role in a diverse array of cellular processes and appears to be a key regulator of fibrosis in several diseases, including pulmonary fibrosis, liver fibrosis, and cystic fibrosis. In particular, the relationship between MMP-7 and kidney fibrosis has attracted significant attention in recent years. Growing evidence indicates that MMP-7 plays an important role in the pathogenesis of kidney fibrosis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28237967/heterozygous-vangl2-looptail-mice-reveal-novel-roles-for-the-planar-cell-polarity-pathway-in-adult-lung-homeostasis-and-repair
#4
Thanushiyan Poobalasingam, Laura L Yates, Simone A Walker, Miguel Pereira, Nina Y Gross, Akmol Ali, Maria Kolatsi-Joannou, Marjo-Riitta Jarvelin, Juha Pekkanen, Eugenia Papakrivopoulou, David A Long, Mark Griffiths, Darcy Wagner, Melanie Königshoff, Matthew Hind, Cosetta Minelli, Clare M Lloyd, Charlotte H Dean
Lung diseases impose a huge economic and health burden worldwide. A key aspect of several adult lung diseases, such as Idiopathic pulmonary fibrosis (IPF) and Chronic Obstructive pulmonary Disease (COPD), including emphysema, is aberrant tissue repair, which leads to an accumulation of damage and impaired respiratory function. Currently, there are few effective treatments available for these diseases and their incidence is rising.The Planar Cell Polarity (PCP) pathway is critical for the embryonic development of many organs, including kidney and lung...
February 24, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28231275/suppression-of-tgf-%C3%AE-pathway-by-pirfenidone-decreases-extracellular-matrix-deposition-in-ocular-fibroblasts-in-vitro
#5
Thomas Stahnke, Bhavani S Kowtharapu, Oliver Stachs, Klaus-Peter Schmitz, Johannes Wurm, Andreas Wree, Rudolf Friedrich Guthoff, Marina Hovakimyan
In glaucoma surgery, fibrotic processes occur, leading to impairment of liquid outflow. Activated fibroblasts are responsible for postoperative scarring. The transforming growth factor-β (TGF-β) pathway plays a key role in fibroblast function, differentiation and proliferation. The aim of this study was the characterization of the fibrotic potential of two subtypes of primary human ocular fibroblasts and the attempt to inhibit fibrotic processes specifically, without impairing cell viability. For fibrosis inhibition we focused on the small molecule pirfenidone, which has been shown to prevent pulmonary fibrosis by the decrease of the expression of TGF-β1, TGF-β2 and TGF-β3 cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28230086/classification-of-idiopathic-interstitial-pneumonias-using-anti-myxovirus-resistance-protein-1-autoantibody
#6
Yoshimasa Hamano, Hiroshi Kida, Shoichi Ihara, Akihiro Murakami, Masahiro Yanagawa, Ken Ueda, Osamu Honda, Lokesh P Tripathi, Toru Arai, Masaki Hirose, Toshimitsu Hamasaki, Yukihiro Yano, Tetsuya Kimura, Yasuhiro Kato, Hyota Takamatsu, Tomoyuki Otsuka, Toshiyuki Minami, Haruhiko Hirata, Koji Inoue, Izumi Nagatomo, Yoshito Takeda, Masahide Mori, Hiroyoshi Nishikawa, Kenji Mizuguchi, Takashi Kijima, Masanori Kitaichi, Noriyuki Tomiyama, Yoshikazu Inoue, Atsushi Kumanogoh
Chronic fibrosing idiopathic interstitial pneumonia (IIP) can be divided into two main types: idiopathic pulmonary fibrosis (IPF), a steroid-resistant and progressive disease with a median survival of 2-3 years, and idiopathic non-specific interstitial pneumonia (INSIP), a steroid-sensitive and non-progressive autoimmune disease. Although the clinical courses of these two diseases differ, they may be difficult to distinguish at diagnosis. We performed a comprehensive analysis of serum autoantibodies from patients definitively diagnosed with IPF, INSIP, autoimmune pulmonary alveolar proteinosis, and sarcoidosis...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230051/cellular-senescence-mediates-fibrotic-pulmonary-disease
#7
Marissa J Schafer, Thomas A White, Koji Iijima, Andrew J Haak, Giovanni Ligresti, Elizabeth J Atkinson, Ann L Oberg, Jodie Birch, Hanna Salmonowicz, Yi Zhu, Daniel L Mazula, Robert W Brooks, Heike Fuhrmann-Stroissnigg, Tamar Pirtskhalava, Y S Prakash, Tamara Tchkonia, Paul D Robbins, Marie Christine Aubry, João F Passos, James L Kirkland, Daniel J Tschumperlin, Hirohito Kita, Nathan K LeBrasseur
Idiopathic pulmonary fibrosis (IPF) is a fatal disease characterized by interstitial remodelling, leading to compromised lung function. Cellular senescence markers are detectable within IPF lung tissue and senescent cell deletion rejuvenates pulmonary health in aged mice. Whether and how senescent cells regulate IPF or if their removal may be an efficacious intervention strategy is unknown. Here we demonstrate elevated abundance of senescence biomarkers in IPF lung, with p16 expression increasing with disease severity...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28229819/dabigatran-aggravates-topoisomerase-i-peptide-loaded-dendritic-cells-induced-lung-and-skin-fibrosis
#8
Heena Mehta, Philippe-Olivier Goulet, Jade Desjardins, Gemma Pérez, Martial Koenig, Jean-Luc Senécal, Marika Sarfati
OBJECTIVES: Dysregulated coagulation cascade has been implicated in development of fibrosis in systemic sclerosis (SSc). Thrombin, a key mediator of the coagulation pathway, has both proinflammatory and procoagulant properties. Here, we evaluated the efficacy of oral dabigatran, a direct thrombin inhibitor, on topoisomerase I dendritic cells (TOPOIA DCs)-induced lung and skin fibrosis, an experimental model of SSc. METHODS: Mice were repeatedly immunized with TOPOIA DCs...
February 8, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28229818/relationship-between-calcium-channel-blockers-and-skin-fibrosis-in-patients-with-systemic-sclerosis
#9
Guowei Li, Jonathan D Adachi, Ji Cheng, Lehana Thabane, Marie Hudson, Marvin J Fritzler, Steven Lorenzi, Murray Baron, Maggie Larché
OBJECTIVES: Recent experimental evidence suggests that calcium channel blockers (CCBs) may have anti-fibrotic effects on liver and pulmonary fibrosis. We aimed to investigate whether use of CCBs was associated with the skin fibrosis in patients with systemic sclerosis (SSc). METHODS: Based on the 5-year follow-up data from the Canadian Scleroderma Research Group registry, we used the generalised estimating equations (GEE) model to assess the relationship between use of CCBs and the primary outcome of skin fibrosis measured by the modified Rodnan skin score (mRSS)...
January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28229501/comparison-between-sedation-and-general-anesthesia-for-high-resolution-computed-tomographic-characterization-of-canine-idiopathic-pulmonary-fibrosis-in-west-highland-white-terriers
#10
Elodie Roels, Thierry Couvreur, Frédéric Farnir, Cécile Clercx, Johny Verschakelen, Géraldine Bolen
Canine idiopathic pulmonary fibrosis is a progressive interstitial lung disease mainly affecting West Highland white terriers. Thoracic high-resolution computed tomographic (T-HRCT) findings for Canine idiopathic pulmonary fibrosis acquired under general anesthesia have been described previously. However, the use of general anesthesia may be contraindicated for some affected dogs. Sedation may allow improved speed and safety, but it is unknown whether sedation would yield similar results in identification and grading of Canine idiopathic pulmonary fibrosis lesions...
February 23, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28229083/what-patients-with-pulmonary-fibrosis-and-their-partners-think-a-live-educative-survey-in-the-netherlands-and-germany
#11
Mirjam J G van Manen, Michael Kreuter, Bernt van den Blink, Ute Oltmanns, Karin Palmowski, Eva Brunnemer, Simone Hummler, Nelleke C Tak, Leon van den Toorn, Jelle Miedema, Henk C Hoogsteden, Marlies S Wijsenbeek
Pulmonary fibrosis greatly impacts patients and their partners. Unmet needs of patients are increasingly acknowledged; the needs of partners often remain unnoticed. Little is known about the best way to educate patients and partners. We investigated pulmonary fibrosis patients' and partners' perspectives and preferences in care, and the differences in these between the Netherlands and Germany. Additionally, we evaluated whether interactive interviewing could be a novel education method in this population. Patients and partners were interviewed during pulmonary fibrosis patient information meetings...
January 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28227192/acoustic-evaluation-of-pirfenidone-on-patients-with-combined-pulmonary-fibrosis-emphysema-syndrome
#12
Sonia Charleston-Villalobos, Norma Castaneda-Villa, Ramon Gonzalez-Camarena, M Mejia-Avila, H Mateos-Toledo, Tomas Aljama-Corrales, Sonia Charleston-Villalobos, Norma Castaneda-Villa, Ramon Gonzalez-Camarena, M Mejia-Avila, H Mateos-Toledo, Tomas Aljama-Corrales, Tomas Aljama-Corrales, Ramon Gonzalez-Camarena, Sonia Charleston-Villalobos, Norma Castaneda-Villa, M Mejia-Avila, H Mateos-Toledo
The combined pulmonary fibrosis emphysema syndrome (CPFES) overall has a poor prognosis with a 5-year survival of 35-80%. Consequently, to evaluate possible positive effects on patients of novel agents as pirfenidone is relevant. However, the efficacy of pirfenidone in CPFES patients is still not well-known. In this study we propose an alternative to evaluate the effects of pirfenidone treatment on CPFES patients via acoustic information. Quantitative analysis of discontinuous adventitious lung sounds (DLS), known as crackles, has been promising to detect and characterize diverse pulmonary pathologies...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225205/greater-endurance-capacity-and-improved-dyspnoea-with-acute-oxygen-supplementation-in-idiopathic-pulmonary-fibrosis-patients-without-resting-hypoxaemia
#13
Leona M Dowman, Christine F McDonald, Steven Bozinovski, Ross Vlahos, Rebecca Gillies, Dodie Pouniotis, Catherine J Hill, Nicole S L Goh, Anne E Holland
BACKGROUND AND OBJECTIVE: Supplemental oxygen is commonly prescribed in patients with idiopathic pulmonary fibrosis (IPF), although its benefits have not been proven. The aims of this study were to investigate the effect of oxygen on oxidative stress, cytokine production, skeletal muscle metabolism and physiological response to exercise in IPF. METHODS: Eleven participants with IPF received either oxygen, at an FiO2 of 0.50, or compressed air for 1 h at rest and during a cycle endurance test at 85% of peak work rate...
February 22, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28222740/dibutyryl-camp-attenuates-pulmonary-fibrosis-by-blocking-myofibroblast-differentiation-via-pka-creb-cbp-signaling-in-rats-with-silicosis
#14
Yan Liu, Hong Xu, Yucong Geng, Dingjie Xu, Lijuan Zhang, Yi Yang, Zhongqiu Wei, Bonan Zhang, Shifeng Li, Xuemin Gao, Ruimin Wang, Xianghong Zhang, Darrell Brann, Fang Yang
BACKGROUND: Myofibroblasts play a major role in the synthesis of extracellular matrix (ECM) and the stimulation of these cells is thought to play an important role in the development of silicosis. The present study was undertaken to investigate the anti-fibrotic effects of dibutyryl-cAMP (db-cAMP) on rats induced by silica. METHODS: A HOPE MED 8050 exposure control apparatus was used to create the silicosis model. Rats were randomly divided into 4 groups: 1)controls for 16 w; 2)silicosis for 16 w; 3)db-cAMP pre-treatment; 4) db-cAMP post-treatment...
February 21, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28218840/drug-repurposing-of-histone-deacetylase-inhibitors-that-alleviate-neutrophilic-inflammation-in-acute-lung-injury-and-idiopathic-pulmonary-fibrosis-via-inhibiting-leukotriene-a4-hydrolase-and-blocking-ltb4-biosynthesis
#15
Weiqiang Lu, Xue Yao, Ping Ouyang, Ningning Dong, Dang Wu, Xingwu Jiang, Zengrui Wu, Chen Zhang, Zhongyu Xu, Yun Tang, Shien Zou, Mingyao Liu, Jian Li, Ming-Hua Zeng, Ping Lin, Feixiong Cheng, Jin Huang
Acute lung injury (ALI) and idiopathic pulmonary fibrosis (IPF) are both serious public health problems with high incidence and mortality rate in adults, and with few drugs available for the efficient treatment in clinic. In this study, we identified that two known histone deacetylase (HDAC) inhibitors, suberanilohydroxamic acid (SAHA, 1) and its analog 4-(dimethylamino)-N-[7-(hydroxyamino)-7-oxoheptyl]benzamide (2), are effective inhibitors of Leukotriene A4 hydrolase (LTA4H), a key enzyme in the biosynthesis of leukotriene B4 (LTB4), across a panel of 18 HDAC inhibitors, using enzymatic assay, thermofluor assay, and X-ray Crystallographic investigation...
February 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28216388/advances-in-mechanisms-and-management-of-chronic-cough-the-ninth-london-international-cough-symposium-2016
#16
REVIEW
Kian Fan Chung
At the Ninth London International Cough Symposium held in June 2016, advances in chronic cough were presented. Chronic cough has been labelled as a cough hypersensitivity syndrome (CHS) with neuroinflammatory mechanisms likely to be the underlying mechanisms. The concept is that there is a stage of peripheral sensitisation induced by inflammatory factors setting up the scene for a central component that can be visualised by functional magnetic resonance imaging. There has also been progress in assessing CHS patients in the clinic in terms of measuring cough, with an increasing interest in assessing different types of cough associated with respiratory diseases such as asthma, COPD, bronchiectasis and pulmonary fibrosis...
February 16, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28215586/role-of-human-bocavirus-in-idiopathic-pulmonary-fibrosis
#17
EDITORIAL
Wolfram Windisch, Verena Schildgen, Oliver Schildgen
No abstract text is available yet for this article.
February 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28215519/repeatability-of-computerized-tomography-based-anthropomorphic-measurements-of-frailty-in-patients-with-pulmonary-fibrosis-undergoing-lung-transplantation
#18
Taylor McClellan, Brian C Allen, Matthew Kappus, Lubna Bhatti, Randa A Dafalla, Laurie D Snyder, Mustafa R Bashir
PURPOSE: To determine interreader and intrareader repeatability and correlations among measurements of computerized tomography-based anthropomorphic measurements in patients with pulmonary fibrosis undergoing lung transplantation. METHODS: This was an institutional review board-approved, Health Insurance Portability and Accountability Act-compliant retrospective study of 23 randomly selected subjects (19 male and 4 female; median age = 69 years; range: 66-77 years) with idiopathic pulmonary fibrosis undergoing pulmonary transplantation, who had also undergone preoperative thoracoabdominal computerized tomography...
December 29, 2016: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28213592/the-evidence-of-benefits-of-exercise-training-in-interstitial-lung-disease-a-randomised-controlled-trial
#19
Leona M Dowman, Christine F McDonald, Catherine J Hill, Annemarie L Lee, Kathryn Barker, Claire Boote, Ian Glaspole, Nicole S L Goh, Anne M Southcott, Angela T Burge, Rebecca Gillies, Alicia Martin, Anne E Holland
BACKGROUND: Uncertainty exists regarding the clinical relevance of exercise training across the range of interstitial lung diseases (ILDs). OBJECTIVE: To establish the impact of exercise training in patients with ILDs of differing aetiology and severity. METHODS: 142 participants with ILD (61 idiopathic pulmonary fibrosis (IPF), 22 asbestosis, 23 connective tissue disease-related ILD (CTD-ILD) and 36 with other aetiologies) were randomised to either 8 weeks of supervised exercise training or usual care...
February 17, 2017: Thorax
https://www.readbyqxmd.com/read/28213468/microencapsulation-of-lefty-secreting-engineered-cells-for-pulmonary-fibrosis-therapy-in-mice
#20
Hongge Ma, Shupei Qiao, Zeli Wang, Shuai Geng, Yufang Zhao, Xiaolu Hou, Weiming Tian, Xiongbiao Chen, Lifen Yao
Idiopathic pulmonary fibrosis (IPF) is a progressive disease that causes unremitting deposition of extracellular matrix proteins, thus resulting in distortion of the pulmonary architecture and impaired gas exchange. Associated with high morbidity and mortality, IPF is generally refractory to current pharmacological therapies. Lefty A, a potent inhibitor of transforming growth factor (TGF)-β signaling, has been shown to have promising antifibrotic ability in vitro for the treatment of renal fibrosis and other potential organ fibroses...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
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