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https://www.readbyqxmd.com/read/27933058/skewed-lung-ccr4-to-ccr6-cd4-t-cell-ratio-in-idiopathic-pulmonary-fibrosis-is-associated-with-pulmonary-function
#1
Ayodeji Adegunsoye, Cara L Hrusch, Catherine A Bonham, Mohammad R Jaffery, Kelly M Blaine, Meghan Sullivan, Matthew M Churpek, Mary E Strek, Imre Noth, Anne I Sperling
RATIONALE: Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal lung disease. While it has been suggested that T cells may contribute to IPF pathogenesis, these studies have focused primarily on T cells outside of the pulmonary interstitium. Thus, the role of T cells in the diseased lung tissue remains unclear. OBJECTIVE: To identify whether specific CD4(+) T cell subsets are differentially represented in lung tissue from patients with IPF. METHODS: CD4(+) T cell subsets were measured in lung tissue obtained from patients with IPF at the time of lung transplantation, and from age- and gender-matched organ donors with no known lung disease...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27925428/measuring-sedentary-behaviours-in-patients-with-idiopathic-pulmonary-fibrosis-using-wrist-worn-accelerometers
#2
Chris Atkins, Mark Baxter, Andrew Jones, Andrew Wilson
Introduction - Idiopathic pulmonary fibrosis (IPF) patients suffer increasing functional limitation with disease worsening disease. Increasing time in sedentary behaviour has been associated with poorer quality of life. Determining thresholds for activity in patients with respiratory disease is difficult due to variable cardiorespiratory limitations between individuals. Measuring sedentary behaviour is not confounded by this limitation and may be a better measurement of activity in patients with respiratory disease...
December 7, 2016: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/27916096/-mir-21-promotes-pulmonary-fibrosis-in-rats-via-down-regulating-the-expression-of-adamts-1
#3
Lijing Liu, Huiming Yin, Minjiang Huang, Jianbin He, Gaozhong Yi, Zaiyan Wang, Hong Qian
Objective To observe the effect of miR-21 on bleomycin-induced pulmonary fibrosis in rats, and explore the related mechanism. Methods Peripheral blood was collected from idiopathic pulmonary fibrosis (IPF) patients (n=20) and healthy adults (n=20). Fluorescence quantitative real-time PCR was then used to measure miR-21 expression. Forty-five SD rats were randomly divided into control group, miR-21 agomir group and miR-21 antagomir group. Each group included 15 rats. After establishment of pulmonary fibrosis models by intratracheal administration with bleomycin A5, rats in control group, miR-21 agomir group and miR-21 antagomir group were injected at caudal vein with normal saline, miR21 agomir and miR21 antagomir, respectively...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27910075/idiopathic-pulmonary-fibrosis-are-any-of-the-morphological-molecular-markers-useful-in-clinical-management
#4
REVIEW
Francesca Lunardi, Elisabetta Balestro, Nazarena Nannini, Stefania Edith Vuljan, Federico Rea, Fiorella Calabrese
Idiopathic pulmonary fibrosis (IPF), the most common form of chronic interstitial lung disease, is a severe progressive fibrotic disorder of unknown aetiology. The disease has a heterogeneous clinical course, with frequent poor prognosis, similar to malignant disease. Correctly diagnosing IPF has become particularly important in view of the availability of more precise therapeutic indications, thus avoiding steroid treatment and allowing new approaches with novel drugs. To date we have limited information about biomarkers predictive of progressive disease and associated complications...
December 2, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27909724/hsp27-regulates-tgf-%C3%AE-mediated-lung-fibroblast-differentiation-through-the-smad3-and-erk-pathways
#5
Gang Wang, Hao Jiao, Jun-Nian Zheng, Xia Sun
Idiopathic pulmonary fibrosis (IPF) is a chronic lethal interstitial lung disease with unknown etiology. Recent studies have indicated that heat-shock protein 27 (HSP27) contributes to the pathogenesis of IPF through the regulation of epithelial-mesenchymal transition (EMT). However, the expression and role of HSP27 in fibroblasts during pulmonary fibrogenesis has not been investigated to date, at least to the best of our knowledge. In this study, we examined the expression of HSP27 in fibrotic lung tissue and fibroblasts from bleomycin (BLM)-challenged mice and human lung fibroblasts treated with transforming growth factor-β (TGF-β)...
November 28, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27905295/desensitization-of-idiopathic-pulmonary-fibrosis-fibroblasts-to-alternaria-alternata-extract-mediated-necrotic-cell-death
#6
Jintaek Im, Kyutae Kim, Ji Young Yhee, Scott M O'Grady, Richard S Nho
Alternaria alternata is an allergenic fungus and known to cause an upper respiratory tract infection and asthma in humans with compromised immunity. Although A. alternata's effect on airway epithelial cells has previously been examined, the potential role of A. alternata on lung fibroblast viability is not understood. Since lung fibroblasts derived from patients with idiopathic pulmonary fibrosis (IPF) display a distinct phenotype that is resistant to stress and cell death inducing conditions, the investigation of the role of Alternaria on pathological IPF fibroblasts provides a better understanding of the fibrotic process induced by an allergenic fungus...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27899769/the-role-of-club-cell-phenoconversion-and-migration-in-idiopathic-pulmonary-fibrosis
#7
Jutaro Fukumoto, Ramani Soundararajan, Joseph Leung, Ruan Cox, Sanjay Mahendrasah, Neha Muthavarapu, Travis Herrin, Alexander Czachor, Lee C Tan, Nima Hosseinian, Priyanshi Patel, Jayanthraj Gone, Mason T Breitzig, Young Cho, Andrew J Cooke, Lakshmi Galam, Venkata Ramireddy Narala, Yashwant Pathak, Richard F Lockey, Narasaiah Kolliputi
Idiopathic pulmonary fibrosis (IPF) is an age-related multifactorial disease featuring non-uniform lung fibrosis. The decisive cellular events at early stages of IPF are poorly understood. While the involvement of club cells in IPF pathogenesis is unclear, their migration has been associated with lung fibrosis. In this study, we labeled club cells immunohistochemically in IPF lungs using a club cell marker Claudin-10 (Cldn10), a unique protein based on the recent report which demonstrated that the appearance of Cldn10 in developing and repairing lungs precedes other club cell markers including club cell secretory protein (CCSP)...
November 29, 2016: Aging
https://www.readbyqxmd.com/read/27890713/allogeneic-human-mesenchymal-stem-cells-in-patients-with-idiopathic-pulmonary-fibrosis-via-intravenous-delivery-aether-a-phase-i-safety-clinical-trial
#8
Marilyn K Glassberg, Julia Minkiewicz, Rebecca L Toonkel, Emmanuelle S Simonet, Gustavo A Rubio, Darcy Difede, Shirin Shafazand, Aisha Khan, Marietsy V Pujol, Vincent F LaRussa, Lisa H Lancaster, Glenn D Rosen, Joel Fishman, Yolanda N Mageto, Adam Mendizabal, Joshua M Hare
BACKGROUND: Despite recent FDA approval of two new drugs for idiopathic pulmonary fibrosis (IPF), curative therapies remain elusive and mortality remains high. Pre-clinical and clinical data support the safety of human mesenchymal stem cells as a potential novel therapy for this fatal condition. The AETHER trial was the first study designed to evaluate the safety of a single infusion of bone marrow-derived mesenchymal stem cells in patients with idiopathic pulmonary fibrosis. METHODS: Nine patients with mild to moderate IPF were sequentially assigned to one of three cohorts and dosed with a single intravenous infusion of 20, 100, or 200 x 10(6) human bone marrow-derived mesenchymal stem cells per infusion from young, unrelated, male donors...
November 24, 2016: Chest
https://www.readbyqxmd.com/read/27890502/ipf-in-2016-towards-a-better-diagnosis
#9
Paolo Spagnolo, Nicola Sverzellati, Giulio Rossi
No abstract text is available yet for this article.
December 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27889330/use-of-biologics-to-treat-acute-exacerbations-and-manage-disease-in-asthma-copd-and-ipf
#10
REVIEW
Lynne A Murray, Chris Grainge, Peter A Wark, Darryl A Knight
A common feature of chronic respiratory disease is the progressive decline in lung function. The decline can be indolent, or it can be accelerated by acute exacerbations, whereby the patient experiences a pronounced worsening of disease symptoms. Moreover, acute exacerbations may also be a marker of insufficient disease management. The underlying cause of an acute exacerbation can be due to insults such as pathogens or environmental pollutants, or the cause can be unknown. For each acute exacerbation, the patient may require medical intervention such as rescue medication, or in more severe cases, hospitalization and ventilation and have an increased risk of death...
November 24, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27886850/cellular-senescence-and-autophagy-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease-copd-and-idiopathic-pulmonary-fibrosis-ipf
#11
REVIEW
Kazuyoshi Kuwano, Jun Araya, Hiromichi Hara, Shunsuke Minagawa, Naoki Takasaka, Saburo Ito, Kenji Kobayashi, Katsutoshi Nakayama
Aging is associated with impairments in homeostasis. Although aging and senescence are not equivalent, the number of senescent cells increases with aging. Cellular senescence plays important roles in tissue repair or remodeling, as well as embryonic development. Autophagy is a process of lysosomal self-degradation that maintains a homeostatic balance between the synthesis, degradation, and recycling of cellular proteins. Autophagy diminishes with aging; additionally, accelerated aging can be attributed to reduced autophagy...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27881157/plasma-micrornas-are-associated-with-acute-exacerbation-in-idiopathic-pulmonary-fibrosis
#12
Haiyan Min, Shanshan Fan, Shiyu Song, Yi Zhuang, Hui Li, Yongzheng Wu, Hourong Cai, Long Yi, Jinghong Dai, Qian Gao
BACKGROUND: Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) has high short-term mortality with unknown causes. To predict this malignant condition in clinics is challenging. In this study, we aim to demonstrate whether there are miRNAs that differ between AE-IPF and stable IPF, which may be served as reliable biomarker for AE-IPF prediction. METHODS: Human fibrotic-associated miRNAs arrays were designed to detect miRNAs expression in plasma of 3 AE-IPF patients, 3 Stable-IPF (S-IPF) patients and 3 normal controls (NC)...
November 23, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27878273/pi3k-akt-signaling-is-involved-in-the-pathogenesis-of-bleomycin%C3%A2-induced-pulmonary-fibrosis-via-regulation-of-epithelial%C3%A2-mesenchymal-transition
#13
Xiao-Ling Zhang, Rong-Ge Xing, Liang Chen, Chun-Rong Liu, Zhi-Gang Miao
Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease characterized by chronic inflammation, fibroblast proliferation and extracellular matrix deposition. However, the molecular and cellular mechanisms underlying the pathogenesis of pulmonary fibrosis remain to be fully elucidated. The contribution of the phosphoinositide 3‑kinase (PI3K)/protein kinase B (Akt) pathway in fibrotic processes remains to be investigated. The aim of the present study was to investigate the role of the PI3K/Akt pathway in pulmonary fibrosis...
November 22, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27878256/melatonin-attenuates-tgf%C3%AE-1-induced-epithelial-mesenchymal-transition-in-lung-alveolar-epithelial-cells
#14
Na Yu, Yi-Tian Sun, Xin-Ming Su, Miao He, Bing Dai, Jian Kang
Idiopathic pulmonary fibrosis (IPF) is the most common interstitial lung disease. However, the pathogenesis remains to be fully elucidated. Melatonin is secreted by the pineal gland, it has a strong antioxidant effect, and exerts an anti-fibrosis effect. Whether melatonin attenuates pulm -onary fibrosis by inhibiting epithelial‑mesenchymal transition (EMT) requires further research. The present study aimed to investigate whether melatonin prevents transforming growth factor‑β1 (TGF‑β1)‑induced EMT and underlying signaling pathways using reverse transcription‑quantitative polymerase chain reaction, western blot analysis and immunofluorescence...
November 16, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27871724/the-palliative-care-needs-of-patients-with-idiopathic-pulmonary-fibrosis-a-qualitative-study-of-patients-and-family-caregivers
#15
Kathleen Oare Lindell, Dio Kavalieratos, Kevin F Gibson, Laura Tycon, Margaret Rosenzweig
OBJECTIVES: To explore the perceptions of palliative care (PC) needs in patients with idiopathic pulmonary fibrosis (IPF) and their caregivers. BACKGROUND: IPF carries a poor prognosis with most patients succumbing to their illness at a rate comparable to aggressive cancers. No prior studies have comprehensively explored perceptions of PC needs from those currently living with the disease, caring for someone living with the disease, and who cared for a deceased family member...
November 18, 2016: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/27871152/human-adipose-derived-mesenchymal-stem-cells-attenuate-early-stage-of-bleomycin-induced-pulmonary-fibrosis-comparison-with-pirfenidone
#16
Manoj Reddy, Lyle Fonseca, Shashank Gowda, Basavraj Chougule, Aarya Hari, Satish Totey
Background and Objectives: Idiopathic pulmonary fibrosis (IPF) is a progressive, irreversible, invariably fatal fibrotic lung disease with no lasting option for therapy. Mesenchymal stem cells (MSCs) could be a promising modality for the treatment of IPF. Aim of the study was to investigate improvement in survivability and anti-fibrotic efficacy of human adipose-derived mesenchymal stem cells (AD-MSCs) in comparison with pirfenidone in the bleomycin-induced pulmonary fibrosis model. Methods: Human AD-MSCs were administered intravenously on day 3, 6 and 9 after an intra-tracheal challenge with bleomycin, whereas, pirfenidone was given orally in drinking water at the rate of 100 mg/kg body weight three times a day daily from day 3 onward...
November 30, 2016: International Journal of Stem Cells
https://www.readbyqxmd.com/read/27869174/developmental-reprogramming-in-mesenchymal-stromal-cells-of-human-subjects-with-idiopathic-pulmonary-fibrosis
#17
Diptiman Chanda, Ashish Kurundkar, Sunad Rangarajan, Morgan Locy, Karen Bernard, Nirmal S Sharma, Naomi J Logsdon, Hui Liu, David K Crossman, Jeffrey C Horowitz, Stijn De Langhe, Victor J Thannickal
Cellular plasticity and de-differentiation are hallmarks of tissue/organ regenerative capacity in diverse species. Despite a more restricted capacity for regeneration, humans with age-related chronic diseases, such as cancer and fibrosis, show evidence of a recapitulation of developmental gene programs. We have previously identified a resident population of mesenchymal stromal cells (MSCs) in the terminal airways-alveoli by bronchoalveolar lavage (BAL) of human adult lungs. In this study, we characterized MSCs from BAL of patients with stable and progressive idiopathic pulmonary fibrosis (IPF), defined as <5% and ≥10% decline, respectively, in forced vital capacity over the preceding 6-month period...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27868303/fat-free-mass-index-predicts-survival-in-patients-with-idiopathic-pulmonary-fibrosis
#18
Osamu Nishiyama, Ryo Yamazaki, Hiroyuki Sano, Takashi Iwanaga, Yuji Higashimoto, Hiroaki Kume, Yuji Tohda
BACKGROUND AND OBJECTIVE: Detailed body composition, such as fat-free mass, has not been examined in idiopathic pulmonary fibrosis (IPF). We investigated whether the fat-free mass index (FFMI), an index of lean body mass, predicted survival. METHODS: Forty-four patients with IPF were enrolled in the study. Their body composition was assessed using direct segmental multi-frequency bioelectrical impedance analysis. The degree of correlation between variables of body composition and other variables such as forced vital capacity (FVC) and survival was examined...
November 21, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27867035/two-way-conversion-between-lipogenic-and-myogenic-fibroblastic-phenotypes-marks-the-progression-and-resolution-of-lung-fibrosis
#19
Elie El Agha, Alena Moiseenko, Vahid Kheirollahi, Stijn De Langhe, Slaven Crnkovic, Grazyna Kwapiszewska, Djuro Kosanovic, Felix Schwind, Ralph T Schermuly, Ingrid Henneke, BreAnne MacKenzie, Jennifer Quantius, Susanne Herold, Aglaia Ntokou, Katrin Ahlbrecht, Rory E Morty, Andreas Günther, Werner Seeger, Saverio Bellusci
Idiopathic pulmonary fibrosis (IPF) is a form of progressive interstitial lung disease with unknown etiology. Due to a lack of effective treatment, IPF is associated with a high mortality rate. The hallmark feature of this disease is the accumulation of activated myofibroblasts that excessively deposit extracellular matrix proteins, thus compromising lung architecture and function and hindering gas exchange. Here we investigated the origin of activated myofibroblasts and the molecular mechanisms governing fibrosis formation and resolution...
November 14, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27866277/identification-of-key-cost-generating-events-for-idiopathic-pulmonary-fibrosis-a-systematic-review
#20
REVIEW
Shalvaree Vaidya, Clare L Hibbert, Elizabeth Kinter, Stefan Boes
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is an incurable, debilitating disease which impairs lung function and eventually leads to death. Currently, there is a lack of effective modifying therapies and treatments for IPF as the underlying epidemiological mechanism is not clearly understood. This leads to difficulty in diagnosing and managing IPF, which results in a high incurment of disease-associated cost. Even though IPF poses a substantial economic burden, there is a lack of research available on cost triggers and healthcare utilization, which can be a barrier to future economic evaluations of new medicines for IPF...
November 19, 2016: Lung
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