keyword
MENU ▼
Read by QxMD icon Read
search

lung remodeling

keyword
https://www.readbyqxmd.com/read/29792201/cerium-dioxide-nanoparticles-exacerbate-house-dust-mite-induced-type-ii-airway-inflammation
#1
Kirsty Meldrum, Sarah B Robertson, Isabella Römer, Tim Marczylo, Lareb S N Dean, Andrew Rogers, Timothy W Gant, Rachel Smith, Terry D Tetley, Martin O Leonard
BACKGROUND: Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2 NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2 NPs in a house dust mite (HDM) induced murine model of asthma. RESULTS: Repeated intranasal instillation of CeO2 NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia...
May 23, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29791759/ctnnal1-inhibits-ozone-induced-epithelial-mesenchymal-transition-in-human-bronchial-epithelial-cells
#2
Meiling Tan, Caixia Liu, Wenjie Huang, Linhong Deng, Xiaoqun Qin, Yang Xiang
NEW FINDINGS: What is the central question of this study? In our previous work, CTNNAL1 (catenin alpha-like 1), an asthma-related epithelial adhesion molecule, was found to play a vital role in airway epithelial wound repair. The effect of CTNNAL1 on airway EMT has not been previously explored. What is the main finding and its importance? CTNNAL1 inhibits ozone-induced airway EMT features and mediated by repressing the expression of Twist1 mRNA and reducing TGF-β1 levels. These findings contribute to our understanding of the pathology of airway EMT and may indicate a possible therapeutic target for airway remodelling in bronchial asthma...
May 23, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29789753/hydrogen-protects-lung-from-hypoxia-re-oxygenation-injury-by-reducing-hydroxyl-radical-production-and-inhibiting-inflammatory-responses
#3
Meihong Chen, Jie Zhang, Yun Chen, Yan Qiu, Zi Luo, Sixia Zhao, Lei Du, Dongbo Tian
Here we investigated whether hydrogen can protect the lung from chronic injury induced by hypoxia/re-oxygenation (H/R). We developed a mouse model in which H/R exposure triggered clinically typical lung injury, involving increased alveolar wall thickening, infiltration by neutrophils, consolidation, alveolar hemorrhage, increased levels of inflammatory factors and recruitment of M1 macrophages. All these processes were attenuated in the presence of H2 . We found that H/R-induced injury in our mouse model was associated with production of hydroxyl radicals as well as increased levels of colony-stimulating factors and circulating leukocytes...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29789684/dipeptidyl-peptidase-iv-dpp-4-inhibition-alleviates-pulmonary-arterial-remodeling-in-experimental-pulmonary-hypertension
#4
Jian Xu, Jingjing Wang, Mengyu He, Honghao Han, Weiping Xie, Hong Wang, Hui Kong
Dipeptidyl peptidase IV (DPP-4) is well known for its role in glucose homeostasis, and DPP-4 inhibitor (DPP-4i) exhibits multiple actions in cardiovascular diseases. However, the effect of DPP-4i on pulmonary hypertension (PH) remains unclear. Therefore, this study aims to investigate the effect of DPP-4i on pulmonary arterial remodeling in rats with PH and the potential underlying mechanisms. Our results show that DPP-4 was expressed in epithelial cells, endothelial cells, smooth muscle cells, and inflammatory cells in lung...
May 22, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29788800/relationship-between-ykl-40-and-pulmonary-arterial-hypertension-in-systemic-sclerosis
#5
Tetsuya Furukawa, Kiyoshi Matsui, Masayasu Kitano, Yuichi Yokoyama, Masahiro Sekiguchi, Naoto Azuma, Yasutomo Imai, Seiichi Hirota, Kiyofumi Yamanishi, Hajime Sano
OBJECTIVES: Systemic sclerosis (SSc) is an intractable connective tissue disease that causes skin and organ fibrosis. Interstitial lung disease (ILD) and pulmonary arterial hypertension (PAH) affect its prognosis. YKL-40 protein impacts inflammation and tissue remodeling. Therefore, we evaluated the utility of YKL-40 blood levels in identifying patients with SSc complicated by PAH, as confirmed by immunohistochemistry (IHC) examination. METHODS: We retrospectively analyzed 78 patients with SSc and performed IHC on 7 normal and 7 SSc skin samples in the Japanese population...
May 23, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29783987/an-updated-review-of-the-genotoxicity-of-respirable-crystalline-silica
#6
REVIEW
Paul J A Borm, Paul Fowler, David Kirkland
Human exposure to (certain forms of) crystalline silica (CS) potentially results in adverse effects on human health. Since 1997 IARC has classified CS as a Group 1 carcinogen [1], which was confirmed in a later review in 2012 [2]. The genotoxic potential and mode of genotoxic action of CS was not conclusive in either of the IARC reviews, although a proposal for mode of actions was made in an extensive review of the genotoxicity of CS by Borm, Tran and Donaldson in 2011 [3]. The present study identified 141 new papers from search strings related to genotoxicity of respirable CS (RCS) since 2011 and, of these, 17 relevant publications with genotoxicity data were included in this detailed review...
May 21, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29777877/multi-walled-carbon-nanotubeinduced-inhalation-toxicity-recognizing-nano-bis-demethoxy-curcumin-analog-as-an-ameliorating-candidate
#7
Arul Prakash Francis, Thiyagarajan Devasena, Selvam Ganapathy, Venkata Rajsekhar Palla, Prakhya Balakrishna Murthy, Sundara Ramaprabhu
Human beings and ecosystems are being possibly exposed to CNTs, as there is a rise in global production rate of carbon nanotubes (CNTs). This may affect the health of humans and increases the environmental risk. We have already reported the pulmonary toxicity due to the inhalation of MWCNTs. We claim that a compound with anti-inflammatory and antioxidant activity may ameliorate the CNT-induced toxic effect. With this view, we have investigated the ameliorative effect of intravenously-administered nano bis-demethoxy curcumin analog (NBDMCA) against MWCNTs-induced inhalation toxicity by examining the lung histopathology for inflammatory cell dynamics, pulmonary remodeling and estimating the inflammatory biomarkers in the broncho-alveolar lavage fluid...
May 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29775222/abca1-inhibits-pdgf-induced-proliferation-and-migration-of-rat-airway-smooth-muscle-cell-through-blocking-tlr2-nf-%C3%AE%C2%BAb-nfatc1-signaling
#8
Wei Cheng, Kun Yan, Yanni Chen, Wen Zhang, Zongzheng Ji, Chengxue Dang
Airway remodeling is a key feature of asthma, characterized by abnormal proliferation and migration of airway smooth muscle cells (ASMCs). ABCA1, a member of the ATP-binding cassette family of active transporters, plays an essential role in the progression of lung diseases. However, the contributions of ABCA1 in ASMCs remain to be explored. The purpose of the present study was to investigate the functional role and potential molecular mechanism of ABCA1 in platelet derived growth factor (PDGF)-induced primary rat ASMC proliferation and migration...
May 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29765214/tiotropium-inhibits-methacholine-induced-extracellular-matrix-production-via-%C3%AE-catenin-signaling-in-human-airway-smooth-muscle-cells
#9
Yating Huo, Lili Guan, Jiawen Xu, Luqian Zhou, Rongchang Chen
Background: Airway remodeling is an important feature of chronic obstructive pulmonary disease (COPD) that is associated with disease severity and irreversible airflow limitation. An extensive alteration of the extracellular matrix (ECM) surrounding the airway smooth muscle (ASM) bundle is one of the pathological manifestations of airway remodeling, which contributes to the decline in lung function. Tiotropium, a long-acting inhaled muscarinic receptor antagonist, has been confirmed to play a role in preventing airway remodeling including ECM deposition beyond bronchodilation in vivo, but the relationship between ASM cell (ASMC) relaxation and ECM production remains unclear...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29757677/microrna-dysregulation-in-pulmonary-arteries-from-copd-relationships-with-vascular-remodeling
#10
Melina M Musri, Núria Coll-Bonfill, Bradley A Maron, Víctor I Peinado, Ruisheng Wang, Jordi Altirriba, Isabel Blanco, William M Oldham, Olga Tura-Ceide, Jessica García-Lucio, Benjamin de la Cruz-Thea, Gunter Meister, Joseph Loscalzo, Joan A Barberà
BACKGROUND: Pulmonary vascular remodeling is an angiogenic-related process involving changes in smooth muscle cell (SMC) homeostasis, which is frequently observed in chronic obstructive pulmonary disease (COPD). MicroRNAs (miRNAs) are small non-coding RNAs that regulate mRNA expression levels of many genes leading to the manifestation of cell identity and specific cellular phenotypes. Here we evaluate the miRNA expression profiles of pulmonary arteries (PA) of patients with COPD and its relationship with the regulation of SMC phenotypic change...
May 14, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29751831/intravenous-injection-of-allogeneic-umbilical-cord-derived-multipotent-mesenchymal-stromal-cells-reduces-the-infarct-area-and-ameliorates-cardiac-function-in-a-porcine-model-of-acute-myocardial-infarction
#11
Meikuang Lim, Weiqiang Wang, Lu Liang, Zhi-Bo Han, Zongjin Li, Jie Geng, Meng Zhao, Honghong Jia, Jie Feng, Zhe Wei, Baoquan Song, Jiemin Zhang, Jun Li, Tianwen Liu, Fan Wang, Ting Li, Jianming Li, Yihu Fang, Jianhua Gao, Zhongchao Han
BACKGROUND: Multipotent mesenchymal stromal cell (MSC) therapy has been widely recognized as a feasible strategy for regenerating injured myocardial tissue. However, little is known about the efficacy of intravenous injection of allogeneic umbilical cord (UC) MSCs in preclinical models of porcine myocardial infarction. METHODS: Different dosages of allogeneic UC-MSCs or the vehicle [phosphate-buffered saline (PBS)] were delivered intravenously into an acute myocardial infarction (AMI) porcine model twice after coronary ligation...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29750421/genome-wide-analysis-of-lncrnas-in-3-untranslated-regions-cr933609-acts-as-a-decoy-to-protect-the-ino80d-gene
#12
Chun-Chi Chang, Ting-Yuan Liu, Ya-Ting Lee, Yu-Chia Chen, Kun-Tu Yeh, Chien-Chin Lee, Ya-Ling Chen, Pei-Chin Lin, Ya-Sian Chang, Wen-Ling Chan, Ta-Chih Liu, Jan-Gowth Chang
Long non‑coding RNAs (lncRNAs) have various functions, including chromatin remodeling and the regulation of gene expression at the transcriptional and post-transcriptional levels. However, few lncRNAs have been investigated comprehensively, with the majority being uncharacterized. In the present study, a bioinformatics pipeline was established to identify novel lncRNA sequences similar to the 3'-untranslated regions (3'‑UTRs) of protein-coding genes. These pairs of lncRNAs and coding genes contained the same microRNA (miRNA) target sites; the lncRNA CR933609 matched the 3'‑UTR of INO80 complex subunit D (INO80D) mRNA...
May 8, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29747005/is-the-adenosine-a-2b-biased-receptor-a-valuable-target-for-the-treatment-of-pulmonary-arterial-hypertension
#13
REVIEW
Mafalda Bessa-Gonçalves, Bruno Bragança, Eduardo Martins-Dias, Paulo Correia-de-Sá, Ana Patrícia Fontes-Sousa
Pulmonary arterial hypertension (PAH) is a maladaptive disorder characterized by increased pulmonary vascular resistance leading to right ventricular failure and death. Adenosine released by injured tissues, such as the lung and heart, influences tissue remodeling through the activation of adenosine receptors. Evidence regarding activation of the low-affinity A2B AR by adenosine points towards pivotal roles of this receptor in processes associated with both acute and chronic lung diseases. Conflicting results exist concerning the beneficial or detrimental roles of the A2B 'biased' receptor in right ventricular failure secondary to PAH...
May 7, 2018: Drug Discovery Today
https://www.readbyqxmd.com/read/29746939/identification-of-a-plasma-microrna-profile-in-untreated-pulmonary-tuberculosis-patients-that-is-modulated-by-anti-mycobacterial-therapy
#14
Barry Simone E, Ellis Magda, Yang YuRong, Guan Guangyu, Wang Xiaolin, Britton Warwick J, Saunders Bernadette M
OBJECTIVE: microRNA expression profiles are of interest as a biomarker of tuberculosis (TB). How anti-TB therapy effects miRNA profiles is unknown and was examined. METHODS: We identified 87 plasma miRNAs that were significantly modified in an exploratory group of 19 Chinese pulmonary TB (PTB) patients compared to 14 healthy controls. We selected 10 of these miRNAs for analysis in a cohort of 100 PTB patients prior to, and at one, two and six months during treatment...
May 7, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29745796/mechanical-properties-of-the-airway-tree-heterogeneous-and-anisotropic-pseudoelastic-and-viscoelastic-tissue-responses
#15
Mona Eskandari, Alberto Leyva Arvayo, Marc Elliot Levenston
Airway obstruction and pulmonary mechanics remain understudied despite lung disease being the third cause of death in the United States. Lack of relevant data has lead computational pulmonary models to infer mechanical properties from available material data for the trachea. Additionally, the time-dependent, viscoelastic behaviors of airways have been largely overlooked, despite the potential physiologic relevance and utility as metrics of tissue remodeling and disease progression. Here we address the clear need for airway-specific material characterization to inform biophysical studies of the bronchial tree...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29737212/baicalein-ameliorates-pulmonary-arterial-hypertension-caused-by-monocrotaline-through-downregulation-of-et-1-and-et-a-r-in-pneumonectomized-rats
#16
Wen-Lin Hsu, Yu-Chieh Lin, Jing-Ren Jeng, Heng-Yuan Chang, Tz-Chong Chou
Baicalein (BE) extracted from Scutellaria baicalensis Georgi is able to alleviate various cardiovascular and inflammatory diseases. However, the effects of BE on pulmonary arterial hypertension (PAH) remain unknown. Therefore, the present study aimed to examine whether BE ameliorates pneumonectomy and monocrotaline-induced PAH in rats and further investigate the underlying molecular mechanisms. Administration of BE greatly attenuated the development of PAH as evidenced by an improvement of its characteristic features, including elevation of right ventricular systolic pressure, right ventricular hypertrophy, and pulmonary vascular remodeling...
May 8, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29733812/hypoxia-induced-autophagy-activation-through-nf-%C3%AE%C2%BAb-pathway-regulates-cell-proliferation-and-migration-to-induce-pulmonary-vascular-remodeling
#17
Xiaogang Jing, Tianci Jiang, Lingling Dai, Xi Wang, Liuqun Jia, Huan Wang, Lin An, Meng Liu, Rui Zhang, Zhe Cheng
OBJECTIVES: This study aimed to investigate whether autophagy mediated cell proliferation and migration of pulmonary arterial smooth muscle cells (PASMCs) under hypoxia and to validate the underlying mechanism. METHODS: The rat model of chronic hypoxia-induced pulmonary vascular remodeling was established. Rat primary PASMCs were isolated and cultured in vitro in hypoxia or normoxia to explore the underlying mechanism. RESULTS: Hypoxia exposure for 21 days induced pulmonary vascular remodeling in rats, accompanied by enhanced proliferation and decreased apoptosis, as well as induced expression of autophagic marker LC3II in their lungs...
May 4, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29731719/rhace2-therapy-modifies-bleomycin-induced-pulmonary-hypertension-via-rescue-of-vascular-remodeling
#18
Anandharajan Rathinasabapathy, Andrew J Bryant, Toshio Suzuki, Christy Moore, Sheila Shay, Santhi Gladson, James D West, Erica J Carrier
Background: Pulmonary hypertension (PH) is a progressive cardiovascular disease, characterized by endothelial and smooth muscle dysfunction and vascular remodeling, followed by right heart failure. Group III PH develops secondarily to chronic lung disease such as idiopathic pulmonary fibrosis (IPF), and both hastens and predicts mortality despite of all known pharmacological interventions. Thus, there is urgent need for development of newer treatment strategies. Objective: Angiotensin converting enzyme 2 (ACE2), a member of the renin angiotensin family, is therapeutically beneficial in animal models of pulmonary vascular diseases and is currently in human clinical trials for primary PH...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29729496/progressive-increase-in-allergen-concentration-abrogates-immune-tolerance-in-ovalbumin-induced-murine-model-of-chronic-asthma
#19
Gurupreet S Sethi, Amarjit S Naura
Persistent inflammation and remodeling of airways are the major hallmarks of asthma. Though airway inflammation diminishes in ovalbumin (OVA)-based mouse model of chronic asthma owing to immune-tolerance linked with repeated allergen exposure, which limits the application of the disease model. Accordingly, the present study was designed to develop a murine model of chronic asthma which presents persistent airway inflammation coupled with remodeling traits. Herein, OVA-sensitized BALB/c mice were challenged with increasing (modified protocol) or constant concentration (conventional protocol) of the allergen for 6 weeks; 3 times/week...
May 2, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29729200/reduction-in-polyamine-catabolism-leads-to-spermine-mediated-airway-epithelial-injury-and-induces-asthma-features
#20
Vaibhav Jain, Shikha Raina, Atish Prabhakar Gheware, Rita Singh, Rakhshinda Rehman, Vinny Negi, Tracy Murray Stewart, Ulaganathan Mabalirajan, Adarsh Kumar Mishra, Robert A Casero, Anurag Agrawal, Balaram Ghosh
BACKGROUND: Airway epithelial injury is a crucial component of acute and severe asthma pathogenesis and a promising target for treatment of refractory asthma. However, the underlying mechanism of epithelial injury remains poorly explored. Though high levels of polyamines, mainly spermine, have been found in asthma and co-morbidity, their role in airway epithelial injury and the cause of their altered levels in asthma has not been explored. METHODS: We measured key polyamine metabolic enzymes in lung samples from normal and asthmatic subjects and in mice with OVA-induced allergic airway inflammation (AAI)...
May 5, 2018: Allergy
keyword
keyword
54232
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"