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Chronic lung disease

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https://www.readbyqxmd.com/read/29471534/cypermethrin-promotes-lung-cancer-metastasis-via-modulation-of-macrophage-polarization-by-targeting-microrna-155-bcl6
#1
Fang Huang, Zhifeng Chen, Hanwen Chen, Wei Lu, Shujun Xie, Qing H Meng, Yihua Wu, Dajing Xia
Cypermethrin (CYM), a type II pyrethroid, is widely used as an insecticide for agriculture and household. Cumulative evidence indicates that acute and chronic exposure to CYM might cause a number of health problems, such as cancer and neuronal system diseases. However, the molecular mechanism underlying this pathology is not known. The main objective of our study was to define the effects of CYM on macrophages and the implication of such effects in cancer metastasis and the potential mechanism involved. The effects of CYM on the macrophages were evaluated by detecting the expression of M1 and M2 macrophage polarization markers through ELISA, quantitative RT-PCR and Western blot assay...
February 19, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29470706/reduced-proliferation-capacity-of-lung-cells-in-chronic-obstructive-pulmonary-disease
#2
Babett Bartling, Hans-Stefan Hofmann
BACKGROUND AND OBJECTIVES: The prevalence of chronic obstructive pulmonary disease (COPD) and lung emphysema increases with age and both lung diseases are again risk factors for lung cancer. Since a reduced capacity of fibroblasts for proliferation is a good indicator of tissue aging, we studied the cell proliferation of lung fibroblasts from normal and tumor tissue of lung cancer patients depending on lung comorbidities. MATERIAL AND METHODS: Fibroblasts were isolated from tumor and normal lung tissue of 40 lung cancer patients...
February 22, 2018: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/29470660/the-effect-of-inhalant-organic-dust-on-bone-health
#3
REVIEW
Joseph M Carrington, Jill A Poole
PURPOSE OF REVIEW: Agriculture remains a major economic sector globally, and workers experience high rates of chronic inflammatory lung and musculoskeletal diseases. Whereas obstructive pulmonary diseases are known risk factors for bone loss, the underlying relationship between lung inflammation and bone health is not well known. RECENT FINDINGS: An agriculture organic dust extract inhalation animal model has recently linked lung injury-induced inflammation to systemic bone loss...
February 22, 2018: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/29470529/xenopus-an-alternative-model-system-for-identifying-muco-active-agents
#4
Hyo Jung Sim, Sang-Hyun Kim, Kyung-Jae Myung, Taejoon Kwon, Hyun-Shik Lee, Tae Joo Park
The airway epithelium in human plays a central role as the first line of defense against environmental contaminants. Most respiratory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and respiratory infections, disturb normal muco-ciliary functions by stimulating the hypersecretion of mucus. Several muco-active agents have been used to treat hypersecretion symptoms in patients. Current muco-active reagents control mucus secretion by modulating either airway inflammation, cholinergic parasympathetic nerve activities or by reducing the viscosity by cleaving crosslinking in mucin and digesting DNAs in mucus...
2018: PloS One
https://www.readbyqxmd.com/read/29470421/phytochemicals-in-human-milk-and-their-potential-antioxidative-protection
#5
REVIEW
Apollinaire Tsopmo
Diets contain secondary plant metabolites commonly referred to as phytochemicals. Many of them are believed to impact human health through various mechanisms, including protection against oxidative stress and inflammation, and decreased risks of developing chronic diseases. For mothers and other people, phytochemical intake occurs through the consumption of foods such as fruits, vegetables, and grains. Research has shown that some these phytochemicals are present in the mother's milk and can contribute to its oxidative stability...
February 22, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29469965/vitamin-d-receptor-expression-in-dogs
#6
J A Cartwright, A G Gow, E Milne, D Drummond, S Smith, I Handel, R J Mellanby
BACKGROUND: There is growing evidence linking low blood vitamin D concentration to numerous diseases in people and in dogs. Vitamin D influences cellular function by signaling through the vitamin D receptor (VDR). Little is known about which non-skeletal tissues express the VDR or how inflammation influences its expression in the dog. OBJECTIVES: To define which non-skeletal canine tissues express the VDR and to investigate expression in inflamed small intestine...
February 22, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29469677/spirometric-criteria-for-chronic-obstructive-pulmonary-disease-in-clinical-trials-of-pharmacotherapy
#7
Carlos A Vaz Fragoso, Thomas M Gill, Linda S Leo-Summers, Peter H Van Ness
Clinical trials of pharmacotherapy in chronic obstructive pulmonary disease (COPD) often include older persons with moderate-to-severe airflow-obstruction, as defined by the Global Initiative for chronic Obstructive Lung Disease (GOLD). In this context, spirometric airflow-obstruction establishes COPD. Because GOLD misidentifies COPD and its severity in older persons, we set out to apply more age-appropriate spirometric criteria from the Global Lung function Initiative (GLI) in a prior clinical trial of COPD pharmacotherapy, specifically the Towards a Revolution in COPD Health (TORCH) trial - N = 6,112, mean age 65 years...
February 2018: COPD
https://www.readbyqxmd.com/read/29469675/lessons-from-the-past-some-histories-of-alpha-1-antitrypsin-deficiency-before-its-discovery
#8
A Perciaccante, P Charlier, C Negri, A Coralli, O Appenzeller, R Bianucci
A1AT deficiency- a genetically inherited autosomal codominant disease with more than 120 identified alleles- was first identified by Laurell and Eriksson in 1963. The most common hereditary disorder in adults, A1AT causes an increased risk of developing pulmonary emphysema and liver disease. In A1AT patients, lung disease generally presents at a younger age than "usual" chronic obstructive pulmonary disease (COPD) and it may be misdiagnosed as asthma. Because A1AT deficiency patients can show the same clinical features as non-deficient COPD (including increased evidence of bronchiectasis, frequent exacerbations, impaired health status and a degree of reversibility of airflow obstruction), the World Health Organization recommend to test every patient with a diagnosis of COPD or adult-onset asthma for A1AT deficiency...
February 2018: COPD
https://www.readbyqxmd.com/read/29469614/tgf-%C3%AE-1-induced-deposition-of-provisional-extracellular-matrix-by-tracheal-basal-cells-promotes-epithelial-to-mesenchymal-transition-in-a-jnk1-dependent-manner
#9
Jos L van der Velden, Darcy E Wagner, Karolyn G Lahue, Sarah T Abdalla, Ying W Lam, Daniel J Weiss, Yvonne M W Janssen-Heininger
Epithelial cells have been suggested as potential drivers of lung fibrosis, although the epithelial-dependent pathways that promote fibrogenesis remain unknown. Extracellular matrix is increasingly recognized as an environment that can drive cellular responses in various pulmonary diseases. In this study, we demonstrate that transforming growth factor- beta (TGF-β1)-stimulated mouse tracheal basal (MTB) cells produce provisional matrix proteins in vitro, which initiate mesenchymal changes in subsequently freshly plated MTB cells via Rho kinase- and c-Jun-N-terminal kinase (JNK1)-dependent processes...
February 22, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29468936/copd-as-an-endothelial-disorder-endothelial-injury-linking-lesions-in-the-lungs-and-other-organs-2017-grover-conference-series
#10
Francesca Polverino, Bartolome R Celli, Caroline A Owen
Chronic obstructive pulmonary disease (COPD) is characterized by chronic expiratory airflow obstruction that is not fully reversible. COPD patients develop varying degrees of emphysema, small and large airway disease, and various co-morbidities. It has not been clear whether these co-morbidities share common underlying pathogenic processes with the pulmonary lesions. Early research into the pathogenesis of COPD focused on the contributions of injury to the extracellular matrix and pulmonary epithelial cells...
January 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29467962/inflammatory-responses-and-inflammation-associated-diseases-in-organs
#11
REVIEW
Linlin Chen, Huidan Deng, Hengmin Cui, Jing Fang, Zhicai Zuo, Junliang Deng, Yinglun Li, Xun Wang, Ling Zhao
Inflammation is a biological response of the immune system that can be triggered by a variety of factors, including pathogens, damaged cells and toxic compounds. These factors may induce acute and/or chronic inflammatory responses in the heart, pancreas, liver, kidney, lung, brain, intestinal tract and reproductive system, potentially leading to tissue damage or disease. Both infectious and non-infectious agents and cell damage activate inflammatory cells and trigger inflammatory signaling pathways, most commonly the NF-κB, MAPK, and JAK-STAT pathways...
January 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29467669/establishment-and-evaluation-of-a-rat-model-of-sidestream-cigarette-smoke-induced-chronic-obstructive-pulmonary-disease
#12
Genfa Wang, Nabijan Mohammadtursun, Jing Sun, Yubao Lv, Hualiang Jin, Jinpei Lin, Lingwen Kong, Zhengxiao Zhao, Hongying Zhang, Jingcheng Dong
Chronic obstructive pulmonary disease (COPD) is a common cause of mortality worldwide. The current lack of an animal model that can be established within a certain time frame and imitate the unique features of the disease is a major limiting factor in its study. The present study established and evaluated an animal model of COPD that represents the early and advanced stage features using short-, middle-, and long-term sidestream cigarette smoke (CS) exposure. One hundred and nine Sprague-Dawley rats were randomly divided into 10 groups for different periods of sidestream CS exposure or no exposure (i...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29467455/lack-of-cystic-fibrosis-transmembrane-conductance-regulator-disrupts-fetal-airway-development-in-pigs
#13
David K Meyerholz, David A Stoltz, Nick D Gansemer, Sarah E Ernst, Daniel P Cook, Matthew D Strub, Erica N LeClair, Carrie K Barker, Ryan J Adam, Mariah R Leidinger, Katherine N Gibson-Corley, Philip H Karp, Michael J Welsh, Paul B McCray
Loss of cystic fibrosis transmembrane conductance regulator (CFTR) function causes cystic fibrosis (CF), predisposing the lungs to chronic infection and inflammation. In young infants with CF, structural airway defects are increasingly recognized before the onset of significant lung disease, which suggests a developmental origin and a possible role in lung disease pathogenesis. The role(s) of CFTR in lung development is unclear and developmental studies in humans with CF are not feasible. Young CF pigs have structural airway changes and develop spontaneous postnatal lung disease similar to humans; therefore, we studied lung development in the pig model (non-CF and CF)...
February 21, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29467200/effectiveness-versus-efficacy-trials-in-copd-how-study-design-influences-outcomes-and-applicability
#14
Ashley Woodcock, Isabelle Boucot, David A Leather, Jodie Crawford, Susan Collier, Nawar Diar Bakerly, Emma Hilton, Jørgen Vestbo
Guidelines for chronic obstructive pulmonary disease (COPD) management are based largely on results from double-blind randomised controlled trials (RCTs) of efficacy. These trials have high internal validity and test whether a drug is efficacious, but they are conducted in highly selected populations that may differ significantly from patients with COPD seen in routine practice.We compared the baseline characteristics, healthcare use and outcomes between the Salford Lung Study (SLS), an open-label effectiveness RCT, with six recent large-scale efficacy RCTs...
February 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29466814/-dgp-interstitial-lung-disease-patient-questionnaire
#15
M Kreuter, U Ochmann, D Koschel, J Behr, F Bonella, M Claussen, U Costabel, S Jungmann, M Kolb, D Nowak, F Petermann, M Pfeiffer, M Polke, A Prasse, J Schreiber, J Wälscher, H Wirtz, D Kirsten
BACKGROUND:  Interstitial lung diseases (ILD) encompass different heterogeneous, mainly chronic diseases of the pulmonary interstitium and/or alveoli with known and unknown reasons. The diagnostic of ILD is challenging and should be performed interdisciplinary. The medical history is of major importance and therefore, in German-speaking countries the Frankfurter Bogen (published in 1985) was utilised to scrutinise the medical history of the patient. This by now more than 30-years-old questionnaire requires a revision with regard to content and language...
February 21, 2018: Pneumologie
https://www.readbyqxmd.com/read/29466778/new-md2-inhibitors-derived-from-curcumin-with-improved-anti-inflammatory-activity
#16
Yali Zhang, Zhiguo Liu, Jianzhang Wu, Bin Bai, Hongjin Chen, Zhongxiang Xiao, Lingfeng Chen, Yunjie Zhao, Hazel Lum, Yi Wang, Hong Zhang, Guang Liang
An overactive Toll-like receptor (TLR) signaling complex is a significant pathogenic factor of acute and chronic inflammatory diseases. The natural product curcumin is reported to inhibit the TLR4 co-receptor, MD2 (myeloid differentiation protein 2), but its low in vivo bioavailability limits its therapeutic potential. We developed new curcumin analogs (MACs) with removal of the β-diketone moiety and substituted residues in benzene rings, and identify these as potential MD2 inhibitors with improved inhibition potency and stability over that of curcumin...
February 15, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29466167/-lung-hyperinflation-in-chronic-obstructive-pulmonary-disease-and-long-term-outcomes-of-percutaneous-coronary-intervention
#17
V K Zafiraki, E D Kosmachyeva, L V Shulzhenko, D M Ramazanov, A A Omarov, I V Pershukov
OBJECTIVE: to assess the effect of lung hyperinflation (LHI) in patients with chronic obstructive pulmonary disease (COPD) on longterm outcomes of percutaneous coronary intervention (PCI). MATERIALS AND METHODS: Patients with COPD who suffered stable ischemic heart disease and underwent PCI (n=135) were included in a prospective cohort study. LHI was found in 60 patients, while 75 patients had no LHI. Evaluation included comparing the frequency of major adverse cardiac events (MACE) (cardiac death, myocardial infarcпункtion [MI], stroke, repeat revascularization) and Kaplan-Mayer curves between groups of patients with and without LHI...
January 2018: Kardiologiia
https://www.readbyqxmd.com/read/29463286/bronchopulmonary-dysplasia-clinical-aspects-and-preventive-and-therapeutic-strategies
#18
REVIEW
Nicola Principi, Giada Maria Di Pietro, Susanna Esposito
BACKGROUND: Bronchopulmonary dysplasia (BPD) is the result of a complex process in which several prenatal and/or postnatal factors interfere with lower respiratory tract development, leading to a severe, lifelong disease. In this review, what is presently known regarding BPD pathogenesis, its impact on long-term pulmonary morbidity and mortality and the available preventive and therapeutic strategies are discussed. MAIN BODY: Bronchopulmonary dysplasia is associated with persistent lung impairment later in life, significantly impacting health services because subjects with BPD have, in most cases, frequent respiratory diseases and reductions in quality of life and life expectancy...
February 20, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29463285/network-modules-uncover-mechanisms-of-skeletal-muscle-dysfunction-in-copd-patients
#19
Ákos Tényi, Isaac Cano, Francesco Marabita, Narsis Kiani, Susana G Kalko, Esther Barreiro, Pedro de Atauri, Marta Cascante, David Gomez-Cabrero, Josep Roca
BACKGROUND: Chronic obstructive pulmonary disease (COPD) patients often show skeletal muscle dysfunction that has a prominent negative impact on prognosis. The study aims to further explore underlying mechanisms of skeletal muscle dysfunction as a characteristic systemic effect of COPD, potentially modifiable with preventive interventions (i.e. muscle training). The research analyzes network module associated pathways and evaluates the findings using independent measurements. METHODS: We characterized the transcriptionally active network modules of interacting proteins in the vastus lateralis of COPD patients (n = 15, FEV1 46 ± 12% pred, age 68 ± 7 years) and healthy sedentary controls (n = 12, age 65 ± 9 years), at rest and after an 8-week endurance training program...
February 20, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29463050/associations-between-ambient-particulate-matter-and-nitrogen-dioxide-and-chronic-obstructive-pulmonary-diseases-in-adults-and-effect-modification-by-demographic-and-lifestyle-factors
#20
Dirga Kumar Lamichhane, Jong Han Leem, Hwan Cheol Kim
This study was undertaken to investigate the associations between chronic exposure to particulate matter of medium aerodynamic diameter ≤10 or ≤2.5 µm (PM10 or PM2.5 ) and nitrogen dioxide (NO₂) levels and lung function and to examine a possible change in these relationships by demographic and lifestyle factors. Chronic obstructive pulmonary disease (COPD) was defined using the Global Initiative for COPD criteria (forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) of <70%). Associations of lung function and COPD with PM10 or PM2...
February 19, 2018: International Journal of Environmental Research and Public Health
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