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Obstructive lung disease

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https://www.readbyqxmd.com/read/28916790/association-between-homa-ir-and-lung-function-in-korean-young-adults-based-on-the-korea-national-health-and-nutrition-examination-survey
#1
Young Bok Lee, Young Soo Kim, Dong-Hee Lee, Hee Yeon Kim, Jae-Im Lee, Hyo-Suk Ahn, Tae Seo Sohn, Tae-Kyu Lee, Jae Yen Song, Chang Dong Yeo, Mihee Hong, Kyungdo Han, Seong Cheol Jeong, Hiun Suk Chae
Metabolic syndrome, including obesity and insulin resistance, has been reported to lower lung function in elderly subjects with asthma or chronic obstructive lung disease. This study aimed to find the association between lung function and insulin resistance in Korean young adults. This study used data from the Korean National Health and Nutrition Examination Survey 2011-2013, which is a representative sample of the Korean population. A total of 1,922 young adults aged 19 to 40 were included in the analysis...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915968/magnesium-to-counteract-elastin-degradation-and-vascular-calcification-in-chronic-obstructive-pulmonary-disease
#2
Rob Janssen
Accelerated elastin degradation is an important pathogenic mechanism in chronic obstructive pulmonary disease (COPD) leading to irreversible lung function loss and cardiovascular comorbidities. The rate of elastin breakdown is a predictor of mortality in patients with COPD. Decelerating elastinolysis might be an attractive therapeutic target in this debilitating condition. Vascular calcification starts in the elastin network of the arterial wall and is enhanced in patients with COPD. Elastin calcification is accompanied by an upregulation of matrix metalloproteinase gene expression and consequently a shift in the elastase/anti-elastase balance towards degradation...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28915625/long-term-cigarette-smoke-exposure-inhibits-histone-deacetylase-2-expression-and-enhances-the-nuclear-factor-%C3%AE%C2%BAb-activation-in-skeletal-muscle-of-mice
#3
Dongmei Huang, Zhiying Ma, Yili He, Ying Xiao, Honglin Luo, Qiuli Liang, Xiaoning Zhong, Jing Bai, Zhiyi He
Long-term cigarette smoke induces lung inflammatory injury and chronic obstructive pulmonary disease (COPD), associated with skeletal muscle inflammation. This study aimed at investigating how cigarette smoke promotes skeletal muscle inflammation and its molecular pathogenesis. Mice were exposed to air or cigarette smoke for 12 or 24 weeks, and C2C12 cells were stimulated with cigarette smoke extract (CSE). The mass and function, myotube formation, inflammatory cytokine production, histone deacetylase 2 (HDAC2) and nuclear factor-κB (NF-κB) p65 expression were detected in the gastrocnemius muscles of mice and C2C12 cells...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915526/-exit-a-possible-intervention-for-new-and-earlyborn-babies-with-severe-hydrops-fetalis-and-hydrothoraces-on-both-sides
#4
Sandra Koch, Jochen Essers, Ortraud Beringer, Frank Reister, Helmut Hummler, Anja Moewes
The EXIT (ex utero intrapartum treatment) procedure is an established method of respiratory protection, originally used in the delivery of fetuses with congenital obstructive airway diseases (tumors in the throat area, hygromas, so-called congenital high airway obstruction syndrome (CHAOS)). Meanwhile, the procedure is also carried out in large perinatal centers for pronounced diaphragmatic hernia or other special indications (EXIT to ECMO, congenital lung airway malformations (CCAM), pulmonary atresia). We present our experience with adapted EXIT procedures in 5 preterm infants with secondary generalized hydrops fetalis and pronounced bilateral hydrothoraces...
September 15, 2017: Zeitschrift Für Geburtshilfe und Neonatologie
https://www.readbyqxmd.com/read/28914826/pulmonary-alveolar-proteinosis-a-case-report
#5
Luis Alberto Concepción-Urteaga, Luis Alejandro Rodríguez-Hidalgo, Jorge Luis Cornejo-Portella, Oscar Neri Alquizar-Horna, Daniel Anderson Aguilar-Villanueva, Marcio José Concepción-Zavaleta, Mario Gustavo Azañero-Luján
INTRODUCTION: Pulmonary alveolar proteinosis is a rare, diffuse interstitial lung disease, characterized by alveolar obstruction due to the accumulation of pulmonary surfactant. CLINICAL PRESENTATION: A 30-year-old male with progressively worsening dyspnea and non-productive cough for one year. He was a sugar cane plantation worker and had prior recurrent respiratory infections. Physical exam revealed cyanosis, and bilateral coarse and fine rales. Chest computed tomography showed diffuse crazy paving pattern...
September 14, 2017: Medwave
https://www.readbyqxmd.com/read/28914424/new-perspectives-in-nanotherapeutics-for-chronic-respiratory-diseases
#6
Adriana Lopes da Silva, Fernanda Ferreira Cruz, Patricia Rieken Macedo Roccco, Marcelo Marcos Morales
According to the World Health Organization (WHO), hundreds of millions of people of all ages and in all countries suffer from chronic respiratory diseases, with particular negative consequences such as poor health-related quality of life, impaired work productivity, and limitations in the activities of daily living. Chronic obstructive pulmonary disease, asthma, occupational lung diseases (such as silicosis), cystic fibrosis, and pulmonary arterial hypertension are the most common of these diseases, and none of them are curable with current therapies...
September 15, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28913987/clinical-characteristics-of-exacerbation-prone-adult-asthmatics-identified-by-cluster-analysis
#7
Mi Ae Kim, Seung Woo Shin, Jong Sook Park, Soo Taek Uh, Hun Soo Chang, Da Jeong Bae, You Sook Cho, Hae Sim Park, Ho Joo Yoon, Byoung Whui Choi, Yong Hoon Kim, Choon Sik Park
PURPOSE: Asthma is a heterogeneous disease characterized by various types of airway inflammation and obstruction. Therefore, it is classified into several subphenotypes, such as early-onset atopic, obese non-eosinophilic, benign, and eosinophilic asthma, using cluster analysis. A number of asthmatics frequently experience exacerbation over a long-term follow-up period, but the exacerbation-prone subphenotype has rarely been evaluated by cluster analysis. This prompted us to identify clusters reflecting asthma exacerbation...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28911970/mesenchymal-stem-cells-alleviate-oxidative-stress-induced-mitochondrial-dysfunction-in-the-airways
#8
Xiang Li, Charalambos Michaeloudes, Yuelin Zhang, Coen H Wiegman, Ian M Adcock, Qizhou Lian, Judith C W Mak, Pankaj K Bhavsar, Kian Fan Chung
BACKGROUND: Oxidative stress-induced mitochondrial dysfunction may contribute to inflammation and remodeling in chronic obstructive pulmonary disease (COPD). Mesenchymal stem cells (MSCs) protect against lung damage in animal models of COPD. It is unknown whether these effects occur through attenuating mitochondrial dysfunction in airway cells. OBJECTIVE: To examine the effect of induced-pluripotent stem cell-derived MSCs (iPSC-MSCs) on oxidative stress-induce mitochondrial dysfunction in human airway smooth muscle cells (ASMCs) in vitro and in mouse lungs in vivo...
September 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28910509/the-experience-of-palliative-care-service-provision-for-people-with-non-malignant-respiratory-disease-and-their-family-carers-an-all-ireland-qualitative-study
#9
Clare Mc Veigh, Joanne Reid, Philip Larkin, Sam Porter, Peter Hudson
AIM: To explore specialist and generalist palliative care provision for people with non-malignant respiratory disease, in rural and urban areas in the North and Republic of Ireland. BACKGROUND: Globally, palliative care is recommended as an appropriate healthcare option for people with advanced non- malignant lung disease. Yet, there is limited evidence regarding the integration of palliative care for this client group. DESIGN: Qualitative study...
September 14, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28906034/small-airway-disease-a-different-phenotype-of-early-stage-copd-associated-with-biomass-smoke-exposure
#10
Dongxing Zhao, Yumin Zhou, Changbin Jiang, Zhuxiang Zhao, Fang He, Pixin Ran
BACKGROUND AND OBJECTIVE: Chronic exposure to biomass smoke (BS) can significantly compromise pulmonary function and lead to chronic obstructive pulmonary disease (COPD). To determine whether BS exposure induces a unique phenotype of COPD from an early stage, with different physiopathological features compared with COPD associated with smoking (cigarette-smoke (CS) COPD), we assessed the physiopathology of early COPD associated with BS exposure (BS COPD) by incorporating spirometry, high-resolution computed tomography (HRCT) imaging, bronchoscopy and pathological examinations...
September 14, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28905537/the-relationship-between-airway-inflammation-and-exacerbation-in-chronic-obstructive-pulmonary-disease
#11
REVIEW
Diahn Warng Perng, Pei Ku Chen
Chronic obstructive pulmonary disease (COPD) is associated with abnormal inflammatory response and airflow limitation. Acute exacerbation involves increased inflammatory burden leading to worsening respiratory symptoms, including dyspnea and sputum production. Some COPD patients have frequent exacerbations (two or more exacerbations per year). A substantial proportion of COPD patients may remain stable without exacerbation. Bacterial and viral infections are the most common causative factors that breach airway stability and lead to exacerbation...
September 4, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905534/larger-testicular-volume-is-independently-associated-with-favorable-indices-of-lung-function
#12
Tae Beom Kim, I Nae Park
BACKGROUND: Men with chronic obstructive pulmonary disease, have reduced endogenous testosterone levels, but the relationship between pulmonary function and endogenous testosterone levels, is inconsistent. Testicular volume is a known indicator of endogenous testosterone levels, male fertility, and male potency. In the present study, the authors investigated the relationship, between testicular volume and lung function. METHODS: One hundred and eighty-one South Korean men age 40-70, hospitalized for urological surgery, were retrospectively enrolled, irrespective of the presence of respiratory disease...
September 1, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905464/urinary-desmosine-is-associated-with-emphysema-severity-and-frequent-exacerbation-in-patients-with-copd
#13
Changhwan Kim, Yousang Ko, Su Hee Kim, Hyun Ju Yoo, Jae Seung Lee, Chin Kook Rhee, Jin Hwa Lee, Ji-Hyun Lee, Tae-Hyung Kim, Seong Yong Lim, Kwang Ha Yoo, Joon Beom Seo, Yeon-Mok Oh, Sang-Do Lee, Yong Bum Park
BACKGROUND AND OBJECTIVE: Matrix degradation is a key feature of chronic obstructive pulmonary disease (COPD). Desmosine and isodesmosine (desmosines) are excreted in urine following matrix degradation. The main purpose of this study was to investigate the association between computed tomography (CT) emphysema indices and urinary desmosines in patients with COPD. METHODS: A total of 152 subjects were selected from the Korean Obstructive Lung Disease cohort. Their urine samples were assayed for desmosines using liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods...
September 14, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28904224/targeted-inhibition-of-gq-signaling-induces-airway-relaxation-in-mouse-models-of-asthma
#14
Michaela Matthey, Richard Roberts, Alexander Seidinger, Annika Simon, Ralf Schröder, Markus Kuschak, Suvi Annala, Gabriele M König, Christa E Müller, Ian P Hall, Evi Kostenis, Bernd K Fleischmann, Daniela Wenzel
Obstructive lung diseases are common causes of disability and death worldwide. A hallmark feature is aberrant activation of Gq protein-dependent signaling cascades. Currently, drugs targeting single G protein (heterotrimeric guanine nucleotide-binding protein)-coupled receptors (GPCRs) are used to reduce airway tone. However, therapeutic efficacy is often limited, because various GPCRs contribute to bronchoconstriction, and chronic exposure to receptor-activating medications results in desensitization. We therefore hypothesized that pharmacological Gq inhibition could serve as a central mechanism to achieve efficient therapeutic bronchorelaxation...
September 13, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28903761/protective-effects-of-grape-seed-and-skin-extract-against-high-fat-diet-induced-lipotoxicity-in-rat-lung
#15
Mohamed El Ayed, Safwen Kadri, Selima Smine, Salem Elkahoui, Ferid Limam, Ezzedine Aouani
BACKGROUND: Obesity is a public health problem characterized by increased fat accumulation in different tissues. Obesity is directly linked to breathing problems and medical complications with lung, including obstructive sleep apnea syndrome, obesity hypoventilation syndrome, chronic obstructive pulmonary disease, asthma….In the present work, we aimed to investigate the effect of high fat diet (HFD) on lung lipotoxicity, oxidative stress, fatty acid composition and proportions in lung and implication in asthma development...
September 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28902960/the-prognostic-significance-of-lung-function-in-stable-heart-failure-outpatients
#16
Louis Lind Plesner, Morten Dalsgaard, Morten Schou, Lars Køber, Jørgen Vestbo, Erik Kjøller, Kasper Iversen
BACKGROUND: This study investigated the impact on all-cause mortality of airflow limitation indicative of chronic obstructive pulmonary disease or restrictive spirometry pattern (RSP) in a stable systolic heart failure population. HYPOTHESIS: Decreased lung function indicates poor survival in heart failure. METHODS: Inclusion criteria: NYHA class II-IV and left ventricular ejection fraction (LVEF) < 45%. Prognosis was assessed with multivariate Cox proportional hazards models...
September 13, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28902919/factors-associated-with-pulmonary-impairment-in-hiv-infected-south-african-adults
#17
Akshay N Gupte, Michelle L Wong, Reginah Msandiwa, Grace L Barnes, Jonathan Golub, Richard E Chaisson, Christopher J Hoffmann, Neil A Martinson
BACKGROUND: HIV-infected individuals have increased risk of developing obstructive lung disease (OLD). Studies from developed countries report high viral load, low CD4 counts, and anti-retroviral therapy (ART) to be associated with OLD; but these findings may not be generalizable to populations in resource-limited settings. METHODS: We conducted a prospective cohort study of lung function in 730 HIV-infected black South African adults. Pre-bronchodilator spirometry was performed at enrollment and repeated annually for three years...
2017: PloS One
https://www.readbyqxmd.com/read/28902888/dendrimer-based-selective-autophagy-induction-rescues-%C3%AE-f508-cftr-and-inhibits-pseudomonas-aeruginosa-infection-in-cystic-fibrosis
#18
Scott Mackenzie Brockman, Manish Bodas, David Silverberg, Ajit Sharma, Neeraj Vij
BACKGROUND: Cystic Fibrosis (CF) is a genetic disorder caused by mutation(s) in the CF-transmembrane conductance regulator (Cftr) gene. The most common mutation, ΔF508, leads to accumulation of defective-CFTR protein in aggresome-bodies. Additionally, Pseudomonas aeruginosa (Pa), a common CF pathogen, exacerbates obstructive CF lung pathology. In the present study, we aimed to develop and test a novel strategy to improve the bioavailability and potentially achieve targeted drug delivery of cysteamine, a potent autophagy-inducing drug with anti-bacterial properties, by developing a dendrimer (PAMAM-DEN)-based cysteamine analogue...
2017: PloS One
https://www.readbyqxmd.com/read/28901394/overexpression-of-atp5b-promotes-cell-proliferation-in-asthma
#19
Jianhong Zuo, Mingsheng Lei, Meilin Wen, Yikun Chen, Zhigang Liu
Asthma is a complicated systemic disease of the airways, which is characterized by variable symptoms, including bronchial hyper‑responsive-ness, inflammation and airflow obstruction. The prevalence of asthma has increased 2‑3‑fold over recent decades in developed countries; however, the molecular mechanism of asthma remains unclear. In the current study, the expression of recombinant protein Dermatophagoides farinaeI (Derf I) was induced by isopropyl β‑D‑1‑thiogalactoside (IPTG) and purified using Ni‑NTA...
August 31, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900078/-polymorphic-variants-of-glutamate-receptor-grik5-grin2b-and-serotonin-receptor-htr2a-genes-are-associated-with-chronic-obstructive-pulmonary-disease
#20
G F Korytina, L Z Akhmadishina, O V Kochetova, Y G Aznabaeva, Sh Z Zagidullin, T V Victorova
Chronic obstructive pulmonary disease (COPD) is a complex chronic inflammatory disease of the respiratory system that affects primarily distal respiratory pathways and lung parenchyma. Smoking tobacco is a major risk factor for COPD. The relationship of HTR4 (rs3995090), HTR2A (rs6313), GRIK5 (rs8099939), GRIN2B (rs2268132), and CHRNB4 (rs1948) gene polymorphisms and COPD, as well as the contribution of these polymorphisms to the variations in quantitative characteristics that describe respiratory function, smoking behavior, and nicotine dependence was assessed in an ethnically homogeneous Tatar population...
July 2017: Molekuliarnaia Biologiia
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