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https://www.readbyqxmd.com/read/28732839/exacerbations-and-duration-of-smoking-abstinence-are-associated-with-the-annual-loss-of-fev1-in-individuals-with-pizz-alpha-1-antitrypsin-deficiency
#1
Sebastian Fähndrich, Nikolas Bernhard, Philipp M Lepper, Claus Vogelmeier, Martina Seibert, Stefan Wagenpfeil, Robert Bals
BACKGROUND: Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder that is associated with a higher risk of chronic obstructive pulmonary disease (COPD) and emphysema. The annual declines in lung function (FEV1) and transfer factor of the lung for carbon monoxide (TLCO) predict all-cause mortality. MATERIAL AND METHODS: We investigated the longitudinal follow-up data over 11 years (mean follow-up period of 4.89 years) from the German AATD registry and analyzed the relationship between annual loss of FEV1 and TLCO and sex, age, body mass index (BMI), nicotine consumption, occupational dust exposure, St...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28724417/examining-the-role-of-unmeasured-confounding-in-mediation-analysis-with-genetic-and-genomic-applications
#2
Sharon M Lutz, Annie Thwing, Sarah Schmiege, Miranda Kroehl, Christopher D Baker, Anne P Starling, John E Hokanson, Debashis Ghosh
BACKGROUND: In mediation analysis if unmeasured confounding is present, the estimates for the direct and mediated effects may be over or under estimated. Most methods for the sensitivity analysis of unmeasured confounding in mediation have focused on the mediator-outcome relationship. RESULTS: The Umediation R package enables the user to simulate unmeasured confounding of the exposure-mediator, exposure-outcome, and mediator-outcome relationships in order to see how the results of the mediation analysis would change in the presence of unmeasured confounding...
July 19, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28713086/intensifying-approach-to-the-therapy-of-patients-with-constellation-of-the-diseases-chronic-obstructive-pulmonary-disease-and-osteoarthritis
#3
Vyacheslav N Zhdan, Maksim М Potyazhenko, Galina S Khaymenova, Nadezhda N Lyulka, Tatyana V Dubrovinskaya, Igor V Ivanitsky
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is one of 21st century. About 210 million people all over the world are suffering with COPD, and annually 3 million people die of it. Under the influence of different factors, such as smoking, air prolusion, evaporation of chemicals, poisoning effect of chemical firings, inflammation processes take place in lungs, and if it is prolonged and take place simultaneously with morphological changes in the lungs, it it provide the de4velopment of the systemic inflammation process...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28704396/phenotypic-chemical-and-functional-characterization-of-cyclic-nucleotide-phosphodiesterase-4-pde4-as-a-potential-anthelmintic-drug-target
#4
Thavy Long, Liliana Rojo-Arreola, Da Shi, Nelly El-Sakkary, Kurt Jarnagin, Fernando Rock, Maliwan Meewan, Alberto A Rascón, Lin Lin, Katherine A Cunningham, George A Lemieux, Larissa Podust, Ruben Abagyan, Kaveh Ashrafi, James H McKerrow, Conor R Caffrey
BACKGROUND: Reliance on just one drug to treat the prevalent tropical disease, schistosomiasis, spurs the search for new drugs and drug targets. Inhibitors of human cyclic nucleotide phosphodiesterases (huPDEs), including PDE4, are under development as novel drugs to treat a range of chronic indications including asthma, chronic obstructive pulmonary disease and Alzheimer's disease. One class of huPDE4 inhibitors that have yielded marketed drugs is the benzoxaboroles (Anacor Pharmaceuticals)...
July 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28678867/gut-bacterial-peptides-with-autoimmunity-potential-as-environmental-trigger-for-late-onset-complex-diseases-in-silico-study
#5
Sapna Negi, Harpreet Singh, Anirban Mukhopadhyay
Recent evidences suggest that human gut microbiota with major component as bacteria can induce immunity. It is also known that gut lining depletes with ageing and that there is increased risk of autoimmune and inflammatory disorders with ageing. It is therefore likely that both may be correlated as depletion of gut lining exposes the gut bacterial antigens to host immune mechanisms, which may induce immunity to certain bacterial proteins, but at the same time such immunity may also be auto-immunogenic to host...
2017: PloS One
https://www.readbyqxmd.com/read/28665217/chronic-obstructive-pulmonary-disease-meta-genome-wide-association-studies-new-insights-into-the-genetics-of-chronic-obstructive-pulmonary-disease
#6
Charu Rajput
No abstract text is available yet for this article.
July 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28655780/dnmt3a-and-tet2-dominate-clonal-hematopoiesis-demonstrate-benign-phenotypes-and-different-genetic-predisposition
#7
Manuel Buscarlet, Sylvie Provost, Yassamin Feroz Zada, Amina Barhdadi, Vincent Bourgoin, Guylaine Lépine, Luigina Mollica, Natasha Szuber, Marie-Pierre Dubé, Lambert Busque
Age-associated clonal hematopoiesis caused by acquired mutations in myeloid cancer associated genes is highly prevalent in the normal population. Its etiology, biological impact on hematopoiesis and oncogenic risk is poorly defined at this time. To gain insight into this phenomenon, we analyzed a cohort of 2530 related and unrelated hematologically normal individuals (aged 55 to 101). We used a sensitive gene targeted deep sequencing approach to gain precision on the exact prevalence of driver mutations and the proportions of affected genes...
June 27, 2017: Blood
https://www.readbyqxmd.com/read/28651088/genetic-and-epigenetic-alterations-in-normal-and-sensitive-copd-diseased-human-bronchial-epithelial-cells-repeatedly-exposed-to-air-pollution-derived-pm2-5
#8
B Leclercq, A Platel, S Antherieu, L Y Alleman, E M Hardy, E Perdrix, N Grova, V Riffault, B M Appenzeller, M Happillon, F Nesslany, P Coddeville, J-M Lo-Guidice, G Garçon
Even though clinical, epidemiological and toxicological studies have progressively provided a better knowledge of the underlying mechanisms by which air pollution-derived particulate matter (PM) exerts its harmful health effects, further in vitro studies on relevant cell systems are still needed. Hence, aiming of getting closer to the human in vivo conditions, primary human bronchial epithelial cells derived from normal subjects (NHBE) or sensitive chronic obstructive pulmonary disease (COPD)-diseased patients (DHBE) were differentiated at the air-liquid interface...
June 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28620467/recent-advances-in-understanding-lung-function-development
#9
REVIEW
Erik Melén, Stefano Guerra
Recent years have witnessed critical contributions to our understanding of the determinants and long-term implications of lung function development. In this article, we review studies that have contributed to advances in understanding lung function development and its critical importance for lung health into adult life. In particular, we have focused on early life determinants that include genetic factors, perinatal events, environmental exposures, lifestyle, infancy lower respiratory tract infections, and persistent asthma phenotypes...
2017: F1000Research
https://www.readbyqxmd.com/read/28596295/genetic-variance-is-associated-with-susceptibility-for-cigarette-smoke-induced-damp-release-in-mice
#10
Simon D Pouwels, Alen Faiz, Lisette E den Boef, Reneé Gras, Maarten van den Berge, H Marike Boezen, Ron Korstanje, Nick H T Ten Hacken, Antoon J M van Oosterhout, Irene H Heijink, Martijn C Nawijn
Chronic obstructive pulmonary disease (COPD) is characterized by unresolved neutrophilic airway inflammation, and is caused by chronic exposure to toxic gases, such as cigarette smoke (CS), in genetically susceptible individuals. Recent data indicate a role for Damage Associated Molecular Patterns (DAMPs) in COPD. Here, we investigated the genetics of CS-induced DAMP release in 28 inbred mouse strains. Subsequently, in lung tissue from a subset of strains the expression of the identified candidate genes was analyzed...
June 8, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28579769/ampicillin-resistance-in-haemophilus-influenzae-from-copd-patients-in-the-uk
#11
Satyanarayana Maddi, Umme Kolsum, Sarah Jackson, Richard Barraclough, Barbara Maschera, Karen D Simpson, Thierry G Pascal, Serge Durviaux, Edith M Hessel, Dave Singh
BACKGROUND: Haemophilus influenzae is commonly isolated from the airways of COPD patients. Antibiotic treatment may cause the emergence of resistant H. influenzae strains, particularly ampicillin-resistant strains, including β-lactamase-negative ampicillin resistance (BLNAR) strains. Genetic identification using ftsI sequencing is the optimum method for identifying mutations within BLNAR strains. The prevalence of BLNAR in COPD patients during the stable state has not been reported. We investigated the antibiotic resistance patterns of H...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28566717/metabolomic-profiling-in-a-hedgehog-interacting-protein-hhip-murine-model-of-chronic-obstructive-pulmonary-disease
#12
Emily S Wan, Yan Li, Taotao Lao, Weiliang Qiu, Zhiqiang Jiang, John D Mancini, Caroline A Owen, Clary Clish, Dawn L DeMeo, Edwin K Silverman, Xiaobo Zhou
Genetic variants annotated to the hedgehog interacting protein (HHIP) are robustly associated with chronic obstructive pulmonary disease (COPD). Hhip haploinsufficiency in mice leads to increased susceptibility towards the development of emphysema following exposure to chronic cigarette smoke (CS). To explore the molecular pathways which contribute to increased susceptibility, we performed metabolomic profiling using high performance liquid chromatography tandem mass spectroscopy (LC/MS-MS) on plasma, urine, and lung tissue of Hhip (+/-) heterozygotes and wild type (Hhip (+/+)) C57/BL6 mice exposed to either room-air or CS for six months...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28562365/role-of-the-inflammasome-in-chronic-obstructive-pulmonary-disease-copd
#13
Chiara Colarusso, Michela Terlizzi, Antonio Molino, Aldo Pinto, Rosalinda Sorrentino
Inflammation is central to the development of chronic obstructive pulmonary disease (COPD), a pulmonary disorder characterized by chronic bronchitis, chronic airway obstruction, emphysema, associated to progressive and irreversible decline of lung function. Emerging genetic and pharmacological evidence suggests that IL-1-like cytokines are highly detected in the sputum and broncho-alveolar lavage (BAL) of COPD patients, implying the involvement of the multiprotein complex inflammasome. So far, scientific evidence has focused on nucleotide-binding oligomerization domain-like receptors protein 3 (NLRP3) inflammasome, a specialized inflammatory signaling platform that governs the maturation and secretion of IL-1-like cytokines through the regulation of caspase-1-dependent proteolytic processing...
May 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28558660/pneumonia-caused-by-extensive-drug-resistant-acinetobacter-baumannii-among-hospitalized-patients-genetic-relationships-risk-factors-and-mortality
#14
Yu Jun Li, Chu Zhi Pan, Chang Quan Fang, Zhu Xiang Zhao, Hui Ling Chen, Peng Hao Guo, Zi Wen Zhao
BACKGROUND: The clonal spread of multiple drug-resistant Acinetobacter baumannii is an emerging problem in China. We analysed the molecular epidemiology of Acinetobacter baumanni isolates at three teaching hospitals and investigated the risk factors, clinical features, and outcomes of hospital-acquired pneumonia caused by extensive drug-resistant Acinetobacter baumannii (XDRAB) infection in Guangzhou, China. METHODS: Fifty-two A. baumannii isolates were collected...
May 30, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28553097/two-chrn-susceptibility-variants-for-copd-are-genetic-determinants-of-emphysema-and-chest-computed-tomography-manifestations-in-chinese-patients
#15
Zhuxiang Zhao, Changbin Jiang, Dongxing Zhao, Yujun Li, Chunxiao Liang, Weifeng Liu, Shuquan Wei, Yumin Zhou, Ziwen Zhao, Pixin Ran
Quantitative computed tomography (CT) measures of emphysema have been shown to be associated with increased mortality in humans, but genetic variants affecting the quantitative parameters of chest CT that measure degree of emphysema have not yet been examined. In this study, using available chest CT data from a total of 344 emphysema patients, we assessed the correlations between five chronic obstructive pulmonary disease (COPD) susceptibility variants in the cholinergic receptor nicotinic (CHRN) genes and the degree of emphysema and chest CT manifestations...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28546746/genetic-polymorphism-and-chronic-obstructive-pulmonary-disease
#16
REVIEW
Cunhua Yuan, De Chang, Guangming Lu, Xiaowei Deng
Chronic obstructive pulmonary disease (COPD) is a common chronic disease, and its morbidity and mortality are increasing. There are many studies that have tried to explain the pathogenesis of COPD from genetic susceptibility, to identify the susceptibility of COPD factors, which play a role in early prevention, early detection and the early treatment. However, it is well known that COPD is an inflammatory disease characterized by incomplete reversible airflow limitation in which genes interact with the environment...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28542929/the-immune-response-to-prevotella-bacteria-in-chronic-inflammatory-disease
#17
REVIEW
Jeppe Madura Larsen
The microbiota plays a central role in human health and disease by shaping immune development, immune responses and metabolism, and by protecting from invading pathogens. Technical advances that allow comprehensive characterization of microbial communities by genetic sequencing have sparked the hunt for disease-modulating bacteria. Emerging studies in humans have linked the increased abundance of Prevotella species at mucosal sites to localized and systemic disease, including periodontitis, bacterial vaginosis, rheumatoid arthritis, metabolic disorders and low-grade systemic inflammation...
August 2017: Immunology
https://www.readbyqxmd.com/read/28522810/integrative-analysis-of-genomic-sequencing-data-reveals-higher-prevalence-of-lrp1b-mutations-in-lung-adenocarcinoma-patients-with-copd
#18
Dakai Xiao, Fuqiang Li, Hui Pan, Han Liang, Kui Wu, Jianxing He
Both chronic Obstruction Pulmonary Disease (COPD) and lung cancer are leading causes of death globally. Although COPD and lung cancer coexist frequently, it is unknown whether lung cancer patients with COPD harbor distinct genomic characteristics compared to those without COPD. In this study, we retrospectively analyzed genomic sequencing data from 272 patients with lung adenocarcinoma (LUAD) and compared the genetic alterations in LUAD patients with and without COPD. Integrative analysis of whole-genome and exome sequencing data revealed that COPD and non-COPD groups showed high concordance in mutational burden and spectra...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28516352/air-pollution-and-respiratory-health-among-diabetic-and-non-diabetic-subjects-in-pune-india-results-from-the-wellcome-trust-genetic-study
#19
Morteza Abdullatif Khafaie, Sundeep Santosh Salvi, Chittaranjan Sakerlal Yajnik, Ajay Ojha, Behzad Khafaie, Sharad Damodar Gore
Diabetics may be more vulnerable to the harmful effects of ambient air pollutants than healthy individuals. But, the risk factors that lead to susceptibility to air pollution in diabetics have not yet been identified. We examined the effect of exposure to ambient PM10 on chronic symptoms and the pulmonary function tests (PFT) in diabetic and non-diabetic subjects. Also, to investigate possible determinants of susceptibility, we recruited 400 type 2 diabetic and 465 healthy subjects who were investigated for chronic respiratory symptoms (CRSs) and then underwent measurement of forced vital capacity (FVC) and forced expiratory volume 1 (FEV1) according to standard protocol...
May 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28498894/the-intersection-of-aging-biology-and-the-pathobiology-of-lung-diseases-a-joint-nhlbi-nia-workshop
#20
Gr Scott Budinger, Ronald A Kohanski, Weiniu Gan, Michael S Kobor, Luis A Amaral, Mary Armanios, Karl T Kelsey, Annie Pardo, Rubin Tuder, Fernando Macian, Navdeep Chandel, Douglas Vaughan, Mauricio Rojas, Ana L Mora, Elizabeth Kovacs, Steven R Duncan, Toren Finkel, Augustine Choi, Oliver Eickelberg, Danica Chen, Alvar Agusti, Moises Selman, William E Balch, Paula Busse, Anning Lin, Richard Morimoto, Jacob I Sznajder, Victor J Thannickal
Death from chronic lung disease is increasing and Chronic Obstructive Pulmonary Disease has become the third leading cause of death in the United States in the past decade. Both chronic and acute lung diseases disproportionately affect elderly individuals, making it likely that these diseases will become more frequent and severe as the worldwide population ages. Chronic lung diseases are associated with substantial morbidity, frequently resulting in exercise limiting dyspnea, immobilization and isolation. Therefore, effective strategies to prevent or treat lung disease are likely to increase healthspan as well as lifespan...
May 12, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
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