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https://www.readbyqxmd.com/read/28620467/recent-advances-in-understanding-lung-function-development
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
REVIEW
Jeppe Madura Larsen
The microbiota plays a central role in human health and disease by shaping immune development, immune responses, metabolism, and 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 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...
May 19, 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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28496314/treatment-of-lung-disease-in-alpha-1-antitrypsin-deficiency-a-systematic-review
#13
REVIEW
Ross G Edgar, Mitesh Patel, Susan Bayliss, Diana Crossley, Elizabeth Sapey, Alice M Turner
BACKGROUND: Alpha-1 antitrypsin deficiency (AATD) is a rare genetic condition predisposing individuals to chronic obstructive pulmonary disease (COPD). The treatment is generally extrapolated from COPD unrelated to AATD; however, most COPD trials exclude AATD patients; thus, this study sought to systematically review AATD-specific literature to assist evidence-based patient management. METHODS: Standard review methodology was used with meta-analysis and narrative synthesis (PROSPERO-CRD42015019354)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28476564/global-mortality-variations-in-patients-with-heart-failure-results-from-the-international-congestive-heart-failure-inter-chf-prospective-cohort-study
#14
Hisham Dokainish, Koon Teo, Jun Zhu, Ambuj Roy, Khalid F AlHabib, Ahmed ElSayed, Lia Palileo-Villaneuva, Patricio Lopez-Jaramillo, Kamilu Karaye, Khalid Yusoff, Andres Orlandini, Karen Sliwa, Charles Mondo, Fernando Lanas, Dorairaj Prabhakaran, Amr Badr, Mohamed Elmaghawry, Albertino Damasceno, Kemi Tibazarwa, Emilie Belley-Cote, Kumar Balasubramanian, Shofiqul Islam, Magdi H Yacoub, Mark D Huffman, Karen Harkness, Alex Grinvalds, Robert McKelvie, Shrikant I Bangdiwala, Salim Yusuf
BACKGROUND: Most data on mortality and prognostic factors in patients with heart failure come from North America and Europe, with little information from other regions. Here, in the International Congestive Heart Failure (INTER-CHF) study, we aimed to measure mortality at 1 year in patients with heart failure in Africa, China, India, the Middle East, southeast Asia and South America; we also explored demographic, clinical, and socioeconomic variables associated with mortality. METHODS: We enrolled consecutive patients with heart failure (3695 [66%] clinic outpatients, 2105 [34%] hospital in patients) from 108 centres in six geographical regions...
May 3, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28464990/ephx1-y113h-polymorphism-is-associated-with-increased-risk-of-chronic-obstructive-pulmonary-disease-in-kazakhstan-population
#15
Almira Akparova, Balkiya Abdrakhmanova, Nilanjana Banerjee, Rakhmetkazhy Bersimbaev
Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long term poor airflow which worsens over time. It is considered to be one of the top five chronic diseases of the world in terms of morbidity and mortality. Genetic variability has been found to contribute to the development of COPD. Although association between gene polymorphisms in EPHX1 and TNF-a genes and chronic obstructive pulmonary disease (COPD) have been found but till date no genetic association studies have been done in the COPD affected Kazakhstan population...
April 2017: Mutation Research
https://www.readbyqxmd.com/read/28464818/sulfatase-modifying-factor-1-sumf1-is-associated-with-chronic-obstructive-pulmonary-disease
#16
Julie Weidner, Linnea Jarenbäck, Kim de Jong, Judith M Vonk, Maarten van den Berge, Corry-Anke Brandsma, H Marike Boezen, Don Sin, Yohan Bossé, David Nickle, Jaro Ankerst, Leif Bjermer, Dirkje S Postma, Alen Faiz, Ellen Tufvesson
BACKGROUND: It has been observed that mice lacking the sulfatase modifying factor (Sumf1) developed an emphysema-like phenotype. However, it is unknown if SUMF1 may play a role in Chronic Obstructive Pulmonary Disease (COPD) in humans. The aim was to investigate if the expression and genetic regulation of SUMF1 differs between smokers with and without COPD. METHODS: SUMF1 mRNA was investigated in sputum cells and whole blood from controls and COPD patients (all current or former smokers)...
May 2, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28459279/integrative-genomics-of-emphysema-associated-genes-reveals-potential-disease-biomarkers
#17
Ma'en Obeidat, Yunlong Nie, Nick Fishbane, Xuan Li, Yohan Bossé, Philippe Joubert, David C Nickle, Ke Hao, Dirkje S Postma, Wim Timens, Marc A Sze, Casey P Shannon, Zsuzsanna Hollander, Raymond T Ng, Bruce McManus, Bruce E Miller, Stephen Rennard, Avrum Spira, Tillie Louise Hackett, Wan Lam, Stephen Lam, Rosa Faner, Alvar Agusti, James C Hogg, Don D Sin, Peter D Paré
RATIONALE: Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide. Gene expression profiling across multiple regions of the same lung identified genes significantly related to emphysema. OBJECTIVE: To determine whether the lung and epithelial expression of 127 emphysema-related genes is also related to lung function in independent cohorts and whether any of these genes could be used as biomarkers in the peripheral blood of COPD patients...
May 1, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28441029/variable-susceptibility-to-cigarette-smoke-induced-emphysema-in-34-inbred-strains-of-mice-implicates-abi3bp-in-emphysema-susceptibility
#18
Josiah E Radder, Alyssa D Gregory, Adriana S Leme, Michael H Cho, Yanxia Chu, Neil J Kelly, Per Bakke, Amund Gulsvik, Augusto A Litonjua, David Sparrow, Terri H Beaty, James D Crapo, Edwin K Silverman, Yingze Zhang, Annerose Berndt, Steven D Shapiro
RATIONALE: Chronic obstructive pulmonary disease (COPD) is caused by a complex interaction of environmental exposures, most commonly cigarette smoke, and genetic factors. Chronic cigarette smoke exposure in the mouse is a commonly used animal model of COPD. We aimed to expand our knowledge of the variable susceptibility of inbred strains to this model and test for genetic variants associated with this trait. OBJECTIVE: To measure differential susceptibility to cigarette smoke-induced emphysema in the mouse, identify genetic loci associated with this quantitative trait, and find homologous human genes associated with COPD...
April 25, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28435243/peripheral-leukocyte-micrornas-as-novel-biomarkers-for-copd
#19
Ruiying Wang, Jianying Xu, Hu Liu, Zhiping Zhao
COPD is a multifactorial disease caused by environmental determinants as well as genetic risk factors. The prevalence and mortality of COPD continue to increase, and underdiagnosis of COPD remains a critical issue. Previous reports investigated promising microRNAs (miRNAs) to reveal the molecular mechanism for the development of COPD; however, diagnostic and therapeutic markers for COPD have not yet been found. For this study, 20 representative COPD patients were separated into four groups based on increasing severity (A, B, C, and D) and compared to six healthy controls...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28427967/mechanisms-underlying-hiv-associated-non-infectious-lung-disease
#20
REVIEW
Rachel M Presti, Sonia C Flores, Brent E Palmer, Jeffrey J Atkinson, Catherine R Lesko, Bryan Lau, Andrew P Fontenot, Jesse Roman, John F McDyer, Homer L Twigg
Pulmonary disease remains a primary source of morbidity and mortality in persons living with HIV (PLWH), although the advent of potent combination antiretroviral therapy (cART) has resulted in a shift from predominantly infectious to noninfectious pulmonary complications. PLWH are at high risk for chronic obstructive pulmonary disease, pulmonary hypertension, and lung cancer even in the era of cART. The underlying mechanisms of this are incompletely understood, but recent research in both human and animal models suggest that oxidative stress, expression of matrix metalloproteinases, and genetic instability may result in lung damage which predisposes PLWH to these conditions...
April 17, 2017: Chest
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