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Asthma, COPD

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https://www.readbyqxmd.com/read/29773293/usefulness-of-the-forced-oscillation-technique-in-assessing-the-therapeutic-result-of-tracheobronchial-central-airway-obstruction
#1
Masanori Yasuo, Yoshiaki Kitaguchi, Fumiya Kinota, Makoto Kosaka, Kazuhisa Urushihata, Atsuhito Ushiki, Hiroshi Yamamoto, Satoshi Kawakami, Masayuki Hanaoka
BACKGROUND: Pulmonary function tests (PFTs) comprise the traditional method for detecting central airway obstruction (CAO) and evaluating therapeutic effects, but are effort-dependent. By contrast, the forced oscillation technique (FOT) is performed during tidal breathing in an effort-independent mode and is universally used to assess respiratory function in patients with chronic obstructive pulmonary disease (COPD) and asthma. We used the FOT to measure airway resistance and reactance in patients with CAO before and after interventional bronchoscopy and compared the results to data obtained using PFTs...
May 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29770729/group-sequential-designs-for-negative-binomial-outcomes
#2
Tobias Mütze, Ekkehard Glimm, Heinz Schmidli, Tim Friede
Count data and recurrent events in clinical trials, such as the number of lesions in magnetic resonance imaging in multiple sclerosis, the number of relapses in multiple sclerosis, the number of hospitalizations in heart failure, and the number of exacerbations in asthma or in chronic obstructive pulmonary disease (COPD) are often modeled by negative binomial distributions. In this manuscript, we study planning and analyzing clinical trials with group sequential designs for negative binomial outcomes. We propose a group sequential testing procedure for negative binomial outcomes based on Wald statistics using maximum likelihood estimators...
January 1, 2018: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/29768880/tio%C3%A2-nps-induce-dna-damage-in-lymphocytes-from-healthy-individuals-and-patients-with-respiratory-diseases-an-ex-vivo-in-vitro-study
#3
Ilham F Osman, Mojgan Najafzadeh, Vyom Sharma, Ritesh K Shukla, B K Jacob, Alok Dhawan, D Anderson
Little is known of the effects of nanoparticles in human systems, let alone in diseased individuals and nanotechnology has preceded nanotoxicology. Therefore, the effects of titanium dioxide (TiO2) nanoparticles in peripheral blood lymphocytes from patients with respiratory diseases [lung cancer, chronic obstructive pulmonary disease (COPD) and asthma] were compared with those in healthy Individuals, to determine differences in sensitivity to nanochemical insult. The Comet assay was performed according to recommended guidelines...
January 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29767222/mortality-in-asthma-chronic-obstructive-pulmonary-disease-overlap-in-the-united-states
#4
Suchit Kumbhare, Charlie Strange
OBJECTIVES: Asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) is recognized increasingly as a distinct clinical entity and is associated with higher comorbidities compared with patients with asthma and COPD alone. Little is known about the leading causes of death related to ACO in the US general population, however. Our aim was to define the causes of mortality among patients with ACO compared with asthma and COPD in the US population. METHODS: We examined questions using the National Health and Nutrition Examination Survey III database linked to the National Death Index...
May 2018: Southern Medical Journal
https://www.readbyqxmd.com/read/29763833/%C3%AE-2-adrenoceptor-signalling-bias-in-asthma-and-copd-and-the-potential-impact-on-the-comorbidities-associated-with-these-diseases
#5
REVIEW
Maria Gabriella Matera, Clive Page, Barbara Rinaldi
Inhaled selective β2-agonists are the most widely used treatment for obstructive airway diseases. The classical mechanism of action of these drugs is considered as their ability to activate β2-adrenergic receptors (β2-AR) on airway smooth muscle leading to G-protein activation and subsequent generation of c-AMP causing bronchodilation. However, there is now growing evidence to suggest that binding of β2-agonists to β2-AR is pleotropically coupled to many intracellular pathways whereby depending on the state of the β2-AR when activated, a subset of different intracellular responses can be triggered...
May 12, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29757966/cnt-foam-embedded-micro-gas-preconcentrator-for-low-concentration-ethane-measurements
#6
Janghyeon Lee, Si-Hyung Lim
Breath analysis has become increasingly important as a noninvasive process for the clinical diagnosis of patients suffering from various diseases. Many commercial gas preconcentration instruments are already being used to overcome the detection limits of commercial gas sensors for gas concentrations which are as low as ~100 ppb in exhaled breath. However, commercial instruments are large and expensive, and they require high power consumption and intensive maintenance. In the proposed study, a micro gas preconcentrator (μ-PC) filled with a carbon nanotube (CNT) foam as an adsorbing material was designed and fabricated for the detection of low-concentration ethane, which is known to be one of the most important biomarkers related to chronic obstructive pulmonary disease (COPD) and asthma...
May 14, 2018: Sensors
https://www.readbyqxmd.com/read/29755807/assessing-the-prevalence-and-incidence-of-asthma-and-chronic-obstructive-pulmonary-disease-in-the-eastern-mediterranean-region
#7
Mohammadreza Masjedi, Elaheh Ainy, Faried Zayeri, Rogayeh Paydar
OBJECTIVES: This study conducted in 2016 aimed to assess the prevalence and incidence of asthma and chronic obstructive pulmonary disease (COPD) in the Eastern Mediterranean Region (EMR). MATERIAL AND METHODS: A meta-analysis to evaluate the published research relating to asthma and COPD was conducted using data from 23 EMR Office (EMRO) countries and searching using the web of science, PubMed, SciVerse Scopus, Google scholar, and MEDLINE databases. The keywords entered were all EMRO countries (Afghanistan, Bahrain, Djibouti, Egypt, Islamic republic Iran, Iraq, Jordan, Kuwait, Lebanon, Libyan Arab Jamahiriya, Morocco, Oman, Pakistan, Palestine, Qatar, Saudi Arab, Somalia, Sudan, Syrian Arab Republic, Tunisia, the United Arab Emirates, Yemen republic, and Cyprus) and asthma OR chronic obstructive pulmonary disease (COPD) OR (chronic bronchitis)...
April 2018: Turkish Thoracic Journal
https://www.readbyqxmd.com/read/29755730/having-concomitant-asthma-phenotypes-is-common-and-independently-relates-to-poor-lung-function-in-nhanes-2007-2012
#8
Rita Amaral, João A Fonseca, Tiago Jacinto, Ana M Pereira, Andrei Malinovschi, Christer Janson, Kjell Alving
Background: Evidence for distinct asthma phenotypes and their overlap is becoming increasingly relevant to identify personalized and targeted therapeutic strategies. In this study, we aimed to describe the overlap of five commonly reported asthma phenotypes in US adults with current asthma and assess its association with asthma outcomes. Methods: Data from the National Health and Nutrition Examination Surveys (NHANES) 2007-2012 were used (n = 30,442). Adults with current asthma were selected...
2018: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/29754717/diagnosis-of-asthma-copd-overlap-is-it-possible-a-global-definition
#9
EDITORIAL
M Miravitlles
No abstract text is available yet for this article.
May 2018: Pulmonology
https://www.readbyqxmd.com/read/29752708/coexistence-of-chronic-bronchitis-in-chronic-obstructive-lung-disease
#10
Filip Mejza, Paweł Nastałek, Agnieszka Mastalerz-Migas, Zbigniew Doniec, Wojciech Skucha
The incidence of chronic obstructive pulmonary disease (COPD) is on the rise worldwide. Chronic bronchitis is a frequent accompaniment of COPD, which increases the burden of COPD in affected individuals. The aim of this study was to characterize the phenotype of chronic bronchitis in COPD patients. The study was based on the survey data retrospectively retrieved from the Action Health-Lung Cancer Prophylaxis and Health Care Improvement screening program that concerned all the inhabitants, aged over 40, of the Proszowice administrative region situated in the Lesser Poland Voivodeship in southern Poland...
May 12, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29750029/mortality-in-copd-patients-according-to-clinical-phenotypes
#11
Rafael Golpe, María Suárez-Valor, Irene Martín-Robles, Pilar Sanjuán-López, Esteban Cano-Jiménez, Olalla Castro-Añón, Luis A Pérez de Llano
Purpose: Grouping COPD subjects into clinical phenotypes might be useful for the management of the disease, but the clinical implications of such classification are still not totally clear, especially regarding prognosis. The primary objective of this study was to assess whether the mortality rates were different between four predefined clinical phenotypes. Patients and methods: This is a retrospective, observational study carried out at the COPD clinic of a University Hospital...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29748064/-helping-smoking-cessation-in-copd-asthma-lung-cancer-operated-smokers
#12
J Perriot, M Underner, G Peiffer, B Dautzenberg
Smoking is the cause of addictive behavior. Tobacco addiction is a chronic disease that makes difficult to stop smoking and leads to further use. Smoking is a risk factor for COPD, asthma and lung cancer; it may be the cause of severe perioperative complications. This finding justifies that smokers benefit from advice of stopping smoking and smoking cessation assistance. Helping patients to stop smoking increases the chances of quitting, improves the prognosis of tobacco-related diseases, the effectiveness of their treatments and the quality of life of the patients...
May 7, 2018: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29748063/-is-reduction-of-tobacco-consumption-associated-with-reduced-risk-of-cardiovascular-and-pulmonary-mortality-and-morbidity
#13
REVIEW
M Underner, G Peiffer, J Perriot, G Harika-Germaneau, N Jaafari
INTRODUCTION: Smokers without an intention to completely quit smoking often try to reduce their daily tobacco consumption. However, smoking reduction is not associated with reduced risk of all-cause mortality. The aim of this systematic literature review of data was to expose relations between reduction of daily tobacco consumption and a potential decrease in the risks of cardiovascular and pulmonary mortality and morbidity. METHOD: Medline, on the period 1980-2018 with the following keywords: "smoking reduction", "harm reduction", "mortality", "morbidity", "cardiovascular disease* ", myocardial infarction", "coronar* ", "stroke", "lung cancer", "COPD", "chronic obstructive pulmonary disease", "asthma", "pulmonary disease* " and "respiratory disease" limits "title/abstract"; the selected languages were English or French...
May 7, 2018: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29746147/female-sex-and-gender-in-lung-sleep-health-and-disease-increased-understanding-of-basic-biological-pathophysiological-and-behavioral-mechanisms-leading-to-better-health-for-female-patients-with-lung-disease
#14
MeiLan K Han, Emilio Arteaga-Solis, John Blenis, Ghada Bourjeily, Deborah J Clegg, Dawn DeMeo, Jeanne Duffy, Ben Gaston, Nicola M Heller, Anna Hemnes, Elizabeth Petri Henske, Raksha Jain, Tim Lahm, Lisa H Lancaster, Joyce Lee, Marianne J Legato, Sherry McKee, Reena Mehra, Alison Morris, Y S Prakash, Martin R Stampfli, Rashmi Gopal-Srivastava, Aaron D Laposky, Antonello Punturieri, Lora Reineck, Xenia Tigno, Janine Clayton
Female sex/gender is an under-characterized variable in studies related to lung development and disease. Notwithstanding, many aspects of lung and sleep biology and pathobiology are impacted by female sex and female reproductive transitions. These may manifest as differential gene expression or peculiar organ development. Some conditions are more prevalent in women, such as asthma and insomnia, or in the case of LAM, are seen almost exclusively in women. In other diseases, presentation differs such as the higher frequency of exacerbations experienced by women with COPD or greater cardiac morbidity among women with sleep disordered breathing...
May 10, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29744319/correlation-of-severity-of-functional-gastrointestinal-disease-symptoms-with-that-of-asthma-and-chronic-obstructive-pulmonary-disease-a-multicenter-study
#15
Umesh Chandra Ojha, Devesh Pratap Singh, Omkar Kalidasrao Choudhari, Dipti Gothi, Shweta Singh
Introduction: There is a growing clinical awareness about the influence of gut-lung axis on lung injury and coexisting manifestations of disease processes in both the intestine and lungs. Patients of chronic lung diseases such as chronic obstructive pulmonary disease (COPD) and asthma very often present with coexistent gut symptoms. In the present study, we have tried to establish the correlation of severity of pulmonary pathology of COPD and asthma patients with functional gastrointestinal (GI) symptoms of the patients...
April 2018: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29743784/high-prevalence-of-chronic-respiratory-symptoms-among-autorickshaw-drivers-of-urban-puducherry-south-india
#16
Peter Stephen, Thulasingam Mahalakshmy, Rajaram Manju, Karthik B Laksham, Sudalai Subramani, Kanhu Panda, Sonali Sarkar
Context: Auto-rickshaw (three wheelers open cabin type of vehicle) drivers are exposed to traffic air pollution. Studies have demonstrated reduced pulmonary function among drivers. However, limited studies have determined the prevalence of chronic respiratory symptoms or chronic obstructive pulmonary disease (COPD) among drivers. Aims: Among auto-rickshaw drivers of urban Puducherry to determine prevalence of (i) chronic respiratory symptoms by using Indian Study on Epidemiology of Asthma, Respiratory Symptoms, and Chronic Bronchitis (INSEARCH) questionnaire and (ii) COPD by measuring peak expiratory flow rate (PEFR)...
January 2018: Indian Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29742176/proportion-and-clinical-characteristics-of-non-asthmatic-non-smokers-among-adults-with-airflow-obstruction
#17
Hiroto Takiguchi, Tomoe Takeuchi, Kyoko Niimi, Hiromi Tomomatsu, Katsuyoshi Tomomatsu, Naoki Hayama, Tsuyoshi Oguma, Takuya Aoki, Tetsuya Urano, Satomi Asai, Hayato Miyachi, Koichiro Asano
BACKGROUND AND OBJECTIVES: Chronic obstructive pulmonary disease (COPD) mainly develops after long-term exposure to cigarette or biomass fuel smoke, but also occurs in non-smokers with or without a history of asthma. We investigated the proportion and clinical characteristics of non-smokers among middle-aged to elderly subjects with airflow obstruction. METHODS: We retrospectively analyzed 1,892 subjects aged 40-89 years who underwent routine preoperative spirometry at a tertiary university hospital in Japan...
2018: PloS One
https://www.readbyqxmd.com/read/29738276/psychosocial-risk-factors-and-asthma-among-adults-in-puerto-rico
#18
Yueh-Ying Han, Erick Forno, Glorisa Canino, Juan C Celedón
OBJECTIVE: Asthma and psychosocial stressors are common among Puerto Rican adults living in the United States. We estimated the prevalence of current asthma, and examined potential psychosocial risk factors and current asthma, among adults in Puerto Rico. METHODS: Cross-sectional study of 3,049 Puerto Ricans aged 18-64 years living in Puerto Rico between May 2014 and June 2016. A structured interview was conducted to obtain information on demographics, lifestyles, mental disorders, and respiratory health...
May 8, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29738272/fall-episodes-in-elderly-patients-with-asthma-and-copd-a-pilot-study
#19
Andrzej Bozek, Jerzy Jarzab, Ewa Hadas, Marek Jakalski, Giorgio Walter Canonica
OBJECTIVE: Evidence of an increased risk of falls in patients with chronic obstructive pulmonary disease (COPD) exists; however, this has not been studied in elderly asthmatic patients. The aim of the study was to determine the incidence of falls in elderly patients who were diagnosed with bronchial asthma compared to subjects with COPD. METHODS: A 12 - month prospective observational study in elderly outpatients with diagnosis of either asthma or COPD was conducted...
May 8, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29737010/early-life-origins-of-the-asthma-copd-overlap-syndrome
#20
EDITORIAL
Robert J Hancox, Xian Zhang
No abstract text is available yet for this article.
May 8, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
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