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Asthma bronchiale

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https://www.readbyqxmd.com/read/29221918/low-variability-in-peak-expiratory-flow-predicts-successful-inhaled-corticosteroid-step-down-in-adults-with-asthma
#1
Naomi Tsurikisawa, Chiyako Oshikata, Toshio Sato, Goro Kimura, Masami Mizuki, Takahiro Tsuburai, Shunsuke Shoji, Hiroshi Saito, Terufumi Shimoda
BACKGROUND: The prognosis for patients beyond 1 year after reduction of their inhaled corticosteroid (ICS) dose remains unknown. Predictive factors that can be evaluated before the initiation of asthma treatment or at ICS dose reduction are unknown. METHODS: We prospectively studied 223 patients in 6 hospitals in the National Hospital Organization of Japan during the 36 months after 50% reduction of their daily ICS dose. All patients recorded their morning and evening peak expiratory flows (PEFs) in their diaries...
December 5, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29221262/differences-in-airway-remodeling-and-airway-inflammation-among-moderate-severe-asthma-clinical-phenotypes
#2
Wen-Jing Ye, Wei-Guo Xu, Xue-Jun Guo, Feng-Feng Han, Juan Peng, Xiao-Ming Li, Wen-Bin Guan, Li-Wei Yu, Jin-Yuan Sun, Zhi-Lei Cui, Lin Song, Yue Zhang, Yan-Min Wang, Tian-Yun Yang, Xia-Hui Ge, Di Yao, Song Liu
Background: To identify asthma clinical phenotypes using cluster analysis and improve our understanding of heterogeneity in asthma. Methods: Clustering approaches were applied to 203 patients who were diagnosed with asthma in XinHua Hospital (January 2012 to December 2015). One hundred and twenty patients underwent multi-slice spiral computed tomography (MSCT) examination and 30 underwent bronchial mucosal biopsy for evaluation of airway remodeling and airway inflammation among the phenotypes...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29220595/dose-dependent-effects-of-tadalafil-and-roflumilast-on-ovalbumin-induced-airway-hyperresponsiveness-in-guinea-pigs
#3
Anna Urbanova, Ivana Medvedova, Martin Kertys, Pavol Mikolka, Petra Kosutova, Daniela Mokra, Juraj Mokrý
INTRODUCTION: Chronic obstructive diseases of airways associated with cough and/or airway smooth muscle hyperresponsiveness are usually treated with bronchodilating and anti-inflammatory drugs. Recently, selective phosphodiesterase (PDE) 4 inhibitors have been introduced into the therapy of chronic obstructive pulmonary disease. Several studies have demonstrated their ability to influence the airway reactivity and eosinophilic inflammation by increasing the intracellular cAMP concentrations also in bronchial asthma...
December 8, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29217995/the-alteration-of-irisin-brain-derived-neurotrophic-factor-axis-parallels-severity-of-distress-disorder-in-bronchial-asthma-patients
#4
Magdolna E Szilasi, Krisztian Pak, Laszlo Kardos, Viktoria E Varga, Ildiko Seres, Angela Mikaczo, Andrea Fodor, Maria Szilasi, Gabor Tajti, Csaba Papp, Rudolf Gesztelyi, Judit Zsuga
Distress disorder (a collective term for generalized anxiety disorder and major depressive disorder) is a well-known co-morbidity of bronchial asthma. The irisin-brain-derived neurotrophic factor (BDNF) axis is a pathway that influences several neurobehavioral mechanisms involved in the pathogenesis of distress disorder. Thus, the aim of the present study was to quantify the serum irisin and BDNF concentrations in order to investigate the possible link between the irisin/BDNF axis and distress disorder in an asthma patient cohort...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29211208/accuracy-of-spirometry-for-detection-of-asthma-a-cross-sectional-study
#5
Andréa Cristina Meneghini, Ana Carolina Botto Paulino, Luciano Penha Pereira, Elcio Oliveira Vianna
BACKGROUND: Asthma is a chronic inflammatory disease with airway hyperresponsiveness. Spirometry is the most commonly used test among asthmatic patients. Another functional test used for diagnosing asthma is the bronchial challenge test. The aim of this study was to analyze the accuracy of spirometry for detecting asthma in the general population. DESIGN AND SETTING: Cross-sectional study with data analysis to evaluate the accuracy of spirometry through calculating sensitivity, specificity and predictive values and through the kappa agreement test...
September 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29210131/allergens-produce-serine-proteases-dependent-distinct-release-of-metabolite-damps-in-human-bronchial-epithelial-cells
#6
Sangeetha Ramu, Mandy Menzel, Leif Bjermer, Cecilia Andersson, Hamid Akbarshahi, Lena Uller
BACKGROUND: The respiratory epithelium is a major site for disease interaction with inhaled allergens. Additional to IgE-dependent effects, allergens contain proteases that may stimulate human bronchial epithelial cells (HBECs) through protease-activated receptors, causing the release of mediators important in driving Th2 mediated immune responses. OBJECTIVE: We aimed to investigate if different allergens induce metabolite DAMPs such as ATP and uric acid (UA) release in HBECs...
December 6, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29209456/novel-glutathione-containing-dry-yeast-extracts-inhibit-eosinophilia-and-mucus-overproduction-in-a-murine-model-of-asthma
#7
Yun-Ho Kim, Yean-Jung Choi, Eun-Jung Lee, Min-Kyung Kang, Sin-Hye Park, Dong Yeon Kim, Hyeongjoo Oh, Sang-Jae Park, Young-Hee Kang
BACKGROUND/OBSECTIVE: Airway inflammation by eosinophils, neutrophils and alveolar macrophages is a characteristic feature of asthma that leads to pathological subepithelial thickening and remodeling. Our previous study showed that oxidative stress in airways resulted in eosinophilia and epithelial apoptosis. The current study investigated whether glutathione-containing dry yeast extract (dry-YE) ameliorated eosinophilia, goblet cell hyperplasia and mucus overproduction. MATERIALS/METHOD: This study employed 2 µg/mL lipopolysaccharide (LPS)- or 20 ng/mL eotaxin-1-exposed human bronchial epithelial cells and ovalbumin (OVA)-challenged mice...
December 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/29208876/disease-pattern-among-children-attending-pediatric-outpatient-department-in-community-based-medical-college-hospital-bangladesh
#8
M Begum, M K Khan, M T Hossain, M Y Ali, F S Alam, S S Dipu, A H Hasan, M Nasrin
Disease pattern is based on socio-demographic characteristics, comprehensive health care services, and environmental variables like water supply, basic sanitation and housing, illness behavior like quick decision to arrive at health care facility, and treatment behavior like the modality of treatment they receive. The descriptive cross-sectional study was conducted during the period of January 2014 to December 2015. The study was carried out among 310 purposively selected children attended at Pediatric Outpatient department of Community Based Medical College Hospital, Bangladesh...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29207992/correction-to-chronic-obstructive-pulmonary-disease-bronchial-asthma-and-allergic-rhinitis-in-the-adult-population-within-the-commonwealth-of-independent-states-rationale-and-design-of-the-core-study
#9
Yuriy Feshchenko, Liudmyla Iashyna, Damilya Nugmanova, Olga Gyrina, Maryna Polianska, Alexander Markov, Maryna Moibenko, Janina Makarova, Luqman Tariq, Marcelo Horacio S Pereira, Eljan Mammadbayov, Irada Akhundova, Averyan Vasylyev
After publication of this work [1] it was noticed three author names were spelt incorrectly. Liudmila Iashyna should be Liudmyla Iashyna, Marina Polyanskaya should be Maryna Polianska and Elcan Mamamdbayov should be Eljan Mammadbayov.
December 5, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29207033/epigallocatechin-3-gallate-inhibits-inflammation-and-epithelial%C3%A2-mesenchymal-transition-through-the-pi3k-akt-pathway-via-upregulation-of-pten-in-asthma
#10
Nan Yang, Han Zhang, Xuxu Cai, Yunxiao Shang
Asthma is a chronic disease associated with hyperresponsiveness, obstruction and remodeling of the airways. Epithelial-mesenchymal transition (EMT) has an important role in these alterations and may account for the accumulation of subepithelial mesenchymal cells, thus contributing to airway hyperresponsiveness and remodeling. Epigallo-catechin‑3‑gallate (EGCG), which is a type of polyphenol, is the most potent ingredient in green tea, and exhibits antibacterial, antiviral, antioxidative, anticancer and chemopreventive activities...
November 28, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29207030/der-f1-induces-pyroptosis-in-human-bronchial-epithelia-via-the-nlrp3-inflammasome
#11
Ying-Ming Tsai, Kuo-Hwa Chiang, Jen-Yu Hung, Wei-An Chang, Hui-Ping Lin, Jiunn-Min Shieh, Inn-Wen Chong, Ya-Ling Hsu
Damage to the bronchial epithelium leads to persistent inflammation and airway remodelling in various respiratory diseases, such as asthma and chronic obstructive pulmonary disease. To date, the mechanisms underlying bronchial epithelial cell damage and death by common allergens remain largely unknown. The aim of the present study was to investigate Der f1, an allergen of Dermatophagoides farinae, which may result in the death of human bronchial epithelial cells (HBECs). Der f1 induces BECs to undergo the inflammatory cell death referred to as pyroptosis, induced by increasing lactate dehydrogenase release and propidium iodide penetration...
December 5, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29204432/caspase-1-deficiency-reduces-eosinophilia-and-interleukin-33-in-an-asthma-exacerbation-model
#12
Mandy Menzel, Hamid Akbarshahi, Irma Mahmutovic Persson, Manoj Puthia, Leif Bjermer, Lena Uller
Rhinovirus infections are common triggers of asthma exacerbations. Viruses can activate the inflammasome, resulting in processing and activation of caspase-1. This recruitment triggers production of interleukin (IL)-1β and IL-18, which have been implicated in asthma. Elucidating the involvement of the inflammasome and its compartments, such as caspase-1, in asthma exacerbations is warranted. Gene expression of caspase-1 was measured in rhinovirus-infected primary bronchial epithelial cells of asthmatic and healthy donors 24 h post-infection...
October 2017: ERJ Open Research
https://www.readbyqxmd.com/read/29203755/churg-strauss-syndrome-a-case-report
#13
Vyacheslav М Zhdan, Yevdokiia М Kitura, Oksana Ye Kitura, Maryna Yu Babanina, Maksym V Tkachenko, Volodymyr G Lebid
A clinical case of Churg-Strauss syndrome has been reported on the 53-year-old female patient Ts. with bronchial asthma and allergic rhinitis. The main clinical signs and syndromes depending on the stage of the disease are presented, as well as therapeutic treatment of patients with this disease.
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29202404/discovery-of-a-novel-series-of-%C3%AE-terpineol-derivatives-as-promising-anti-asthmatic-agents-their-design-synthesis-and-biological-evaluation
#14
Wanping Zhu, Xia Liu, Yuji Wang, Yeling Tong, Yongzhou Hu
A series of novel α-terpineol derivatives were designed and synthesized through structural derivatization of the tertiary hydroxyl moiety or reduction of the double bond. Of the resulting compounds, eight compounds enhanced relaxation of airway smooth muscle (ASM) compared to the α-terpineol precursor, and four compounds (4a, 4d, 4e, and 4i)were superior or comparable to aminophylline at a concentration of 0.75 mmol/L. Assays for 3'-5'-Cyclic adenosine monophpsphate (cAMP) activation revealed that some representative α-terpineol derivatives in this series were capable of upregulating the level of cAMP in ASM cells...
August 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29193127/pregnancy-and-perinatal-conditions-and-atopic-disease-prevalence-in-childhood-and-adulthood
#15
Jessica Gerlich, Nora Benecke, Astrid S Peters-Weist, Sabine Heinrich, Diana Roller, Jon Genuneit, Gudrun Weinmayr, Doris Windstetter, Holger Dressel, U Range, Dennis Nowak, Erika von Mutius, Katja Radon, Christian Vogelberg
BACKGROUND: Previous studies showed controversial results for the influence of pregnancy-related and perinatal factors on subsequent respiratory and atopic diseases in children. The aim of this study was to assess the association between perinatal variables and the prevalence of asthma, bronchial hyperreactivity, flexural eczema, allergic rhinitis, and sensitization in childhood and early adulthood. METHODS: The studied population was first examined in Munich and Dresden in 1995/1996 at age 9-11 yrs...
November 29, 2017: Allergy
https://www.readbyqxmd.com/read/29191361/comparing-the-effects-of-fluticasone-anti-ige-and-anti-tnf-treatments-in-a-chronic-asthma-model
#16
M Y Ozkars, O Keskin, M Tokur, M Ulasli, B Gogebakan, H Ciralik, E Kucukosmanoglu, C Demirel, S Oztuzcu, H Kahraman
BACKGROUND: Corticosteroids are used in the treatment of asthma. The aim of this study was to determine the efficacy of anti-IgE and anti-TNF alpha as asthma treatments. METHODS: A mouse model of chronic asthma was developed. The fluticasone group was exposed to fluticasone and the anti-IgE and anti-TNF groups were administered anti-IgE or anti-TNF. IL-4, and IgE levels were measured, and histological analysis, pathological analysis and miRNA-126, miRNA-133a analyses were applied...
November 27, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29189668/the-role-of-airway-inflammation-and-bronchial-hyperresponsiveness-in-athlete-s-asthma
#17
Julie Stang, Liv Ingunn Bjoner Sikkeland, Ellen Tufvesson, Are Martin Holm, Trine Stensrud, Kai-Håkon Carlsen
PURPOSE: Asthma is frequently reported in endurance athletes. The aim of the present study was to assess the long-term airway inflammatory response to endurance exercise in high-level athletes with and without asthma. METHODS: In a cross-sectional design, 20 asthmatic athletes (10 swimmers, 10 cross-country skiers), 19 athletes without asthma (10 swimmers, 9 cross-country skiers) and 24 healthy non-athletes completed methacholine bronchial challenge, lung function tests and sputum induction on two separate days...
November 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29184413/near-fatal-asthma-responsive-to-mepolizumab-after-failure-of-omalizumab-and-bronchial-thermoplasty
#18
Francesco Menzella, Carla Galeone, Mirco Lusuardi, Anna Simonazzi, Claudia Castagnetti, Patrizia Ruggiero, Nicola Facciolongo
Severe asthma affects between 5% and 10% of patients with asthma worldwide and requires best standard therapies at maximal doses, but there is a subgroup of patients refractory to all treatments. We share a case report of a 53-year-old woman with a history of severe allergic asthma that progressively worsened over the years despite the best therapy. She had been hospitalized 35 times, including nine admissions to the respiratory intensive care unit due to severe exacerbations. To rule out other possible diagnoses, several investigations were performed, such as computed tomography scan of the chest and neck, fiberoptic laryngoscopy, antineutrophil cytoplasmic antibodies, and complete blood cell count...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29183929/effectiveness-of-inhaled-corticosteroids-in-real-life-on-clinical-outcomes-sputum-cells-and-systemic-inflammation-in-asthmatics-a-retrospective-cohort-study-in-a-secondary-care-centre
#19
Sophie F Demarche, Florence N Schleich, Monique A Henket, Virginie A Paulus, Thierry J Van Hees, Renaud E Louis
OBJECTIVES: The impact of inhaled corticosteroids (ICS) on eosinophilic inflammation in asthma is well established, but their effect in a real-life setting has not been extensively studied. Our purpose was to investigate the effect of ICS on airway and systemic inflammation as well as on clinical outcomes in patients with asthma from clinical practice. DESIGN, SETTING AND PARTICIPANTS: We conducted a retrospective analysis on asthmatics from a secondary care centre in whom ICS were initiated/increased (n=101), stopped/decreased (n=60) or remained stable (n=63, used as a control group) between two visits with available sputum and blood cell counts...
November 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/29182620/broncho-vaxom-om-85-modulates-rhinovirus-docking-proteins-on-human-airway-epithelial-cells-via-erk1-2-mitogen-activated-protein-kinase-and-camp
#20
Michael Roth, Christian Pasquali, Daiana Stolz, Michael Tamm
BACKGROUND: Bronchial epithelial cells (BEC) are primary target for Rhinovirus infection through attaching to cell membrane proteins. OM-85, a bacterial extract, improves recovery of asthma and COPD patients after viral infections, but only part of the mechanism was addressed, by focusing on defined immune cells. OBJECTIVE: We therefore determined the effect of OM-85 on isolated primary human BEC of controls (n = 8), asthma patients (n = 10) and COPD patients (n = 9)...
2017: PloS One
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