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eosinophilic asthma

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https://www.readbyqxmd.com/read/29045956/-co-morbidity-of-vasovagal-syncope-and-postural-tachycardia-syndrome-with-allergic-diseases-in-children
#1
Y Liao, Q Y Zhang, H X Li, Y L Wang, P Liu, J B DU
OBJECTIVE: To explore the clinical characteristics of the co-morbidity of vasovagal syncope (VVS) and postural tachycardia syndrome (POTS) with allergic diseases in children. METHODS: A re-trospective analysis was launched to summarize the clinical data of children with VVS and POTS. They were divided into allergic group and non-allergic group according to the history of allergic diseases. The participants' clinical characteristics were compared between allergic group and non-allergic group using independent sample t test or rank sum test; composition comparisons were completed by Chi-square test...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29043835/we-have-to-learn-to-do-without-knowing-enough-anti-eosinophilic-treatments-for-severe-asthma
#2
Alberto Papi, Bianca Beghé, Leonardo M Fabbri
No abstract text is available yet for this article.
October 18, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29042937/inflammation-and-airway-remodeling-of-the-lung-in-guinea-pigs-with-allergic-rhinitis
#3
Zu-Yao Chen, Shou-Hong Zhou, Qiao-Feng Zhou, Hong-Bo Tang
Allergic rhinitis (AR) and asthma belong to the category of type I allergic diseases, whose pathological features are airway remodeling of the lung and allergic inflammation. The aim of the present study was to evaluate inflammation and remodeling of lung tissue in a guinea pig model of AR in order to confirm consistent pathological changes of upper and lower airways in AR. Male guinea pigs were randomly divided into an experimental and a control group (n=10 in each). The AR model was established by sensitization through intraperitoneal injection of ovalbumin for three weeks and bilateral nasal local excitation for twelve weeks...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29038613/nasal-cytology-as-a-marker-of-atopy-in-children
#4
Anna Mierzejewska, Anna Jung, Bolesław Kalicki
The aim of this study was to evaluate the cytological picture of nasal mucosa in children with atopic diseases and to determine the diagnostic value of the test for the diagnosis of atopic diseases. The study included 140 children from 4 months to 17 years old. Among children with a history of atopy, there were 30 children with atopic dermatitis, 30 children with asthma, and 46 children with allergic rhinitis. The control group consisted of 34 healthy children. The nasal scraping technique has been used to collect samples from the nasal cavity...
2017: Disease Markers
https://www.readbyqxmd.com/read/29037302/feno-levels-increase-with-degree-of-sensitisation-in-apprentices-at-risk-of-occupational-asthma
#5
P Wild, H Mével, E Penven, D Zmirou-Navier, A Barbaud, A Bohadana, C Paris
BACKGROUND: Atopy has emerged as a major determinant of airway inflammation. OBJECTIVE: To examine whether early markers of occupational asthma increase with degree of sensitisation. METHOD: This study was a prospective follow-up study of apprentices in baking, pastry-cooking and hairdressing during their 2-year apprenticeship. Four visits were conducted to administer a standardised questionnaire, a methacholine challenge test to assess bronchial hyperresponsiveness (BHR) and to measure fractional exhaled nitric oxide (FeNO)...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29037300/high-resolution-computed-tomography-findings-in-chronic-eosinophilic-vs-cryptogenic-organising-pneumonia
#6
P Mehrian, A Doroudinia, A Rashti, O Aloosh, A Dorudinia
BACKGROUND: The similar clinical and computed tomography (CT) characteristics of cryptogenic organising pneumonia (COP) and chronic eosinophilic pneumonia (CEP) make precise diagnosis challenging. OBJECTIVES: To help differentiate between COP and CEP using high-resolution CT (HRCT). DESIGN: Clinical data and HRCT images of COP and CEP patients referred to Masih Daneshvari Hospital, Tehran, Iran, from 2007 to 2015 were reviewed. Diagnosis of COP or CEP was confirmed using open lung biopsy or a combination of transbronchial biopsy, bronchoalveolar lavage fluid (BALF) analysis, peripheral eosinophilia and a favourable response to corticosteroids...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29037099/eosinophilic-otitis-media-diagnosis-using-flow-cytometric-immunophenotyping
#7
Issam Saliba, Musaed Alzahrani, Xiaoduan Weng, Alain Bestavros
OBJECTIVES: (1) To assess the ability of flow cytometric immunophenotyping to detect and quantitate eosinophils in patients with eosinophilic otitis media (EOM). (2) to evaluate the association of EOM to bronchial asthma. METHODS: Twenty-one patients with chronic otorrhea or middle ear effusion (MEE) were included in this prospective cohort study. Group I composed of 10 patients (14 ears) and associated to bronchial asthma. Group II included 11 patients (11 ears) without bronchial asthma...
October 16, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29036225/human-plasma-derived-c1-esterase-inhibitor-concentrate-has-limited-effect-on-house-dust-mite-induced-allergic-lung-inflammation-in-mice
#8
Ingrid Stroo, Jack Yang, Adam A Anas, J Daan de Boer, Gerard van Mierlo, Dorina Roem, Diana Wouters, Ruchira Engel, Joris J T H Roelofs, Cornelis van 't Veer, Tom van der Poll, Sacha Zeerleder
C1 esterase inhibitor (C1-INH) can inhibit multiple pathways (complement, contact-kinin, coagulation, and fibrinolysis) that are all implicated in the pathophysiology of asthma. We explored the effect of human plasma-derived C1-INH on allergic lung inflammation in a house dust mite (HDM) induced asthma mouse model by daily administration of C1-INH (15 U) during the challenge phase. NaCl and HDM exposed mice had comparable plasma C1-INH levels, while bronchoalveolar lavage fluid (BALF) levels were increased in HDM exposed mice coinciding with slightly reduced activation of complement (C5a)...
2017: PloS One
https://www.readbyqxmd.com/read/29036019/targeting-the-interleukin-4-and-interleukin-13-pathways-in-severe-asthma-current-knowledge-and-future-needs
#9
Amit D Parulekar, Christina C Kao, Zuzana Diamant, Nicola A Hanania
PURPOSE OF REVIEW: Severe asthma is a heterogeneous disease that can be classified into phenotypes and endotypes based upon clinical or biological characteristics. Interleukin (IL)-4 and IL-13 play a key role in type 2 (T2) asthma. This article reviews the signaling pathway of IL-4 and IL-13 and highlights its targeted therapy in severe asthma. RECENT FINDINGS: Several clinical trials of biologics targeting the IL-4/IL-13 pathway have recently been completed. In patients with severe, uncontrolled asthma, targeting IL-13 alone with biologics including lebrikizumab and tralokinumab has not shown consistent reduction in asthma exacerbations...
October 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29036018/precision-medicine-in-asthma-linking-phenotypes-to-targeted-treatments
#10
Kian F Chung
PURPOSE OF REVIEW: Asthma is a heterogeneous disease consisting of different phenotypes that are driven by different mechanistic pathways. The purpose of this review is to emphasize the important role of precision medicine in asthma management. RECENT FINDINGS: Despite asthma heterogeneity, the approach to management has been on the basis of disease severity, with the most severe patients reserved for the maximum treatments with corticosteroids and bronchodilators...
October 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29035604/biomarkers-for-differentiation-of-patients-with-asthma-and-chronic-obstructive-pulmonary-disease
#11
Shigeki Katoh, Masaki Ikeda, Ryo Shirai, Masaaki Abe, Yoshihiro Ohue, Yoshihiro Kobashi, Mikio Oka
OBJECTIVE: Asthma and chronic obstructive pulmonary disease (COPD) are airflow limitation diseases with similar clinical manifestations but different pathophysiologic mechanisms. To implement the appropriate treatment, it is important to distinguish between asthma and COPD which sometimes might result difficult in clinical practice. We evaluated biomarkers to distinguish between asthma and COPD. METHODS: Blood eosinophil counts and fractional exhaled nitric oxide (FeNO) levels were analyzed...
October 16, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29034234/interleukin-13-in-asthma-and-other-eosinophilic-disorders
#12
Emma Doran, Fang Cai, Cécile T J Holweg, Kit Wong, Jochen Brumm, Joseph R Arron
Asthma is characterized by episodic, reversible airflow obstruction associated with variable levels of inflammation. Over the past several decades, there has been an increasing appreciation that the clinical presentation of asthma comprises a diverse set of underlying pathologies. Rather than being viewed as a single disease entity, asthma is now thought of as a clinical syndrome with the involvement of multiple pathological mechanisms. While it is appreciated that eosinophilia is present in only a subset of patients, it remains a key feature of asthma and other eosinophilic disorders such as atopic dermatitis, eosinophilic esophagitis, and chronic rhinosinusitis with nasal polyps...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29033571/bronchial-thermoplasty-and-the-role-of-airway-smooth-muscle-are-we-on-the-right-direction
#13
REVIEW
Francesco Menzella, Mirco Lusuardi, Carla Galeone, Nicola Facciolongo
Asthma is characterized by inflammation of the airways that includes eosinophils, basal membrane thickening, epithelial sloughing, vascular changes, smooth muscle hypertrophy and hyperplasia, and mucous gland hyperplasia. Recently, there have been studies on the role of hypersensitivity and inflammation in asthma, but the role of bronchial smooth muscle remains unclear. Bronchial thermoplasty is an endoscopic procedure that is approved by the US Food and Drug Administration (FDA) for the treatment of severe refractory asthma, based on the local delivery of radio frequency at 65°C to the airways, with the aim of controlling bronchospasm through a reduction of airway smooth muscle (ASM)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29031617/steroid-sparing-effects-of-doxofylline
#14
Yanira Riffo-Vasquez, Radhakrishnan Venkatasamy, Clive P Page
Glucocorticosteroids are widely used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). However, there are growing concerns about the side effect profile of this class of drug, particularly an increased risk of pneumonia. Over the last two decades there have been many attempts to find drugs to allow a reduction of glucocorticosteroids, including xanthines such as theophylline. Use of xanthines has been shown to lead to a reduction in the requirement for glucocorticosteroids, although xanthines also have a narrow therapeutic window limiting their wider use...
October 12, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29031615/the-leukotriene-receptor-antagonist-pranlukast-attenuates-airway-remodeling-by-suppressing-tgf-%C3%AE-signaling
#15
Jung Hur, Ji Young Kang, Chin Kook Rhee, Young Kyoon Kim, Sook Young Lee
BACKGROUND/OBJECTIVE: Asthma is a chronic airway disease characterized by airway eosinophilic inflammation and remodeling, which are associated with a loss in lung function. Although both contribute significantly to asthma pathogenesis, mechanistic studies and drug discovery have focused on inflammatory targets. In this study, we investigated the effect of the leukotriene receptor antagonist pranlukast on allergic airway inflammation and remodeling in vivo and in vitro. METHOD: Four groups of female BALB/c mice (control; ovalbumin [OVA]-sensitized and -challenged; dimethyl sulfoxide [DMSO]-treated OVA; and pranlukast-treated OVA) were examined...
October 12, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29026294/comparison-of-the-peripheral-blood-eosinophil-count-using-near-patient-testing-and-standard-automated-laboratory-measurement-in-healthy-asthmatic-and-copd-subjects
#16
Kirsty Hambleton, Clare M Connolly, Catherine Borg, Joanne H Davies, Helen P Jeffers, Richard Ek Russell, Mona Bafadhel
Near-patient testing (NPT) allows clinical decisions to be made in a rapid and convenient manner and is often cost effective. In COPD the peripheral blood eosinophil count has been demonstrated to have utility in providing prognostic information and predicting response to treatment during an acute exacerbation. For this potential to be achieved having a reliable NPT of blood eosinophil count would be extremely useful. Therefore, we investigated the use of the HemoCue(®) WBC Diff System and evaluated its sensitivity and specificity in healthy, asthmatic and COPD subjects...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29026003/neutralization-of-either-il-17a-or-il-17f-is-sufficient-to-inhibit-house-dust-mite-induced-allergic-asthma-in-mice
#17
Pauline Chenuet, Louis Fauconnier, Fahima Madouri, Tiffany Marchiol, Nathalie Rouxel, Aurélie Ledru, Pascal Mauny, Rachel Lory, Catherine Uttenhove, Jacques van Snick, Yoichiro Iwakura, Franco di Padova, Valérie Quesniaux, Dieudonnée Togbe, Bernhard Ryffel
T helper (Th)17 immune response participates in allergic lung inflammation and asthma is reduced in the absence of interleukin (IL)-17 in mice. Since IL-17A and IL-17F are induced and bind the shared receptor IL-17RA, we asked whether both IL-17A and IL-17F contribute to house dust mite (HDM) induced asthma. We report that allergic lung inflammation is attenuated in absence of either IL-17A or IL-17F with reduced airway hyperreactivity, eosinophilic inflammation, goblet cell hyperplasia, cytokine and chemokine production as found in absence of IL-17RA...
October 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29024606/role-of-the-tslp-dc-ox40l-pathway-in-asthma-pathogenesis-and-airway-inflammation-in-mice
#18
Shuang Feng, Li Zhang, Xu-Hua Bian, Ying Luo, Guang-Hui Qin, Rui-Ming Shi
This study aims to explore the effect of the TSLP/DC/OX40L pathway in asthma pathogenesis and airway inflammation in mice. Sixty-five male BALF/c mice were divided into the control, asthma, IgG + asthma (IgG, 500 g/500 l, intratracheal injection of 50 l each time), LY294002 (OX40L inhibitor) + asthma (intratracheal injection of 2 mg/kg LY294002), and anti-TSLP + asthma (intratracheal injection of 500 ug/500 l TSLP antibody, 50 l each time) groups. ELISA was applied to measure the serum levels of IgE, ovalbumin (OVA)-sIgE, interleukin-4 (IL-4), IL-5, IL-13 and interferon-γ (IFN-γ), flow cytometry was employed to detect Treg cells and dendritic cell (DC) and lymphopoiesis...
October 12, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29022232/a-case-of-fatal-perimyocarditis-due-to-a-rare-disease
#19
Stefanie Plenzig, Sara Heinbuch, Hannelore Held, Marcel A Verhoff, Constantin Lux
Although myocarditis is caused by viral infections in about 50% of cases in European countries, various other causative agents are known. We report the case of a 51-year-old man who died several months after being diagnosed with asthma by his general practitioner. This diagnosis had been confirmed by a pulmonologist approximately 6 weeks before the man's death. To rule out the possibility of medical malpractice the prosecuting authority ordered a forensic autopsy. At autopsy macroscopic indicators for perimyocarditis and pneumonia were found...
October 11, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29018800/asthma-endotypes-and-an-overview-of-targeted-therapy-for-asthma
#20
REVIEW
Sarah Svenningsen, Parameswaran Nair
Guidelines for the management of severe asthma do not emphasize the measurement of the inflammatory component of airway disease to indicate appropriate treatments or to monitor response to treatment. Inflammation is a central component of asthma and contributes to symptoms, physiological, and structural abnormalities. It can be assessed by a number of endotyping strategies based on "omics" technology such as proteomics, transcriptomics, and metabolomics. It can also be assessed using simple cellular responses by quantitative cytometry in sputum...
2017: Frontiers in Medicine
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