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Treatment Resistent Asthma

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https://www.readbyqxmd.com/read/29130617/dendritic-cell-phenotype-in-severe-asthma-reflects-clinical-responsiveness-to-glucocorticoids
#1
Emma S Chambers, Alexandra M Nanzer, Paul E Pfeffer, David F Richards, Adrian R Martineau, Christopher J Griffiths, Christopher J Corrigan, Catherine M Hawrylowicz
BACKGROUND: Subsets of patients with severe asthma remain symptomatic despite prolonged, high dosage glucocorticoid therapy. We hypothesised that the clinical glucocorticoid sensitivity of these asthmatics is reflected in differences in peripheral blood dendritic cell subsets. OBJECTIVE: To compare peripheral blood leukocyte populations using flow cytometry at baseline and after 2 weeks of systemic glucocorticoid (steroid) treatment to identify immunological differences between steroid sensitive (SS) and steroid resistant (SR) asthmatics...
November 11, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29124506/heart-rate-variability-biofeedback-does-not-substitute-for-asthma-steroid-controller-medication
#2
Paul M Lehrer, Charles G Irvin, Shou-En Lu, Anthony Scardella, Beatrix Roehmheld-Hamm, Milisyaris Aviles-Velez, Jessica Graves, Evgeny G Vaschillo, Bronya Vaschillo, Flavia Hoyte, Harold Nelson, Frederick S Wamboldt
Despite previous findings of therapeutic effects for heart rate variability biofeedback (HRVB) on asthma, it is not known whether HRVB can substitute either for controller or rescue medication, or whether it affects airway inflammation. Sixty-eight paid volunteer steroid naïve study participants with mild or moderate asthma were given 3 months of HRVB or a comparison condition consisting of EEG alpha biofeedback with relaxing music and relaxed paced breathing (EEG+), in a two-center trial. All participants received a month of intensive asthma education prior to randomization...
November 9, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/29116046/radon-enriched-hot-spring-water-therapy-for-upper-and-lower-respiratory-tract-inflammation
#3
Desiderio Passali, Giacomo Gabelli, Giulio Cesare Passali, Ralph Mösges, Luisa Maria Bellussi
Background Radon-222-enriched hot spring therapy, which is characterized by a safe level of radioactivity, is used for the treatment of rheumatic disorders, and its efficacy has already been studied in several clinical trials. Radon-water inhalation therapy for the treatment of upper and lower airway inflammatory diseases is used in many hot springs centers. However, its application has not been reviewed to date. Methods We systematically searched the PubMed and Scopus databases for clinical trials published in the last 20 years in which objective parameters of upper and lower airway function had been tested before and after radon-enriched inhalation treatment...
August 31, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29106996/chronic-rhinosinusitis-endotypes-biomarkers-and-treatment-response
#4
Jose Gurrola, Larry Borish
It is increasingly recognized that chronic rhinosinusitis (CRS) comprises a spectrum of different diseases with distinct clinical presentations and pathogenic mechanisms. Defining the distinct phenotypes and endotypes of CRS impacts prognosis and most importantly is necessary as the basis for making therapeutic decisions. The need for individualized defining of pathogenic mechanisms prior to initiating therapy extends to virtually all therapeutic considerations. This is clearly crucial with antibiotics where, barring an influence from their off-target anti-inflammatory pharmacological effects, an understanding of the role of individual biome predicts likelihood of therapeutic benefit...
October 26, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29073215/toxoplasma-gondii-serine-protease-inhibitor-1-a-new-adjuvant-candidate-for-asthma-therapy
#5
Ariadna S Soto, Ignacio M Fenoy, Vanesa R Sanchez, Florencia March, Matías D Perrone Sibilia, María de Los Angeles Aldirico, Mariano S Picchio, Nadia Arcon, Patricio L Acosta, Fernando P Polack, Valentina Martin, Alejandra Goldman
Serine-proteases are important players in the pathogenesis of asthma, promoting inflammation and tissue remodeling. It's also known that many serine protease inhibitors display immunomodulatory properties. TgPI-1 is a Toxoplasma gondii protein that exhibits broad spectrum inhibitory activity against serine proteases. In view of the increased prevalence of atopic disorders and the need to develop new treatment strategies we sought to investigate the potential of TgPI-1 for treating respiratory allergies. For this purpose, we developed a therapeutic experimental model...
2017: PloS One
https://www.readbyqxmd.com/read/29071965/-inhibitory-effect-of-acupoint-application-on-airway-remodeling-and-expression-of-tgf-%C3%AE-1-smad-3-in-the-lung-tissue-of-chronic-asthma-mice
#6
Cheng-Yong Liu, Shan Qin, Lan-Ying Liu, Ya-Min He, He-Sheng Wang, Wen-Zhong Wu, Dong Chen, Cong Zhang
OBJECTIVE: To observe the effect of acupoint application on transforming growth factor (TGF)-β 1/Smad 3 signaling pathway, so as to reveal its mechanism underlying improvement of airway remodeling in chronic asthma mice. METHODS: BALB/c mice were randomly divided into normal group,model group,sham acupoint application group (sham group),acupoint application group, and dexamethasone group (n=8 in each group). The chronic asthma model was established by intraperitoneal injection of ovalbumin sensitization...
April 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29027379/impact-of-omalizumab-in-children-from-a-middle-income-country-with-severe-therapy-resistant-asthma-a-real-life-study
#7
Paulo M Pitrez, Rodrigo G de Souza, Cristian Roncada, Joao P Heinzmann-Filho, Giovana Santos, Leonardo A Pinto, Marcus H Jones, Renato T Stein
BACKGROUND: Severe asthma in children is a global health problem. Severe therapy-resistant asthma (STRA) in children is a major clinical challenge due to persistent symptoms despite high doses of corticosteroids and results in high public health costs. Omalizumab (anti-IgE monoclonal antibody) has been described as an effective add-on therapy in these patients. The characteristics of children with STRA from low- and middle-income countries have scarcely been reported, and no real-life study has been published on the effects of omalizumab in this group of patients...
November 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28945561/-duox1-a-future-for-the-treatment-of-resistant-allergic-asthma
#8
Andréa Cottignies-Calamarte, Andrés Becker Arrieta, Srarkha Ibtisame, Corinne Dupuy
No abstract text is available yet for this article.
August 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28911045/azole-resistant-aspergillosis-epidemiology-molecular-mechanisms-and-treatment
#9
REVIEW
Anuradha Chowdhary, Cheshta Sharma, Jacques F Meis
Aspergillus fumigatus remains the most common species in all pulmonary syndromes, followed by Aspergillus flavus which is a common cause of allergic rhinosinusitis, postoperative aspergillosis and fungal keratitis. The manifestations of Aspergillus infections include invasive aspergillosis, chronic pulmonary aspergillosis and bronchitis. Allergic manifestations of inhaled Aspergillus include allergic bronchopulmonary aspergillosis and severe asthma with fungal sensitization. Triazoles are the mainstay of therapy against Aspergillus infections for treatment and prophylaxis...
August 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28891139/helicobacter-pylori-infection-in-children
#10
REVIEW
Nicolas Kalach, Patrick Bontems, Josette Raymond
Helicobacter pylori infection in children differs from that in adults, from the point of view of epidemiology, host response, clinical features, related diseases, and diagnosis, as well as treatment strategies. The prevalence of H. pylori infection, in both children and adults, is decreasing in the Western World as well as in some developing countries, which contrasts with the increase in childhood asthma and allergic diseases. Recurrent abdominal pain is not specific during H. pylori infection in children...
September 2017: Helicobacter
https://www.readbyqxmd.com/read/28884988/assessment-of-allergen-specific-ige-by-immunoblotting-method-in-atopic-dermatitis
#11
M R Bonyadi, D Hassanzadeh, N Seyfizadeh, S Borzoueisileh
Background and Objectives. Stimulating the immune system by exposure to various allergens to produce specific IgE has a significant role in the pathogenesis of atopic dermatitis. Identifying disease-causing allergens, prevention of exposure to those allergens, and immunotherapy will play an important role in the treatment of Atopic Disease. The purpose of this study was to determine the common allergens of northwest of Iran in patients with atopic dermatitis that are resistant to treatment. Materials and methods...
September 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28880396/drug-repurposing-to-treat-asthma-and-allergic-disorders-progress-and-prospects
#12
REVIEW
Robert L Kruse, Kristine Vanijcharoenkarn
Allergy and atopic asthma have continued to become more prevalent in modern society despite the advent of new treatments, representing a major global health problem. Common medications such as antihistamines and steroids may have undesirable long-term side effects and lack efficacy in some resistant patients. Biologic medications are increasingly given to treat resistant patients, but they can represent high costs, complex dosing and management, and are not widely available around the world. The field needs new, cheap and convenient treatment options in order to bring better symptom relief to patients...
September 7, 2017: Allergy
https://www.readbyqxmd.com/read/28851976/linoleic-acid-metabolite-leads-to-steroid-resistant-asthma-features-partially-through-nf-%C3%AE%C2%BAb
#13
Lipsa Panda, Atish Gheware, Rakhshinda Rehman, Manish K Yadav, B S Jayaraj, SubbaRao V Madhunapantula, Padukudru Anand Mahesh, Balaram Ghosh, Anurag Agrawal, Ulaganathan Mabalirajan
Studies have highlighted the role of nutritional and metabolic modulators in asthma pathobiology. Steroid resistance is an important clinical problem in asthma but lacks good experimental models. Linoleic acid, a polyunsaturated fatty acid, has been linked to asthma and glucocorticoid sensitivity. Its 12/15-lipoxygenase metabolite, 13-S-hydroxyoctadecadienoic acid (HODE) induces mitochondrial dysfunction, with severe airway obstruction and neutrophilic airway inflammation. Here we show that HODE administration leads to steroid unresponsiveness in an otherwise steroid responsive model of allergic airway inflammation (AAI)...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846444/validity-of-fractional-exhaled-nitric-oxide-and-small-airway-function-indices-in-diagnosis-of-cough-variant-asthma
#14
Chen Feng-Jia, Huang Xin-Yan, Lin Geng-Peng, Liu Yang-Li, Xie Can-Mao
OBJECTIVE: Fractional exhaled nitric oxide (FeNO) is a non-invasive method used to reveal the eosinophilic inflammation of airway and to diagnose and manage asthma. The use of FeNO measurement or its combination with the small airway function in differentiating CVA patients from chronic cough patients is unexplored. METHODS: From December 2012 to June 2016, patients with chronic non-productive cough for more than 8 weeks based on physician's opinion were subjected to FeNO, pulmonary function, and bronchial hyperresponsiveness (BHR) tests...
August 28, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28826280/severe-therapy-resistant-asthma-in-children-translational-approaches-to-uncover-sub-phenotypes
#15
Aldara Martin Alonso, Valentina Fainardi, Sejal Saglani
Paediatric severe therapy resistant asthma (STRA) affects a very small proportion of all children with asthma, but results in significant morbidity, has a high risk of mortality and utilises approximately half of all healthcare resources for childhood asthma. children with STRA need add-on 'beyond guidelines' therapies because of poor control despite maximal conventional treatments and optimisation of basic asthma management. however, STRA is heterogeneous with marked phenotypic variation between patients and mechanisms from adult severe asthma cannot be extrapolated to children...
August 21, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28782595/dhea-supplementation-to-dexamethasone-treated-rabbits-alleviates-oxidative-stress-in-kidney-cortex-and-attenuates-albuminuria
#16
Anna Kiersztan, Nina Trojan, Aleksandra Tempes, Paweł Nalepa, Joanna Sitek, Katarzyna Winiarska, Michał Usarek
Our recent study has shown that dehydroepiandrosterone (DHEA) administered to rabbits partially ameliorated several dexamethasone (dexP) effects on hepatic and renal gluconeogenesis, insulin resistance and plasma lipid disorders. In the current investigation, we present the data on DHEA protective action against dexP-induced oxidative stress and albuminuria in rabbits. Four groups of adult male rabbits were used in the in vivo experiment: (1) control, (2) dexP-treated, (3) DHEA-treated and (4) both dexP- and DHEA-treated...
November 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28774699/pulmonary-and-sinus-fungal-diseases-in-non-immunocompromised-patients
#17
REVIEW
David W Denning, Arunaloke Chakrabarti
The human respiratory tract is exposed daily to airborne fungi, fungal enzymes, and secondary metabolites. The endemic fungi Histoplasma capsulatum, Coccidioides spp, Blastomyces dermatitidis, and Paracoccidioides brasiliensis, and occasionally Aspergillus fumigatus, are primary pulmonary pathogens of otherwise healthy people. Such infections resolve in most people, and only a few infections lead to disease. However, many fungi are directly allergenic by colonising the respiratory tract or indirectly through contact with cell wall constituents and proteases, causing or exacerbating allergic disease...
November 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28755856/th9-cells-induce-steroid-resistant-bronchial-hyperresponsiveness-in-mice
#18
Mayumi Saeki, Osamu Kaminuma, Tomoe Nishimura, Noriko Kitamura, Akio Mori, Takachika Hiroi
BACKGROUND: Reduced responsiveness to corticosteroid therapy is a major problem for patients with severe asthma. Although Th9 cells, along with Th2 cells, facilitate antigen-induced airway eosinophilia and bronchial hyperresponsiveness (BHR), the sensitivity of Th9 cell-mediated responses to steroid therapy remains unknown. In this study, we investigated the effect of dexamethasone (Dex) on antigen-induced airway inflammation in Th9 cell-transferred mice. METHODS: Ovalbumin (OVA)-specific Th2 and Th9 cells were polarized from the CD4(+) T cells of DO11...
July 26, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28746467/tangeretin-has-anti-asthmatic-effects-via-regulating-pi3k-and-notch-signaling-and-modulating-th1-th2-th17-cytokine-balance-in-neonatal-asthmatic-mice
#19
L-L Liu, F-H Li, Y Zhang, X-F Zhang, J Yang
Asthma is a chronic allergic disease characterized by airway inflammation, airway hyper-responsiveness (AHR), and mucus hypersecretion. T-lymphocytes are involved in the pathogenesis of asthma, mediating airway inflammatory reactions by secreting cytokines. The phosphoinositide 3-kinase (PI3K) and Notch signaling pathways are associated with T cell signaling, proliferation, and differentiation, and are important in the progression of asthma. Thus, compounds that can modulate T cell proliferation and function may be of clinical value...
July 20, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28727997/therapeutic-intranasal-instillation-of-allergen-loaded-microbubbles-suppresses-experimental-allergic-asthma-in-mice
#20
Blaise Corthésy, Gilles Bioley
Despite proven efficiency, subcutaneous immunotherapy for aeroallergens is impaired by the duration of the protocol, the repeated injections and potential side-effects associated with the doses of allergen administered. Intranasal delivery of immunotherapeutic agents may overcome several of these drawbacks, provided that an efficient allergen delivery vehicle can be identified. This study evaluates whether intranasally delivered gas-filled microbubble (MB)-associated ovalbumin (OVA), used as a model allergen, can serve as a therapeutic treatment in a mouse model of established allergic asthma...
October 2017: Biomaterials
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