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https://www.readbyqxmd.com/read/29220719/house-dust-mite-allergen-causes-certain-features-of-steroid-resistant-asthma-in-high-fat-fed-obese-mice
#1
Vijay Pal Singh, Ulaganathan Mabalirajan, Kunal Pratap, Devika Bahal, Deepanshu Maheswari, Atish Gheware, Aabha Bajaj, Lipsa Panda, Ashish Jaiswal, Arjun Ram, Anurag Agrawal
Obesity is a high risk factor for diseases such as cardiovascular, metabolic syndrome and asthma. Obese-asthma is another emerging phenotype in asthma which is typically refractive to steroid treatment due to its non-classical features such as non-eosinophilic cellular inflammation. The overall increased morbidity, mortality and economical burden in asthma is mainly due to steroid resistant asthma. In the present study, we used high fat diet induced obese mice which when sensitized with house dust mite (HDM) showed steroid resistant features...
December 4, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29214012/evidence-of-the-efficacy-and-safety-of-house-dust-mite-subcutaneous-immunotherapy-in-elderly-allergic-rhinitis-patients-a-randomized-double-blind-placebo-controlled-trial
#2
Andrzej Bożek, Krzysztof Kołodziejczyk, Renata Kozłowska, Giorgio Walter Canonica
Background: Allergen specific immunotherapy (AIT) in elderly patients is controversial, and there is still little evidence supporting the safety and efficacy of this treatment in this population. The study objective was to evaluate the safety and efficacy of AIT for house dust mite allergens in patients over 65 years of age with allergic rhinitis (AR) and a documented allergy to house dust mites. The primary endpoint was the change from baseline in the mean average adjusted symptom score (AAdSS) and the total combined rhinitis score (TCRS) difference in the least square means for the label compared to placebo...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/29210131/allergens-produce-serine-proteases-dependent-distinct-release-of-metabolite-damps-in-human-bronchial-epithelial-cells
#3
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/29209493/comparison-of-atopy-patch-testing-to-skin-prick-testing-for-diagnosing-mite-induced-atopic-dermatitis-a-systematic-review-and-meta-analysis
#4
REVIEW
Yumei Liu, Jianglong Peng, Ying Zhou, Yubao Cui
Background: Atopic dermatitis (AD) can occur after contact with aeroallergens like house dust mites, pollen, and animal dander. Despite its controversial diagnostic value, the atopy patch test (APT) has been used as an important tool in the diagnosis of AD caused by house dust mites. Here, we present a meta-analysis comparing APT to the common skin prick test (SPT) in the diagnosis of mite-induced AD. Methods: A structured search was performed using online databases and bibliographies published as of April 30, 2017...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/29205109/new-treatments-for-allergy-advances-in-peptide-immunotherapy
#5
David Calzada, Selene Baos, Lucia Cremades, Blanca Olombrada Cardaba
BACKGROUND: Nowadays, allergen-specific immunotherapy (AIT) is the only treatment able to modulate the course of allergic diseases. Although it has been applied for the last 100 years, treatment with whole allergen extracts is not without its drawbacks: AIT can cause local and systemic adverse events and may produce new IgE sensitization against other allergens present in the extract. Furthermore, the lengthy treatment duration (3-5 years), frequent administration, and high cost of treatment are other disadvantages...
November 30, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29204432/caspase-1-deficiency-reduces-eosinophilia-and-interleukin-33-in-an-asthma-exacerbation-model
#6
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/29189349/role-of-epigenetics-and-dna-damage-in-asthma
#7
Adil S Zahiruddin, J Andrew Grant, Sanjiv Sur
PURPOSE OF REVIEW: Although asthma is a common disease worldwide, its pathogenesis remains to be fully elucidated. There is increasing evidence of the interaction between epigenetics, DNA-damage, and environmental allergens in the development of asthma. In this review, we will focus on the role of epigenetics and DNA-damage in asthma. RECENT FINDINGS: There is growing evidence of environmental allergens, particularly house dust mite, stimulating oxidative DNA damage in airway epithelial cells...
November 16, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29187212/roles-of-bronchopulmonary-c-fibers-in-airway-hyperresponsiveness-and-airway-remodeling-induced-by-house-dust-mite
#8
Zhimei Yang, Jianguo Zhuang, Lei Zhao, Xiuping Gao, Zhengxiu Luo, Enmei Liu, Fadi Xu, Zhou Fu
BACKGROUND: Asthma is characterized by chronic airway inflammation, airway hyperresponsiveness (AHR), and airway remodeling. While exposure of house dust mites (HDM) is a common cause of asthma, the pathogenesis of the HDM-induced asthma is not fully understood. Bronchopulmonary C-fibers (PCFs) contribute to the neurogenic inflammation, viral infection induced-persistent AHR, and ovalbumin induced collagen deposition largely via releasing neuropeptides, such as substance P (SP). However, PCF roles in the pathogenesis of the HDM-induced asthma remain unexplored...
November 29, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29184554/il-17-and-tnf-%C3%AE-are-key-mediators-of-moraxella-catarrhalis-triggered-exacerbation-of-allergic-airway-inflammation
#9
Safa Alnahas, Stefanie Hagner, Hartmann Raifer, Ayse Kilic, Georg Gasteiger, Reinier Mutters, Anne Hellhund, Immo Prinz, Olaf Pinkenburg, Alexander Visekruna, Holger Garn, Ulrich Steinhoff
Alterations of the airway microbiome are often associated with pulmonary diseases. For example, detection of the bacterial pathogen Moraxella catarrhalis in the upper airways is linked with an increased risk to develop or exacerbate asthma. However, the mechanisms by which M. catarrhalis augments allergic airway inflammation (AAI) remain unclear. We here characterized the cellular and soluble mediators of M. catarrhalis triggered excacerbation of AAI in wt and IL-17 deficient as well as in animals treated with TNF-α and IL-6 neutralizing antibodies...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29182623/immunotherapeutic-efficacy-of-liposome-encapsulated-refined-allergen-vaccines-against-dermatophagoides-pteronyssinus-allergy
#10
Urai Chaisri, Anchalee Tungtrongchitr, Nitaya Indrawattana, Panisara Meechan, Watchara Phurttikul, Natt Tasaniyananda, Nawannaporn Saelim, Wanpen Chaicumpa, Nitat Sookrung
Allergen specific immunotherapy (AIT) can modulate the allergic response causing a long-term symptom subsidence/abolishment which leads to reduced drug use and prevention of new sensitization. AIT of house dust mite allergy (HDM) using the mite crude extract (CE) as the therapeutic agent is not only less effective than the AIT for many other allergens, but also frequently causes adverse effects during the treatment course. In this study, mouse model of Dermatophagoides pteronyssinus (Dp) allergy was invented for testing therapeutic efficacies of intranasally administered liposome (L) encapsulated vaccines made of single Dp major allergens (L-Der p 1, L-Der p 2), combined allergens (L-Der p 1 and Der p 2), and crude Dp extract (L-CE)...
2017: PloS One
https://www.readbyqxmd.com/read/29181675/toxicity-of-juniperus-oxycedrus-oil-constituents-and-related-compounds-and-the-efficacy-of-oil-spray-formulations-to-dermatophagoides-farinae-acari-pyroglyphidae
#11
Jun-Ran Kim, Haribalan Perumalsamy, He Min Shin, Sang-Guei Lee, Young-Joon Ahn
The American house dust mite (AHDM), Dermatophagoides farinae Hughes (Acari: Pyroglyphidae), is recognized as an important source of allergens in the domestic environment. This study was conducted to determine whether 19 constituents from essential oil of cade, Juniperus oxycedrus L. (Cupressaceae), eight structurally related compounds, and another 16 previously known cade oil constituents were toxic for adult AHDMs and to determine the route of acaricidal action of the test compounds, as well as to assess the control efficacy of four experimental spray formulations containing the oil (10-40 mg/L sprays)...
November 27, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29178674/a-retrospective-study-of-clinical-response-predictors-in-subcutaneous-allergen-immunotherapy-with-house-dust-mites-for-allergic-rhinitis
#12
Ji Ho Lee, Su Chin Kim, Hyunna Choi, Chang Gyu Jung, Ga Young Ban, Yoo Seob Shin, Dong Ho Nahm, Hae Sim Park, Young Min Ye
PURPOSE: House dust mites (HDM) are major allergens that cause allergic rhinitis (AR). Allergen-specific subcutaneous immunotherapy (SCIT) has been shown to be clinically beneficial in many clinical trials. Such trials, however, are not reflective of all patient populations. The aim of this study was to describe the efficacy and safety of SCIT in routine clinical practice in Korean adults with AR sensitized to HDM. METHODS: We reviewed medical records of 304 patients with AR treated at an allergy clinic of a tertiary hospital using SCIT with aluminum hydroxide-adsorbed allergen extract targeting HDM alone or with pollens for at least 1 year from 2000 to 2012...
January 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29171863/schistosoma-mansoni-specific-immune-responses-and-allergy-in-uganda
#13
Gyaviira Nkurunungi, Joyce Kabagenyi, Margaret Nampijja, Richard E Sanya, Bridgious Walusimbi, Jacent Nassuuna, Emily L Webb, Alison M Elliott
Low allergy-related disease (ARD) prevalence in low-income countries may be partly attributed to helminth infections. In the Schistosoma mansoni (Sm)-endemic Lake Victoria islands (Uganda), we recently observed positive helminth-allergy associations, despite low ARD prevalence. To understand how Sm-induced cytokine and antibody profiles might influence allergic response profiles in this population, we assessed Schistosoma worm (SWA)- and egg antigen (SEA)-specific Th1 (IFN-γ), Th2 (IL-5, IL-13) and regulatory (IL-10) cytokine profiles (n=407), and total (n=471), SWA-, SEA- and allergen (house dust mite [HDM] and cockroach)-specific (as)IgE and IgG4 profiles (n=2117) by ELISA...
November 24, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/29169170/mite-induced-asthma-and-ige-levels-to-shrimp-mite-tropomyosin-arginine-kinase-and-der-p-10-are-the-most-relevant-risk-factors-for-challenge-proven-shrimp-allergy
#14
Laura Farioli, Laura Michelina Losappio, Maria Gabriella Giuffrida, Valerio Pravettoni, Gianluigi Micarelli, Michele Nichelatti, Joseph Scibilia, Corrado Mirone, Laura Cavallarin, Cristina Lamberti, Luca Giuseppe Balossi, Elide Anna Pastorello
BACKGROUND: Shrimp sensitization is common in the general population, but the presence of symptoms is only moderately related to sensitization. A point still at issue is which in vivo and/or in vitro tests (food challenge, component-resolved diagnosis, house dust mite [HDM] sensitization) can help in distinguishing shrimp-allergic subjects from subjects that are sensitized but tolerant. METHODS: The aim of this study was to evaluate the role of IgE to the different shrimp and mite allergens in distinguishing shrimp challenge-positive from challenge-negative patients...
November 24, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29168570/specific-immunotherapy-in-lar-a-randomized-double-blind-placebo-controlled-trial-with-phleum-pratense-subcutaneous-allergen-immunotherapy
#15
Carmen Rondón, Natalia Blanca-López, Paloma Campo, Cristobalina Mayorga, Raquel Jurado-Escobar, Maria J Torres, Gabriela Canto, Miguel Blanca
BACKGROUND: Allergen immunotherapy has been shown to be an effective treatment for local allergic rhinitis (LAR) to house dust mites. Studies with pollen allergen immunotherapy are limited to observational studies. The aim of this study was to evaluate the clinical efficacy and safety of Phleum pratense subcutaneous immunotherapy (Phl-SCIT) in LAR. METHODS: In a randomized double-blind placebo-controlled study, 56 patients with moderate-severe LAR to grass pollen received Phl-SCIT with a depigmented-polymerized pollen vaccine or placebo for the first year, and Phl-SCIT the second one...
November 23, 2017: Allergy
https://www.readbyqxmd.com/read/29158683/animal-models-of-asthma-utility-and-limitations
#16
REVIEW
Marcelo Vivolo Aun, Rafael Bonamichi-Santos, Fernanda Magalhães Arantes-Costa, Jorge Kalil, Pedro Giavina-Bianchi
Clinical studies in asthma are not able to clear up all aspects of disease pathophysiology. Animal models have been developed to better understand these mechanisms and to evaluate both safety and efficacy of therapies before starting clinical trials. Several species of animals have been used in experimental models of asthma, such as Drosophila, rats, guinea pigs, cats, dogs, pigs, primates and equines. However, the most common species studied in the last two decades is mice, particularly BALB/c. Animal models of asthma try to mimic the pathophysiology of human disease...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29158156/anti-allergic-effects-of-sesquiterpene-lactones-from-saussurea-costus-falc-lipsch-determined-using-in-vivo-and-in-vitro-experiments
#17
Bo-Kyung Lee, Soo-Jin Park, So-Yeon Nam, Saeromi Kang, Jin Hwang, Seung-Jin Lee, Dong-Soon Im
ETHNOPHARMACOLOGICAL RELEVANCE: Saussurea costus (Falc.) Lipsch. root has been used in Asian traditional medicine for the treatment of asthma, rheumatism, and other conditions. S. costus extracts were shown to alleviate house dust mite-induced atopic-like dermatitis in Nc/Nga mice; besides, sesquiterpene lactones were isolated from S. costus extracts. AIMS OF THE STUDY: We aimed to investigate the effects of sesquiterpene lactones (alantolactone, costunolide, and dehydrocostuslactone) in allergic asthma using female Balb/c mice and rat RBL-2H3 mast cells...
November 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29155102/targeting-of-rac1-prevents-bronchoconstriction-and-airway-hyperresponsiveness
#18
Gwennan André-Grégoire, Florian Dilasser, Julie Chesné, Faouzi Braza, Antoine Magnan, Gervaise Loirand, Vincent Sauzeau
BACKGROUND: The molecular mechanisms responsible for airway smooth muscle cells (aSMC) contraction and proliferation in airway hyperresponsiveness (AHR) associated with asthma are still largely unknown. The small GTPases of the Rho family (RhoA, Rac1 and Cdc42) play a central role in SMC functions including migration, proliferation and contraction. OBJECTIVE: The objective of this study is to identify the role of Rac1 in aSMC contraction and to investigate its involvement in AHR associated with allergic asthma...
November 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29149780/interleukin-37-relieves-allergic-inflammation-in-a-house-dust-mite-allergic-rhinitis-murine-model
#19
Do Hyun Kim, Si Won Kim, Soo Whan Kim, Jun-Myung Kang
The purpose of this study was to investigate the effects of interleukin-37 (IL-37) on a Dermatophagoides farinae (Der f)-induced murine model of allergic rhinitis (AR). BALB/c mice, except the control groups, were sensitized intraperitoneally and challenged intranasally with Der f (Der f group). The IL-37 and IL-37+anti-CD25 groups were administered IL-37 intranasally. The IL-37+anti-CD25 groups were administered anti-CD25 monoclonal antibody intraperitoneally before challenge. Allergic symptoms and the average eosinophil number were counted...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29148358/all-change%C3%A2-transcanal-endoscopic-ear-surgery-and-house-dust-mite-immunotherapy-for-allergic-rhinitis
#20
Jonathan Fishman, Robin Youngs, Edward Fisher, Musheer Hussain
No abstract text is available yet for this article.
November 2017: Journal of Laryngology and Otology
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