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https://www.readbyqxmd.com/read/29319884/similar-localization-of-conformational-ige-epitopes-on-the-house-dust-mite-allergens-der-p-5-and-der-p-21-despite-limited-ige-cross-reactivity
#1
M Curin, T Garmatiuk, Y Resch-Marat, K W Chen, G Hofer, K Fauland, W Keller, W Hemmer, S Vrtala, M Focke-Tejkl, R Valenta
BACKGROUND: Due to high IgE recognition frequency and high allergenic activity, Der p 5 and Der p 21 are clinically important house dust mite (HDM) allergens. The objective of this study was to characterise the immunodominant IgE epitopes of Der p 5 and Der p 21 responsible for their high allergenic activity. METHODS: A panel of 12 overlapping peptides spanning the Der p 5 and Der p 21 sequence were synthesized to search for sequential IgE epitopes by direct testing for allergic patients ' IgE reactivity...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29319193/house-dust-mite-impairs-antiviral-response-in-asthma-exacerbation-models-through-its-effects-on-tlr3
#2
Hamid Akbarshahi, Mandy Menzel, Sangeetha Ramu, Irma Mahmutovic Persson, Leif Bjermer, Lena Uller
BACKGROUND: Impaired antiviral interferon expression may be involved in asthma exacerbations commonly caused by rhinovirus infections. Allergy is a known risk factor for viral-induced asthma exacerbation, but little is known whether allergens may affect interferon responses. OBJECTIVE: Our hypothesis is that house dust mite (HDM) impairs viral stimulus-induced antiviral signalling. METHODS: Experimental asthma exacerbations were produced in vitro in human bronchial epithelial cells (HBECs) and in mice by using sequential challenges with HDM and a viral infection mimic, Poly(I:C)...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29315632/food-allergen-sensitized-ccr9-lymphocytes-enhance-airways-allergic-inflammation-in-mice
#3
Laure Castan, Marie-Aude Cheminant, Luc Colas, Sophie Brouard, Antoine Magnan, Grégory Bouchaud
BACKGROUND: The mechanisms of the atopic march, characterized by a natural progression from food and cutaneous allergies to rhinitis and asthma, are still unknown. However, as several organs can be involved, chemokines and their receptors might be implicated in this process and may be instrumental factors. OBJECTIVES: We hypothesized that the T-cell gut-homing receptor CCR9 could be implicated in the evolution of allergic diseases. METHODS: We characterized the immune response and the role of CCR9 in a murine model combining food allergy to wheat gliadin and a model of acute airways inflammation in response to house dust mite...
January 9, 2018: Allergy
https://www.readbyqxmd.com/read/29310846/inhalant-allergen-sensitization-is-an-independent-risk-factor-for-the-development-of-angioedema
#4
Jacob E Kuperstock, Nicholas Pritchard, Michal Horný, Christopher C Xiao, Christopher D Brook, Michael P Platt
BACKGROUND/OBJECTIVE: The etiology and risk factors for angioedema remain poorly understood with causative triggers often going undiagnosed despite repeated reactions. The purpose of this study was to determine the relationship between inhalant allergen sensitization and angioedema. METHODS: A retrospective review of patients who had in vitro inhalant allergy testing from 2006 to 2010 was performed. Patients with a diagnosis of angioedema who underwent inhalant allergy testing were identified...
December 27, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29310755/home-environmental-interventions-for-house-dust-mite
#5
Jeffrey M Wilson, Thomas A E Platts-Mills
It has been 50 years since the dust mite was first appreciated to be a major source of allergen in house dust, and by extension a key trigger of allergic respiratory disease. Since that time a number of protein allergens have been identified and characterized, mainly from mite feces, and standardized mite extracts and IgE assays have been developed. Insights into the lifecycle of dust mites and aspects of mite allergen biology have shed light on the mechanisms that lead to respiratory disease and to the development of interventions that can minimize dust mite allergen exposure...
January 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29301162/milbenallergie-im-hno-bereich-bedeutung-diagnostik-und-therapieoptionen
#6
Ludger Klimek, Moritz Gröger, Sven Becker
Allergic rhinitis (AR) affects ca. 20% of the population. Approximately one third of patients affected by AR are suffering from perennial rhinitis due to mite allergy. Perennial rhinitis is the form of the disease that is most frequently associated with other allergy-related comorbidities such as asthma and atopic dermatitis, sleep disorders, chronic sinusitis, eustachian tube dysfunction and others.The often non-specific symptoms and the insidious course may lead to misinterpretations in diagnosing the disease...
January 2018: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/29290503/-evaluation-of-sensitization-to-der-p-1-and-der-p-2-in-a-pediatric-population-of-the-north-of-portugal
#7
Sara Peixoto, Joana Soares, Tânia Monteiro, Marisa Carvalho, Marinela Santos, Carla Simões, Márcia Quaresma
INTRODUCTION: In Portugal, data on the role of Der p 1 and Der p 2 in patients with house dust mite (HDM) allergy are scarce. Allergen-specific immunotherapy (sIT) is the only treatment that improves symptoms, reduces the need for pharmacological therapy and modifies the natural history of the disease. With this study, the authors aim to understand the local epidemiology and to clarify if the molecular assay of major allergens is advantageous in deciding and/or modifying the decision to initiate sIT in children with clinical indication which are sensitized to Dermatophagoides pteronyssinus...
December 28, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/29279260/scabies-crusted-norwegian-scabies-and-the-diagnosis-of-mite-sensitisation
#8
REVIEW
M Sánchez-Borges, L González-Aveledo, A Capriles-Hulett, F Caballero-Fonseca
Scabies is observed with relatively high frequency in Allergy and Dermatology clinics in developing countries where poor sanitary conditions are prevalent and increasingly in some areas of the world with increased immigrant populations. Since the immunological response to scabies mites includes the production of IgE class antibodies to Sarcoptes scabiei allergens which cross-react with Dermatophagoides major allergens Der p 1 and Der p 2, positive immediate-type skin tests to house dust mite extracts should be interpreted cautiously...
December 23, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/29274211/sensitization-to-the-storage-mites-lepidoglyphus-destructor-and-tyrophagus-putrescentiae-acari-sarcoptiformes-astigmatina-in-a-suburban-population-in-southern-poland
#9
Justyna Jakubas-Zawalska, Marek Asman, Krzysztof Solarz
Mite infestation of stored products is a serious threat to food safety and public health. These stored product mites are not only serious pests of stored food but also cause allergies in humans. Thirty serum samples from patients living in suburban areas of Upper Silesia (South Poland) were tested for sensitization to two species of storage mites: Lepidoglyphus destructor [LD] and Tyrophagus putrescentiae [TP]. Patient antibodies against particular antigens were identified using anti-human anti-IgE monoclonal antibodies...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/29240264/longitudinal-vitamin-d-deficiency-is-inversely-related-to-mite-sensitization-in-early-childhood
#10
Chih-Yung Chiu, Kuan-Wen Su, Ming-Han Tsai, Man-Chin Hua, Sui-Ling Liao, Shen-Hao Lai, Li-Chen Chen, Tsung-Chieh Yao, Kuo-Wei Yeh, Jing-Long Huang
BACKGROUND: There are few studies addressing the longitudinal analysis of vitamin D deficiency and its impact to the development of atopic diseases in early childhood. METHODS: We investigated 155 children who regularly followed up at our clinic for 5 years as subjects enrolled in a birth cohort study. The pattern of vitamin D levels from birth to 5 years of age was clustered using K-means method in R software. Absolute eosinophil count (AEC), total serum and specific immunoglobulin E antibodies against food (egg white, milk, and wheat) and inhalant allergens (D...
December 14, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29239851/association-between-allergic-diseases-allergic-sensitization-and-attention-deficit-hyperactivity-disorder-in-children-a-large-scale-population-based-study
#11
Chia-Feng Yang, Chen-Chang Yang, I-Jen Wang
BACKGROUND: Increasing prevalence of allergic diseases has been matched by parallel trends in attention-deficit/hyperactivity disorder (ADHD). However, previous studies concerning the association between ADHD and allergic diseases have been inconsistent. Moreover, it is not clear whether this association is modified by allergic sensitization status. Therefore, we evaluated the association between allergic diseases, allergic sensitization, and ADHD in children. METHODS: We conducted a large-scale cross-sectional, population-based survey to investigate the relationship between allergic diseases, allergic sensitization, and ADHD...
November 24, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29233461/long-term-safety-of-subcutaneous-immunotherapy-with-to-204-in-japanese-patients-with-house-dust-mite-induced-allergic-rhinitis-and-allergic-bronchial-asthma-multicenter-open-label-clinical-trial
#12
Takao Fujisawa, Terufumi Shimoda, Keisuke Masuyama, Kimihiro Okubo, Kohei Honda, Mitsuhiro Okano, Toshio Katsunuma, Atsuo Urisu, Yasuto Kondo, Hiroshi Odajima, Kazuyuki Kurihara, Makoto Nagata, Masami Taniguchi, Shoichiro Taniuchi, Satoru Doi, Tomoshige Matsumoto, Shoji Hashimoto, Akihiko Tanaka, Kensuke Natsui, Nahoko Abe, Hideki Ozaki
BACKGROUND: To evaluate the long-term safety of subcutaneous immunotherapy with TO-204, a standardized house dust mite (HDM) allergen extracts, we conducted a multicenter, open label clinical trial. METHODS: Japanese patients aged 5-65 years were eligible for the study, if they had HDM-induced allergic rhinitis (AR), allergic bronchial asthma (BA), or both. TO-204 was administered in a dose titration scheme, and the maintenance dose was determined according to the predefined criteria...
December 7, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29221963/detection-of-ige-reactivity-to-a-handful-of-allergen-molecules-in-early-childhood-predicts-respiratory-allergy-in-adolescence
#13
Magnus Wickman, Christian Lupinek, Niklas Andersson, Danielle Belgrave, Anna Asarnoj, Marta Benet, Mariona Pinart, Sandra Wieser, Judith Garcia-Aymerich, Alexandra Baar, Göran Pershagen, Angela Simpson, Inger Kull, Anna Bergström, Erik Melén, Carl Hamsten, Josep M Antó, Jean Bousquet, Adnan Custovic, Rudolf Valenta, Marianne van Hage
BACKGROUND: Sensitization in early childhood may precede respiratory allergy in adolescence. METHODS: IgE reactivity against 132 allergen molecules was evaluated using the MeDALL microarray in sera obtained from a random sample of 786 children at the age of 4, 8 and 16years in a population based birth cohort (BAMSE). Symptoms were analyzed by questionnaire at ages 4, 8 and 16years. Clinically and independent relevant allergen molecules accounting for ≥90% of IgE reactivities in sensitized individuals and at all time-points were identified as risk molecules and used to predict respiratory allergy...
December 2017: EBioMedicine
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
#14
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/29205109/new-treatments-for-allergy-advances-in-peptide-immunotherapy
#15
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/29193290/the-1st-step-essential-for-allergen-specific-ige-antibody-production-upon-the-2nd-step-induction-of-non-specific-ige-small-b-cells-containing-secondly-sensitized-allergen-specific-ones-in-mice-firstly-sensitized-with-an-allergen
#16
Natsuki Hannya, Hiromi Ogita-Nakanishi, Ryuji Kato, Yoshio Ijiri, Tetsuya Hayashi, Kazuhiko Tanaka, Ryo Kawata, Hiroshi Takenaka, Takahiro Kubota, Ryotaro Yoshida
There was a significant amount of non-specific, but not of allergen (e.g., papain, mite feces, and 4 kinds of pollen)-specific, IgE antibodies (Abs) in the serum of normal mice. An intranasal (i.n.) injection of each allergen without adjuvant into mice caused an increase in total IgE Ab titers with a similar time course in the serum; but the stage in the initiation of allergy varied from allergen to allergen. Submandibular lymph node cells from normal mice contained papain-, but not mite feces- or pollen-specific IgE+ cells; and an i...
November 29, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/29182623/immunotherapeutic-efficacy-of-liposome-encapsulated-refined-allergen-vaccines-against-dermatophagoides-pteronyssinus-allergy
#17
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/29178674/a-retrospective-study-of-clinical-response-predictors-in-subcutaneous-allergen-immunotherapy-with-house-dust-mites-for-allergic-rhinitis
#18
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/29172121/marijuana-use-is-associated-with-hypersensitivity-to-multiple-allergens-in-us-adults
#19
Jin-Young Min, Kyoung-Bok Min
BACKGROUND: The recent legalization of marijuana use for both medical and recreational purposes in several states of the United Sates is expected to further increase the already high prevalence of marijuana use. Although allergic reactions are uncommon, the potential of marijuana use and cultivation to cause allergy should be considered. We aimed to investigate whether marijuana use is associated with the prevalence of sensitization to specific allergens. METHODS: A total of 2671 adults (aged 20-59 years) who participated in the 2005-2006 National Health and Nutrition Examination Survey were included...
November 20, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29171863/schistosoma-mansoni-specific-immune-responses-and-allergy-in-uganda
#20
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
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