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house dust mite dermatitis

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https://www.readbyqxmd.com/read/27921406/house-dust-mites-confer-a-distinct-immunological-feature-among-dermatitis
#1
Safa Baris, Ahmet Ozen, Tuba Akdeniz, Elif Karakoc-Aydiner, Ovgu Aydin, Hulya Ercan, Ismail Ogulur, Yildiz Camcioglu, Reha Cengizlier, Cuyan Demirkesen, Deniz Yucelten, Gulderen Demirel, Isil B Barlan
Atopic dermatitis (AD) is a heterogeneous disease with regard to clinical phenotype and natural history. We investigated T cell subtypes and cytokine responses in peripheral blood and skin lesions of AD patients with various sensitivities. Immunological studies were performed in 27 subjects: 9 house dust mite (HDM)-sensitized; 6 subjects with sensitizations other than HDM; 7 non-allergic AD patients and 5 healthy controls. Among those, skin biopsy samples of 13 subjects were evaluated for immunohistochemical analyses, as well...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27920408/asthma-and-other-allergic-diseases-among-saudi-schoolchildren-in-najran-the-need-for-a-comprehensive-intervention-program
#2
Jobran M Alqahtani
BACKGROUND: In the last three decades, an increasing incidence of allergic diseases has been associated with increasing morbidity and mortality in children and young adults. OBJECTIVES: The study aimed to investigate the prevalence and risk factors associated with allergic diseases among Saudi schoolchildren in the southwestern Saudi region of Najran, and to determine the sensitization of patients to a set of allergens. DESIGN: Cross-sectional observational study...
November 2016: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/27744247/topical-application-of-moringa-oleifera-leaf-extract-ameliorates-experimentally-induced-atopic-dermatitis-by-the-regulation-of-th1-th2-th17-balance
#3
Eun-Ju Choi, Trishna Debnath, Yujiao Tang, Young-Bae Ryu, Sang-Ho Moon, Eun-Kyung Kim
BACKGROUND: Moringa oleifera (M. oleifera) is widely cultivated in tropical and subtropical regions and has been used as a vegetable and in traditional medicine. In this study, the anti-atopic dermatitis activity of the ethanol extract of M. oleifera leaf was investigated in vitro and in vivo. METHODS: For the in vitro study, HaCaT human keratinocytes were used for cytokines and MAPKinase assay. In the in vivo study, M. oleifera leaf ethanolic extract (MO) was topically applied to BALB/c mice with Dermatophagoides farinae extract (DFE; house dust mite extract)- and 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD)...
October 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27692089/immunoproteomic-characterization-of-a-dermatophagoides-farinae-extract-used-in-the-treatment-of-canine-atopic-dermatitis
#4
Raquel Moya, Jerónimo Carnés, Nuria Sinovas, Laura Ramió, Pilar Brazis, Anna Puigdemont
BACKGROUND: Canine atopic dermatitis is a pruritic allergic skin disease. House dust mites have been identified as the main non-seasonal responsible agent. Unlike in human allergic patients, groups 1 and 2 antigens have been described as minor allergens in dogs, while groups 15 and 18 are considered the major allergens. Despite these differences, allergic dogs have traditionally been treated using extracts intended for human immunotherapy. OBJECTIVES: To investigate the immunological characteristics and the allergen reactivity of dogs with atopic dermatitis using a Dermatophagoides farinae commercial extract...
November 1, 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27682154/analysis-of-the-impact-of-allergy-and-atopy-on-new-onset-of-uveitis
#5
Rafael S Grajewski, Niusha Barahmand Pour, Katja Burian, Albert Caramoy, Bernd Kirchhof, Claus Cursiefen, Ludwig M Heindl
PURPOSE: The inappropriate immune response to harmless foreign and self-antigens is a common feature of allergy, atopy and autoimmune disease. The influence of environmental factors in the initiation of autoimmunity is not well understood. It is conceivable that immune responses to allergens may also serve as a trigger of bystander immune reactions, including autoimmunity such as uveitis. Therefore, we wanted to investigate the prevalence of allergies and atopy in patients with different types of uveitis in comparison to a control cohort...
September 29, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27620194/mk-8237-a-house-dust-mite-vaccine-for-treating-allergic-rhinitis-asthma-and-atopic-dermatitis
#6
Matteo Ferrando, Diego Bagnasco, Giovanni Passalacqua, Gilda Varricchi, Giorgio Walter Canonica
INTRODUCTION: Since its introduction in clinical practice one century ago for the treatment of respiratory allergic diseases, allergen-specific immunotherapy (AIT) has exhibited a relevant clinical efficacy that was subsequently confirmed in controlled trials. Thus, AIT has been accepted worldwide, as testified by guidelines and international documents. AIT is considered pivotal in the management of allergic rhinitis with or without conjunctivitis and with or without asthma. These conditions, in addition to hymenoptera venom allergy, currently are the accepted indications...
November 2016: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/27593870/clinical-efficacy-of-subcutaneous-allergen-immunotherapy-in-patients-with-atopic-dermatitis
#7
Dong Ho Nahm, Myoung Eun Kim, Byul Kwon, Su Mi Cho, Areum Ahn
PURPOSE: The clinical usefulness of subcutaneous allergen immunotherapy (SCIT) in the treatment of atopic dermatitis (AD) is still controversial. We analyzed the clinical efficacy of SCIT in patients with AD and the clinical characteristics of patients showing a favorable clinical response to the treatment. MATERIALS AND METHODS: Two hundred and fifty one patients with AD sensitized to house dust mite (HDM) were treated by SCIT using HDM extract. The clinical severity of AD was measured using the standardized clinical severity scoring system for AD (SCORAD) at baseline and 12 months...
November 2016: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27554335/dc-sign-promotes-allergen-uptake-and-activation-of-dendritic-cells-in-patients-with-atopic-dermatitis
#8
Y Zhang, Y Luo, W Li, J Liu, M Chen, H Gu, B Wang, X Yao
BACKGROUND: Atopic dermatitis (AD) is a common inflammatory skin disease, concomitant with allergic reactions to allergens. However, the exact mechanisms of allergen-induced immune responses in AD are not clear. The aim of this study is to explore the role of DC-SIGN in capturing and processing glycan-containing allergens and in the subsequent DC activation and T helper cell polarization in AD patients. METHODS: DC-SIGN expression on DCs from AD patients was analysed by confocal microscopy and flow cytometry...
August 9, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27496579/water-soluble-extracts-from-actinidia-arguta-pg102-attenuates-house-dust-mite-induced-murine-atopic-dermatitis-by-inhibiting-the-mtor-pathway-with-treg-generation
#9
Min-Jung Bae, Seonung Lim, Doo Suk Lee, Kyoung Ryang Ko, Wonwoo Lee, Sunyoung Kim
ETHNOPHARMACOLOGICAL RELEVANCE: Actinidia arguta is widespread in northeastern Asia, being found in Siberia, Korea, Japan, and northern China. These fruits have been documented to regulate the uncontrolled heat of body resulting in various allergic diseases in the Korean traditional medicine. PG102, a water-soluble extract from an edible fruit, A. arguta, has been previously shown to control various factors involved in allergic pathogenesis. AIM OF THE STUDY: In this study, we investigated whether PG102 prevents chronic allergic reactions via the generation of Tregs, which play a preventive role in the pathogenesis of allergic disease...
August 2, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27490127/atopic-dermatitis-new-evidence-on-the-role-of-allergic-inflammation
#10
Annice Heratizadeh
PURPOSE OF REVIEW: Atopic dermatitis is a chronic relapsing inflammatory skin disease. In the presence of a complex genetic background, there is increasing evidence for the role of specific allergenic trigger factors in perpetuating skin inflammation in sensitized atopic dermatitis patients. In this review, clinical and in-vitro data so far published on allergen-induced adaptive immune responses in atopic dermatitis are summarized. RECENT FINDINGS: Emerging new data have been published particularly on adaptive immune responses to inhalant allergens in atopic dermatitis...
October 2016: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27485242/the-skin-microbiome-in-allergen-induced-canine-atopic-dermatitis
#11
Felipe Pierezan, Thierry Olivry, Judith S Paps, Sara D Lawhon, Jing Wu, Jörg M Steiner, Jan S Suchodolski, Aline Rodrigues Hoffmann
BACKGROUND: Studies focusing on next-generation sequencing of the bacterial 16S rRNA gene have allowed detailed surveys of skin bacterial populations (microbiota) of the skin. HYPOTHESIS/OBJECTIVES: This study evaluated temporal changes in the skin microbiota in a canine model of atopic dermatitis. ANIMALS: Eight atopic dogs previously sensitized with house dust mites (HDM). METHODS: The dogs were topically challenged on the right groin with HDM allergens...
October 2016: Veterinary Dermatology
https://www.readbyqxmd.com/read/27445434/regulatory-t-cell-induced-by-poria-cocos-bark-exert-therapeutic-effects-in-murine-models-of-atopic-dermatitis-and-food-allergy
#12
Min-Jung Bae, Hye-Jeong See, Gyeyoung Choi, Chang-Yuil Kang, Dong-Hwa Shon, Hee Soon Shin
The prevalence of allergic disorders including atopic dermatitis (AD) and food allergy (FA) has increased dramatically in pediatric populations, but there is no effective drug available for their management. Therefore, trials are required for the development of safe therapeutic agents such as herbal medicines. We determined whether orally administered Poria cocos bark (PCB) extract could exert immunosuppressive effects on allergic and inflammatory symptoms of AD and FA. For both AD, which was induced using house dust mite extract, and FA, which was induced by exposure to ovalbumin, model mice were orally treated with PCB extract for 62 days and 18 days, respectively...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27405740/does-adenoid-hypertrophy-affect-disease-severity-in-children-with-allergic-rhinitis
#13
Mahmut Dogru, Muhammed Fatih Evcimik, Omer Faruk Calim
Our study aims to evaluate the presence of adenoid hypertrophy (AH) in children with allergic rhinitis (AR) and the association of AH disease severity and clinical laboratory finding from retrospective, cross-sectional, and nonrandomized trial. The study included 566 children being treated and followed up for allergic rhinitis. Skin prick test for the same allergens was performed for all patients. Adenoid tissue was analyzed by an ENT specialist and the diagnosis was confirmed based on the patient history, endoscopic physical examination and radiology...
July 12, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27376923/acidification-of-stratum-corneum-prevents-the-progression-from-atopic-dermatitis-to-respiratory-allergy
#14
Hae-Jin Lee, Noo Ri Lee, Bo-Kyung Kim, Minyoung Jung, Dong Hye Kim, Catharina S Moniaga, Kenji Kabashima, Eung Ho Choi
The presence of congenitally impaired skin barrier followed by atopic dermatitis (AD) is an initial step in the atopic march. The maintenance of acidic pH in the stratum corneum (SC) has been suggested as a therapeutic or preventive strategy for barrier impairment caused by skin inflammation. To determine whether an AD murine model, flaky tail mice, with inherited filaggrin deficiency could develop airway inflammation by repeated topical application followed by nasal inhalation of house dust mite (HDM) antigen (defined as a novel 'atopic march animal model'), and whether maintenance of an acidic SC environment by continuous application of acidic cream could interrupt the following atopic march...
July 4, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27355819/1-2-4-5-tetramethoxybenzene-suppresses-house-dust-mite-induced-allergic-inflammation-in-balb-c-mice
#15
Meiling Jin, Jin Kyeong Choi, Young-Ae Choi, Yeon-Yong Kim, Moon-Chang Baek, Byung-Heon Lee, Yong Hyun Jang, Weon Ju Lee, Seok-Jong Lee, Do Won Kim, Hyun-Shik Lee, Eui Kyun Park, Soyoung Lee, Zee-Yong Park, Sang-Hyun Kim
BACKGROUND: Atopic dermatitis (AD) is the most common allergic inflammatory skin disease. The activation of innate immunity by house dust mite (Dermatophagoides farinae extract, DFE) allergen plays an important role in the pathogenesis of AD. We previously showed the inhibitory effect of an extract of Amomum xanthioides on allergic diseases, and isolated 1,2,4,5-tetramethoxybenzene (TMB) as a major active component. In this study, we investigated whether TMB relieves DFE-induced allergic inflammation symptoms...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27349006/specific-ige-antibodies-in-young-children-with-atopic-dermatitis-correlation-of-multiple-allergen-simultaneous-immunoblot-test-and-immunocap-system
#16
Ewa Konopka, Aldona Ceregra, Elzbieta Maciorkowska, Barbara Surowska, Ilona Trojanowska, Izabela Roszko-Kirpsza, Bozena Cukrowska
BACKGROUND: Sensitization to food allergens is a common condition in pediatric atopic dermatitis (AD). Recently, the multiple allergen simultaneous test (MAST) allowing for a comprehensive assessment of atopy has been developed, but the usefulness in young AD children is not known. The aim of this study was to determine IgE specificity in AD children using MAST and to compare the results for selected food allergens with the reference ImmunoCap system. METHODS: The study enrolled 50 children up to 2 years old with a diagnosis of AD...
2016: Clinical Laboratory
https://www.readbyqxmd.com/read/27342734/early-activation-of-th2-th22-inflammatory-and-pruritogenic-pathways-in-acute-canine-atopic-dermatitis-skin-lesions
#17
Thierry Olivry, David Mayhew, Judy S Paps, Keith E Linder, Carlos Peredo, Deepak Rajpal, Hans Hofland, Javier Cote-Sierra
Determining inflammation and itch pathway activation in patients with atopic dermatitis (AD) is fraught with the inability to precisely assess the age of skin lesions, thus affecting the analysis of time-dependent mediators. To characterize inflammatory events occurring during early experimental acute AD lesions, biopsy samples were collected 6, 24, and 48 hours after epicutaneous application of Dermatophagoides farinae house dust mites to sensitized atopic dogs. The skin transcriptome was assessed using a dog-specific microarray and quantitative PCR...
October 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27329364/atopy-patch-test-with-house-dust-mite-in-chinese-patients-with-atopic-dermatitis
#18
X Dou, J Kim, C Y Ni, Y Shao, J Zhang
BACKGROUND: The atopy patch test (APT) has been defined as an important tool in the diagnosis of cutaneous hypersensitivity caused by house dust mites in atopic dermatitis (AD). OBJECTIVE: The aim of this study was to evaluate the diagnostic value of the APT to mite allergens by comparing its positive results with those of the skin prick test (SPT) and serum specific IgE test in Chinese AD patients. METHODS: The APT, SPT and serum specific IgE test with Dermatophagoiodes pteronyssinus and Dermatophagoides farina were performed on a total of 120 patients with atopic dermatitis...
September 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27240551/therapeutic-effect-of-tyndallized-lactobacillus-rhamnosus-idcc-3201-on-atopic-dermatitis-mediated-by-down-regulation-of-immunoglobulin-e-in-nc-nga-mice
#19
Seung-Hun Lee, Jong-Min Yoon, Young-Hoo Kim, Dong-Gu Jeong, Soobong Park, Dae-Jung Kang
The therapeutic effect of oral administration of Lactobacillus rhamnosus IDCC 3201 tyndallizate (RHT3201) on atopic dermatitis (AD)-like skin lesions in NC/Nga mice were investigated. After induction of dermatitis in NC/Nga mice with house-dust mite extract, each group was fed RHT3201 with 1 × 10(8) , 1 × 10(9) , or 1 × 10(10) cells orally once a day for 8 weeks. Dermatitis scores and frequency of scratching were improved by oral feeding with RHT3201. In contrast to the control group, RHT3201-fed mice showed significantly down-regulated mast cell numbers and serum immunoglobulin E (IgE) concentrations had significantly less IL4 in their axillary lymph node cells...
July 2016: Microbiology and Immunology
https://www.readbyqxmd.com/read/27228091/ige-sensitization-profiles-differ-between-adult-patients-with-severe-and-moderate-atopic-dermatitis
#20
Irene Mittermann, Gustav Wikberg, Catharina Johansson, Christian Lupinek, Lena Lundeberg, Reto Crameri, Rudolf Valenta, Annika Scheynius
BACKGROUND: Atopic dermatitis (AD) is a complex chronic inflammatory disease where allergens can act as specific triggering factors. AIM: To characterize the specificities of IgE-reactivity in patients with AD to a broad panel of exogenous allergens including microbial and human antigens. METHODOLOGY: Adult patients with AD were grouped according to the SCORAD index, into severe (n = 53) and moderate AD (n = 126). As controls 43 patients were included with seborrhoeic eczema and 97 individuals without history of allergy or skin diseases...
2016: PloS One
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