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Atopic dermatitis

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https://www.readbyqxmd.com/read/27932517/allergin-1-inhibits-tlr2-mediated-mast-cell-activation-and-suppresses-dermatitis
#1
Satoshi Tsurusaki, Satoko Tahara-Hanaoka, Shohei Shibagaki, Shota Miyake, Masamichi Imai, Shiro Shibayama, Masato Kubo, Akira Shibuya
TLR2 recognizes cell wall components of Staphylococcus aureus, which colonizes >90% of atopic eczematous skin lesions. The regulatory mechanisms of TLR2 signaling in the skin remain unclear. Allergin-1, an inhibitory immunoglobulin-like receptor containing an ITIM, is expressed on mast cells (MCs) and inhibits IgE-mediated anaphylaxis in mice. Here, we show that Allergin-1 inhibits TLR2-mediated activation of, and inflammatory cytokine production by, MCs in vitro Compared with wild-type mice, Allergin-1-deficient mice showed enhanced ear swelling with enhanced collagen deposition and greater Ly6G(+) neutrophil recruitment after intra-dermal injection of Pam2CSK4 into pinnae...
November 8, 2016: International Immunology
https://www.readbyqxmd.com/read/27931974/mathematical-modeling-of-atopic-dermatitis-reveals-double-switch-mechanisms-underlying-four-common-disease-phenotypes
#2
Elisa Domínguez-Hüttinger, Panayiotis Christodoulides, Kosuke Miyauchi, Alan D Irvine, Mariko Okada-Hatakeyama, Masato Kubo, Reiko J Tanaka
BACKGROUND: The skin barrier acts as the first line of defense against constant exposure to biological, microbial, physical and chemical environmental stressors. Dynamic interplay between defects in the skin barrier, dysfunctional immune responses, and environmental stressors are major factors in the development of atopic dermatitis (AD). A systems-biology modeling approach can yield significant insights into these complex and dynamic processes through integration of prior biological data...
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931973/effect-of-probiotics-in-prevention-of-atopic-dermatitis-is-dependent-on-the-intrinsic-microbiota-at-early-infancy
#3
Ekaterina Avershina, Raul Cabrera-Rubio, Krister Lundgård, Gaspar Perez-Martinez, Maria Carmen Collado, Ola Storrø, Torbjørn Øien, Christian Kvikne Dotterud, Roar Johnsen, Knut Rudi
Although a link between probiotic intervention and reduction in atopic disease has been documented, no consistent associations with microbiota has yet been established. Here we have conducted an extensive analysis of the microbiota from more than 250 mother child pairs from a probiotic intervention cohort, where we previously have shown 40 % reduction in atopic dermatitis. Within the probiotic intervention group at the age of 10 days we found that the atopic children had a deviating microbiota (p = 0.028, BH-FDR corrected Kruskal Wallis) with high levels (> 10 %) of a bacterium related to Bifidobacterium dentium (p=0...
December 5, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931536/advances-in-atopic-dermatitis-in-2015
#4
REVIEW
Takashi Nomura, Kenji Kabashima
This review aims to highlight recently published articles on atopic dermatitis (AD). Updated are the insights into epidemiology, pathology, diagnostics, and therapy. Epidemiologic studies have revealed a positive correlation between AD and systemic conditions, such as rheumatoid arthritis, inflammatory bowel disease, and neonatal adiposity. Pathologic findings highlight the involvement of novel barrier factors (desmoplakin and claudin), novel immune cell subsets (pathogenic effector TH2 cells and group 2 innate lymphoid cells), and differential skewing of helper T cells (eg, TH17 dominance in Asians with AD)...
December 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931211/gonadectomy-effects-on-the-risk-of-immune-disorders-in-the-dog-a-retrospective-study
#5
Crystal R Sundburg, Janelle M Belanger, Danika L Bannasch, Thomas R Famula, Anita M Oberbauer
BACKGROUND: Gonadectomy is one of the most common procedures performed on dogs in the United States. Neutering has been shown to reduce the risk for some diseases although recent reports suggest increased prevalence for structural disorders and some neoplasias. The relation between neuter status and autoimmune diseases has not been explored. This study evaluated the prevalence and risk of atopic dermatitis (ATOP), autoimmune hemolytic anemia (AIHA), canine myasthenia gravis (CMG), colitis (COL), hypoadrenocorticism (ADD), hypothyroidism (HYPO), immune-mediated polyarthritis (IMPA), immune-mediated thrombocytopenia (ITP), inflammatory bowel disease (IBD), lupus erythematosus (LUP), and pemphigus complex (PEMC), for intact females, intact males, neutered females, and neutered males...
December 8, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27930517/psychiatry-outpatient-visits-by-atopic-dermatitis-patients-varying-in-the-complexity-of-their-prescriptions-a-nationwide-cohort-study-conducted-from-2005-to-2013
#6
Jaeyong Shin, Young Choi, Eun-Cheol Park, Kwang Hoon Lee, Seo Young Hwang, Sang Ho Oh, Sang Gyu Lee
The uncomfortable symptoms of atopic dermatitis (AD) often trigger psychological stress.We investigated the association between AD severity and outpatient visits to psychiatrists using Korean National Health Insurance claims data from 2004 to 2013.This was a retrospective cohort analysis; we estimated hazard ratios (HRs).Of the 266,182 subjects, 18,290 (6.9%) had a history of visiting a psychiatrist, and 25,419 (9.5%) were diagnosed with AD. Compared with the subjects without AD, subjects with AD had a higher HR for visiting a psychiatrist (3...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27928524/review-of-medicinal-remedies-on-hand-eczema-based-on-iranian-traditional-medicine-a-narrative-review-article
#7
REVIEW
Parvin Mansouri, Aleme Khademi, Daryoush Pahlevan, Zahra Memariani, Jale Aliasl, Laila Shirbeigii
BACKGROUND: Hand Eczema (HE) is a dermatological disorder with frequent relapses and multiple causes such as atopic, allergic and irritant contact dermatitis. The management is complex because of the wide range of different pathogenesis. Efficacy of some of available treatments is not well established and it can affect patients' quality of life significantly. METHODS: Reports on HE such as diagnosis, pathophysiology, pharmacological and nonpharmacological therapy that described in medieval Iranian medicine, were gathered and analyzed from selected medical and pharmaceutical textbooks of Iranian Traditional Medicine (ITM)...
August 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/27921413/short-time-efficiency-of-rhinophototherapy-in-management-of-patients-with-allergic-rhinitis-resistant-to-medical-therapy
#8
Soheila Alyasin, Seyed Hesamedin Nabavizadeh, Hamidreza Houshmand, Hossein Esmaeilzadeh, Sina Jelodar, Reza Amin
Allergic rhinitis is one of the most common health problems with a major effect on the quality of life. We intended to treat Allergic Rhinitis (AR) in patients who are either unresponsive to antihistamines or their job requires optimal alertness that may be disturbed by antihistamine's side effects and those who do not comply with the regular use. We tried short term phototherapy and evaluated its effect on AR. As phototherapy is effective in the treatment of atopic dermatitis (AD) and the same allergens can produce both AD and AR, phototherapy is proposed as a new tool in the AR treatment...
August 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/27921406/house-dust-mites-confer-a-distinct-immunological-feature-among-dermatitis
#9
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
#10
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/27918774/cost-effectiveness-of-prophylactic-moisturization-for-atopic-dermatitis
#11
Shuai Xu, Supriya Immaneni, Gordon B Hazen, Jonathan I Silverberg, Amy S Paller, Peter A Lio
Importance: Emerging evidence suggests that the use of moisturizers on newborns and infants (ie, from birth to 6 months of age) is potentially helpful in preventing the development of atopic dermatitis. Objective: To investigate the cost-effectiveness of using a daily moisturizer as prevention against atopic dermatitis among high-risk newborns. Design, Setting, and Participants: In a cost-effectiveness analysis, the average cost of total-body moisturization using 7 common moisturizers from birth to 6 months of age was determined for male and female infants...
December 5, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/27918476/antenatal-dexamethasone-exposure-in-preterm-infants-is-associated-with-allergic-diseases-and-the-mental-development-index-in-children
#12
Wan-Ning Tseng, Chih-Cheng Chen, Hong-Ren Yu, Li-Tung Huang, Ho-Chang Kuo
Background: Antenatal steroid administration may benefit fetal lung maturity in preterm infants. Although some studies have shown that this treatment may increase asthma in childhood, the correlation between antenatal dexamethasone exposure and allergic diseases remains unclear. The purpose of this study is to investigate the association between antenatal dexamethasone and T cell expression in childhood allergic diseases. Methods: We recruited a cohort of preterm infants born at Kaohsiung Chang Gung Memorial Hospital between 2007 and 2010 with a gestational age of less than 35 weeks and body weight at birth of less than 1500 g...
December 3, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27918470/vitamin-d-status-and-efficacy-of-vitamin-d-supplementation-in-atopic-dermatitis-a-systematic-review-and-meta-analysis
#13
Min Jung Kim, Soo-Nyung Kim, Yang Won Lee, Yong Beom Choe, Kyu Joong Ahn
Recent literature has highlighted the possible role of vitamin D in atopic dermatitis (AD), and that vitamin D supplementation might help to treat AD. This study determined the relationship between vitamin D level and AD, and assessed the efficacy of vitamin D supplementation. We searched the MEDLINE, EMBASE, and Cochrane databases up to May 2015. Observational studies and randomized controlled trials were included based on the available data on the serum 25-hydroxyvitamin D (25(OH)D) level and quantified data available for severity assessed using the Scoring Atopic Dermatitis (SCORAD) index or Eczema Area and Severity Index (EASI) score...
December 3, 2016: Nutrients
https://www.readbyqxmd.com/read/27917678/traditional-mediterranean-plants-characterization-and-use-of-an-essential-oils-mixture-to-treat-malassezia-otitis-externa-in-atopic-dogs
#14
Simona Nardoni, Luisa Pistelli, Ilenia Baronti, Basma Najar, Francesca Pisseri, Rose Vanessa Bandeira Reidel, Roberto Papini, Stefania Perrucci, Francesca Mancianti
Several plants extracts from Mediterranean countries are traditionally employed in skin troubles both in humans and in animals. Malassezia pachydermatis is a lipophylic yeast responsible for otitis externa and dermatitis in dogs and for cutaneous and systemic disease in humans. Five mixtures of essential oils obtained from Mediterranean plants (Citrus paradisi, Salvia sclarea, Ocimum basilicum, Rosmarinus officinalis, Citrus limon, Anthemis nobilis, Lavandula hybrida and Thymus vulgaris) provided with antifungal and/or anti-inflammatory action assayed in vitro, were tested in vivo versus M...
December 5, 2016: Natural Product Research
https://www.readbyqxmd.com/read/27914645/comparison-of-diverse-estimation-methods-for-personal-exposure-to-air-pollutants-and-associations-with-allergic-symptoms-the-allergy-gene-environment-link-angel-study
#15
Young-Min Kim, Jihyun Kim, Youngshin Han, Byung-Jae Lee, Dong-Chull Choi, Hae-Kwan Cheong, Byoung-Hak Jeon, Inbo Oh, Gwi-Nam Bae, Jae Young Lee, Chang-Heok Kim, SungChul Seo, Su Ryeon Noh, Kangmo Ahn
We estimated the exposure to ambient air pollutants and analyzed the associations with allergic diseases. We enrolled 177 children with atopic dermatitis (AD) and 70 asthmatic adults living in Seoul Metropolitan Area, Korea, and followed for 17months between August 2013 and December 2014. Parents or patients recorded symptom scores on a daily basis. Exposure to particulate matter with a diameter <10μm (PM10) and nitrogen dioxide (NO2) was estimated in four different ways in each individual, using the AQ1 (measurements from the nearest air quality monitoring station to residential houses), AQ2 (measurements modified from AQ1 with the indoor level of air pollutants and time activity of each individual), AQ1-DI, and AQ2-DI (measurements modified from AQ1 and AQ2, respectively, with daily inhalation intakes of air pollutants)...
November 30, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27913962/bathing-and-associated-treatments-in-atopic-dermatitis
#16
REVIEW
Julia K Gittler, Jason F Wang, Seth J Orlow
Atopic dermatitis is one of the most common complaints presenting to dermatologists, and patients typically inquire as to appropriate bathing recommendations. Although many dermatologists, allergists, and primary-care practitioners provide explicit bathing instructions, recommendations regarding frequency of bathing, duration of bathing, and timing related to emollient and medication application relative to bathing vary widely. Conflicting and vague guidelines stem from knowledge related to the disparate effects of water on skin, as well as a dearth of studies, especially randomized controlled trials, evaluating the effects of water and bathing on the skin of patients with atopic dermatitis...
December 3, 2016: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/27913303/an-mtorc1-akt1-cathepsin-h-axis-controls-filaggrin-expression-and-processing-in-skin-a-novel-mechanism-for-skin-barrier-disruption-in-atopic-dermatitis
#17
Aishath S Naeem, Cristina Tommasi, Christian Cole, Stuart J Brown, Yanan Zhu, Benjamin Way, Saffron Ag Willis Owen, Miriam Moffatt, William O Cookson, John I Harper, Di Wl, Sara J Brown, Thomas Reinheckel, Ryan F L O'Shaughnessy
BACKGROUND: Filaggrin, encoded by the FLG gene, is an important component of the skin's barrier to the external environment and genetic defects in FLG strongly associate with Atopic Dermatitis (AD). However, not all AD patients have FLG mutations. OBJECTIVE: We hypothesised that these patients may possess other defects in filaggrin expression and processing, contributing to barrier disruption and AD, and therefore present novel therapeutic targets for this disease...
November 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27910751/recent-advances-in-pharmacotherapeutic-paradigm-of-mild-to-recalcitrant-atopic-dermatitis
#18
Zahid Hussain, Shariza Sahudin, Hnin Ei Thu, Ahmad Nazrun Shuid, Syed Nasir Abbas Bukhari, Endang Kumolosasi
Atopic dermatitis (AD) is a common, chronic skin inflammatory disorder characterized by perivascular infiltration of immunoglobulin E (IgE), T lymphocytes, and mast cells. The key factors responsible for the pathophysiology of this disease are immunological disorders and defects in epidermal barrier properties. Pruritus, intense itching, psychological stress, deprived physical and mental performance, and sleep disturbance are the hallmark features of this dermatological disorder. Preventive interventions such as educational programs, avoidance of allergens, and exclusive care toward the skin could play a partial role in suppressing the symptoms...
2016: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/27910159/staphylococcus-aureus-derived-membrane-vesicles-exacerbate-skin-inflammation-in-atopic-dermatitis
#19
S H Jun, J H Lee, S I Kim, C W Choi, T I Park, H R Jung, J W Cho, S H Kim, J C Lee
BACKGROUND: Skin colonization or infection with Staphylococcus aureus is known to trigger aggravation of atopic dermatitis (AD). However, the exact mechanisms by which S. aureus can worsen AD are unknown. OBJECTIVE: We investigated whether and how S. aureus-derived membrane vesicles (MVs) contribute to worsening of AD. METHODS: Immunohistochemical and immunoelectron microscopic analyses were performed to detect staphylococcal protein A (SPA) in the epidermis of AD lesions...
November 5, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27908570/sleep-related-disorders-in-latin-american-children-with-atopic-dermatitis-a-case-control-study
#20
M Urrutia-Pereira, D Solé, N A Rosario, H J C Neto, V Acosta, C F Almendarez, M M Avalos, H Badellino, F Berroa, M Álvarez-Castelló, A J Castillo, R L Castro-Almarales, M M De la Cruz, A M Cepeda, C Fernandez, M González-León, J Lozano-Saenz, C Sanchez-Silot, J C Sisul-Alvariza, M Valentin-Rostan, R O S Sarni
BACKGROUND: Atopic dermatitis (AD) has been associated with impairment of sleep. The aim of this study was to evaluate sleep disorders in AD Latin-American children (4-10 years) from nine countries, and in normal controls (C). METHODS: Parents from 454 C and 340 AD children from referral clinics answered the Children Sleep Habits Questionnaire (CSHQ), a one-week retrospective 33 questions survey under seven items (bedtime resistance, sleep duration, sleep anxiety, night awakening, parasomnias, sleep-disordered breathing and daytime sleepiness)...
November 28, 2016: Allergologia et Immunopathologia
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