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https://www.readbyqxmd.com/read/28210979/the-skin-as-a-route-of-allergen-exposure-part-ii-allergens-and-role-of-the-microbiome-and-environmental-exposures
#1
REVIEW
George Knaysi, Anna R Smith, Jeffrey M Wilson, Julia A Wisniewski
PURPOSE OF REVIEW: This second part of the article aims to highlight recent contributions in the literature that enhance our understanding of the cutaneous immune response to allergen. RECENT FINDINGS: Several properties of allergens facilitate barrier disruption and cutaneous sensitization. There is a strong epidemiologic relationship between the microbiome, both the gut and skin, and atopic dermatitis (AD). The mechanisms connecting these two entities remain enigmatic; however, recent murine models show that commensal skin bacteria play an active role in supporting skin barrier homeostasis and defense against microbial penetration...
January 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28210712/identification-of-an-epidermal-keratinocyte-ampa-glutamate-receptor-involved-in-dermatopathies-associated-with-sensory-abnormalities
#2
David Cabañero, Takeshi Irie, Marta Celorrio, Christopher Trousdale, David M Owens, David Virley, Phillip J Albrecht, Michael J Caterina, Frank L Rice, Jose A Morón
INTRODUCTION: Epidermal keratinocytes are increasingly recognized as active participants in the sensory transduction of itch and pain, processes known to involve primary afferent glutamatergic neurons. However the role of keratinocyte glutamate signaling in sensory functioning is not fully understood. Here, we present the observation of α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid type glutamate receptors (AMPAR) in epidermal keratinocytes. METHODS: Immunohistochemical and in situ hybridization analyses were conducted to assess the expression of AMPAR subunits in epidermal keratinocytes in mouse and human skin samples, and in organotypic cultures of human keratinocytes...
September 2016: Pain Reports (Baltimore, Md.)
https://www.readbyqxmd.com/read/28210628/usefulness-of-sweat-management-for-patients-with-adult-atopic-dermatitis-regardless-of-sweat-allergy-a-pilot-study
#3
Sakae Kaneko, Hiroyuki Murota, Susumu Murata, Ichiro Katayama, Eishin Morita
Background. Sweat is an aggravating factor in atopic dermatitis (AD), regardless of age. Sweat allergy may be involved in AD aggravated by sweating. Objective. We investigated whether sweat exacerbates adult AD symptoms and examined the extent of sweat allergy's involvement. Method. We asked 34 AD patients (17 men, 17 women; mean age: 27.8 years) to record the extent to which sweat aggravated their symptoms on a 10-point numerical scale. Participant responses were compared with histamine release tests (HRT)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28210627/hyperforin-hp-%C3%AE-cyclodextrin-enhances-mechanosensitive-ca-2-signaling-in-hacat-keratinocytes-and-in-atopic-skin-ex-vivo-which-accelerates-wound-healing
#4
Hiroya Takada, Jun Yonekawa, Masami Matsumoto, Kishio Furuya, Masahiro Sokabe
Cutaneous wound healing is accelerated by mechanical stretching, and treatment with hyperforin, a major component of a traditional herbal medicine and a known TRPC6 activator, further enhances the acceleration. We recently revealed that this was due to the enhancement of ATP-Ca(2+) signaling in keratinocytes by hyperforin treatment. However, the low aqueous solubility and easy photodegradation impede the topical application of hyperforin for therapeutic purposes. We designed a compound hydroxypropyl-β-cyclodextrin- (HP-β-CD-) tetracapped hyperforin, which had increased aqueous solubility and improved photoprotection...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28209661/non-topical-management-of-recalcitrant-paediatric-atopic-dermatitis
#5
REVIEW
Jin Ho Chong, Mark Jean Aan Koh
Atopic dermatitis (AD) is a common chronic, pruritic skin disease in children. As the incidence of AD increases, especially in high-income countries, paediatricians may see an increasing number of recalcitrant AD cases in their practice. Although these cases are principally managed by paediatric dermatologists, it is important for paediatricians to be aware of the use and side effects of non-topical treatment like phototherapy and systemic agents as well as the evidence for alternative treatment, which caregivers may ask about...
February 16, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28209343/a-clinical-trial-of-intradermal-and-intramuscular-seasonal-influenza-vaccination-in-patients-with-atopic-dermatitis
#6
Donald Y M Leung, Brett Jepson, Lisa A Beck, Jon M Hanifin, Lynda C Schneider, Amy S Paller, Katherine Monti, Gloria David, Jennifer Canniff, Margarita Gomez Lorenzo, Adriana Weinberg
BACKGROUND: Antibody responses to the inactivated seasonal influenza vaccine in patients with atopic dermatitis (AD) have not been carefully characterized. OBJECTIVE: The primary objective of this study was to compare antibody responses to intradermal vaccination in participants with moderate/severe AD with those in nonatopic participants. Secondary objectives were to evaluate the effect of route of administration, Staphylococcus aureus skin colonization, and disease severity on vaccine response...
January 31, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28209325/japanese-guidelines-for-atopic-dermatitis-2017
#7
REVIEW
Ichiro Katayama, Michiko Aihara, Yukihiro Ohya, Hidehisa Saeki, Naoki Shimojo, Shunsuke Shoji, Masami Taniguchi, Hidekazu Yamada
Given the importance of appropriate diagnosis and appropriate assessment of cutaneous symptoms in treatment of atopic dermatitis, the basics of treatment in this guideline are composed of (1) investigation and countermeasures of causes and exacerbating factors, (2) correction of skin dysfunctions (skin care), and (3) pharmacotherapy, as three mainstays. These are based on the disease concept that atopic dermatitis is an inflammatory cutaneous disease with eczema by atopic diathesis, multi-factorial in onset and aggravation, and accompanied by skin dysfunctions...
February 10, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28209324/japanese-guidelines-for-allergic-conjunctival-diseases-2017
#8
REVIEW
Etsuko Takamura, Eiichi Uchio, Nobuyuki Ebihara, Shigeaki Ohno, Yuichi Ohashi, Shigeki Okamoto, Naoki Kumagai, Yoshiyuki Satake, Jun Shoji, Yayoi Nakagawa, Kenichi Namba, Kazumi Fukagawa, Atsuki Fukushima, Hiroshi Fujishima
The definition, classification, pathogenesis, test methods, clinical findings, criteria for diagnosis, and therapies of allergic conjunctival disease are summarized based on the Guidelines for Clinical Management of Allergic Conjunctival Disease (Second Edition) revised in 2010. Allergic conjunctival disease is defined as "a conjunctival inflammatory disease associated with a Type I allergy accompanied by some subjective or objective symptoms." Allergic conjunctival disease is classified into allergic conjunctivitis, atopic keratoconjunctivitis, vernal keratoconjunctivitis, and giant papillary conjunctivitis...
February 10, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28209147/knowledge-attitudes-and-practices-of-the-medical-personnel-regarding-atopic-dermatitis-in-yaound%C3%A3-cameroon
#9
Emmanuel Armand Kouotou, Jobert Richie N Nansseu, Alexandra Dominique Ngangue Engome, Sandra Ayuk Tatah, Anne Cécile Zoung-Kanyi Bissek
BACKGROUND: Atopic dermatitis (AD) is a chronic, relapsing and pruritic inflammatory skin disease whose management remains unclear to most non-dermatologists. This study aimed to assess the knowledge, attitudes and practices (KAP) of the medical staff regarding AD in Yaoundé, Cameroon. METHODS: This was a cross-sectional study conducted from January to April 2014 in 20 health facilities located in Yaoundé, the capital city of Cameroon. All medical staff who provided their consent were included in the study...
February 16, 2017: BMC Dermatology
https://www.readbyqxmd.com/read/28208225/indoor-fungal-diversity-in-primary-schools-may-differently-influence-allergic-sensitization-and-asthma-in-children
#10
João Cavaleiro Rufo, Joana Madureira, Inês Paciência, Lívia Aguiar, Cristiana Pereira, Diana Silva, Patrícia Padrão, Pedro Moreira, Luís Delgado, Isabella Annesi-Maesano, Eduardo Oliveira Fernandes, João Paulo Teixeira, André Moreira
BACKGROUND: Childhood exposure to microbiological agents may influence the development of allergic and respiratory diseases. Apart from home, children spend most of their time at school, which represents an environment of significant exposure to indoor air microbes. Therefore, we aimed to assess how the prevalence of allergic sensitization and asthma in schoolchildren is affected by microbiological exposure within classrooms. METHODS: Spirometry with bronchodilation, exhaled nitric oxide measurements and skin-prick tests data were retrieved from 858 children aged 8 to 10 years old attending 71 classrooms in 20 primary schools...
February 16, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28208011/glucosylsphingosine-activates-serotonin-receptor-2a-and-2b-implication-of-a-novel-itch-signaling-pathway
#11
Ramsha Afzal, Won-Sik Shim
Recent reports claimed that glucosylsphingosine (GS) is highly accumulated and specifically evoking itch-scratch responses in the skins of atopic dermatitis (AD) patients. However, it was unclear how GS can trigger itch-scratch responses, since there were no known molecular singling pathways revealed yet. In the present study, it was verified for the first time that GS can activate mouse serotonin receptor 2a (mHtr2a) and 2b (mHtr2b), but not 2c (mHtr2c) that are expressed in HEK293T cells. Specifically, effects of GS on all mouse serotonin receptor 2 subfamily were evaluated by calcium imaging techniques...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28207943/the-role-of-the-skin-microbiome-in-atopic-dermatitis-a-systematic-review
#12
REVIEW
R Dybboe, J Bandier, L Skov, L Engstrand, J D Johansen
BACKGROUND: Dysbiosis is a hallmark of atopic dermatitis. The composition of skin microbiome communities and the causality of dysbiosis in eczema have not been well established. OBJECTIVE: To describe the skin microbiome profile in atopic dermatitis and address if there is a causal relationship between dysbiosis and atopic dermatitis. METHODS: The protocol is registered in PROSPERO (CRD42016035813). We searched PubMed, Embase, Scopus and ClinicalTrials...
February 16, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28207843/allergic-rhinitis-atopic-dermatitis-and-asthma-are-associated-with-differences-in-school-performance-among-korean-adolescents
#13
So Young Kim, Min-Su Kim, Bumjung Park, Jin-Hwan Kim, Hyo Geun Choi
Several studies have reported negative relations between allergic diseases and school performance but have not simultaneously considered various allergic diseases, including allergic rhinitis, asthma, and atopic dermatitis, and only examined a limited number of participants. The present study investigated the associations of allergic rhinitis, asthma, and atopic dermatitis with school performance in a large, representative Korean adolescent population. A total of 299,695 7th through 12th grade students participated in the Korea Youth Risk Behaviour Web-based Survey (KYRBWS) from 2009 to 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28207767/osteoporosis-in-adult-patients-with-atopic-dermatitis-a-nationwide-population-based-study
#14
Ching-Ying Wu, Ying-Yi Lu, Chun-Ching Lu, Yu-Feng Su, Tai-Hsin Tsai, Chieh-Hsin Wu
The aim of this study was to investigate osteoporosis risk in atopic dermatitis (AD) patients. This study included patients in the Taiwan National Health Insurance Research dataset. The population-based study included all patients aged 20-49 years who had been diagnosed with AD during 1996-2010. In total, 35,229 age and gender-matched patients without AD in a 1:1 ratio were randomly selected as the non-AD group. Cox proportional-hazards regression and Kaplan-Meier analyses were used to measure the hazard ratios and the cumulative incidences of osteoporosis, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28207081/can-we-be-too-clean-for-our-own-good-the-hygiene-hypothesis-reviewed
#15
Sheenal Patel, Rebecca Gruchalla
The hygiene hypothesis began as an attempt to explain the relatively rapid rise in atopic diseases. Strachan's early hypothesis regarding the role of family size and exposure to early childhood infections in the development of atopic diseases has clearly evolved to integrate the possible effects of hygiene, eradication of parasitic infections, immunizations, improvements in home heating and ventilation, dust mite exposure, breastfeeding duration, diet, parental smoking, pollution, and exposure to pets and farm animals...
February 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28207075/quality-of-life-of-parents-of-children-with-atopic-dermatitis
#16
Joanna Marciniak, Adam Reich, Jacek C Szepietowski
Atopic dermatitis (AD) is the most common chronic dermatitis in children. The influence of AD on quality of life of parents of children with AD was studied using the Family Dermatology Life Quality Index (FDLQI). Fifty children with AD were included in the study (age range 2-24 months) together with their parents. Children's AD was found to influence the quality of life of both parents; however, it had a more significant influence on quality of life of mothers than that of fathers (mean FDLQI: 17.1 ± 5...
February 16, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28202403/increased-risk-of-cutaneous-and-systemic-infections-in-atopic-dermatitis-a-cohort-study
#17
Sinéad M Langan, Katrina Abuabara, Sarah E Henrickson, Ole Hoffstad, David J Margolis
No abstract text is available yet for this article.
February 12, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28202402/low-maternal-prenatal-25-hydroxy-vitamin-d-blood-levels-are-associated-with-childhood-atopic-dermatitis
#18
Maria Blomberg, Sheryl L Rifas-Shiman, Carlos A Camargo, Diane R Gold, Maryam M Asgari, Jacob P Thyssen, Augusto A Litonjua, Matthew W Gillman, Emily Oken
No abstract text is available yet for this article.
February 12, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28202113/-effect-of-atopy-on-serum-glucocorticoid-receptor-levels-in-children-with-bronchiolitis
#19
Huan-Yin Yao, Wei-Rong Liu, Hang-Hu Zhang, Hua-Jun Li, Xiao-Xian Wang, Shu-Mei Liu, Xiao-Hong Chen
OBJECTIVE: To investigate the effect of atopy on the expression of glucocorticoid receptors in children with bronchiolitis. METHODS: ELISA was used to measure the changes in the serum levels of glucocorticoid receptor α (GRα) and glucocorticoid receptor β (GRβ) in the bronchiolitis group (77 children, including 34 children with atopy) and pneumonia group (68 children). Thirty-eight children who were prepared to undergo surgeries for non-infectious diseases and had no atopy or family history of allergic diseases were enrolled as the control group...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28202060/critically-appraised-topic-on-adverse-food-reactions-of-companion-animals-3-prevalence-of-cutaneous-adverse-food-reactions-in-dogs-and-cats
#20
Thierry Olivry, Ralf S Mueller
BACKGROUND: The prevalence of cutaneous adverse food reactions (CAFRs) in dogs and cats is not precisely known. This imprecision is likely due to the various populations that had been studied. Our objectives were to systematically review the literature to determine the prevalence of CAFRs among dogs and cats with pruritus and skin diseases. RESULTS: We searched two databases for pertinent references on August 18, 2016. Among 490 and 220 articles respectively found in the Web of Science (Science Citation Index Expanded) and CAB Abstract databases, we selected 22 and nine articles that reported data usable for CAFR prevalence determination in dogs and cats, respectively...
February 15, 2017: BMC Veterinary Research
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