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Allergic contact dermatitis

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https://www.readbyqxmd.com/read/27918002/hair-care-practices-in-african-american-women-potential-for-allergic-contact-dermatitis
#1
Alicia Stallings, Apra Sood
Allergic contact dermatitis (ACD) is a delayed hypersensitivity reaction that occurs when the skin is re-exposed to a substance to which it was previously sensitized. One significant source of exposure to sensitizing chemicals is through personal grooming and beauty products. While the role of cosmetics and hair-care products in the development of ACD is well-documented, there has been very little literature that specifically addresses the role of hair-care practices of patients with tightly curled hair, such as in patients of African descent, in the development of ACD in this population...
December 2016: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27917896/astragaloside-iv-ameliorates-allergic-inflammation-by-inhibiting-key-initiating-factors-in-the-initial-stage-of-sensitization
#2
Kai-Fan Bao, Xi Yu, Xiao Wei, Li-Li Gui, Hai-Liang Liu, Xiao-Yu Wang, Yu Tao, Guo-Rong Jiang, Min Hong
To illuminate the anti-allergy mechanism of astragaloside IV (AS-IV), we assessed its effects in a murine model of allergic contact dermatitis (ACD). AS-IV administered in the sensitization phase, rather than in the elicitation phase, dramatically alleviated the symptoms of allergic inflammation. We hypothesized that AS-IV exerts its anti-allergy effects by regulating the production of key pro-allergic cytokines based on the fact that interleukin (IL)-33 and thymic stromal lymphopoietin (TSLP) levels increase significantly in the initial stage of the sensitization phase...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27914155/-main-causes-of-occupational-allergic-contact-dermatitis-a-three-year-study-in-the-center-of-portugal
#3
Catarina Pestana, Raquel Gomes, Vítor Pinheiro, Miguel Gouveia, Isabel Antunes, Margarida Gonçalo
INTRODUCTION: Allergic contact dermatitis, along with irritant contact dermatitis and immediate contact reactions, contact urticarial, are the most frequent dermatological occupational disease, but seldom reported to the National authorities. MATERIAL AND METHODS: We performed a 3-year retrospective study at the allergology section in the Dermatology Clinic of the University Hospital of Coimbra to evaluate the main occupations diagnosed as occupational allergic contact dermatitis, most common allergens and the effect of the modification of the work station in the evolution of the disease...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27910751/recent-advances-in-pharmacotherapeutic-paradigm-of-mild-to-recalcitrant-atopic-dermatitis
#4
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/27896884/contact-allergy-to-preservatives-essca-results-with-the-baseline-series-2009-2012
#5
Ana M Giménez-Arnau, Gustavo Deza, Andrea Bauer, Graham A Johnston, Vera Mahler, Marie-Louise Schuttelaar, Javier Sanchez-Perez, Juan Francisco Silvestre, Mark Wilkinson, Wolfgang Uter
BACKGROUND: Allergic contact dermatitis caused by biocides is common, and causes significant patient morbidity. OBJECTIVE: To describe the current frequency and pattern of patch test reactivity to biocide allergens included in the baselines series of most European countries. METHODS: Data collected by the European Surveillance System on Contact Allergies (ESSCA) network between 2009 and 2012 from 12 European countries were analysed. RESULTS: Methylisothiazolinone 0...
November 29, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27886903/allergic-contact-dermatitis
#6
REVIEW
Lisa Kostner, Florian Anzengruber, Caroline Guillod, Mike Recher, Peter Schmid-Grendelmeier, Alexander A Navarini
Allergic contact dermatitis (ACD) is a common skin disease caused by a T cell-mediated immune reaction to usually innocuous allergens. ACD can have grave medical and socioeconomic consequences. ACD and irritant contact dermatitis often occur together. A detailed history and clinical examination are crucial and guide patch testing, which is the gold standard to diagnose ACD. T-cell clones persisting in the skin may explain the tendency of ACD to relapse even after years of allergen avoidance. Traditional treatments for ACD are topical steroids, calcineurin inhibitors, phototherapy, retinoids (including the recent alitretinoin), and immunosuppressants...
February 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/27882527/diclofenac-induced-allergic-contact-dermatitis-a-series-of-four-patients
#7
Sandra Jerkovic Gulin, Anca Chiriac
Allergic contact dermatitis is an immune-mediated antigen-specific skin reaction to an allergenic chemical that corresponds to a delayed-type hypersensitivity response (type IV reaction). Allergic contact dermatitis should be suspected when skin lesions are localized to the site of previous applications of the culprit drug. Lesions appear after re-exposure in susceptible persons, with delayed onset (more than 24 h after exposure). The gold standard for diagnosis is patch (epicutaneous) testing; identification and removal of any potential causal agents is crucial...
December 2016: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27881823/nanobodies-that-block-gating-of-the-p2x7-ion-channel-ameliorate-inflammation
#8
Welbeck Danquah, Catherine Meyer-Schwesinger, Björn Rissiek, Carolina Pinto, Arnau Serracant-Prat, Miriam Amadi, Domenica Iacenda, Jan-Hendrik Knop, Anna Hammel, Philine Bergmann, Nicole Schwarz, Joana Assunção, Wendy Rotthier, Friedrich Haag, Eva Tolosa, Peter Bannas, Eric Boué-Grabot, Tim Magnus, Toon Laeremans, Catelijne Stortelers, Friedrich Koch-Nolte
Ion channels are desirable therapeutic targets, yet ion channel-directed drugs with high selectivity and few side effects are still needed. Unlike small-molecule inhibitors, antibodies are highly selective for target antigens but mostly fail to antagonize ion channel functions. Nanobodies-small, single-domain antibody fragments-may overcome these problems. P2X7 is a ligand-gated ion channel that, upon sensing adenosine 5'-triphosphate released by damaged cells, initiates a proinflammatory signaling cascade, including release of cytokines, such as interleukin-1β (IL-1β)...
November 23, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27871981/oral-exposure-to-diisodecyl-phthalate-aggravates-allergic-dermatitis-by-oxidative-stress-and-enhancement-of-thymic-stromal-lymphopoietin
#9
Shiping Shen, Jinquan Li, Huihui You, Zhuo Wu, Yang Wu, Yun Zhao, Yuqing Zhu, Qing Guo, Xiaoxiao Li, Rui Li, Ping Ma, Xu Yang, Mingqing Chen
Diisodecyl phthalate (DIDP) is extensively used as an environmentally friendly plasticizer. However, little is known about the adverse effects and the underlying mechanisms of DIDP exposure on immunological diseases. We aimed to determine the role and mechanisms of DIDP exposure in allergic contact dermatitis-like skin lesions. We show that oral DIDP exposure can aggravate allergic dermatitis in mice. Moreover, an increase of ROS, total serum IgE and IL-4 levels were concomitant with this deterioration. We detected the expression of Thymic stromal lymphopoietin (TSLP) and the activation of STATs and NF-κB signal pathways...
November 18, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27870098/allergic-contact-dermatitis-caused-by-argan-oil-neem-oil-and-mimosa-tenuiflora
#10
Maria M Lauriola, Monica Corazza
No abstract text is available yet for this article.
December 2016: Contact Dermatitis
https://www.readbyqxmd.com/read/27870096/allergic-contact-dermatitis-of-the-face-caused-by-magnolia-officinalis-bark-extract
#11
Trine D Nilausen, Jeanne D Johansen, Jacob P Thyssen
No abstract text is available yet for this article.
December 2016: Contact Dermatitis
https://www.readbyqxmd.com/read/27863430/diisononyl-phthalate-aggravates-allergic-dermatitis-by-activation-of-nf-kb
#12
Jun Kang, Jing Song, Shiping Shen, Baizhan Li, Xu Yang, Mingqing Chen
Several epidemiological studies have suggested a possible link between exposure to Diisononyl phthalate (DINP) and the development of allergies. These findings remain controversial since there is insufficient scientific evidence to assess the ability of DINP to influence allergic immune responses. In addition, the mechanisms behind DINP-caused allergic diseases have not been fully elucidated. In this study, Balb/c mice were orally exposed to DINP for 3 weeks and were then sensitized with fluorescein isothiocyanate (FITC)...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27861990/contact-sensitization-in-dutch-children-and-adolescents-with-and-without-atopic-dermatitis%C3%A2-%C3%A2-a-retrospective-analysis
#13
Stefanie Lubbes, Thomas Rustemeyer, Johannes H Sillevis Smitt, Marie-Louise A Schuttelaar, Maritza A Middelkamp-Hup
BACKGROUND: Allergic contact dermatitis is known to occur in children with and without atopic dermatitis, but more data are needed on contact sensitization profiles in these two groups. OBJECTIVES: To identify frequent allergens in children with and without atopic dermatitis suspected of having allergic contact dermatitis. METHODS: A retrospective analysis of children aged 0-17 years patch tested between 1996 and 2013 was performed. RESULTS: Of all 1012 children tested because of suspected contact dermatitis, 46% developed one or more positive reactions, the proportions for children with (n = 526) and without (n = 395) atopic dermatitis being 48% and 47%, respectively...
November 11, 2016: Contact Dermatitis
https://www.readbyqxmd.com/read/27857991/a-rare-cause-of-emergency-department-visit-euphorbia-helioscopia-contact-dermatitis
#14
Ibrahim Hakan Bucak, Habip Almis, Birgul Tepe, Mehmet Turgut
Emergency department visits due to dermatologic disease is quite rare. Euphorbia helioscopia is a widely distributed plant in rural areas. E. helioscopia related contact dermatitis (Irritant contact dermatitis or allergic contact dermatitis) are known however only a few case reported in literature. We are reporting on three patients with contact dermatitis from E. helioscopia. Irritant contact dermatitis was occurred only one of these cases. This case refused to wash face with water. We recommend washing the face with water after contact with E...
September 2016: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27847179/demonstration-of-rebound-phenomenon-following-abrupt-withdrawal-of-the-jak1-inhibitor-oclacitinib
#15
Tomoki Fukuyama, Joy Rachel Ganchingco, Wolfgang Bäumer
The janus kinase-inhibitor oclacitinib is licensed for the control of pruritus associated with allergic skin diseases in dogs. Strikingly, it has been clinically reported that abrupt withdrawal of oclacitinib leads to a rebound pruritus in dogs. Therefore, the primary objective of this study was to mimic the rebound phenomenon of oclacitinib using a chronic pruritic mouse model of allergic contact dermatitis. Chronic allergic contact dermatitis was induced by repetitive toluene-2,4-diisocyanate (TDI) challenge in BALB/c mice...
November 12, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27846016/botanicals-in-dermatology-essential-oils-botanical-allergens-and-current-regulatory-practices
#16
Sarah Mortimer, Margo Reeder
Largely because of their perceived safety, the use of essential oils and other botanically derived products has become increasingly popular. Recent evidence raises concern about the safety of these products, frequently found in cosmetics and sought as an alternative to standard medical treatments. Essential oils are challenging to standardize because of the variable growing conditions, genetics, and harvesting of botanicals. There exists a potential for adverse reactions, in particular allergic contact dermatitis...
November 2016: Dermatitis
https://www.readbyqxmd.com/read/27845488/contact-dermatitis-and-interferon-%C3%AE-dependent-chemokines
#17
P Fallahi, I Ruffilli
Inflammation of the skin is the pathological base of contact dermatitis (CD), and cytokines are very important in its pathogenesis. Recently it has been shown that interferon (IFN)-γ, and the IFN-γ dependent chemokines, monokine induced by IFN-γ (MIG), IFN-γ-induced protein 10 (IP-10), and IFN-inducible T cell alpha chemoattractant (I-TAC), play an important role in CD. Allergic CD (ACD) is a T-cell-mediated disease in which expression of a distinct repertoire of chemokines results in the recruitment of effector T cells into the skin...
September 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/27834227/allergic-contact-dermatitis-from-acrylic-nails-in-a-flamenco-guitarist
#18
F A Alcántara-Nicolás, M A Pastor-Nieto, C Sánchez-Herreros, R Pérez-Mesonero, V Melgar-Molero, A Ballano, E De-Eusebio
Acrylates are molecules that are well known for their strong sensitizing properties. Historically, many beauticians and individuals using store-bought artificial nail products have developed allergic contact dermatitis from acrylates. More recently, the use of acrylic nails among flamenco guitarists to strengthen their nails has become very popular. A 40-year-old non-atopic male patient working as a flamenco guitarist developed dystrophy, onycholysis and paronychia involving the first four nails of his right hand...
November 7, 2016: Occupational Medicine
https://www.readbyqxmd.com/read/27826010/as-in-atopic-dermatitis-non-lesional-skin-in-allergic-contact-dermatitis-displays-abnormalities-in-barrier-function-and-ceramide-content
#19
Donghye Kim, Noo Ri Lee, Sang-Yeon Park, Myungsoo Jun, Kyohoon Lee, Sunki Kim, Chang Seo Park, Kwang-Hyeon Liu, Eung Ho Choi
No abstract text is available yet for this article.
November 5, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27821781/il-33-st2-signaling-excites-sensory-neurons-and-mediates-itch-response-in-a-mouse-model-of-poison-ivy-contact-allergy
#20
Boyi Liu, Yan Tai, Satyanarayana Achanta, Melanie M Kaelberer, Ana I Caceres, Xiaomei Shao, Jianqiao Fang, Sven-Eric Jordt
Poison ivy-induced allergic contact dermatitis (ACD) is the most common environmental allergic condition in the United States. Case numbers of poison ivy ACD are increasing due to growing biomass and geographical expansion of poison ivy and increasing content of the allergen, urushiol, likely attributable to rising atmospheric CO2 Severe and treatment-resistant itch is the major complaint of affected patients. However, because of limited clinical data and poorly characterized models, the pruritic mechanisms in poison ivy ACD remain unknown...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
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