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allergy contact dermatitis

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https://www.readbyqxmd.com/read/28329062/comparison-of-demographic-and-photobiological-features-of-chronic-actinic-dermatitis-in-patients-with-lighter-vs-darker-skin-types
#1
Ki-Wei Tan, Ann K Haylett, Tsui C Ling, Lesley E Rhodes
Importance: Chronic actinic dermatitis (CAD) is classically described in older, white men, although increasing reports describe younger patients with darker skin types, particularly South Asians. Photocontact allergy occurs in CAD but is less studied than contact allergy in this exquisitely photosensitive condition. Objective: To evaluate for differences in demographic and photobiological features between persons with darker and lighter skin types who have CAD. Design, Setting, and Participants: This retrospective review included 70 consecutive adult patients (≥18 years) undergoing investigation for photosensitivity who were diagnosed with CAD from November 1, 2000, through August 31, 2015, at the specialist Photobiology Unit of a tertiary academic referral center...
March 22, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28326907/skin-sensitizers-in-cosmetics-and-beyond-potential-multiple-mechanisms-of-action-and-importance-of-t-cell-assays-for-in-vitro-screening
#2
Stanislav Vukmanović, Nakissa Sadrieh
Allergic contact dermatitis (ACD) is a delayed-type hypersensitivity (DTH) reaction induced by repeated contact with sensitizers. The ability of a chemical to act as a sensitizer has most frequently been tested in animals. As the use of animals for these purposes is gradually and globally being phased out, there is a need for reliable in vitro surrogate assays. Currently proposed in vitro assays are designed to test four key events of the adverse outcome pathway (AOP) involving covalent modification of self-proteins by sensitizers (haptenation) and presentation of new antigens (hapten/carrier complexes) to the immune system...
March 22, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28300444/methylisothiazolinone-contact-allergy-prevalence-in-western-canada
#3
Jessica E Wilford, Gillian C de Gannes
BACKGROUND: Contact allergy to methylisothiazolinone (MI) or to the combination of methylchloroisothiazolinone and MI (MCI/MI) is an important and increasing cause of allergic contact dermatitis, with prevalence rates higher than 10% in some centers. OBJECTIVES: The objective of this retrospective chart review is to provide a western Canadian perspective on whether the positive patch testing rate to MCI/MI or MI increased during the testing period of 2008 to 2015 and whether the addition of MI at 2000 ppm resulted in increased detection...
January 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28296664/histomorphology-and-immunophenotype-of-eczematous-skin-lesions-revisited-skin-biopsies-are-not-reliable-in-differentiating-allergic-contact-dermatitis-irritant-contact-dermatitis-and-atopic-dermatitis
#4
Verena G Frings, Almut Böer-Auer, Kristine Breuer
Lesions of allergic contact dermatitis (ACD), irritant contact dermatitis (ICD), and atopic dermatitis (AD) share similar clinical features and thus, their diagnosis can be challenging. The aim of this study was to reassess histopathology and immunophenotyping properties to distinguish between ACD, ICD, and AD. Charts of patients with eczema, who had undergone complete routine diagnostic workup (skin biopsies, patch tests, skin prick tests, and respectively or serum IgE levels), were reviewed. Thirty-five skin biopsy specimens of 28 patients (mean age 64 ± 15 years; ♀ = 13 ♂ = 15) with clear diagnosis of ACD (n = 15), ICD (n = 6), or AD (n = 14) were analyzed...
March 10, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28295421/effect-of-allergens-and-irritants-on-levels-of-natural-moisturizing-factor-and-corneocyte-morphology
#5
Sjors A Koppes, Suzana Ljubojević Hadžavdić, Ivone Jakasa, Nika Franceschi, Christoph Riethmüller, Ružica Jurakić Tončic, Branka Marinovic, Nidhin Raj, Anthony V Rawlings, Rainer Voegeli, Majella E Lane, Marek Haftek, Monique H W Frings-Dresen, Thomas Rustemeyer, Sanja Kezic
BACKGROUND: The irritant sodium lauryl sulfate (SLS) is known to cause a decrease in the stratum corneum level of natural moisturizing factor (NMF), which in itself is associated with changes in corneocyte surface topography. OBJECTIVE: To explore this phenomenon in allergic contact dermatitis. METHODS: Patch testing was performed on patients with previously positive patch test reactions to potassium dichromate (Cr), nickel sulfate (Ni), methylchloroisothiazolinone (MCI)/methylisothiazolinone (MI), or p-phenylenediamine...
March 14, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28292894/receptor-mincle-promotes-skin-allergies-and-is-capable-of-recognizing-cholesterol-sulfate
#6
Alexey V Kostarnoy, Petya G Gancheva, Bernd Lepenies, Amir I Tukhvatulin, Alina S Dzharullaeva, Nikita B Polyakov, Daniil A Grumov, Daria A Egorova, Andrey Y Kulibin, Maxim A Bobrov, Ekaterina A Malolina, Pavel A Zykin, Andrey I Soloviev, Evgeniy Riabenko, Diana V Maltseva, Dmitry A Sakharov, Alexander G Tonevitsky, Lyudmila V Verkhovskaya, Denis Y Logunov, Boris S Naroditsky, Alexander L Gintsburg
Sterile (noninfected) inflammation underlies the pathogenesis of many widespread diseases, such as allergies and autoimmune diseases. The evolutionarily conserved innate immune system is considered to play a key role in tissue injury recognition and the subsequent development of sterile inflammation; however, the underlying molecular mechanisms are not yet completely understood. Here, we show that cholesterol sulfate, a molecule present in relatively high concentrations in the epithelial layer of barrier tissues, is selectively recognized by Mincle (Clec4e), a C-type lectin receptor of the innate immune system that is strongly up-regulated in response to skin damage...
March 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28291074/contact-allergy-cross-reactions-retrospective-clinical-data-and-review-of-the-literature
#7
Andrew Scheman, Ricky Hipolito, David Severson, Nineveh Youkhanis
We discuss cross-reactions that can occur when a patient allergic to a specific allergen also reacts to a similar allergen. Currently, The American Contact Dermatitis Society Contact Allergy Management Program, which allows physicians to identify safe products for their patients, uses a 10% threshold to distinguish significant cross-reactors. New clinical data from a patch testing center along with previous data in the literature are analyzed to help determine whether current cross-reactor definitions are reasonable or should be altered...
March 2017: Dermatitis
https://www.readbyqxmd.com/read/28291073/contact-allergy-to-ingredients-of-toothpastes
#8
Anton de Groot
The literature on contact allergy to (ingredients of) toothpastes is critically reviewed. We have found 47 case reports, small case series (n = 2-5) and citations published between 1900 and 2016 describing more than 60 patients allergic to toothpastes, and in addition 3 larger case series and many descriptions of toothpaste allergy among selected groups of patients. Allergic reactions usually manifest as cheilitis with or without dermatitis around the mouth, less frequently by oral symptoms. Formerly, many reactions were caused by cinnamon derivatives; more recently, reported allergens are diverse...
March 2017: Dermatitis
https://www.readbyqxmd.com/read/28290621/contact-sensitization-of-children-referred-to-the-dermatology-department-of-the-university-federico-ii-of-naples-italy-a-two-decade-years-history
#9
Serena Lembo, Claudio Lembo, Cataldo Patruno, Pasquale Cuomo, Fabio Ayala, Nicola Balato, Anna Balato
BACKGROUND: Contact sensitization (CS) and allergic contact dermatitis (ACD) were once thought to be rare in children. The aim of our study was to assess CS and ACD in children affected by eczematous conditions referring to our contact and occupational dermatoses service, and to compare the obtained data to the results of a similar study performed in our Department in late eighties. METHODS: A retrospective analysis of patch test data from the Database of Contact Allergy of the Dermatology Department - University Federico II of Naples was performed...
March 14, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28284423/pediatric-allergic-contact-dermatitis-clinical-and-epidemiological-study-in-a-tertiary-hospital
#10
J M Ortiz Salvador, A Esteve Martínez, D Subiabre Ferrer, A M Victoria Martínez, J de la Cuadra Oyanguren, V Zaragoza Ninet
BACKGROUND: Few epidemiological studies have investigated the incidence of allergic contact dermatitis in children. Underdiagnosis has been observed in some studies, with many cases in which the condition is not suspected clinically and patch tests are not performed. However, the prevalence of pediatric sensitization to allergens has been reported to be as high as 20%, and the diagnosis should therefore be contemplated as a possibility in this age group. MATERIAL AND METHODS: We performed a retrospective analysis of the skin allergy database of the Dermatology Department of Consorcio Hospital General Universitario de Valencia...
March 8, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28241280/pediatric-contact-dermatitis-registry-data-on-contact-allergy-in-children-with-atopic-dermatitis
#11
Sharon E Jacob, Maria McGowan, Nanette B Silverberg, Janice L Pelletier, Luz Fonacier, Nico Mousdicas, Doug Powell, Andrew Scheman, Alina Goldenberg
Importance: Atopic dermatitis (AD) and allergic contact dermatitis (ACD) have a dynamic relationship not yet fully understood. Investigation has been limited thus far by a paucity of data on the overlap of these disorders in pediatric patients. Objective: To use data from the Pediatric Contact Dermatitis Registry to elucidate the associations and sensitizations among patients with concomitant AD and ACD. Design, Setting, and Participants: This retrospective case review examined 1142 patch test cases of children younger than 18 years, who were registered between January 1, 2015, and December 31, 2015, by 84 health care providers (physicians, nurse practitioners, physician assistants) from across the United States...
February 22, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28231571/luminex-liquichip-system-for-the-evaluation-of-cytokine-levels-in-patients-with-contact-dermatitis-to-potassium-dichromate
#12
Lehavit Akerman, Tirza Klein, Moshe Israeli, Abigail Fraser, Eti Sagy, Igor Snast, Daniel Mimouni, Michael David, Akiva Trattner
BACKGROUND: Allergic contact dermatitis (ACD) is associated with increased production of cytokines. The patch test is the "gold-standard" diagnostic method, but it poses a risk of false results. OBJECTIVE: To evaluate a novel laboratory technique, the Luminex LiquiChip, which simultaneously measures blood levels of multiple cytokines, as a diagnostic tool in patients with chrome-induced ACD. METHODS: The study group included 20 patients with ACD and relevant patch test results for potassium dichromate and 19 patients with ACD for nickel or fragrance as control...
February 24, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28220565/contact-allergy-to-the-ingredients-of-moisturizers-in-a-boy-with-atopic-dermatitis
#13
Sirje Kaur, Maire Vasar
No abstract text is available yet for this article.
March 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28216728/marine-and-other-aquatic-dermatoses
#14
Surg Capt Jandhyala Sridhar, Surg Cdr Rajeev Deo
Occupational and recreational aquatic activity predisposes our population to a wide variety of dermatoses. Sunburn, urticaria, jellyfish stings, and contact dermatitis to rubber equipment are common allergies that are encountered in the aquatic environment. Among the infections, tinea versicolor, intertrigo, and verruca vulgaris are widespread. Swimmer's itch may occur due to skin penetration by schistosome cercariae, while free-floating nematocysts of marine coelenterates may precipitate seabather's eruption...
January 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28203266/occupational-contact-dermatitis-from-protein-in-sea-products-who-is-the-most-affected-the-fisherman-or-the-chef
#15
B Loddé, P Cros, A M Roguedas-Contios, R Pougnet, D Lucas, J D Dewitte, L Misery
BACKGROUND: Protein contact dermatitis has frequently been reported in case studies (usually in cases involving contact with seafood products), but there are very few descriptive series. The objectives of this present study were firstly to determine the incidence of protein contact dermatitis among fishermen in France and compare it with data from onshore work involving seafood exposure. Second, to discover what factors could explain any differences. In order to answer these questions we analysed data from the French national occupational disease surveillance and prevention network (RNV3P) and occupational diseases declared to the French National Network for Monitoring and Prevention of Occupational Disease...
2017: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/28174143/contact-allergy-caused-by-isothiazolinone-derivatives-an-overview-of-non-cosmetic-and-unusual-cosmetic-sources
#16
Olivier Aerts, An Goossens, Julien Lambert, Jean-Pierre Lepoittevin
The isothiazolinone derivatives, methylchloroisothiazolinone (MCI), methylisothiazolinone (MI), benzisothiazolinone (BIT), and octylisothiazolinone (OIT), owing to their strong bactericide, fungicide and algicide properties, are widely used in non-cosmetic products, such as chemical (industrial) products, household detergents, and water-based paints, and the former two derivatives are also used in cosmetic products. However, given their inherent sensitization potential (with MCI > MI > BIT > OIT), allergic contact dermatitis is frequently observed, both in consumers as well as workers in various industries...
February 3, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28169852/gallate-contact-dermatitis-product-update-and-systematic-review
#17
Zachary E Holcomb, Megan G Van Noord, Amber Reck Atwater
Allergic contact dermatitis related to cosmetic use can result from allergens not routinely evaluated by standard patch test protocols. Propyl, octyl, and dodecyl gallates are commonly used antioxidant preservatives with reports of associated allergic contact dermatitis in the literature. The objectives of this review were to investigate the role of gallates in allergic contact dermatitis and to explore products containing these preservatives. A systematic review of the literature through April 2016 was performed to explore cases of reported gallate allergy...
March 2017: Dermatitis
https://www.readbyqxmd.com/read/28168422/contact-allergy-to-preservatives-in-patients-with-occupational-contact-dermatitis-and-exposure-analysis-of-preservatives-in-registered-chemical-products-for-occupational-use
#18
Jakob Ferløv Schwensen, Ulrik Fischer Friis, Torkil Menné, Mari-Ann Flyvholm, Jeanne Duus Johansen
PURPOSE: The aim of the study is to investigate risk factors for sensitization to preservatives and to examine to which extent different preservatives are registered in chemical products for occupational use in Denmark. METHODS: A retrospective epidemiological observational analysis of data from a university hospital was conducted. All patients had occupational contact dermatitis and were consecutively patch tested with 11 preservatives from the European baseline series and extended patch test series during a 5-year period: 2009-2013...
February 6, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28157173/contact%C3%A2-dermatitis%C3%A2-due%C3%A2-to%C3%A2-nickel%C3%A2-allergy%C3%A2-in%C3%A2-patients-suffering%C3%A2-from%C3%A2-non-celiac%C3%A2-wheat%C3%A2-sensitivity
#19
Alberto D'Alcamo, Pasquale Mansueto, Maurizio Soresi, Rosario Iacobucci, Francesco La Blasca, Girolamo Geraci, Francesca Cavataio, Francesca Fayer, Andrea Arini, Laura Di Stefano, Giuseppe Iacono, Liana Bosco, Antonio Carroccio
BACKGROUND:  Non-celiac wheat sensitivity (NCWS) is a new clinical entity in the world of  gluten-related diseases. Nickel, the most frequent cause of contact allergy, can be found in wheat  and results in systemic nickel allergy syndrome and mimics irritable bowel syndrome (IBS).  Objective: To evaluate the frequency of contact dermatitis due to nickel allergy in NCWS patients  diagnosed by a double-blind placebo-controlled(DBPC)challenge,and to identify  the  characteristics  of  NCWS  patients  with  nickel  allergy...
February 2, 2017: Nutrients
https://www.readbyqxmd.com/read/28128086/vesicular-contact-reaction-may-progress-into-erythema-multiforme
#20
Magdalena Czarnecka-Operacz, Dorota Jenerowicz, Joanna Szulczyńska-Gabor, Ewa Teresiak-Mikołajczak, Joanna Szyfter-Harris, Monika Bowszyc-Dmochowska
Dear Editor, Erythema multiforme is considered an acute skin condition, characterized by a self-limiting and sometimes recurrent course. It is regarded as a type IV hypersensitivity reaction associated with certain infections, medications, and other various triggers. Allergic contact dermatitis is in turn a delayed type of induced allergy as a result of cutaneous contact with a specific allergen to which the patient develops specific sensitivity. This type of cutaneous reaction is associated with inflammation manifesting with erythema, edema, and vesicles...
December 2016: Acta Dermatovenerologica Croatica: ADC
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