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(Contact dermatitis)

Bruce A Brod, Sharon Jacob
No abstract text is available yet for this article.
February 28, 2018: Dermatitis
Stefanie Kamann, Olivier Aerts, Lutz Heinemann
In the past decade, new diabetes technologies, including continuous glucose monitoring (CGM) systems, support patients with diabetes in their daily struggle with achieving a good glucose control. However, shortly after the first CGM systems appeared on the market, also the first concerns about adverse skin reactions were raised. Most patients claimed to suffer from (sometimes severe) skin irritation, or even allergy, which they related to the (acrylate-based) adhesive part of the device. For a long time the actual substance that caused these skin reactions with, for example, the Flash Glucose Monitoring system (iscCGM; Freestyle® Libre) could not be identified; however, recently Belgian and Swedish dermatologists reported that the majority of their patients that have developed a contact-allergic while using iscCGM react sensitively to a specific acrylate, that is, isobornyl acrylate (IBOA)...
March 1, 2018: Journal of Diabetes Science and Technology
Robert R Gruhl, Andrew Wu, Micah Niermann, Andrew Olson
BACKGROUND: Eczema coxsackium (EC) can manifest in patients with underlying atopic dermatitis (AD) as a diffuse vesicular rash in a febrile child. The presentation overlaps clinically with the feared diagnosis of eczema herpeticum (EH), which makes differentiating between the conditions very important. CASE PRESENTATION: A 6-month-old girl with known AD presented with fever and rapidly spreading vesicular rash. The patient had multiple exposures including a new antibiotic prescription, introduction of new foods, 6-month vaccinations and a sick contact...
November 27, 2017: Diagnosis
Carsten Goebel, Thomas L Diepgen, Brunhilde Blömeke, Anthony A Gaspari, Axel Schnuch, Anne Fuchs, Kordula Schlotmann, Maya Krasteva, Ian Kimber
Occupational exposure of hairdressers to hair dyes has been associated with the development of allergic contact dermatitis (ACD) involving the hands. p-Phenylenediamine (PPD) and toluene-2,5-diamine (PTD) have been implicated as important occupational contact allergens. To conduct a quantitative risk assessment for the induction of contact sensitization to hair dyes in hairdressers, available data from hand rinsing studies following typical occupational exposure conditions to PPD, PTD and resorcinol were assessed...
March 9, 2018: Regulatory Toxicology and Pharmacology: RTP
Yu-Na Im, Yu-Dong Lee, Jeong-Soo Park, Hae-Kyoung Kim, Suhn-Young Im, Hwa-Ryung Song, Hern-Ku Lee, Myung-Kwan Han
Many itch mediators activate G-protein coupled receptor (GPCR), and trigger itch via activation of GPCR-mediated signaling pathways. GPCRs are desensitized by G protein-coupled receptor kinases (GRKs). The aim of this study is to explore the role of GRKs in itch response and the linkage between GRKs and glutamine (Gln), an amino acid previously demonstrated as an itching reliever. Itch responses were evoked by histamine, chloroquine (CQ), and dinitrochlorobenzene (DNCB)-induced contact dermatitis (CD). Phosphorylation and protein expression were detected by immunofluorescent staining and Western blotting...
March 9, 2018: Journal of Investigative Dermatology
Evy Paulsen, Henrik Thormann, Louise Vestergaard
No abstract text is available yet for this article.
April 2018: Contact Dermatitis
David A Rafei-Shamsabadi, Saskia van de Poel, Britta Dorn, Stefanie Kunz, Stefan F Martin, Christoph S N Klose, Sebastian J Arnold, Yakup Tanriver, Karolina Ebert, Andreas Diefenbach, Timotheus Y F Halim, Andrew N J McKenzie, Thilo Jakob
Allergic contact dermatitis and its animal model, contact hypersensitivity (CHS), are T cell-mediated inflammatory skin diseases that require activation of the innate immune system. Here we investigate the role of innate lymphoid cells (ILCs) during the elicitation phase of TNCB-induced CHS using EomesGfp/+ x Rorc(γt)-CreTg x Rosa26RYfp/+ reporter mice. Ear swelling responses, cutaneous ILC numbers and cytokine production were determined at different time points. Functional analyses were performed in a CD90...
March 8, 2018: Journal of Investigative Dermatology
B Diczig, I Németh, Gy Pónyai, M Sárdy
Rosacea is a chronic skin disease characterized by inflammatory processes affecting mainly the center of the face. The pathophysiology is complex, environmental factors seem to play an important role in the exacerbation and worsening of the lesions. The barrier-dysfunction theory in atopic dermatitis has been well described in the literature. This article is protected by copyright. All rights reserved.
March 10, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Hajime Suto, Aya Nambu, Hideaki Morita, Sachiko Yamaguchi, Takafumi Numata, Takamichi Yoshizaki, Eri Shimura, Ken Arae, Yousuke Asada, Kenichiro Motomura, Mari Kaneko, Takaya Abe, Akira Matsuda, Yoichiro Iwakura, Ko Okumura, Hirohisa Saito, Kenji Matsumoto, Katsuko Sudo, Susumu Nakae
BACKGROUND: As well as thymic stromal lymphopoietin (TSLP) and IL-33, IL-25 is known to induce Th2 cytokine production by various cell types-including Th2 cells, Th9 cells, invariant NKT cells and group 2 innate lymphoid cells-involved in Th2-type immune responses. Since both Th2-type and Th17-type cells/cytokines are crucial for contact hypersensitivity (CHS), IL-25 may contribute to this by enhancing Th2-type immune responses. However, the precise role of IL-25 in the pathogenesis of FITC-induced CHS is poorly understood...
March 6, 2018: Journal of Allergy and Clinical Immunology
Luz Fonacier, Irum Noor
OBJECTIVE: Contact dermatitis (CD) is a common disease seen by allergists. Although underutilized, patch testing (PT) remains the gold standard in the diagnosis of allergic CD. It is not difficult to perform, however, the interpretation of the PT, proper classification of the results and determination of their relevance, need an appropriate level of expertise. The objective of this article is to provide a review of CD and its key allergens and provide updates and recommendations for the practicing allergist...
March 6, 2018: Annals of Allergy, Asthma & Immunology
Maria A McGowan, Alina Goldenberg, Sharon E Jacob
No abstract text is available yet for this article.
March 2018: Dermatitis
David A Geier, Janet K Kern, Lisa K Sykes, Mark R Geier
Nelson and Bauman (Pediatrics 111:674-679, 2003) previously hypothesized that pervasive developmental disorder (PDD) was not associated with mercury (Hg) exposure because the medical conditions associated with Hg exposure were not associated with PDD. A hypothesis-testing longitudinal case-control study evaluated the frequency of medically diagnosed conditions previously associated with Hg poisoning, including: epilepsy, dysarthria, failure to thrive, cerebral palsy, or contact dermatitis and other eczema among children preceding their eventual PDD diagnosis (cases) compared to controls...
March 6, 2018: Metabolic Brain Disease
Zuoqi Xiao, Suxi Xiao, Yongning Zhang, Tao Pan, Bo Ouyang
Allergic contact dermatitis (ACD) is a common irritability skin disease, which can be cured by using the Chinese patent medicine. To explore the pharmacological effect of total flavonoids of Fructus Kochiae (FK) on ACD, we used dinitrochlorobenzene- (DNCB-) induced ACD rats. Five groups were used in our experiments. The normal group and the DNCB group were treated with 0.5% CMC-Na; the DNCB + hFK group was treated with a high dose of total flavonoids of FK (200 mg/kg); the DNCB + lFK group was treated with a low dose of FK (100 mg/kg); the DNCB + Pre group was treated with prednisolone acetate (2...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
Giuseppina Caiazzo, Roberta Di Caprio, Serena Lembo, Annunziata Raimondo, Emanuele Scala, Cataldo Patruno, Anna Balato
In this study, we investigated the role of IL-26 in allergic contact dermatitis (ACD), highlighting its contribute in the cytotoxic mechanism responsible of the tissue injury. IL-26 is a signature Th17 cytokine, and immune cells are its predominant sources. Recently, it has shown that Th17 cell-derived-IL-26 functions like an antimicrobial peptide. Here, we hypothesized that IL-26 could be involved in cytotoxicity mechanism, that underlies ACD. Indeed, we have attributed a role to IL-26 in this context, through PBMC cytotoxicity assays versus Hacat...
March 2, 2018: Experimental Dermatology
B Encabo Durán, D Romero-Pérez, J F Silvestre Salvador
Paraphenylenediamine (PPD) is an amine that is mainly used as an ingredient in hair dyes and henna tattoos. The incidence of allergic contact dermatitis to PPD is increasing, particularly in younger patients. In this article, we review the main sources of PPD and the substances with which it can interact and present a practical algorithm for diagnosing and treating suspected cases of PPD allergy.
February 26, 2018: Actas Dermo-sifiliográficas
Bruce A Brod, Sharon Jacob
No abstract text is available yet for this article.
February 28, 2018: Dermatitis
Tian Hao Zhu, Raagini Suresh, Benjamin Farahnik, Caleb Jeon, Erin Warshaw, Pamela Scheinman, Christen Mowad, Nina Botto, Bruce Brod, James S Taylor, Amber Reck Atwater, Kalman Watsky, Peter C Schalock, Brian C Machler, Stephen Helms, Sharon E Jacob, Jenny E Murase
BACKGROUND: Allergic contact dermatitis (ACD) remains a significant burden of disease in the United States. Patch testing is the criterion standard for diagnosing ACD, but its use may be limited by reimbursement challenges. OBJECTIVE: This study aimed to assess the current rate of patch test utilization among dermatologists in academic, group, or private practice settings to understand different patch testing business models that address these reimbursement challenges...
February 28, 2018: Dermatitis
Gabriel Marrero-Alemán, Pedro Saavedra Santana, Federica Liuti, Noelia Hernández, Esmeralda López-Jiménez, Leopoldo Borrego
BACKGROUND: Sensitivity to methylchloroisothiazolinone (MCI)/methylisothiazolinone (MI) has increased rapidly over recent years. This increase is mainly related to the extensive use of high concentrations of MI in cosmetic products, although a growing number of cases of occupational allergic contact dermatitis are caused by MCI/MI. OBJECTIVE: The aim of this study was to examine the association between the increase in MCI/MI sensitization and the work undertaken by the patients in our area...
February 28, 2018: Dermatitis
Megha K Trivedi, Carina M Woodruff, Rachel Kornik, Nina Botto
No abstract text is available yet for this article.
February 28, 2018: Dermatitis
Molly C Goodier, Sanna D Ronkainen, Sara A Hylwa
BACKGROUND: Rubber accelerators play a significant role in glove-related occupational contact dermatitis, especially among health care workers. Currently, there is limited information readily available outlining the accelerators used in specific medical examination and surgical gloves. OBJECTIVE: The aim of this study was to ascertain the accelerators used in medical examination and surgical gloves for major glove manufacturers within the United States. METHODS: An initial Internet-based search was performed to establish relevant manufacturers and product lines, with subsequent inquiry with each corresponding company regarding accelerators used in each medical and surgical glove line...
February 28, 2018: Dermatitis
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