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Allergic skin disease

Giuseppe Ruggiero, Claudia Carnevale, Andrea Diociaiuti, Fabio Arcangeli, May El Hachem
BACKGROUND: Contact dermatitis can be defined as an inflammatory process affecting the skin surface and induced by contact with chemical, physical and/or biotic agents in the environment. It causes lesions to skin, mucosae and semi-mucosae by means of allergic and irritant pathogenic mechanisms. Among the main triggers of contact dermatitis in the pediatric age are chemical or physical agents, which cause irritant contact dermatitis (ICD), and sensitizers, which cause a tissue damage through an allergic mechanism (allergic contact dermatitis [ACD])...
December 2016: Minerva Pediatrica
Kim Heang Ly, François Dalmay, Guillaume Gondran, Sylvain Palat, Holy Bezanahary, Anne Cypierre, Anne-Laure Fauchais, Eric Liozon
Although a glucocorticoid (GC)-sparing strategy is needed for patients with giant cell arteritis (GCA) suffering from refractory disease or serious treatment-related complications, evidence of efficacy in this setting of immunosuppressive drugs and biotherapies is lacking. Herein, we evaluated the GC-sparing effects and tolerability of addition of dapsone (DDS) to prednisone therapy in patients with GCA. We retrospectively assessed data on 18 GCA patients who received DDS as a first-line treatment (DDS-1 group) and 52 patients who received it as a second- or third-line treatment for refractory GCA, with or without excessive GC-related toxicity (DDS-2 group)...
October 2016: Medicine (Baltimore)
C Gonçalves, G Wandalsen, F Lanza, A L Goulart, D Solé, A Dos Santos
BACKGROUND: Prevalence of allergic diseases and impaired pulmonary function may be high in children born prematurely. This study aimed to assess pulmonary function and prevalence of asthma, atopic diseases and allergic sensitisation in these patients. METHODS: A cross-sectional study was conducted with children aged 6-14 years who were born prematurely with birth weight <2000g from January 2008 to May 2011. Exclusion criteria were: major malformations, or acute respiratory disorders...
October 15, 2016: Allergologia et Immunopathologia
Christian Adam, Jonas Wohlfarth, Maike Haußmann, Helga Sennefelder, Annette Rodin, Mareike Maler, Stefan F Martin, Matthias Goebeler, Marc Schmidt
Chromium allergy is a common occupational skin disease mediated by chromium (VI)-specific T cells that induce delayed-type hypersensitivity in sensitized individuals. Additionally, chromium (VI) can act as irritant. Both responses critically require innate immune activation, but if and how chromium (VI) elicits this signal is currently unclear.Using human monocytes, primary human keratinocytes and murine dendritic cells we show that chromium (VI) compounds fail to trigger direct proinflammatory activation but potently induce processing and secretion of IL-1β...
October 14, 2016: Journal of Investigative Dermatology
John Wei-Liang Tan, Carolina Valerio, Elizabeth H Barnes, Paul J Turner, Peter A Van Asperen, Alyson M Kakakios, Dianne E Campbell
BACKGROUND: Epidemiological evidence suggests delayed introduction of egg may not protect against egg allergy in infants at risk of allergic disease. OBJECTIVE: To assess whether dietary introduction of egg between 4-6 months in infants at risk of allergy would reduce sensitization to egg. METHODS: We conducted a randomized controlled trial in infants with at least one first-degree relative with allergic disease. Infants with a skin prick test to egg white (EW-SPT) <2mm were randomized at age 4 months to receive whole-egg powder or placebo (rice powder) until 8-months of age, with all other dietary egg excluded...
October 11, 2016: Journal of Allergy and Clinical Immunology
Melanie M Makhija, Rachel G Robison, Deanna Caruso, Miao Cai, Xiaobin Wang, Jacqueline A Pongracic
BACKGROUND: Sensitization in adults has not been extensively studied. OBJECTIVE: To investigate patterns of allergen sensitization in parents of food allergic children and to compare self-report of allergic disease with specific IgE (sIgE) measurements. METHODS: A total of 1,252 mothers and 1,225 fathers of food allergic children answered standardized questionnaires about demographics, home environment, history of atopic diseases, and food allergy...
October 2016: Annals of Allergy, Asthma & Immunology
Michele Miraglia Del Giudice, Annalisa Allegorico
The role of vitamin D in calcium and phosphate homeostasis is well known; however, in addition to traditional functions, vitamin D modulates a variety of processes, and evidence shows that it has an important role in different allergic diseases such as asthma, atopic dermatitis, and food allergy. Vitamin D acts by binding to the vitamin D receptor, which is present in a variety of tissues; for this reason it is considered a hormone. One of the most important functions is to modulate the immune system response, both innate and adaptive, by suppressing Th2-type response and increasing natural killer cells...
November 2016: Journal of Clinical Gastroenterology
Peter Lorenz, Miriam Heinrich, Manuel Garcia-Käufer, Franziska Grunewald, Silke Messerschmidt, Anja Herrick, Kim Gruber, Christiane Beckmann, Matthias Knoedler, Roman Huber, Carmen Steinborn, Florian C Stintzing, Carsten Gründemann
ETHNOPHARMACOLOGICAL RELEVANCE: Oak bark has been used since ancient times in Europaen ethnomedicine because of its adstringent, antimicrobial and hemostatic features, e.g. as a remedy for the treatment of wounds and skin diseases. PURPOSE: Oak bark tannins are considered as bioactive natural products, interacting with surface proteins of mucous membranes and might be beneficial for the treatment of allergic diseases. This study investigated the effect of an oak bark decoction (OBD) and isolated tannin fractions on the degranulation capacity and cytokine/chemokine release from rat basophilic cells and human mast cells in vitro, which are essential for the initiation of early- and late-phase allergic reactions...
October 7, 2016: Journal of Ethnopharmacology
Alicia R Mathers, Cara D Carey, Meaghan E Killeen, Julio Diaz-Perez, Sonia R Salvatore, Francisco J Schopfer, Bruce A Freeman, Louis D Falo
BACKGROUND: Reactions between nitric oxide (NO), nitrite (NO2(-) ), and unsaturated fatty acids give rise to electrophilic nitro-fatty acids (NO2 -FAs), such as nitro-oleic acid (OA-NO2 ) and nitro-linoleic acid (LNO2 ). Endogenous electrophilic fatty acids (EFAs) mediate anti-inflammatory responses by modulating metabolic and inflammatory signal transduction reactions. Hence, there is considerable interest in employing NO2 -FAs and other EFAs for the prevention and treatment of inflammatory disorders...
October 8, 2016: Allergy
Kelsey Stover, Tomoki Fukuyama, Ashlyn T Young, Michael A Daniele, Rebecca Oberley, James D Crapo, Wolfgang Bäumer
In this study, we topically administered two antioxidant compounds, the manganese-porphyrin-derivatives BMX-001 and BMX-010, in a mouse model of allergic dermatitis and compared the efficacy for reduction of itch and inflammation. In vitro effects of BMX-001 and BMX-010 on keratinocytes, bone marrow derived dendritic cells (BMDCs) and T-cells were initially analysed. For assessment of scratching behaviour, BMX-001 and BMX-010 (0.01 and 0.1 %) were topically applied 16 h and/or 1 h before compound 48/80 or toluene-2,4,-diisocyanate (TDI) challenge in a TDI induced mouse dermatitis model...
October 5, 2016: Archives of Dermatological Research
Marie de Bourayne, Yann Gallais, Zeina El Ali, Philippe Rousseau, Marie-Hélène Damiens, Claude Cochet, Odile Filhol, Sylvie Chollet-Martin, Marc Pallardy, Saadia Kerdine-Römer
Allergic contact dermatitis (ACD) represents a severe health problem with increasing worldwide prevalence. It is a T-cell-mediated inflammatory skin disease caused by chemicals present in the daily or professional environment. NiSO4 and 2,4-dinitrochlorobenzene (DNCB) are 2 chemicals involved in ACD. These contact sensitizers are known to induce an up-regulation of phenotypic markers and cytokine secretion in dendritic cells (DCs; professional APCs), leading to the generation of CD8(+) Tc1/Tc17 and CD4(+) Th1/Th17 effector T cells...
October 5, 2016: Journal of Leukocyte Biology
Antonella Muraro, Brecht Steelant, Sirpa Pietikainen, David Borrelli, Nessa Childers, Ina Callebaut, Inge Kortekaas Krohn, Katleen Martens, Benoit Pugin, Florin Dan-Popescu, Mariana Vieru, Marek Jutel, Ioana Agache, Peter W Hellings
From the 26th to the 28th of April 2016, an allergy awareness campaign was organized by the European Academy of Allergy and Clinical Immunology (EAACI) and the European Federation of Allergy and Airway Diseases Patients Associations (EFA) in the European Parliament in Brussels, with support of the European Parliament's Interest group on Allergy and Asthma and was co-hosted by the Members of the European Parliament (MEP) David Borrelli, Sirpa Pietikainen and Nessa Childers. Skin prick tests (SPT) were performed to gain attention for the increasing prevalence of allergic airways diseases in Europe...
October 3, 2016: Allergy
Amy E Mitchell, Jennifer A Fraser, Alina Morawska, Joanne Ramsbotham, Patsy Yates
BACKGROUND: The development of child behaviour and parenting difficulties is understood to undermine treatment outcomes for children with atopic dermatitis. Past research has reported on correlates of child behaviour difficulties. However, few research studies have sought to examine parenting confidence and practices in this clinical group. OBJECTIVES: To examine relationships between child, parent, and family variables, parent-reported and directly-observed child and parent behaviour, parents' self-efficacy with managing difficult child behaviour, self-reported parenting strategies, and disease severity...
September 23, 2016: International Journal of Nursing Studies
Raquel Moya, Jerónimo Carnés, Nuria Sinovas, Laura Ramió, Pilar Brazis, Anna Puigdemont
BACKGROUND: Canine atopic dermatitis is a pruritic allergic skin disease. House dust mites have been identified as the main non-seasonal responsible agent. Unlike in human allergic patients, groups 1 and 2 antigens have been described as minor allergens in dogs, while groups 15 and 18 are considered the major allergens. Despite these differences, allergic dogs have traditionally been treated using extracts intended for human immunotherapy. OBJECTIVES: To investigate the immunological characteristics and the allergen reactivity of dogs with atopic dermatitis using a Dermatophagoides farinae commercial extract...
November 1, 2016: Veterinary Immunology and Immunopathology
Yayoi Kamata, Utako Kimura, Hironori Matsuda, Suhandy Tengara, Atsuko Kamo, Yoshie Umehara, Kyoichi Iizumi, Hiroaki Kawasaki, Yasushi Suga, Hideoki Ogawa, Mitsutoshi Tominaga, Kenji Takamori
BACKGROUND: Atopic dermatitis (AD) is a multifactorial inflammatory skin disease characterized by skin barrier dysfunction, allergic inflammation and intractable pruritus resistant to conventional antipruritic treatments, including H1-antihistamines. Granzymes (Gzms) are a family of serine proteases expressed by cytotoxic T lymphocytes and natural killer cells that have been shown to modulate inflammation. However, the relationship between Gzms and pathology in AD remains unclear. OBJECTIVE: This study assessed the correlation between plasma GzmB levels and severity of pruritus and dermatitis, in AD patients...
September 15, 2016: Journal of Dermatological Science
F M Carlier, Y Sibille, C Pilette
Airway and intestinal epithelial layers represent first-line physical barriers, playing a key role in mucosal immunity. Barrier dysfunction, characterized by alterations such as disruption of cell-cell apical junctions and aberrant epithelial responses, probably constitutes early and key events for chronic immune responses to environmental antigens in the skin and in the gut. For instance, barrier dysfunction drives Th2 responses in atopic disorders or eosinophilic esophagitis. Such epithelial impairment is also a salient feature of allergic asthma and growing evidence indicates that barrier alterations probably play a driving role in this disease...
September 29, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Martin Mowitz, Erik Zimerson, Inese Hauksson, Ann Pontén
BACKGROUND: Five workers from a plant manufacturing concrete wall panels and beams were referred to our department because of suspected occupational dermatitis. When patch tested, 3 workers reacted to potassium dichromate. Four workers reacted to ethylenediamine dihydrochloride, without any obvious exposure. Owing to the high proportion of workers with recent-onset skin disease, an investigation of all workers at the plant was initiated. OBJECTIVES: To investigate the prevalence of occupational dermatitis and contact allergy in the workers at the plant...
September 23, 2016: Contact Dermatitis
Anna Dor-Wojnarowska, Jerzy Liebhart, Jadwiga Miecielica, Marek Rabski, Andrzej Fal, Bolesław Samoliński, Marita Nittner-Marszalska
The objective of our study was to evaluate the impact of sex and age on the prevalence of sensitization to inhalant allergens. The study was performed as a part of Polish Epidemiology of Allergic Diseases study, and data concerning citizens of Wroclaw were analyzed. The participants were divided into three age groups (6-7, 13-14, and 20-44 years) with a subdivision according to sex. We randomly selected 1409 individuals, 439 people complied; the complete set of tests was performed on 421 of them. We found that 37...
September 20, 2016: Archivum Immunologiae et Therapiae Experimentalis
Chen Xiaohong, X U Yiping, L U Meiping
OBJECTIVE: To analyze the clinical characteristics and etiology of hypereosinophilia in children. METHODS: Clinical data of 88 children with hypereosinophilia admitted in Children's Hospital of Zhejiang University School of Medicine during April 2009 and May 2015 were retrospectively reviewed. The clinical manifestations, etiologies, and the correlation of disease severity with different etiologies were analyzed. RESULTS: The main clinical manifestations were fever, abdominal pain, cough and/or tachypnea, skin rash, hemafecia and diarrhea, which were observed in 19 (21...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
Takaaki Doi, Yoshiko Mizukawa, Yurie Shimoda, Yoshimi Yamazaki, Tetsuo Shiohara
Although a marked rise in the prevalence of allergic diseases over the past few decades may be related to environmental factors in industrialized countries, evidence for the protective effect of humidity on the barrier function of the skin is still awaited. We asked whether an increase in the water content of stratum corneum (SC) at the site of hapten application had a strong impact on the magnitude of contact hypersensitivity (CHS). The magnitude of CHS, induced by either lipid-soluble or water-soluble hapten, was inversely correlated with the water content of SC at the hapten application site in the elicitation phase...
September 17, 2016: Journal of Investigative Dermatology
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