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Contact dermatitis

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https://www.readbyqxmd.com/read/29046191/interleukin-31-and-skin-diseases-a-systematic-review
#1
Sebastiano Gangemi, Sebastiano Quartuccio, Marco Casciaro, Giovanni Trapani, Paola Lucia Minciullo, Egidio Imbalzano
BACKGROUND: Although the pathophysiology of pruritus has been extensively studied in recent years, with many resultant advancements, management of pruritus is still enigmatic, particularly in chronic cutaneous diseases, such as atopic dermatitis, chronic urticaria, allergic contact dermatitis, cutaneous T-cell lymphoma, and uremic pruritus. The recent finding of the involvement of interleukin (IL) 31 in the pathogenesis of chronic pruritus has provided a novel approach to the management of chronic inflammatory skin disorders...
November 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29044554/contact-dermatitis-caused-by-a-new-rubber-compound-detected-in-canvas-shoes
#2
Eva Hulstaert, Ola Bergendorff, Christina Persson, An Goossens, Liesbeth Gilissen, Malin Engfeldt, Magnus Bruze, Marie L Schuttelaar, Joost M Meijer, Hilde Lapeere
BACKGROUND: In 2015 and 2016, female patients in Flanders consulted a dermatologist because they developed skin lesions after wearing a specific brand of canvas shoes. OBJECTIVES: To identify the culprit allergen in the shoes. METHODS: Eighteen young females aged 14-22 years presented with itching and erythematous to purple-coloured eczematous lesions on both feet. They were patch tested by 10 dermatologists with the European baseline series...
October 17, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/29043089/dermal-and-neural-toxicity-caused-by-acrylamide-exposure-in-two-korean-grouting-workers-a-case-report
#3
Heeyun Kim, Sang Gil Lee, Jeongbae Rhie
BACKGROUND: Peripheral neuritis caused by acrylamide is well-known, and many Korean grouting workers are frequently exposed to acrylamide in grouting agents that are injected into cracked concrete. We recently encountered two cases of dermal and neural toxicity in Korean grouting workers with exposure to grouting agents that contained a high concentration of acrylamide. CASE PRESENTATION: The first case involved a 44-year-old man with 8 years of waterproofing experience...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29032222/molecular-mechanisms-of-nickel-induced-neurotoxicity-and-chemoprevention
#4
REVIEW
Xin Song, Samuel Selorm Fiatikenston, Lu Kong, Jinshun Zhao
Nickel (Ni) is widely used in many industrial sectors such as alloy, welding, printing inks, electrical and electronics industries. Excessive environmental or occupational exposure to Ni may result in tumor, contact dermatitis, as well as damages to the nervous system. In recent years, more and more research has demonstrated that Ni induced nerve damages are related to mitochondrial dysfunction. In this paper, we try to characterize Ni induced neurotoxicity as well as the underlying mechanisms, and how to find new drugs for chemoprevention, by reviewing chemicals with neuroprotective effects on Ni induced neurotoxicity...
October 11, 2017: Toxicology
https://www.readbyqxmd.com/read/29031485/allergic-contact-dermatitis-by-anatomical-regions-diagnostic-clues
#5
E Rozas-Muñoz, D Gamé, E Serra-Baldrich
Allergic contact dermatitis (ACD) is a common disease in daily clinical practice, and its prevalence has increased in recent years. It is characterized clinically by varying degrees of erythema, vesiculation, flaking, and lichenification, though these signs can also be present in other eczematous diseases. Patch testing is the main diagnostic tool to confirm ACD, but its accurate interpretation requires correct correlation with the medical history (details of exposure) and physical examination. We provide a practical and instructive description of the most common clinical patters of ACD depending on the area affected...
October 11, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/29029920/mitigation-or-prevention-of-mild-hair-dye-contact-dermatitis-after-pretreatment-with-clobetasol-foam
#6
Jace Rickstrew, Ting Wang, Deede Liu, Anand Rajpara, Daniel J Aires
No abstract text is available yet for this article.
November 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29029310/fragrance-allergens-linalool-and-limonene-allylic-hydroperoxides-in-skin-allergy-mechanisms-of-action-focusing-on-transcription-factor-nrf2
#7
Chloé Raffalli, Elodie Clouet, Salen Kuresepi, Marie-Hélène Damiens, Jean-Pierre Lepoittevin, Marc Pallardy, Pierre-Jacques Ferret, Elena Giménez-Arnau, Saadia Kerdine-Römer
Allergic contact dermatitis (ACD) is regarded as the most frequent expression of immunotoxicity in humans. Many odorant terpenes commonly used in fragrance compositions are considered as weak skin sensitizers, whereas some of their autoxidation products, allylic hydroperoxides, are classified as strong sensitizers according to the Local Lymph Node Assay (LLNA). However, the mechanism of their effects on the immune system remains unclear. Since dendritic cells play a key role in ACD, we studied their activation by the frequently used linalool (LINA) and limonene (LIMO), and their respective sensitizing allylic hydroperoxides (LINA-OOH, LIMO-OOH)...
September 29, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29024017/most-common-dermatology-diagnoses-to-the-emergency-department-in-the-pediatric-population
#8
Anish Nadkarni, Leah A Cardwell, Simon Mahler, Steven R Feldman
Skin related complaints are a top 10 reason for pediatric presentation to the ED. Older studies and those conducted outside of the US demonstrate wide variability in the frequency of pediatric presentations to the ED for skin complaints, ranging from 4-40% of visits.(1) One study found urticaria to be the most frequent PED dermatological diagnosis, while others found viral exanthema and contact dermatitis to be the most common diagnoses. This article is protected by copyright. All rights reserved.
October 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29023909/risks-of-allergic-contact-dermatitis-elicited-by-nickel-chromium-and-organic-sensitizers-quantitative-models-based-on-clinical-patch-test-data
#9
Kenneth T Bogen, Michael R Garry
Risks of allergic contact dermatitis (ACD) from consumer products intended for extended (nonpiercing) dermal contact are regulated by E.U. Directive EN 1811 that limits released Ni to a weekly equivalent dermal load of ≤0.5 μg/cm(2) . Similar approaches for thousands of known organic sensitizers are hampered by inability to quantify respective ACD-elicitation risk levels. To help address this gap, normalized values of cumulative risk for eliciting a positive ("≥+") clinical patch test response reported in 12 studies for a total of n = 625 Ni-sensitized patients were modeled in relation to observed ACD-eliciting Ni loads, yielding an approximate lognormal (LN) distribution with a geometric mean and standard deviation of GMNi = 15 μg/cm(2) and GSDNi = 8...
October 11, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/29019405/chemical-constituents-of-bryophytes-structures-and-biological-activity
#10
Yoshinori Asakawa, Agnieszka Ludwiczuk
Comparatively little attention has been paid to the bryophytes for use in the human diet or medicine in spite of the presence of 23 000 species globally. Several hundred new compounds have been isolated from the liverworts (Marchantiophyta), and more than 40 new carbon skeletons of terpenoids and aromatic compounds were found. Most of the liverworts studied elaborate characteristic odiferous, pungent, and bitter-tasting compounds, of which many show antimicrobial, antifungal, antiviral, allergic contact dermatitis, cytotoxic, insecticidal, anti-HIV, plant growth regulatory, neurotrophic, NO production and superoxide anion radical release inhibitory, muscle relaxing, antiobesity, piscicidal, and nematocidal activities...
October 11, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28986935/diagnosis-and-management-of-diaper-dermatitis-in-infants-with-emphasis-on-skin-microbiota-in-the-diaper-area
#11
REVIEW
Maja Šikić Pogačar, Uroš Maver, Nataša Marčun Varda, Dušanka Mičetić-Turk
Diaper dermatitis is the most common inflammatory skin eruption within the diaper area in infants and toddlers. Although it rarely causes problems for prolonged periods of time, it causes considerable distress for both infants and parents. Diapered skin is exposed to friction, excessive hydration, varying pH, and is in constant contact with urine and feces, both of which are highly irritant to the skin. The three most common types of diaper dermatitis include chaffing dermatitis, irritant contact dermatitis, and diaper candidiasis...
October 6, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28982342/in-vitro-effects-of-polyphenols-on-the-peripheral-immune-responses-in-nickel-sensitized-patients
#12
Thea Magrone, Paolo Romita, Pietro Verni, Rosaria Salvatore, Anna Spagnoletta, Manrico Magrone, Matteo Antonio Russo, Emilio Jirillo, Caterina Foti
BACKGROUND: Nickel (Ni) is a metal largely present in the environment and prolonged exposure to it may lead to multiple pathological conditions in human subjects. Among these, the most frequent is allergic contact dermatitis. METHODS: Peripheral blood mononuclear cells isolated from 25 patients with Ni-dependent contact dermatitis were evaluated in terms of cytokine release and nitric oxide (NO) production in the presence or absence of two doses (3 and 5 μg, respectively) of polyphenols...
October 3, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28981804/proteome-analysis-of-urticating-setae-from-thaumetopoea-pityocampa-lepidoptera-notodontidae
#13
L Berardi, M Pivato, G Arrigoni, E Mitali, A R Trentin, M Olivieri, C Kerdelhué, F Dorkeld, S Nidelet, E Dubois, A Battisti, A Masi
Thaumetopoea pityocampa (Denis & Schiffermüller) (Lepidoptera: Notodontidae) is harmful to conifer trees because of defoliation and to public health because of the release of urticating setae from the caterpillars. Contact with setae by humans and domestic animals induces dermatitis, usually localized to the exposed areas. Recent studies demonstrated the presence of a complex urticating mechanism where proteins present in the setae may play a role as activators of immune responses. Yet, limited information is available at present about the proteins occurring in the setae of T...
July 21, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28979873/paederus-dermatitis-a-case-series
#14
Sahana Srihari, Ashwini P Kombettu, Kanthraj G Rudrappa, Jayadev Betkerur
Vorderman (1901) was the first to record blisters caused by beetles in medical literature. Blister beetle dermatitis is a cutaneous condition caused by the toxins released by blister beetles. The vesicant chemical in the body fluids of these insects causes an acute irritant contact dermatitis characterized by erythematovesicular lesions associated with burning sensation on exposed parts of the body. The aim of this study was to investigate the morphological patterns of blister beetle dermatitis. We conducted a 1-year (January-December 2014) prospective study of the clinical presentation of Paederus dermatitis noticed in urban and semiurban areas close to paddy fields in the Cauvery Basin, Mysuru, Karnataka...
September 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28979863/patch-testing-in-patients-with-suspected-footwear-dermatitis-a-retrospective-study
#15
Taru Garg, Soumya Agarwal, Shiwangi Rana, Ram Chander
BACKGROUND: Footwear dermatitis represents a common but often undiagnosed or misdiagnosed condition. Patch testing aids in its confirmation and identification of the offending allergen. AIMS: This study aimed to find the frequency of positive patch test reactions in cases with suspected allergic contact dermatitis (ACD) to footwear, as well as the common responsible allergens. MATERIALS AND METHODS: This is a retrospective record based study of 37 patients, with suspected ACD to footwear, who underwent patch testing with Indian standard series and Indian footwear series from July 2012 to July 2015...
September 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28977706/dust-mite-induces-multiple-polar-t-cell-axes-in-human-skin
#16
Kunal Malik, Benjamin Ungar, Sandra Garcet, Riana Dutt, Daniel Dickstein, Xiuzhong Zheng, Hui Xu, Yeriel D Estrada, Mayte Suárez-Fariñas, Avner Shemer, James G Krueger, Emma Guttman-Yassky
BACKGROUND: House dust mite/HDM atopy patch test/APT elicits positive reactions in a high fraction of atopic dermatitis/AD and healthy individuals. Experimental systems for new-onset/chronic AD are needed to support rapid therapeutic development, particularly since animal models representing human AD are lacking. While HDM APT has been considered to simulate AD, its suitability to model AD's emerging Th2/Th22 phenotype with Th1 and Th17 components is unknown. OBJECTIVE: To assess whether HDM APT reproduces AD...
October 4, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28972093/the-cooperative-role-of-cd326-and-cd11b-dendritic-cell-subsets-for-a-hapten-induced-th2-differentiation
#17
Yuri Cho, Dohyeong Kwon, Suk-Jo Kang
Dendritic cells (DCs) play a critical role in directing immune responses. Previous studies have identified a variety of DC subsets and elucidated their context-dependent functions that parallel those of effector Th cell subsets. However, little is known about the DC subsets responsible for differentiation of Th2 cells governing allergic contact dermatitis. In this study, we sought to determine the DC subset(s) that mediate Th2 priming in hapten-sensitized mice. We induced hapten-specific Th2 differentiation by sensitizing the mice with a single application of FITC dissolved in acetone:dibutyl phthalate, and traced the immune cells responsible for inducing the Th2 differentiation process at the primary stimulation, enabling us to track Th2 priming in vivo and to delete basophils and specific DC subsets...
October 2, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28971138/allergic-contact-dermatitis-to-2-octyl-cyanoacrylate-after-surgical-repair-humidity-as-a-potential-factor
#18
Avi Bitterman, Karanjit Sandhu
No abstract text is available yet for this article.
November 2017: JAAD Case Reports
https://www.readbyqxmd.com/read/28969846/prospective-single-center-observational-study-of-the-allergenic-potential-of-mercromina-film-and-other-common-antiseptics-in-patients-with-contact-dermatitis
#19
S Baltà Cruz, N Moreno Ribera, M T Estrach Panella
INTRODUCTION: Although Mercromina Film and other topical antiseptics are widely used, they are not included in the standard series recommended by the Spanish Contact Dermatitis and Skin Allergy Research Group for testing suspected allergic contact dermatitis (ACD). Furthermore, no recent studies have investigated the allergenic potential of merbromin. OBJECTIVE: To determine the allergenic potential of merbromin and compare it with that of other topical antiseptics widely used in clinical practice, including povidone-iodine, chlorhexidine, and eosin...
September 29, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28969253/patch-test-results-from-an-occupational-and-contact-dermatitis-clinic-in-a-tertiary-care-hospital-of-southern-india-a-retrospective-study
#20
Kumaravel Sadagopan, Deepa Kalappan, Nirmala Sivaprakasam, Vinoth
INTRODUCTION: Occupational contact dermatitis, accounting for 95% of cases of occupational dermatoses, is the most common occupational skin disease. AIM: To find out the various allergens in different occupational and environmental settings causing contact allergy, from our patients presented with contact dermatitis. MATERIALS AND METHODS: It was a retrospective study from the data in hospital outpatient register over one year period, which includes patients with age ranging from 11 years to 73 years...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
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