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Träfflista för sökning "WFRF:(Puangpet Pailin) ;pers:(Matsunaga Kayoko)"

Sökning: WFRF:(Puangpet Pailin) > Matsunaga Kayoko

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  • Lejding, Tina, et al. (författare)
  • Analysis of Hexavalent Chromium in Cement Samples From Countries Within and Outside the EU : A Study From the International Contact Dermatitis Research Group
  • 2023
  • Ingår i: Dermatitis : contact, atopic, occupational, drug. - : Mary Ann Liebert Inc. - 1710-3568. ; 34:4, s. 323-328
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Allergic contact dermatitis (ACD) caused by hexavalent chromium (Cr(VI)) is often severe and difficult to treat. The content of Cr(VI) in cement can be reduced by, for example, addition of iron(II) sulfate. Since 2005 the content of Cr(VI) in cement is regulated in the EU Directive 2003/53/EC and must not exceed 2 ppm. Since this regulation came into force, ACD caused by cement has markedly been reduced. Objective: To investigate Cr(VI) and total chromium content in samples of cement from countries within and outside the EU. Methods: The members of the International Contact Dermatitis Research Group (ICDRG) were invited to participate in the study with the aim to collect cement samples from geographically different areas. The content of Cr(VI) in the samples was estimated by the diphenyl carbazide spot test, atomic absorption spectroscopy was used to assess the total chromium content. Results: Forty-five cement samples were analyzed, containing amounts of Cr(VI) from <0.1 to >70 ppm. Twenty-one samples contained >2 ppm Cr(VI), 24 contained less. Four of 17 samples from within the EU contained >2 ppm Cr(VI), that is, higher amounts than stipulated in the EU directive, as compared with 17 samples from countries outside the EU. Conclusion: In countries outside the EU, significantly more cement samples contained >2 ppm Cr(VI).
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3.
  • Pongpairoj, Korbkarn, et al. (författare)
  • Proposed ICDRG Classification of the Clinical Presentation of Contact Allergy
  • 2016
  • Ingår i: Dermatitis. - 1710-3568. ; 27:5, s. 248-258
  • Forskningsöversikt (refereegranskat)abstract
    • The International Contact Dermatitis Research Group proposes a classification for the clinical presentation of contact allergy. The classification is based primarily on the mode of clinical presentation. The categories are direct exposure/contact dermatitis, mimicking or exacerbation of preexisting eczema, multifactorial dermatitis including allergic contact dermatitis, by proxy, mimicking angioedema, airborne contact dermatitis, photo-induced contact dermatitis, systemic contact dermatitis, noneczematous contact dermatitis, contact urticaria, protein contact dermatitis, respiratory/mucosal symptoms, oral contact dermatitis, erythroderma/exfoliative dermatitis, minor forms of presentation, and extracutaneous manifestations.
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4.
  • Svedman, Cecilia, et al. (författare)
  • Patch Testing With Nickel Sulfate 5.0% Traces Significantly More Contact Allergy Than 2.5% : A Prospective Study Within the International Contact Dermatitis Research Group
  • 2022
  • Ingår i: Dermatitis. - 1710-3568. ; 33:6, s. 417-420
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Nickel allergy is the most common contact allergy, and a nickel salt is, therefore, included in most baseline patch test series. In the baseline series of the International Contact Dermatitis Research Group and the American Contact Dermatitis Society, nickel sulfate hexahydrate (NSH) in petrolatum at 2.5% is included, whereas NSH at 5.0% is included in many other baseline series, such as the European and Swedish ones. Objective The aim of the study is to investigate whether NSH at 5.0% detects significantly more contact allergy than NSH 2.5% when both preparations are tested simultaneously in consecutive dermatitis patients. Patients and Methods Two thousand two hundred eighty-seven consecutive dermatitis patients were patch tested simultaneously with NSH in petrolatum at 2.5% and 5.0%. The allergy rates were compared for all clinics individually and combined using McNemar test, 2-sided. Results Contact allergy to NSH 5.0% and 2.5% was found in 20.3% and 16.8%, respectively (P < 0.0001). In 6 of 11 clinics, significantly more patients tested positive to the higher NSH concentration. For the 2 clinics in North America combined, significantly more patients tested positive to NSH 5.0%. Conclusions The NSH preparation in the International Contact Dermatitis Research Group baseline patch test series should be considered to be changed from NSH 2.5% (1 mg NSH/cm2) to 5.0% (2 mg NSH/cm2).
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