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nonanoic acid/erytem

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ArtiklarKliniska testerPatent
5 resultat

Nonanoic acid irritation - a positive control at routine patch testing?

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A false negative patch test can be related to errors in the testing procedure, or to a defect in the eliciting (efferent) phase of the immune response. To define this phase the application of a topical irritant (a "positive control") is suggested. Various concentrations of nonanoic acid in
In this study of 152 women, comparison of patch test responses between 2 irritants over 96 h at 2 symmetrical anatomical sites is studied. 2 irritants, each at 4 different concentrations (nonanoic acid (NAA) 80%, 40%, 20%, 10%; sodium lauryl sulfate (SLS) 3%, 2%, 1% and 0.5%) and using propan-1ol
The rabbit has been used for decades for predictive testing of skin irritancy, but in recent years, the guinea pig has been suggested as an alternative, especially for assessment of one of the components of the irritant reaction: edema (fluid accumulation). A method based on skin-fold measurements

Skin irritation in man: a comparative bioengineering study using improved reflectance spectroscopy.

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Variable types of skin irritation were induced in 8 human female volunteers, ranging from subclinical to visible erythema with slight oedema. Skin reactions were graded clinically and objectively using transepidermal water loss (TEWL), laser Doppler flowmetry (LDF) and improved reflectance

Down-regulation of protein kinase C isoforms in irritant contact dermatitis.

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Protein kinase C (PKC) isoforms are important in cell signal transduction associated with regulation of cell proliferation and differentiation. In this study, alterations of PKC isoform levels in irritant patch test reactions were detected by Western immunoblots. 4 chemically and structurally
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