Clinical aspects of contact hypersensitivity

Clinical aspects of contact allergy to corticosteroids.

Because of their anti-inflammatory activity, corticosteroids generally mask the clinical signs of a contact dermatitis to a corticosteroid preparation. The lesions usually present as chronic dermatitis, and the patients mostly report not exacerbations but failures to respond to corticosteroid therapy. Moreover, masking also occurs with patch-test reactions obtained with corticosteroid preparati...

Nickel Hypersensitivity: A General Review on Clinical Aspects and Potential

Allergic contact hypersensitivity to metals is a delayed-type allergy. Although various metals are able to induce an allergic reaction, nickel is the most frequent cause of metal allergy worldwide. The high prevalence of skin sensitization to that metal is the result of an ubiquitous exposure, being contained in different everyday things, such as detergents, cheap jewelry, cosmetics, coins, but...

Regulation of contact hypersensitivity by interleukin 10

Contact hypersensitivity (CHS) responses require the participation of T cells, along with a variety of cytokines and adhesion molecules. In the classical CHS, antigen-specific T cells are recruited to a site of antigenic challenge, where they react with antigen, release cytokines, and attract other inflammatory cells. In the mouse model of CHS, this reaction is elicited in sensitized mice by ap...

Involvement of NO in contact hypersensitivity.

The NO synthases (NOS) generate NO from L-arginine. High concentrations of NO have been shown to be responsible for tissue injury and cell death, while low concentrations of NO induce vasodilatation and other signaling effects. We have investigated the involvement of NO in contact hypersensitivity (CHS) reactions. CHS induced by treatment of BALB/c mice with the contact allergen 2,4-dinitrofluo...

New insights in pathophysiology of contact hypersensitivity: From transgenic mice to human pathology

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Contact Hypersensitivity CXCR3 Deficiency Prolongs Th1-Type