[Result of "as is patch test" using mite elements in atopic dermatitis (AD) patient. 2nd report, "Mite lipid"].

The antigenicity of mite lipid was studied, taking atopic dermatitis as an allergic disease. Lipid was extracted from Dermatophagoides pteronyssinus (Dp) and D. farinae (Df).

[Results of patch test using mite components in atopic dermatitis (AD) patients. 1st report. "As is patch test" using crushed mites].

Unlabelled: As is patch test using crushed live mites and crushed dried dead mites of Dermatophagoides pteronyssinus (D.p.), Dermatophagoides farinae (D.

Basophil histamine release and airway response to mite allergen in atopic dermatitis.

Twelve patients with atopic dermatitis (AD) were subjected to in vitro histamine release from peripheral blood leukocytes (basophils) and in vivo bronchial inhalation challenge using house dust mite (Dermatophagoides farinae) allergen. Not only seven patients with asthmatic history but also five patients without asthma responded to both the in vitro and the in vivo challenges. A significant correlation was observed between HR30 (a mite concentration producing a 30% release of total cellular histamine) and PC20 allergen (a mite concentration producing a 20% fall in FEV1).

Bronchial responsiveness to mite allergen in atopic dermatitis without asthma.

Eight patients with atopic dermatitis (AD) without a history of asthmatic episodes and 8 patients with mite-allergic bronchial asthma (BA) were subjected to bronchial inhalation challenge with a nonspecific stimulus (acetylcholine) and an immunologically specific stimulus (house dust mite allergen). AD patients had a significantly greater concentration of IgE (p less than 0.01) and antimite IgE antibody (p less than 0.

Comparison of total IgE and anti-mite IgE antibody levels in the sera of patients with atopic dermatitis and/or atopic bronchial asthma.

In the present study characterization of serological features of AD and/or BA patients were attempted. Nearly all of the patients (23 out of 24) with AD with or without episodes of BA had total IgE levels higher than 1,000 IU/ml. Conversely, 14 out of the 15 BA patients showed total IgE levels less than 1,000IU/ml.