Absence of specific IgE antibodies in allergic contact sensitivity to formaldehyde.

Immunologic reactions are customarily divided into two broad categories, cell-mediated and antibody-mediated. An interplay between these two pathogenetic principles is indicated by reactions such as cutaneous basophil hypersensitivity, late-phase reaction, and cutaneous lesions indistinguishable from regular allergic contact dermatitis lesions after sensitization with IgE antibodies against certain haptens. In the present study, 23 patients with a history of a positive epicutaneous test to formaldehyde participated.

One year acyclovir suppression of frequently recurring genital herpes: a study of efficacy, safety, virus sensitivity and antibody response.

The efficacy of oral acyclovir 400 mg twice daily in suppressing frequently relapsing genital herpes simplex was evaluated in an open multicenter study. Seventy-one patients were treated for 12 months. During treatment, 73% of the patients were completely free of symptoms when taking the tablets continuously, and another 14% had mild symptoms such as erythema and/or itching at single occasions.

Comparative multi-center study with TRUE Test and Finn Chamber Patch Test methods in eight Swedish hospitals.

292 individuals were patch tested with twelve allergens, using a new patch test technique, TRUE Test (TT). As controls, the same allergens in standard concentrations in petrolatum were applied using the Finn Chamber technique (FC). The allergen doses used in TT were chosen according to results from a previous serial dilution patch test study.

Treatment of recurrent genital herpes simplex infections with oral acyclovir.

A total of 113 patients with recurrent genital herpes were enrolled in a multicentre cross-over study. Two consecutive recurrences were treated with either oral acyclovir 200 mg or matching placebo five times daily for five days. Acyclovir significantly reduced the time to crusting and healing and the duration of new lesions and symptoms.