IgE and In Vivo Delayed Hypersensitivity to the Recall Antigens in Atopic Dermatitis and Their Relationship

Wang, Han Young; Choi, Young Ja; Sung, Ho Suk

Abstract

We measured serum 1gE by using IgE 'Eiken' radioirnrnunoassay Kit and delayed cutaneous hypersensitivity responsiveness by the Multitest CMI Kit (Institut Merieux) that simultaneously administrates 7 standardized recall antigens(tetanus, diphtheria, streptococcus, tuberculin, candida, trichophyton, proteus) and 70% W/V glycerin diluent control by multiple prick puncture. We studied 40 cases comprising 20 patients with atopic dermatitis (AD) and 20 healthy children as control. The results were obtained as follows; 1) The mean serum level of IgE in AD(63.3+/-395.2 1U/ml) was higher than in control(155.6+/-67.1IU/ml) (p<0.0l), but the intensity of reaction (IR) & rate of reaction (RR) in AD (l.34+/-1.06, 0.38+/-0.23) was not significantly decreased than in control (1.70+/-0.87,0.44+/-0.16). 2) 1n both AD & control group, tuberculin showed highest IR R RR. 3) Anergic state was found in only one patient with disseminated cutaneous lesions Sc 4) serum IgE, but rate of hypoergy was significantly increased in AD(65%) than in control (30%) (p<0.05). 4) Serum IgE was not statistically correlated with IR and RR, but IR was statistically correlated with RR (p<0.001, r=0.9504). 5) IgE level in severe AD (generalized skin lesion) was significantly increased than in both mild AD 8c control group (p<0. 001). but IR & RR were not statistically correlated with disease severity.