Effects of Scutellariae radix and Aloe vera gel extracts on immunoglobulin E and cytokine levels in atopic dermatitis NC/Nga mice

Aim of the study: The present study aimed to investigate the effects of Scutellariae radix (SR) and Aloe vera gel (AV), alone or in combination, on levels of immunoglobulin E (IgE) and inflammatory cytokines in spontaneous atopic dermatitis(AD)-like skin lesions. Materials and methods: After spontaneous AD-like skin lesion was developed by adaptation to conventional conditions, mice were randomly assigned to control, SR (50 mg/kg, p.o.), AV (0.8 mg/kg, p.o.) and SRAV (50 mg of SR and 0.8 mg of AV/kg, p.o.) groups, and were treated for 6 weeks. Results: SR and SRAV suppressed IL-5 levels compared with control, but had no effects on IgE levels (P<0.05). AV increased IgE levels, but decreased both IL-5 and IL-10 compared with control (P<0.05). Conclusion: These results suggest that SR and AV modulate immunological responses in AD, mainly through influencing IL-5 or IL-10 levels. (C) 2010 Elsevier Ireland Ltd. All rights reserved.