Molecules 2012, 17(1), 716-727; doi:10.3390/molecules17010716

Evaluation of the Immunity Activity of Glycyrrhizin in AR Mice

1,* email and 2email
Received: 12 December 2011; in revised form: 29 December 2011 / Accepted: 29 December 2011 / Published: 12 January 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this study, we evaluated effect of glycyrrhizin on immunity function in allergic rhinitis (AR) mice. The AR mice model were induced by dripping ovalbumin in physiological saline (2 mg mL−1, 10 μL) into the bilateral nasal cavities using a micropipette. After the AR model was induced, mice were randomly divided into six groups: the normal control, model, lycopene 20 mg kg−1 (as positive control drug) group, and glycyrrhizin 10, 20, 30 mg kg−1 groups. After the sensitization day 14, lycopene (20 mg/kg BW) and glycyrrhizin (10, 20 and 30 mg/kg BW) were given orally for 20 days once a day. Mice in the normal control and model groups were given saline orally once a day for 20 days. Results showed that glycyrrhizin treatment could dose-dependently significantly reduce blood immunoglobulin E (IgE), interleukin-4 (IL-4), interleukin-5 (IL-5), interleukin-6 (IL-6), nitrous oxide (NO), tumor necrosis factor-alpha (TNF-α) levels and nitrous oxide synthase (NOS) activity and enhance blood immunoglobulin A (IgA), immunoglobulin G (IgG), immunoglobulin M (IgM), interleukin-2 (IL-2) and interleukin-12 (IL-12) levels in AR mice. Furthermore, glycyrrhizin treatment could dose-dependently significantly enhance acetylcholinesterase (AchE) activity and reduce substance P (SP) level in peripheral blood and nasal mucosa of AR mice. We conclude that glycyrrhizin can improve immunity function in AR mice, suggesting a potential drug for the prevention and therapy of AR.
Keywords: glycyrrhizin; immunity function; allergic rhinitis; TNF-α
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MDPI and ACS Style

Li, X.-L.; Zhou, A.-G. Evaluation of the Immunity Activity of Glycyrrhizin in AR Mice. Molecules 2012, 17, 716-727.

AMA Style

Li X-L, Zhou A-G. Evaluation of the Immunity Activity of Glycyrrhizin in AR Mice. Molecules. 2012; 17(1):716-727.

Chicago/Turabian Style

Li, Xiao-Lan; Zhou, Ai-Guo. 2012. "Evaluation of the Immunity Activity of Glycyrrhizin in AR Mice." Molecules 17, no. 1: 716-727.

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