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506735 
Journal Article 
Suppressive effect of verproside isolated from Pseudolysimachion longifolium on airway inflammation in a mouse model of allergic asthma 
Oh, SR; Lee, MY; Ahn, K; Park, BY; Kwon, OK; Joung, H; Lee, J; Kim, DY; Lee, S; Kim, JH; Lee, HK 
2006 
Yes 
International Immunopharmacology
ISSN: 1567-5769 
6 
6 
978-986 
English 
Allergic inflammation of the airways has a critical role in asthma development. We investigated a suppressive effect of verproside (3,4-dihydroxy catalpol) isolated from the extract of Pseudolysimachion longifolium on asthmatic parameters-such as immunoglobulin E (IgE) level, cytokine release, eosinophilia, airway hyperresponsiveness and mucus hypersecretion-in an OVA-sensitized/challenged mouse model. Verproside significantly inhibited the increase of total IgE and the cytokines IL-4 and IL-13 in plasma and bronchoalveolar lavage fluid, and also effectively suppressed airway hyperresponsiveness, eosinophilia and mucus hypersecretion in OVA-induced asthmatic mice. The efficacy of verproside was comparable to montelukast, an anti-asthmatic drug that is currently available. These results suggest that verproside could be a major marker in herbal medicines that are used for asthma treatment, and could also act as a lead for anti-asthmatic drugs. (c) 2006 Elsevier B.V. All rights reserved. 
verproside; Pseudolysimachion longifolium; allergic asthma; mouse model; kappa-b activation; tnf-alpha; inhibition; hyperresponsiveness; blockade; iridoids; insights; aucubin; cells; il-13