Allergy-Preventive Effects of the Flowers of Impatiens textori

Emiko Iwaoka; Hisae Oku; Munekazu Iinuma; Kyoko Ishiguro

doi:10.1248/bpb.33.714

Notes

Allergy-Preventive Effects of the Flowers of Impatiens textori

Emiko Iwaoka, Hisae Oku, Munekazu Iinuma, Kyoko Ishiguro

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Keywords: Impatiens textori, allergy-preventive effect, blood flow, luteolin, apigenin, hen-egg white lysozyme

JOURNAL FREE ACCESS

2010 Volume 33 Issue 4 Pages 714-716

DOI https://doi.org/10.1248/bpb.33.714

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Abstract

The allergy-preventive activity of a 35% EtOH extract (IT) of flowers of Impatiens textori MIQ. was demonstrated in a continuing search for allergy-preventive substances from natural sources. The evaluation of its activity used an in vivo assay method for monitoring the blood flow decrease in the tail vein microcirculation of mice subjected to sensitization with hen-egg white lysozyme. Among the principal compounds in IT, apigenin (1), luteolin (3), and luteolin 7-glucoside (4) showed significant allergy-preventive effects.

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