Effect of the flavonoid components obtained from Scutellaria radix on the histamine, immunoglobulin E and lipid peroxidation of spleen lymphocytes of sprague-dawley rats
2003
Lim, B.O. (Kyung Hee Univ., Seoul (Korea R.)) | Choue, R.W. | Lee, H.Y. | Seong, N.S. | Kim, J.D.
The effect on the IgE content induced by concanavalin A in spleen lymphocytes of the presence wogonin, ganhuangenin, wogonoside and 3,5,7,2',6'-pentahydroxyl flavanone was investigated. These falconoid components markedly inhibited the histamine released from cells stimulated with the calcium ionosphere, A23187. However, the magnitude of the inhibitory effect on the degree of lipid peroxidation by ConA of these components was in order of PHF>GHG>WG>WGS. Interestingly, WG, GHG and WCS, with a methoxyl group in the A and B rings, strongly inhibited histamine and IgE production, whereas PHF without a methoxyl group was much stronger than that for lipid peroxidation. We suggest that WG, GHG and WGS might block the pathway for the release of histamine, and that the IgE level in spleen lymphocytes are responsible for the lipid per oxidation.
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