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Immunological-adjuvant saponins from the roots of Panax notoginseng.

The total saponin extract from the dried roots of Panax notoginseng (Burk.) F. H. Chen possesses immunological-adjuvant activities. Guided by in vivo immunological tests, further study on this fraction afforded three active dammarane-type saponins. Their structures were determined on the basis of chemical evidence and extensive spectroscopic methods, including 1D- and 2D-NMR. The novel compound (20S)-protopanaxatriol 20-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (1), and the two known compounds ginsenoside Rh4 (2) and notoginsenoside K (3) exhibited immunological-adjuvant activities on the humoral immune responses of ICR mice against ovalbumin ( OVA).[1]

References

  1. Immunological-adjuvant saponins from the roots of Panax notoginseng. Sun, H., Ye, Y., Pan, Y. Chem. Biodivers. (2005) [Pubmed]
 
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