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Miyazaki, H. et al.

Miyazaki, Matsuura, Yanagiya, Mizutani, Tsuji, Ishihara,

Inhibitory effects of hyssop (Hyssopus officinalis) extracts on intestinal alpha-glucosidase activity and postprandial hyperglycemia.

It has been known that Hyssopus officinalis (hyssop) is a herb that grows in the wild and is a source of natural antioxidants. We previously reported that a-glucosidase inhibitors, (2S, 3S)1-O-beta-D-6'-O-cinnamoylglucopyranosyl-3-(3", 5"-dimethoxy-4"-hydroxyphenyl)-1,2,3-propanetriol and (2S, 3S)1-O-beta-D-glucopranosyl-3-(3", 5"-dimethoxy-4"-hydroxyphenyl)-1,2,3-propanetriol, from the dry leaves of hyssop, were isolated. This study examined the alpha-glucosidase inhibitory effects of hyssop extracts on intestinal carbohydrate absorption in rat everted gut sac and carbohydrate-loaded hyperglycemia in mice. In the everted gut sac experiment, 10 mM sucrose- and 5 mM maltose-treated increases in glucose concentration in the serosal compartment were inhibited in the presence of 0.5 and 1.0 mg/ mL hyssop extracts, although a 10 mM glucose-induced increase in serosal glucose was not inhibited by the extracts. Additionally, hyperglycemia in sucrose- and maltose-loaded mice was significantly suppressed at an early stage, within 30 to 60 min by oral pre-administration of 300 and 100 mg/kg hyssop extracts, respectively. These findings suggest that hyssop extracts inhibited the digestion of complex carbohydrates, but not that of absorbable monosaccharide, and might be a useful supplemental food for hyperglycemia.[1]

References

Inhibitory effects of hyssop (Hyssopus officinalis) extracts on intestinal alpha-glucosidase activity and postprandial hyperglycemia. Miyazaki, H., Matsuura, H., Yanagiya, C., Mizutani, J., Tsuji, M., Ishihara, C. J. Nutr. Sci. Vitaminol. (2003) [Pubmed]

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