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. 2005 Mar;19(3):203-6.
doi: 10.1002/ptr.1643.

Antidiabetic Effect of Cinnamomum Cassia and Cinnamomum Zeylanicum in Vivo and in Vitro

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Antidiabetic Effect of Cinnamomum Cassia and Cinnamomum Zeylanicum in Vivo and in Vitro

Eugen J Verspohl et al. Phytother Res. .

Abstract

Rats were given Cinnamomum cassia bark or extracts from Cinnamomum cassia and zeylanicum to evaluate blood glucose and plasma insulin levels in rats under various conditions. The cassia extract was superior to the zeylanicum extract. The cassia extract was slightly more efficacious than the equivalent amount of Cassia bark. A decrease in blood glucose levels was observed in a glucose tolerance test (GTT), whereas it was not obvious in rats that were not challenged by a glucose load. The elevation in plasma insulin was direct since a stimulatory in vitro effect of insulin release from INS-1 cells (an insulin secreting cell line) was observed. Thus the cassia extract has a direct antidiabetic potency.

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