Isolation and Hypoglycemic Activity of Trichosans A, B, C, D, and E: Glycans ofTrichosanthes kirilowiiRoots1

Abstract
The non-dialyzable portion of the water extract of the Oriental crude drug “karokon”, the roots of Trichosanthes kirilowii, was found to reduce the plasma glucose level in mice. Activity-guided fractionation of this non-dialyzable portion led to the isolation of five glycans termed as trichosans A, B, C, D and E, showing hypoglycemic actions in normal mice. The main glycan, trichosan A, also exhibited activity in alloxan-induced hyperglycemic mice.

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