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Zingiberis Rhizoma (Shokyo, 生姜) showed significant ameliorative effect on the BaCl2-induced delay of gastric emptying in rat. Bioassay-guided fractionation of the aqueous extract of Shokyo resulted in isolation of 6-gingesulfonic acid (1) and shogasulfonic acid A (3). These compounds significantly improved the delay of gastric emptying on both BaCl2-induced and NG-nitro-L-arginine (L-NNA)-induced model in rat.
Zingiberis Rhizoma (Shokyo, 生姜) showed significant ameliorative effect on the BaCl_2-induced delay of gastric emptying in rat. Bioassay-guided fractionation of the aqueous extract of Shokyo resulted in isolation of 6-gingesulfonic acid (1) and shogasulfonic acid A (3). These compounds significantly improved the delay of gastric emptying on both BaCl_2-induced and N^G-nitro-L-arginine (L-NNA)-induced model in rat. Zingiberis Siccatum Rhizoma (Kankyo,乾姜) had significant efficacy against castor oil-induced diarrhea. In addition, Kankyo showed the activity increasing intestinal blood flow in normal rat.
