Effect of Vitis vinifera seed extract on the 24 h urinary levels of ascorbic acid in normal and stress induced rats. Each bar indicates the mean excretion of six animals. Significant difference from normal condition of the corresponding groups: *p < 0.05 Significant difference from stress condition of the corresponding groups: #p < 0.05 NS- No significant difference from normal condition of the corresponding groups. §No significant difference from stress condition.
Sreemantula et al. BMC Complementary and Alternative Medicine 2005 5:1 doi:10.1186/1472-6882-5-1