Fig. 4From: α-glucosidase and glycation inhibitory effects of costus speciosus leavesGlycation induced protein cross-linking inhibitory effect of COS. SDS PAGE was conducted. a: with aliquots collected on day 14 with 2 mg/ml extract. b: with aliquots collected on day 6 with 250 μg/ml extract. -P: in the absence of COS, COS: in the presence of COS, −F: in the absence of fructose, +F: in the presence of fructose. Experiment was repeated three timesBack to article page