The Lagerstroemin study also showed that its glucose transport inducing activity is about 54% of that of insulin (22) . In comparison, aand b-PGG showed 60-70% of insulin's glucose transport inducing activity (39) . . Glucose transport stimulatory activity of glucosol as compared with banana extract. Banaba extract (BE) was prepared in house (28) . Glucosol (30) was purchased. Glucosol was compared with BE in a regular glucose uptake assay (28, 29) . Samples were assayed in triplicates, and the assay was repeated three times. The result of the assays was analyzed with a one-way ANOVA. *P50.05, **P50.01, ***P50.001. All samples were compared with the negative (vehicle) control. Thus, aand b-PGG are at least 30% more effective than Lagerstroemin (Table 1 ). It is interesting that PGG possesses many other health-beneficial bioactivities, such as anticancer (41, 42) , anti-inflammation (43, 44) , antivirus (anti-HIV, 45; anti-SARS, 46) and antioxidant activity (47, 48) .