Table 1. Effects of GPE supplementation on water and food intakes as well as body weights of C57BL/KsJ-db/db mice.

db/db (diabetes mellitus control): C57BL/KsJ-db/db mice fed AIN-93G diet; db/db-RG: C57BL/KsJ-db/db mice fed AIN-93G diet supplemented with rosiglitazone (0.005 g/100 g diet); db/db-GPE: C57BL/KsJ-db/db mice fed AIN-93G diet supplemented with Gynura procumbens extract (GPE; 0.5 g/100 g diet). Values are presented as means ± SD, n = 7 per group. ^a-c Mean values designated by different letters are significantly different among groups (P < 0.05). HbA1c: blood glycosylated hemoglobin, HOMA-IR: homeostatic index of insulin resistance, QUICKI: quantitative insulin sensitivity check index.