Effect of RTLW, RTLE and pioglitazone on glycemic index in HFD/STZ-induced diabetic rats for 4 weeksa.
N | DM | DM + Pio | DM + W100 | DM + W400 | DM + E100 | DM + E400 | |
---|---|---|---|---|---|---|---|
Fasting serum glucose (mg dL−1) | 72.67 ± 9.63b | 152.25 ± 52.27a | 99.67 ± 10.01b | 98.80 ± 26.31b | 90.83 ± 34.66b | 96.83 ± 28.51b | 107.00 ± 27.08b |
HbA1C (%) | 4.55 ± 0.26c | 7.37 ± 0.70a | 5.20 ± 0.29bc | 6.10 ± 0.69b | 5.78 ± 0.19b | 5.72 ± 0.15b | 5.95 ± 1.48b |
Serum fructosamine (μmol L−1) | 178 ± 13b | 257 ± 22a | 193 ± 19b | 204 ± 8b | 193 ± 23b | 201 ± 85b | 204 ± 18b |
RTL = Ruellia tuberosa L.; RTLW = Ruellia tuberosa L. water extract; RTLE = Ruellia tuberosa L. ethanol extract; HFD = high fat diet; STZ = streptozotocin; HbA1C = hemoglobin A1C. N = normal diet; DM = HFD (60% fat) + STZ intraperitoneal injection; DM + Pio = HFD (60% fat) + STZ intraperitoneal injection + pioglitazone (30 mg kg−1 B.W.); DM + W100 = HFD (60% fat) + STZ intraperitoneal injection + RTLW (100 mg kg−1 B.W.); DM + W400 = HFD (60% fat) + STZ intraperitoneal injection + RTLW (400 mg kg−1 B.W.); DM + E100 = HFD (60% fat) + STZ intraperitoneal injection + RTLE (100 mg kg−1 B.W.); DM + E400 = HFD (60% fat) + STZ intraperitoneal injection + RTLE (400 mg kg−1 B.W.). a–c letters in the same row are significantly different from all samples tested (p < 0.05). Each value is means ± SD, n = 6.