Table 1.

Diabetic conditions of 12-week old GK rats before metformin treatment

	Con	GK
Weight (g)	249.50 ± 4.48	249.83 ± 4.68
FBG (mM)	4.38 ± 0.24	12.37 ± 0.23**
FINS (mIU/l)	20.46 ± 1.11	27.62 ± 2.53*

FBG fasting blood glucose, FIN fasting insulin, n = 12 per group

*P < 0.05 vs Con, **P < 0.01 vs Con