Insulin-induced stimulation of glucose disappearance did not differ before and after treatment with either pioglitazone ( 23 + / - 3 vs. 24 + / - 2 micromol x kg ( -1 ) x min ( -1 ) ) or metformin ( 22 + / - 2 vs. 24 + / - 3 micromol x kg ( -1 ) x min ( -1 ) ) .
