Table 2. Anatomic and hemodynamic characteristics of the Control and IR rats at the end of the 12th week.

	Control	IR
BW (g)	515±26	532±29
HW (mg)	1201±43	1679±71*
HW/BW (mg/g)	2.33±0.09	3.15±0.20*
Heart rate (beats/min)	345±21	364±25
SBP (mmHg)	109±5	142±8*
MAP (mmHg)	97±6	123±9*

IR: insulin resistance; HW: heart weight; BW: body weight; SBP: systolic blood pressure; MAP: mean arterial pressure. n = 6 for each group. The values are presented as the means±SE.

*P<0.05 compared with the Control group.

SBP was measured in the conscious state, and MAP and HR were determined under anesthesia.