Table 1.

The physical characteristics of male and female mice

Attributes	Wild-type Mice		β2AR-knockout Mice
	Male	Female	Male	Female
Body weight, (g)	25.2 ± 0.66	25 ± 1.04	26.8 ± 1.11	29.2 ± 1.31
Heart wet weight, (g)	0.1499 ± 0.01	0.1303 ± 0.01	0.1453 ± 0.00	0.1495 ± 0.01
Cell capacitance	Male	Female	OVX
	163.4 ± 6.70	147.2 ± 13.10	180.0 ± 12.80

Body weight and heart weight of male and female wild-type and β₂AR-knockout mice. There were no significant differences in body weight and heart wet weights between male and female mice. The data are presented as means ± SEM