Table 1.

Age and body/heart weights of male and female NHR and HHR

Parameter	NHR		HHR
	Male	Female	Male	Female
Age (weeks)	14.6 ± 0.7 (15)	13.3 ± 0.3 (13)	14.8 ± 1.0 (14)	13.7 ± 0.6 (13)
Body weight (g)	352 ± 7.9 (15)	180 ± 5.5# (13)	299 ± 10.2## (14)	171 ± 4.7## (13)
Heart weight (mg)	1410 ± 28.5 (15)	882 ± 27.7# (13)	1514 ± 85.8 (14)	1202 ± 69.2#,## (13)
CWI (mg/g)	4.02 ± 0.1 (15)	4.91 ± 0.1# (13)	5.12 ± 0.3## (14)	7.04 ± 0.4#, ## (13)

#sex p < 0.05; ##strain p < 0.05, mean ± SEM, n = hearts or animals in brackets for each group