Table 1.

Morphology of the left ventricle in male young control (MYC), male young SHS exposure (MYS), male old control (MOC) and male old SHS exposure (MOS) hamsters

	Young		Old
	MYC	MYS	MOC	MOS
Animal number (N)	6	6	6	6
BW (g)	132.54 ± 4.61	145.67 ± 3.42*	130.26 ± 6.04	127.59 ± 3.52*♦#
HW (g)	0.46 ± 0.01	0.52 ± 0.01*	0.60 ± 0.03**♦	0.63 ± 0.03**♦♦#
LV (g)	0.31 ± 0.01	0.39 ± 0.01	0.42 ± 0.01**♦	0.53 ± 0.01**♦♦#
HW/BW (mg/g)	3.59 ± 0.10	3.88 ± 0.07	4.45 ± 0.15**♦	5.85 ± 0.38**♦♦#
LV/BW (mg/g)	2.44 ± 0.05	2.67 ± 0.11	3.27 ± 0.05**♦	4.01 ± 0.20**♦♦#
HW/tibia (mg/mm)	16.21 ± 0.23	19.14 ± 0.36	19.84 ± 0.36**♦	24.30 ± 0.70**♦♦#
LV/tibia (mg/mm)	11.12 ± 0.25	13.66 ± 0.47	14.73 ± 0.20**♦	18.48 ± 0.48**♦♦#

Values of represent as mean ± SEM. BW, body weight; HW, whole heart weight; LV, left ventricle; HW/BW, ratio of whole heart weight; LV/BW, ratio of left ventricular weight to body weight; HW/tibia, ratio of whole heart weight to tibia length; LV/tibia, ratio of left ventricular to tibia length. *p < 0.05, **p < 0.01 significant difference vs MYC. ^♦p < 0.05, ^♦♦p < 0.01 siginificant difference vs MYS. ^#p < 0.05, ^##p < 0.01 significant difference from MOC.