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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

From: Secondhand smoke exposure toxicity accelerates age-related cardiac disease in old 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**♦♦#

  1. 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.