Skip to main content

Table 2 Effect of intramyocardial TSC-22 gene delivery on cardiac function in the normal adult rat heart

From: TSC-22 up-regulates collagen 3a1 gene expression in the rat heart

Variable

Group

TSC-22

TSC-22

  

3 days

2 weeks

Interventricular septum diastole (mm)

LacZ

1.9 ± 0.1

2.0 ± 0.1

TSC-22

2.1 ± 0.1

2.0 ± 0.1

Interventricular septum systole (mm)

LacZ

2.6 ± 0.1

2.5 ± 0.2

TSC-22

2.7 ± 0.2

2.8 ± 0.2

Left ventricle diastole (mm)

LacZ

7.6 ± 0.3

8.6 ± 0.1

TSC-22

7.2 ± 0.3

8.7 ± 0.2

Left ventricle systole (mm)

LacZ

5.1 ± 0.3

6.1 ± 0.3

TSC-22

4.7 ± 0.3

6.1 ± 0.3

Posterior wall distole (mm)

LacZ

2.3 ± 0.2

1.6 ± 0.1

TSC-22

2.0 ± 0.3

1.5 ± 0.1

Posterior wall systole (mm)

LacZ

2.1 ± 0.2

2.3 ± 0.2

TSC-22

2.1 ± 0.1

2.3 ± 0.1

Ejection fraction (%)

LacZ

66.7 ± 2.3

58.2 ± 4.5

TSC-22

69.1 ± 3.0

62.8 ± 3.0

Fractional shortening (%)

LacZ

32.8 ± 1.7

27.4 ± 2.7

TSC-22

34.7 ± 2.5

30.3 ± 2.0

IVRT

LacZ

no data

24.8 ± 2.2

TSC-22

no data

25.0 ± 1.6

E/A-ratio

LacZ

no data

5.1 ± 0.8

TSC-22

no data

2.7 ± 0.6*

  

n = 7–8

n = 5

  1. Adenoviral gene construct expressing TSC-22 or LacZ were injected into LV free wall and echocardiographic measurements were performed at 3 days and 2 weeks after gene transfer. The results are expressed as mean ± SEM. *P < 0.05 versus LacZ (Student’s t-test). IVRT, isovolumic relaxation time