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Table 3 Comparison of LV remodeling and function between EPO-transduced, non-transduced cell or saline injections by two-dimensional echocardiography, before (baseline), or 5 or 9 weeks after MI

From: Transplantation of genetically engineered cardiac fibroblasts producing recombinant human erythropoietin to repair the infarcted myocardium

 

EPO-transduced cells (n = 10)

Non-transduced cells (n = 9)

Saline (n = 9)

p †

5-week follow-up

    

   Heart rate

   

0.17

Baseline

308.8 ± 12.6

273.8 ± 11.7

273.0 ± 11.6

 

5 weeks

252.7 ± 9.5

252.5 ± 14.0

262.8 ± 13.5

 

p*

0.0068

0.32

0.55

 

   AW d (cm)

   

0.07

Baseline

0.13 ± 0.01

0.17 ± 0.007

0.13 ± 0.01

 

5 weeks

0.09 ± 0.006

0.10 ± 0.01

0.10 ± 0.01

 

p*

0.006

0.0002

0.04

 

   LVEDD

   

0.08

Baseline

0.76 ± 0.02

0.72 ± 0.02

0.82 ± 0.02

 

5 weeks

1.06 ± 0.02

0.98 ± 0.03

1.00 ± 0.03

 

p*

<0.0001

<0.0001

0.0009

 

   LVESD

   

0.22

Baseline

0.60 ± 0.03

0.56 ± 0.02

0.64 ± 0.03

 

5 weeks

0.88 ± 0.03

0.81 ± 0.04

0.80 ± 0.04

 

p*

<0.0001

<0.0001

<0.0001

 

   LVEDA

   

0.34

Baseline

0.39 ± 0.03

0.35 ± 0.01

0.43 ± 0.02

 

5 weeks

0.73 ± 0.04

0.65 ± 0.04

0.67 ± 0.05

 

p*

<0.0001

<0.0001

0.0011

 

   LVESA

   

0.36

Baseline

0.24 ± 0.02

0.21 ± 0.01

0.26 ± 0.02

 

5 weeks

0.52 ± 0.04

0.42 ± 0.04

0.44 ± 0.05

 

p*

<0.0001

<0.0001

0.0004

 

   FS (%)

   

0.99

Baseline

20.6 ± 2.9

22.3 ± 1.7

25.07 ± 2.2

 

5 weeks

16.2 ± 1.4

17.8 ± 1.6

20.96 ± 2.0

 

p*

0.14

0.008

0.002

 

9-week follow-up

    

   Heart rate

   

0.28

Baseline

303.2 ± 12.7

274.4 ± 13.3

273.0 ± 11.6

 

9 weeks

242.0 ± 6.3

235.5 ± 12.2

246.2 ± 7.7

 

p*

0.04

0.12

0.0014

 

   AW d (cm)

   

0.19

Baseline

0.13 ± 0.01

0.17 ± 0.007

0.13 ± 0.01

 

9 weeks

0.09 ± 0.01

0.12 ± 0.01

0.11 ± 0.01

 

p*

0.03

0.0002

0.3

 

   LVEDD

   

0.22

Baseline

0.76 ± 0.02

0.72 ± 0.02

0.82 ± 0.02

 

9 weeks

1.11 ± 0.04

1.03 ± 0.03

1.05 ± 0.03

 

p*

<0.0001

<0.0001

0.0003

 

   LVESD

   

0.3

Baseline

0.60 ± 0.03

0.56 ± 0.02

0.64 ± 0.03

 

9 weeks

0.95 ± 0.05

0.84 ± 0.04

0.86 ± 0.05

 

p*

<0.0001

<0.0001

<0.0001

 

   LVEDA

   

0.42

Baseline

0.39 ± 0.03

0.35 ± 0.01

0.43 ± 0.02

 

9 weeks

0.83 ± 0.06

0.71 ± 0.05

0.74 ± 0.06

 

p*

<0.0001

<0.0001

0.0006

 

   LVESA

   

0.37

Baseline

0.24 ± 0.02

0.21 ± 0.01

0.26 ± 0.02

 

9 weeks

0.61 ± 0.06

0.48 ± 0.05

0.51 ± 0.06

 

p*

0.0001

0.0001

0.0003

 

   FS (%)

   

0.09

Baseline

20.6 ± 2.9

22.3 ± 1.72

25.1 ± 2.2

 

9 weeks

14.3 ± 1.8

18.7 ± 1.73

19.8 ± 2.4

 

p*

0.05

0.02

0.0008

 
  1. AW d, anterior wall diastolic thickness; LVEDD, LV end diastolic dimension; LVESD, LV end systolic dimension; LVEDA, LV end diastolic area; LVESA, LV end systolic area; FS, LV fractional shortening [(LVIDd – LVIDs)/LVIDd] × 100. Values are mean ± SEM; p*, p-values derived from paired comparisons between baseline and 5/9 week measurements; p†, p-values for the differences between groups over time (two-way repeated-measures ANOVA, p-value for interaction).