Skip to main content

Table 2 Tranilast administration causes a shift in fibre type proportions in the TA muscles of mdx mice

From: Tranilast administration reduces fibrosis and improves fatigue resistance in muscles of mdx dystrophic mice

 

CON + VEH

CON + TRA

mdx + VEH

mdx + TRA

Tibialis anterior

Fibre CSA (μm2)

1,811.4 ± 54.9

1,859.7 ± 74.3

1,890.2 ± 54.0

1,932.2 ± 113.6

SDH intensity (o.d.)

1,645.4 ± 57.4

1,622.3 ± 36.6

1,497.2 ± 74.1

1,464.7 ± 48.9

% Type IIa fibres

11.0 ± 3.1

9.1 ± 1.6

4.9 ± 0.6

10.8 ± 0.5*

Diaphragm

Fibre CSA (μm2)

1,010.6 ± 69.3

949.8 ± 69.8

764.9 ± 39.9

874.6 ± 65.3

SDH intensity (o.d.)

2,004.0 ± 63.9

1,725.6 ± 212.3

1,897.3 ± 46.2

1,793.1 ± 124.1

% Type IIa fibres

63.8 ± 1.6

67.8 ± 3.9

71.5 ± 2.6

78.6 ± 3.3

  1. At the conclusion of the treatment period the fibre cross-sectional area (CSA), fibre type and oxidative enzyme activity were determined by histological evaluations of cross-sections stained with H&E and reacted for succinate dehydrogenase (SDH) activity. P < 0.05, group main effect; *P < 0.05, tranilast-treated vs. vehicle-treated mdx mice.