Table 1. Left ventricular mRNA levels of TM, Nrg-1, and PKCα at 6.

months.

Experimental group	TM	Nrg-1	PKCα
Sham	1.04 ± 0.14	1.58 ± 0.69	1.01 ± 0.08
21 Gy	1.38 ± 0.11	3.79 ± 0.50*	2.13 ± 0.13*
21 Gy + PTX	1.84 ± 0.20†	3.50 ± 0.40	1.70 ± 0.20*
21 Gy + PTX/TSB	1.76 ± 0.23†	5.61 ± 0.48*†	1.78 ± 0.09*

Relative mRNA levels were measured with real-time PCR at 6 months after local heart irradiation (average ± SEM, n 5).

* Significant difference with sham-irradiation (p<0.05), † Significant difference with 21 Gy (p<0.05).