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Table 2 Correlations between TGF-β1, PDGF and proBNP

From: Transforming growth factor beta 1 levels predict echocardiographic changes at three years after adjuvant radiotherapy for breast cancer

  TGF-β1 before RT TGF-β1 after RT TGF-β1
3 years
Change in TGF-β1 before RT–after RT Change in TGF-β1 before RT–3 years Change in TGF-β1 after RT–3 years
PDGF before RT 0.667 0.222 0.132 ─0.405 ─0.480 ─0.088
PDGF after RT 0.453 0.713 0.316 0.249 ─0.141 ─0.361
PDGF 3 years 0.299 0.338 0.749 0.022 0.336 0.414
Change in PDGF before RT–after RT ─0.221 0.481 0.246 0.646 0.363 ─0.204
Change in PDGF before RT–3 years 0.254 ─0.128 0.625 0.308 0.739 0.513
Change in PDGF after RT–3 years ─0.132 ─0.267 0.544 ─0.152 0.600 0.826
proBNP before RT 0.298 ─0.037 ─0.040 0.325 0.280 ─0.050
proBNP after RT 0.265 ─0.041 ─0.006 0.252 ─0.183 ─0.005
proBNP 3 years 0.293 ─0.060 ─0.061 0.321 0.297 ─0.070
Change in proBNP before RT–after RT ─0.040 ─0.016 0.054 0.101 0.150 0.075
Change in proBNP before RT–3 years 0.114 0.087 0.004 ─0.023 ─0.111 ─0.129
Change in proBNP after RT–3 years 0.212 0.018 0.004 0.259 ─0.232 ─0.060
  1. TGF-β1 transforming growth factor beta 1, PDGF Platelet-derived growth factor, proBNP N-terminal pro-brain natriuretic peptide, RT Radiotherapy, Correlation coefficients (Spearman’s rho) in bold are statistically significant (p < 0.05)