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Ma, Q.J. et al.

Effect of beta radiation on TGF-beta1 and bFGF expression in hyperplastic prostatic tissues.

AIM: To investigate the transforming growth factor beta1 (TGF-beta1) and basic fibroblast growth factor ( bFGF) expressions in benign prostatic hyperplasia (BPH) and the effect of beta-radiation. METHODS: TGF-beta1 and bFGF expression was studied by means of an immunohistochemical method in nine normal prostatic (NP) tissues, 15 hyperplastic prostatic tissues and 35 hyperplastic prostatic tissues treated with 90Sr/90Y. RESULTS: The TGF-beta1 expression in the epithelium and stroma of normal prostatic tissues was 68.2 % +/- 10.5 % and 29.7 % +/- 4.6 %, respectively, while it was 64.8 % +/- 9.3 % and 28.6 % +/- 4.1 %, respectively, in hyperplastic prostatic tissues. Compared with the controls, TGF-beta1 expression in the epithelia and stroma of BPH treated with 90Sr/90Y increased significantly (P <0.01). The bFGF expression in epithelia and stroma of normal prostatic tissues was 17.4 % +/- 3.7 % and 42.5 % +/- 6.8 %, respectively, and was 46.3 % +/- 8.2 % and 73.2 % +/- 12.1 %, respectively, in hyperplastic prostatic tissues. Compared with the controls, expressions of bFGF in the epithelia and stroma of BPH treated with a 90Sr/90Y prostatic hyperplasia applicator decreased significantly (P <0.01). CONCLUSION: Exposure of beta-rays had noticeable effects on BPH tissues, enhancing TGF-beta1 expression and inhibiting bFGF expression.[1]

References

Effect of beta radiation on TGF-beta1 and bFGF expression in hyperplastic prostatic tissues. Ma, Q.J., Gu, X.Q., Cao, X., Zhao, J., Kong, X.B., Li, Y.X., Cai, S.Y. Asian J. Androl. (2005) [Pubmed]

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