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Possible protective and curative effects of selenium nanoparticles on testosterone-induced benign prostatic
W A Elfakharany1, M M Safwat1, A S Essawy2,3
1Human Anatomy and Embryology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Background:
Men over the age of 40 are more likely to develop benign prostatic hyperplasia (BPH). BPH is characterised by proliferation of the prostatic epithelium and stroma. Selenium in the form of nanoparticles is an essential metalloid mineral and antioxidant. In this study, selenium nanoparticles (SeNPs) were tested for their potential protective and curative impacts on BPH in rats.
Materials And Methods:
Fifty male Sprague-Dawley rats were randomly divided into five groups: Group I (Control group); Group II (Orchiectomised group): bilateral orchiectomy was conducted on rats; Group III (BPH group): testosterone (TE) enanthate injection was used to induce BPH; Group IV (Protective group): rats were given SeNPs before subjecting rats to BPH; Group V (Curative group): rats were succumbed to BPH, followed by administration of SeNPs. Measurement of prostate specific antigen (PSA) and TE in serum was performed and prostates were weighed and prepared for histological, immunohistochemical and ultrastructural examination.
Results:
In the BPH group, serum TE and PSA levels, as well as prostate weight, increased significantly and significant decreases were observed in the protective and curative groups. Reduced acinar lumen, expansion of stroma and epithelial hyperplasia were noticed in the BPH group, which were ameliorated significantly in both the protective and curative groups. There was an increase in proliferating cell nuclear antigen immunoreaction in the BPH group and a decrease in both the protective and curative groups. On transmission electron microscopy of BPH group, the nuclei appeared irregular with dilated endoplasmic reticulum, loss of cell boundaries and apical microvilli. The protective group showed more improvement than the curative group.
Conclusions:
The effects of SeNPs on BPH induced by TE in rats, were both protective and curative, although the protective effects were more pronounced.
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