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The effects of diethylstilbestrol administration on rat kidney. Ultrastructural study
Adel M Hussein1, Mohamed H Badawoud, Mustafa H Noaman
1Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
Objective:
To assess the histological and ultrastructural changes that can be induced by diethylstilbestrol (DES) on renal tissues using histological, immunohistochemical, and ultrastructural methods.
Methods:
Thirty adult male Wistar rats were divided into 3 groups (10 rats each): Group 1 - control; Group 2 - received DES at a dose of 60 ug/kg/day, dissolved in 0.1 ml corn oil for 20 days; and Group 3 - received the same dose of DES for 50 days by oral gavage. The renal tissues were studied histologically, immunohistochemically (using an anti-BCL2-associated X protein [BAX protein] antibody), and ultrastructurally. This study was carried out at the Anatomy Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia between December 2011 and December 2012.
Results:
The DES administration for 50 days caused noticeable degeneration, and alteration of the morphology of the renal tissues in the form of damaged renal tubules with loss of the brush border of the proximal convoluted tubules and increased cellularity of the glomeruli. In addition, there was a significant increase in BAX protein expression based on immunoreactivity, and in renal tubules, as well as glomerular cells. These changes were less obvious after 20 days of treatment.
Conclusion:
Non-steroidal, synthetic estrogens showed harmful effects on the renal tissues and altered their morphology with an increased number of apoptotic cells, and these changes were duration dependent.
