The Modulatory Role of Vitamin C in Boldenone Undecylenate Induced Testicular Oxidative Damage and Androgen Receptor Dysregulation in Adult Male Rats.

Amany Behairy,Ghada I Abd El-Rahman,Mohamed M.M Metwally,Maha M El Deib,Nabela I El-Sharkawy,Taghred M Saber,Mohamed Mohamed Soliman,Yasmina M Abd-Elhakim

doi:10.3390/antiox9111053

Amany Behairy, Ghada I Abd El-Rahman + Show 6 more

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https://doi.org/10.3390/antiox9111053

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Journal: Antioxidants	Publication Date: Oct 28, 2020
Citations: 25	License type: CC BY 4.0

Affiliation: Zagazig University, Benha University, Taif University

Abstract

Background: This study explored the effect of vitamin C (Vit-C) administration on the reproductive function of adult male Wistar rats injected with boldenone undecylenate (BOL). Methods: Rats were randomly assigned into control, vehicle control, Vit-C (120 mg/kg b.wt./day, orally), BOL (received 5 mg/kg b.wt./week, IM) and BOL+Vit-C-treated groups. After eight weeks, hormonal assay, semen evaluation, testicular enzymes, and antioxidants biomarkers were assessed. Besides, the histopathological and immunohistochemical investigations of the androgen receptor (AR) expression were performed. Results: The results revealed that serum testosterone, acid phosphatase, sorbitol dehydrogenase, sperm abnormalities, and testicular malondialdehyde were significantly incremented in the BOL-treated group. Testicular weight, sperm count, and sperm motility together with serum levels of luteinizing hormone, follicle-stimulating hormone, and estradiol, and testicular testosterone, catalase, superoxide dismutase, and reduced glutathione showed a significant decrease following BOL treatment. Besides, the AR immunoreactivity was significantly decreased in testicular tissues. Vit-C co-administration with BOL significantly relieved the BOL-induced sperm abnormalities, reduced sperm motility, testicular enzyme leakage, and oxidative damage. However, Vit-C could rescue neither BOL-induced hormonal disturbances nor AR down-regulation. Conclusions: The results provide further insight into the mechanisms of BOL-induced reproductive dysfunction and its partial recovery by Vit-C.

Highlights

The most potent androgen in the human body is testosterone (TES)
The gonadosomatic index showed a significant (p < 0.001) reduction in rats injected with boldenone undecylenate (BOL) alone and those co-treated with BOL and vitamin C (Vit-C) compared to other experimental groups
The present study demonstrated that 8 weeks intramuscular injection of male Wistar rats with BOL at the dose 5 mg/kg body weight resulted in an increase in final body weight, body gain, abnormal sperms, serum testosterone, acid phosphatase (ACP), sorbitol dehydrogenase (SDH), testicular MDA

Summary

Introduction

The most potent androgen in the human body is testosterone (TES). To exert an effect, it binds to the androgen receptor (AR) of target tissues. TES may be aromatized to estradiol (E2) to exert estrogenic effects, typically water retention, breast tissue growth, and an increase in body fat deposition [3]. Results: The results revealed that serum testosterone, acid phosphatase, sorbitol dehydrogenase, sperm abnormalities, and testicular malondialdehyde were significantly incremented in the BOL-treated group. Testicular weight, sperm count, and sperm motility together with serum levels of luteinizing hormone, follicle-stimulating hormone, and estradiol, and testicular testosterone, catalase, superoxide dismutase, and reduced glutathione showed a significant decrease following BOL treatment. Vit-C co-administration with BOL significantly relieved the BOL-induced sperm abnormalities, reduced sperm motility, testicular enzyme leakage, and oxidative damage. Conclusions: The results provide further insight into the mechanisms of BOL-induced reproductive dysfunction and its partial recovery by Vit-C

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