Protective effect of grape seed extract against cadmium-induced testicular dysfunction

Alkhedaide,Adel; Alshehri,Zafer  Saad; Sabry,Ayman; Abdel‑Ghaffar,Tulip; Soliman,Mohamed  Mohamed; Attia,Hossam

doi:10.3892/mmr.2016.4928

Protective effect of grape seed extract against cadmium-induced testicular dysfunction

Authors:
- Adel Alkhedaide
- Zafer Saad Alshehri
- Ayman Sabry
- Tulip Abdel‑Ghaffar
- Mohamed Mohamed Soliman
- Hossam Attia
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Affiliations: Medical Laboratories Department, College of Applied Medical Sciences, Taif University, Turabah, Taif 11942, Saudi Arabia, Medical Laboratories Department, College of Applied Medical Sciences, Shaqraa University, Ad‑Dawadmi 31982, Saudi Arabia, Biotechnology and Genetic Engineering Unit, Taif University, Turabah, Taif 51431, Saudi Arabia, Department of Zoology, Faculty of Veterinary Medicine, Benha University, Toukh, Qalubiya 13736, Egypt
Published online on: February 23, 2016 https://doi.org/10.3892/mmr.2016.4928
Pages: 3101-3109
Copyright: © Alkhedaide et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Cadmium (Cd) is the most prevalent toxic metal present in livestock feed; therefore, the present study aimed to examine the ameliorative effects of grape seed extract (GSE) on cadmium chloride (CdCl2)‑induced testicular dysfunction of Wistar rats. Male adult Wistar rats (40 rats; n=10/group) were divided into four equal groups. Group one was used as a control, and was given ad libitum access to food and water. Groups 2‑4 were treated with CdCl2 [5 mg/kg body weight (BW)], GSE (400 mg/kg BW, orally), and GSE plus CdCl2, respectively. Blood and testicular tissues were collected and assayed for biochemical and histopathological changes, respectively. Testicular genes were expressed using semi‑quantitative RT‑PCR analysis. The results of the present study demonstrated that there was a decrease in serum testosterone levels following CdCl2 toxicity, which were normalized after GSE co-administration. Furthermore, CdCl2 significantly increased the serum levels of malondialdehyde, and decreased levels of antioxidants. At the histopathological level, the testes of the CdCl2 group exhibited congestion, edema in the interstitial blood vessels, irregular arrangement of the epithelial lining of the seminiferous tubules, and degeneration and sloughing of the spermatogenic cells, which accumulated in the center of the seminiferous tubules. Such pathological alterations were ameliorated following treatment with GSE in the CdCl2 plus GSE group. The immunohistochemical expression of B‑cell lymphoma 2‑associated X protein was high in the CdCl2 group, and low in the control and GSE groups. Co‑treatment with GSE and CdCl2 exhibited ameliorative effects on the immunoreactivity of B‑cell lymphoma 2‑associated X protein. CdCl2 toxicity induced a significant downregulation in the mRNA expression levels of cytochrome P450 cholesterol side‑chain cleavage enzyme, cytochrome P450 17A1, 3β‑hydroxysteroid dehydrogenase (3β‑HSD), 17β‑HSD, androgen receptor, steroidogenic acute regulatory protein, and follicle‑stimulating hormone receptor. GSE administration exhibited a stimulatory effect on steroidogenesis‑associated enzymes, and co‑treatment with GSE and CdCl2 normalized and upregulated the mRNA expression levels of these examined genes. This study concluded that GSE has beneficial protective effects against the deleterious effects of CdCl2 on the testis.

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