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Effects of Grape Seed Proanthocyanidin Extract on Side Effects of High-dose Methylprednisolone Administration in Male Rats

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Journal Toxicol Res
Specialty Toxicology
Date 2023 Oct 2
PMID 37779581
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Abstract

In this study, we investigated the effects of grape seed proanthocyanidin extract (GSPE) against the side effects of high-dose administration of methylprednisolone (MP) in male rats. A total of 32 adult Wistar male albino rats were divided into four groups: (1) control (CON), received standard food only; (2) MP, received standard food + intraperitoneal injection of 60 mg/kg MP on day 7; (3) GSPE, received standard food + 200 mg/kg/day GSPE; and (4) MP + GSPE, received standard food + 200 mg/kg/day of GSPE + intraperitoneal injection of 60 mg/kg MP on day 7. All animals in the GSPE and GSPE + MP groups were treated once a day by oral gavage for 14 consecutive days. The feed intake of rats in the MP and MP + GSPE groups decreased significantly by 24.14% and 13.52%, respectively ( < 0.05). Administration of MP resulted in significant increases in serum concentrations of blood urea nitrogen ( < 0.001), glucose ( < 0.01), alkaline phosphatase, and adrenocorticotropic hormone ( < 0.05). High-dose MP administration significantly reduced catalase ( < 0.001) and glutathione peroxidase ( < 0.05) concentrations in the liver and kidney tissues of rats, while glutathione concentrations were only reduced in liver tissue ( < 0.05). The expression levels of and in liver, kidney, and testicular tissue were significantly increased, while the expression levels of were reduced ( < 0.001). Furthermore, sperm concentration was significantly affected by GSPE in rats induced by high-dose MP, and sperm loss was significantly reduced in MP + GSPE ( < 0.05). These findings suggest that GSPE could be useful as a supplement to alleviate MP-induced toxicity in rats.

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