Protective Effects of Flavonoid-rich and Saponin-rich Fractions from Cyperus esculentus and Phoenix dactylifera on Aluminum Chloride-induced Testicular Damage in Male Wistar Rats

Abstract

Background: Testicular toxicity represents a significant concern in male reproductive health, with various environmental toxins, such as aluminum chloride, contributing to compromised testicular function and fertility. This study investigates the potential protective effects of flavonoid and saponin extracts from two natural sources, Cyperus esculentus (tigernut) and Phoenix dactylifera (date fruit), against aluminum chloride-induced testicular damage in male Wistar rats. Methods: A controlled experimental study design was employed, involving twenty-four male Wistar rats that were randomly assigned to five groups for a treatment duration of 28 days. The groups consisted of a control group receiving a standard diet and water, an aluminum chloride-treated group, and three experimental groups that received aluminum chloride alongside one or both of the plant extracts. The extracts were administered daily for the 14-day period. Histological assessments were performed to analyze testicular architecture, while sperm parameters—including motility, viability, and morphology—were evaluated following the treatment. Additionally, hormonal assessments for testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) were conducted to evaluate the restoration of hormonal levels. Results: Histological analysis indicated significant testicular damage in the group treated with aluminum chloride, which exhibited degeneration of seminiferous tubules. Conversely, treatment with extracts from C. esculentus and P. dactylifera provided varying degrees of protective effects, with the combination extract demonstrating the most pronounced restorative effects. Improvements in sperm parameters, including motility, viability, and morphology, were notably observed in the groups treated with plant extracts, especially in the combined extract group, which showed results comparable to the control group. Hormonal assays revealed restored levels of testosterone, FSH, and LH in the extract-treated groups, particularly in those receiving the combined extracts (p < 0.05). Conclusion: The findings of this study indicate that flavonoid and saponin extracts derived from Cyperus esculentus and Phoenix dactylifera exhibit significant protective effects against testicular toxicity induced by aluminum chloride. These extracts appear to enhance testicular architecture, improve sperm quality, and restore hormone levels, suggesting their potential role in addressing reproductive health issues associated with environmental toxin exposure. Further research is warranted to explore the underlying mechanisms and potential clinical applications of these natural products.