Background: Ceratonia silique (Ceratonia) is a medicinal herb with antioxidant properties that reduces oxidative stress. Objective: The aim of this study was to investigate the antioxidant effects of Ceratonia extract on improving the toxicity induced by cyclophosphamide (CP) on spermatogenesis. Materials and Methods: 54 male Wistar rats (4 months old) weighing 200-250 gr were randomly divided into 6 groups (n = 9/each): “group 1 (control) underwent the normal diet and water; group 2 (sham) received 2 ml/day normal saline; group 3 (positive control) received 300 mg/kg/day Ceratonia extract; group 4 (Ceratonia + CP) received Ceratonia extract (300 mg/kg/day) + 5 mg/kg/day CP (Endoxan, baxter oncology gmbh, Germany) after 4 hr; group 5 (CP) received 5 mg/kg/day CP + normal saline 4 hr after it; and group 6 (CP + Ceratonia) received Ceratonia extract (300 mg/kg/day) 4 hr after 5 mg/kg/day CP.” 24 hr after the last gavage, heart blood sampling was performed to measure the levels of malondialdehyde (MDA), ferric reducing antioxidant power, testosterone, luteinizing hormone, and follicle-stimulating hormone. The left caudal epididymis was cut in the Ham’s F10 and the released spermatozoa were used to analyze sperm parameters. The histology of the right testes was studied using stereological techniques and the left testes were used to measure the level of tissue MDA and ferric reducing antioxidant power. Results: A significant increase in the mean level of MDA (p = 0.013) was seen in the CP compared to the control group. Sperm motility (p = 0.001) and count (p = 0.002), serum and tissue total antioxidant (p ≤ 0.001) and serum testosterone levels (p = 0.019) decreased in the CP compared to the control group. Ceratonia extract could significantly prevent the adverse effects of CP on sperm motility (p < 0.001), the mean levels of tissue MDA (p = 0.018), serum total antioxidant (p = 0.045), and testosterone (p < 0.001). Conclusion: The Ceratonia extract can modify the reproductive toxicity of CP in rat due to the presence of antioxidant compounds. Key words: Cyclophosphamide, Ceratonia siliqua, Spermatogenesis, Rat, Spermatogenesis indexes.
Cyclophosphamide (CP) is one of the chemotherapeutic drugs, which plays its role by interfering with all rapidly proliferating tissues like cancer and testis. The aim of this study was to investigate the protective effect of pentoxifylline (PTX) on the sperm parameters, spermatogenesis indices, biochemical alterations and gene expressions, in adult male mice treated with CP. A total of 24 male NMRI mice were divided into four groups: control, CP group (15 mg/kg weekly), PTX (100 mg/kg daily) and CP + PTX and treated for 35 days with the intraperitoneal injection. A significant decrease in the spermatogenesis indices, Leydig cells, sperm motility, viability, count, tail length and daily sperm production was found in the CP group compared to the control group. The results of this study indicate that PTX prevented these adverse effects of CP and decreased the number of apoptotic cells. Moreover, the CP group showed decreased levels of total antioxidant capacity, testosterone, lipid peroxidation and the expression of cytochrome P450 and 3β‐hydroxysteroid, all of which were neutralized in the CP + PTX group. It seems that PTX has the potential to be used in therapeutic regimens of cancer patients to reduce the side effects of CP. However, more research is needed to evaluate this prevention in mice models of cancer.
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