Background: The effects of D-ribose L-cysteine on nicotine-induced testicular toxicity in male Wistar rats were examined in this study. Twenty healthy adult male Wistar rats with an average weight of 200 g were grouped as normal control, nicotine (2 mg/kg), D-ribose L-cysteine (30 mg/kg) + nicotine (2 mg/kg), and D-ribose L-cysteine (30 mg/kg). The animals were administered intraperitoneally for 35 days consecutively. Epididymal sperm concentration, motile count, total counts, morphology, and progressive assessment were estimated. Antioxidant levels, tissue protein and testicular histology were also assessed. Results: This study showed reduced antioxidant levels (catalase, super-dioxide dismutase, and glutathione peroxidase) and increased malondialdehyde levels in the nicotine group relative to normal control group, D-ribose L-cysteine group and D-ribose L-cysteine + nicotine group. This study also showed significant reduction in testicular mass, sperm motile count, concentration, total count, and morphology in nicotine group (p < 0.05) compared to normal control group and D-ribose L-cysteine groups. There was improvement in sperm motility, viability, morphology, counts, in group co-treated with D-ribose L-cysteine, and nicotine relative to nicotine group. Likewise, the degenerative seminiferous tubule histoarchitecture due to nicotine was improved by D-ribose L-cysteine. Notably, the D-ribose L-cysteine group showed superlative values in all investigated parameters relative to the other groups. Conclusion: This study demonstrated the ability of D-ribose L-cysteine to mitigate the toxic effects of nicotine on reproductive functions in male Wistar rats. It also demonstrated the pro-spermatogenic properties of the compound in boosting andrological parameters.
Objective: This study aims at investigating the protective effects of aloe vera gel on aluminum chloride-induced testicular toxicity of adult Wistar rats. Methods: Twenty male Wistar rats were randomly divided into four groups (A, B, C, and D) with five animals per group. Group A serves as the control group and received distilled water (1ml/Kg). Group B received distilled water (1ml/Kg) with 100mg/kg b.wt of aluminum chloride daily. Group C received 100mg/kg b.wt of aluminum chloride with 600mg/kg b.wt of Aloe vera gel daily. Group D received 100mg/kg b.wt of aluminum chloride with 5mg/kg b.wt of vitamin C daily. The animals were fed on standard laboratory animal diet and water ad libitum . Administration was via oral cannula for four weeks. The rats were slaughtered using cervical dislocation. The testes were harvested for seminal, biochemical and histological analysis. Results: The results demonstrate that the administration of aloe vera gel (AVG) is capable of preventing testicular toxicity due to aluminum chloride. Aluminum chloride caused a significant change in the testes and seminal parameters of group B when compared to the control animals. The level of Nitric oxide (NO) increased and the level of Superoxide dismutase (SOD) decreased significantly in rats treated with aluminum chloride. Conclusions: The administration of aloe vera gel showed a preventive response in aluminum-induced testicular toxicity of rats as evidenced by histological and biochemical analysis.
Objectives: The aim of this study was to investigate the antioxidant effect of aqueous Lawsonia inermis leaf extract on aluminum-induced oxidative stress and the histology of the pituitary gland of adult Wistar rats. Methods: Thirty-five adult male Wistar rats weighing between 100-196g and 15 mice of the same weight range were included in the study. Lawsonia inermis extracts and aluminum chloride (AlCl 3 ) were administered for a period of three weeks to five rats per group. The subjects in Group 1 (control) were given pellets and distilled water. Group 2 received 60mg/kg/d of aqueous extract of Lawsonia inermis . Group 3 was given 0.5mg/kg/d of AlCl 3 . Group 4 was administered 0.5mg/kg/d of AlCl 3 and 60mg/kg/d of aqueous Lawsonia inermis extract orally. Group 5 received 0.5mg/kg/d of AlCl 3 and 75mg/kg/d of aqueous Lawsonia inermis extract orally. Group 6 was given 0.5mg/kg/d of AlCl 3 and 100mg/kg/d of aqueous Lawsonia inermis extract orally. Group 7 was administered 0.5mg/k/d of AlCl 3 and 5mg/Kg/d ascorbic acid in distilled water orally. Twenty-four hours after the last administration, the animals were weighed, sedated with chloroform, and had their pituitary glands located, removed, and weighed on an electronic analytical balance. Results: Decreased cell counts were observed in the pituitary gland micrographs of the Wistar rats given 0.5mg of aluminum chloride, whereas the Wistar rats given 0.5mg of aluminum chloride and varying doses of Lawsonia inermis had increased dose-dependent cell counts. Conclusion: Aqeuous Lawsonia Inermis leaf extract increased the cell counts of the pituitary glands of adult male Wistar rats, in addition to alleviating aluminum-induced oxidative stress.
Tetrapleura tetraptera (TT) has been used as a spice, dietary supplement and medicine for various ailments. This study evaluate influence of Tetrapleura tetraptera extract on testis and copulatory behavior in sexually mature male rats. Thirty-two male and sixty-four virgin female rats weighing 150–200 g were used for this study. Male rats randomly divided into four groups of eight (n = 8) rats each. Group A: Control given 2 ml distilled water, group B, C and D received 50, 300 and 700 mg/kg bwt TT for 56 days through oral gavage. The female rats were used for fertility test. Testicular histology, histomorphology, copulatory behavior, sperm parameters, testosterone (TET), luteinizing hormone (LH), follicle stimulating hormone (FSH), glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), malondialdehyde (MDA) and fertility test were investigated. Tetrapleura tetraptera significantly increase sperm count, motility, normal morphology, daily sperm production, efficiency of sperm production, sperm (average path velocity, straight line velocity and curvilinear velocity), TET, LH, FHS, SOD, GPx, CAT, number of pregnant females, number of fetuses, seminiferous diameter, epithelium thickness and decrease abnormal morphology, seminiferous height, tubule lumen and MDA across the group as compared with control group. Improved testicular histological integrity, sexual behaviour and libido by increased frequencies of mount, intromission, ejaculation and ejaculatory latency. Latencies of mount, intromission and post-ejaculation were significantly reduced. Also, observed increase spermatocytes and spermatids showed no significant difference in spermatogonia cell counts. Tetrapleura tetraptera therefore, enhance steroidogenesis, spermatogenesis, and improved testicular histological integrity and boost sexual competence in male rats.
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