Department of Animal Science, Federal University Lafia, Nasarawa State, Nigeria.
National Animal Production Research Institute, Ahmadu Bello University Zaria, Nigeria.
Theriogenology. 2022 Oct 15;192:150-165. doi: 10.1016/j.theriogenology.2022.08.023. Epub 2022 Aug 21.
This study evaluated the ameliorative properties of Azanza garckeana in Bisphenol A-induced reproductive toxicities on weight, spermiogram, serum hormonal profile, sperm DNA integrity, histopathology of testes and brain tissues of rabbit bucks. Twenty-eight rabbit bucks, with live weight of 1.20-2.00 kg and aged 10-18 months. They were randomly divided into four groups of seven bucks each, group A was administered distilled water (1.5 mL) daily for 12 weeks, group B was administered Bisphenol A (100 mg/kg) for 5 consecutive days in a week for a period of 12 weeks, group C was administered Azanza garckeana (500 mg/kg) daily for 12 weeks and group D was pre-dosed with Bisphenol A (100 mg/kg) for 5 consecutive days in a week over 6 weeks period followed by Azanza garckeana (500 mg/kg) daily for another 6 weeks. Mean testicular weights differed significantly (p < 0.05) between group B (4.4 ± 0.23) when compared with groups A (8.0 ± 0.06), C (8.7 ± 0.19) and D (7.1 ± 0.18). There were significant differences (p < 0.05) in the mean reaction time, spermiogram, testosterone, follicle stimulating hormone, luteinising hormone and sperm DNA fragmentation index between Bisphenol A-exposed groups and treatment groups. On histopathology, there was testicular vacuolization, interstitial hemorrhage, reduction in spermatogenic cells following Bisphenol A exposure. There were layers of dense basophilic cells in the pineal and pituitary parenchymas. In conclusion, Bisphenol A has negative effects on reproduction but administration of Azanza garckeana may possess some therapeutic properties that can ameliorate such adverse effects.
本研究评估了苍术在双酚 A 诱导的生殖毒性中的改善作用,包括体重、精子谱、血清激素谱、精子 DNA 完整性、睾丸和脑组织的组织病理学变化,研究对象为雄性新西兰兔。将 28 只体重为 1.20-2.00kg、年龄为 10-18 个月的雄性新西兰兔随机分为四组,每组 7 只。A 组每天给予蒸馏水(1.5mL),连续 12 周;B 组每周连续 5 天给予双酚 A(100mg/kg),连续 12 周;C 组每天给予苍术(500mg/kg),连续 12 周;D 组先每周连续 5 天给予双酚 A(100mg/kg),共 6 周,然后再每天给予苍术(500mg/kg),共 6 周。B 组(4.4±0.23)的睾丸重量与 A 组(8.0±0.06)、C 组(8.7±0.19)和 D 组(7.1±0.18)相比差异有统计学意义(p<0.05)。暴露于双酚 A 的各组与治疗组之间的平均反应时间、精子谱、睾酮、促卵泡激素、促黄体生成素和精子 DNA 碎片化指数均有显著差异(p<0.05)。组织病理学检查发现,暴露于双酚 A 后睾丸出现空泡化、间质出血、生精细胞减少。松果体和垂体实质中出现密集的嗜碱性细胞层。综上所述,双酚 A 对生殖系统有不良影响,但苍术的给药可能具有一些治疗特性,可以改善这些不良反应。