Sm Saumya, Mahaboob Basha P
Department of Zoology, Bangalore University, Bangalore, 560 056, India.
Biol Trace Elem Res. 2017 Jun;177(2):331-344. doi: 10.1007/s12011-016-0893-y. Epub 2016 Nov 16.
Fluoride toxicity is known to pose infertility in fluoride-intoxicated animals as well as in people residing in fluoride endemic zones. The present study addresses the degree of impairments caused due to co-exposure of high fluoride toxicity in diabetic mice. Swiss mice, Mus musculus, were subjected to fluoride toxicity by providing fluoride-supplemented drinking water (600 ppm NaF) for a period of 30 days after the confirmation of streptozotocin-induced diabetes(STZ, 50 mg/kgbw). Consequently, aggravated hyperglycemia and tissue fluoride accumulation were witnessed in fluoride-intoxicated diabetic mice; later, these toxicated mice were treated with ginseng extract (GE) and banaba leaf extract, (BLE) at dose of 150 mg/kgbw/day alone and in combination for 15 and 30-day duration to check the efficacy of phytoextracts in reversing the toxicity. The spermatological indices studied, such as sperm density, motility, viability and morphology as well as the testicular biochemical parameters showed enhanced impairment in reproductive status of fluoride-intoxicated diabetic mice. Further, 15-days administration of GE and BLE in combination at a dose of 150 mg/kgbw/day was found to be beneficial in normalizing the alterations observed upon fluoride intoxication to diabetic mice. However, the correlates showed moderate association between blood glucose levels and the spermatological as well as biochemical indices wherein the tissue fluoride levels correlate least.
已知氟中毒会导致氟中毒动物以及生活在氟病区的人群出现不育症。本研究探讨了糖尿病小鼠同时暴露于高氟毒性所造成的损伤程度。在通过链脲佐菌素(STZ,50 mg/kgbw)诱导糖尿病得到确认后,给瑞士小鼠(小家鼠)提供含氟补充饮用水(600 ppm NaF)30天,使其遭受氟中毒。结果,在氟中毒的糖尿病小鼠中出现了血糖加重和组织氟积累的情况;随后,单独或联合使用人参提取物(GE)和巴拿巴叶提取物(BLE),以150 mg/kgbw/天的剂量对这些中毒小鼠进行15天和30天的治疗,以检查植物提取物逆转毒性的功效。所研究的精子学指标,如精子密度、活力、存活率和形态,以及睾丸生化参数显示,氟中毒的糖尿病小鼠的生殖状态损伤加剧。此外,发现以150 mg/kgbw/天的剂量联合使用GE和BLE 15天,有利于使氟中毒糖尿病小鼠所观察到的改变恢复正常。然而,相关性显示血糖水平与精子学及生化指标之间存在中度关联,其中组织氟水平的相关性最小。