Sharma Archana, Kesari Kavindra K, Saxena Virender K, Sisodia Rashmi
Neurobiology Laboratory, Department of Zoology, University of Rajasthan, Jaipur, India.
Gen Physiol Biophys. 2017 Jan;36(1):41-51. doi: 10.4149/gpb_2016026. Epub 2016 Oct 27.
Our objective was to investigate alterations in the developing mice brain after intrauterine microwave exposure from different gestation days (0.25 and 11.25) till term. Pregnant mice from 0.25 and 11.25 days of gestation were isolated from an inbred colony and divided into sham-exposed (control) and microwave-exposed (10 GHz) groups. The follow-up study of mice at 3 weeks of age showed significant reduction in the brain and body weight of microwave-exposed group. Results showed an increased level of lipid peroxidation, decreased level of glutathione and protein after microwave exposure on both 0.25 and 11.25 day of gestation. Moreover, changes in cytoarchitechure of hippocampus and cerebellum of the brain and reduction in Purkinje cell number were observed statistically significant after microwave exposure from both 0.25 and 11.25 days of gestation. In conclusion, the degree of severity of damage in neonatal mice brain was much higher, when exposure started from 0.25 day of gestation compared to 11.25 days of gestation.
我们的目的是研究从不同妊娠天数(0.25和11.25)直至足月进行宫内微波照射后发育中小鼠大脑的变化。将妊娠0.25天和11.25天的怀孕小鼠从近交群体中分离出来,分为假照射(对照)组和微波照射(10吉赫兹)组。对3周龄小鼠的后续研究表明,微波照射组的大脑和体重显著降低。结果显示,在妊娠0.25天和11.25天进行微波照射后,脂质过氧化水平升高,谷胱甘肽和蛋白质水平降低。此外,在妊娠0.25天和11.25天进行微波照射后,大脑海马体和小脑的细胞结构变化以及浦肯野细胞数量减少在统计学上具有显著意义。总之,与妊娠11.25天相比,从妊娠0.25天开始照射时,新生小鼠大脑的损伤严重程度要高得多。