The biological effects of extremely low-frequency electromagnetic fields (ELF-EMF) exposure are not fully clarified. We conducted this investigation to explore the effects of ELF-EMF on hematologic and biochemical indexes in adult rats. Thirty adult male Sprague-Dawley rats were exposed to ELF-EMF at 1 mT for 24 weeks, while another 30 SD rats were sham exposed. During the exposure, peripheral blood was collected every 4 weeks to analyze the hematologic parameters and biochemical indexes. The morphology of liver and kidney was detected by hematoxylin-eosin staining at the end of the experiment. Exposed to ELF-EMF at 1 mT did not exert any statistic difference on hematologic parameters including total white blood cell count, neutrophil ratio, lymphocyte ratio, red blood cells, hemoglobin concentration and platelets count, compared to the control group. Similarly, biochemical indexes, such as glucose, lipid profile, liver function and renal function, were not affected by ELF-EMF exposure. In addition, no morphological change was observed in the liver and kidney from the exposure group. The exposure to ELF-EMF at the intensity of 1 mT for 24 weeks did not affect hematologic and biochemical indexes in adult rats.

中文翻译：

---

1 mT极低频电磁场暴露对大鼠血象和血液生化的影响

极低频电磁场 (ELF-EMF) 暴露的生物学效应尚未完全阐明。我们进行这项调查是为了探讨 ELF-EMF 对成年大鼠血液学和生化指标的影响。30 只成年雄性 Sprague-Dawley 大鼠在 1 mT 下暴露于 ELF-EMF 24 周，而另外 30 只 SD 大鼠被假暴露。暴露期间每4周采集一次外周血，分析血液学参数和生化指标。实验结束时通过苏木精-伊红染色检测肝肾形态。暴露于 1 mT 的 ELF-EMF 不会对血液学参数产生任何统计差异，包括总白细胞计数、中性粒细胞比率、淋巴细胞比率、红细胞、血红蛋白浓度和血小板计数，与对照组相比。同样，葡萄糖、血脂、肝功能和肾功能等生化指标不受 ELF-EMF 暴露的影响。此外，暴露组的肝脏和肾脏未观察到形态学变化。暴露于 1 mT 强度的 ELF-EMF 24 周不影响成年大鼠的血液学和生化指标。