Institute for Research Organisation, Hungarian Academy of Sciences, Budapest, Hungary.
Int J Radiat Biol. 2011 Jan;87(1):36-45. doi: 10.3109/09553002.2010.518200. Epub 2010 Oct 21.
PURPOSE: The present study was designed to reveal, whether the 30 min daily full body exposure of mice to an inhomogeneous static magnetic field (SMF) has a statistically significant effect on diabetic neuropathy. MATERIALS AND METHODS: Three different doses (100, 150, or 200 mg/kg) of streptozotocin (STZ) were administered intraperitoneally in groups of mice to induce diabetes. Body weight, blood glucose level and the nociceptive temperature threshold of mice were monitored for a period of 12 weeks. The group treated with 200 mg/kg i.p. STZ produced manifest diabetic neuropathy. Results were compared to non-treated (no SMF, no STZ) and SMF exposure without STZ-treatment group (SMF, no STZ) group. The inhomogeneous SMF was in the range of 2.8-476.7 mT peak-to-peak magnetic flux density. RESULTS: Whereas SMF exposure did not seem to affect body weight and nociceptive temperature threshold, it statistically significantly (p < 0.001) reduced blood glucose level in the 200 mg/kg STZ (n = 6) group. CONCLUSIONS: Daily SMF exposure repeated for several weeks is protective against the development of high blood glucose level in diabetic mice.
目的:本研究旨在揭示小鼠每天全身暴露于非均匀静态磁场(SMF) 30 分钟是否对糖尿病神经病变有统计学显著影响。
材料和方法:三组不同剂量(100、150 或 200 mg/kg)链脲佐菌素(STZ)经腹腔注射到小鼠组中以诱导糖尿病。监测小鼠体重、血糖水平和痛觉温度阈值 12 周。用 200 mg/kg i.p. STZ 处理的组产生明显的糖尿病神经病变。结果与未经处理(无 SMF,无 STZ)和无 STZ 处理的 SMF 暴露组(SMF,无 STZ)进行比较。非均匀 SMF 的峰值-峰值磁通密度范围为 2.8-476.7 mT。
结果:尽管 SMF 暴露似乎不会影响体重和痛觉温度阈值,但它在统计学上显著(p<0.001)降低了 200 mg/kg STZ(n=6)组的血糖水平。
结论:数周重复的日常 SMF 暴露可预防糖尿病小鼠高血糖的发展。
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