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Effects of low-level combined static and weak low-frequency alternating magnetic fields on cytokine production and tumor development in mice
Electromagnetic Biology and Medicine ( IF 1.6 ) Pub Date : 2018-11-26 , DOI: 10.1080/15368378.2018.1545667
Elena G Novoselova 1 , Vadim V Novikov 1 , Sergey M Lunin 1 , Olga V Glushkova 1 , Tatyana V Novoselova 1 , Svetlana B Parfenyuk 1 , Sergey V Novoselov 1 , Maxim O Khrenov 1 , Evgeny E Fesenko 1
Affiliation  

ABSTRACT We investigated the effects of weak combined magnetic fields (MFs) produced by superimposing a constant MF (in the range 30 - 150 µT) and an alternating MF (100 or 200 nT) on cytokine production in healthy Balb/C male mice exposed 2 h daily for 14 days. The alternating magnetic field was a sum of several frequencies (ranging from 2.5 - 17.5 Hz). The frequencies of the alternating magnetic field were calculated formally based on the cyclotron resonance of ions of free amino acids (glutamic and aspartic acids, arginine, lysine, histidine, and tyrosine). The selection of different intensity and frequency combinations of constant and alternating magnetic fields was performed to find the optimal characteristics for cytokine production stimulation in immune cells. MF with a constant component of 60 μT and an alternating component of 100 nT, which was a sum of six frequencies (from 5 to 7 Hz), was found to stimulate the production of tumor necrosis factor-α, interferon-gamma, interleukin-2, and interleukin-3 in healthy mouse cells and induce cytokine accumulation in blood plasma. Then, we studied the effect of this MF on tumor-bearing mice with solid tumors induced by Ehrlich ascite carcinoma cells by observing tumor development processes, including tumor size, mouse survival rate, and average lifespan. Tumor-bearing mice exposed to a combined constant magnetic field of 60 μT and an alternating magnetic field of 100 nT containing six frequencies showed a strong suppression of tumor growth with an increase in survival rate and enhancement of average lifespan.

中文翻译:

低水平组合静态和弱低频交变磁场对小鼠细胞因子产生和肿瘤发展的影响

摘要 我们研究了通过叠加恒定 MF(在 30 - 150 µT 范围内)和交替 MF(100 或 200 nT)产生的弱组合磁场 (MF) 对暴露于 2 的健康 Balb/C 雄性小鼠细胞因子产生的影响。 h 每天 14 天。交变磁场是几个频率的总和(范围为 2.5 - 17.5 Hz)。交变磁场的频率基于游离氨基酸(谷氨酸和天冬氨酸、精氨酸、赖氨酸、组氨酸和酪氨酸)离子的回旋共振正式计算。进行恒定和交变磁场的不同强度和频率组合的选择,以寻找免疫细胞中细胞因子产生刺激的最佳特征。MF 具有 60 μT 的恒定分量和 100 nT 的交替分量,它是六个频率(从 5 到 7 Hz)的总和,被发现可以刺激健康小鼠细胞中肿瘤坏死因子-α、干扰素-γ、白细胞介素-2 和白细胞介素-3 的产生,并诱导血液中细胞因子的积累等离子体。然后,我们通过观察肿瘤发展过程,包括肿瘤大小、小鼠存活率和平均寿命,研究了这种MF对艾氏腹水癌细胞诱导的实体瘤荷瘤小鼠的影响。暴露于 60 μT 恒定磁场和包含 6 个频率的 100 nT 交变磁场组合的荷瘤小鼠显示出对肿瘤生长的强烈抑制,增加了存活率并延长了平均寿命。干扰素-γ、白细胞介素-2 和白细胞介素-3 在健康小鼠细胞中并诱导血浆中细胞因子的积累。然后,我们通过观察肿瘤发展过程,包括肿瘤大小、小鼠存活率和平均寿命,研究了这种MF对艾氏腹水癌细胞诱导的实体瘤荷瘤小鼠的影响。暴露于 60 μT 恒定磁场和包含 6 个频率的 100 nT 交变磁场组合的荷瘤小鼠显示出对肿瘤生长的强烈抑制,增加了存活率并延长了平均寿命。干扰素-γ、白细胞介素-2 和白细胞介素-3 在健康小鼠细胞中并诱导血浆中细胞因子的积累。然后,我们通过观察肿瘤发展过程,包括肿瘤大小、小鼠存活率和平均寿命,研究了这种MF对艾氏腹水癌细胞诱导的实体瘤荷瘤小鼠的影响。暴露于 60 μT 恒定磁场和包含 6 个频率的 100 nT 交变磁场组合的荷瘤小鼠显示出对肿瘤生长的强烈抑制,增加了存活率并延长了平均寿命。我们通过观察肿瘤发展过程,包括肿瘤大小、小鼠存活率和平均寿命,研究了这种MF对艾氏腹水癌细胞诱导的实体瘤荷瘤小鼠的影响。暴露于 60 μT 恒定磁场和包含 6 个频率的 100 nT 交变磁场组合的荷瘤小鼠显示出对肿瘤生长的强烈抑制,增加了存活率并延长了平均寿命。我们通过观察肿瘤发展过程,包括肿瘤大小、小鼠存活率和平均寿命,研究了这种MF对艾氏腹水癌细胞诱导的实体瘤荷瘤小鼠的影响。暴露于 60 μT 恒定磁场和包含 6 个频率的 100 nT 交变磁场组合的荷瘤小鼠显示出对肿瘤生长的强烈抑制,增加了存活率并延长了平均寿命。
更新日期:2018-11-26
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