"Rotation of Simple Organic Systems Can Be Induced by Low Intensity Electromagnetic Fields"

Despite the fact that there are still conflicting opinions about the damage caused by modern wireless communication technologies, most scientists report on the negative biological effects of low-intensity radio frequency electromagnetic radiation at different levels of the organization of live nature. There is no doubt that there is a need not only for a sanitary and hygienic assessment of man-made electromagnetic effects on humans, but also for an environmental assessment for biota. The purpose of the study was to assess the potential environmental risk of electromagnetic impact in the centimeter range on natural ecosystems. The initial data were the authors' own results in the field of radiobiology of non-ionizing radiation, as well as published of other researchers. The article analyzes the biological effects of radio frequency electromagnetic fields detected in organisms of different systematic groups and levels of organization. The data on the non-thermal biological effects of electromagnetic fields indicate a high sensitivity of different species to this factor. The analyzed research results emphasize the need to take into account the features of non-thermal effects of electromagnetic radiation on biota, since these radiations can have a negative impact on different hierarchical levels in natural ecosystems.

Download Full-text

Effects of electromagnetic fields of low frequency and low intensity on rat metabolism

BioMagnetic Research and Technology ◽

10.1186/1477-044x-6-3 ◽

2008 ◽

Vol 6 (1) ◽

pp. 3 ◽

Cited By ~ 17

Author(s):

Gabriele Gerardi ◽

Antonella De Ninno ◽

Marco Prosdocimi ◽

Vanni Ferrari ◽

Filippo Barbaro ◽

...

Keyword(s):

Electromagnetic Fields ◽

Low Frequency ◽

Low Intensity

Download Full-text

Information-wave interactions of ultra-low intensity electromagnetic fields with biological systems

10.1109/comcas52219.2021.9629030 ◽

2021 ◽

Author(s):

Yu. Voloshyn ◽

S. Kulish ◽

V.M. Oliynyk

Keyword(s):

Electromagnetic Fields ◽

Biological Systems ◽

Wave Interactions ◽

Low Intensity

Download Full-text

Alterations in gene expression induced by low-frequency, low-intensity electromagnetic fields

Biomechanics and Cells ◽

10.1017/cbo9780511629068.009 ◽

1994 ◽

pp. 131-144

Author(s):

B. Reipert

Keyword(s):

Gene Expression ◽

Electromagnetic Fields ◽

Low Frequency ◽

Low Intensity

Download Full-text

Effects of Low-Intensity Electromagnetic Fields on the Proliferation and Differentiation of Cultured Mouse Bone Marrow Stromal Cells

Physical Therapy ◽

10.2522/ptj.20110224 ◽

2012 ◽

Vol 92 (9) ◽

pp. 1208-1219 ◽

Cited By ~ 13

Author(s):

Cheng Zhong ◽

Xin Zhang ◽

Zhengjian Xu ◽

Rongxin He

Keyword(s):

Bone Marrow ◽

Cell Proliferation ◽

Electromagnetic Fields ◽

Stromal Cells ◽

Bone Marrow Stromal Cells ◽

Marrow Stromal Cells ◽

Control Group ◽

Mouse Bone Marrow ◽

Low Intensity ◽

Hematoxylin And Eosin

Background Electromagnetic fields (EMFs) used in stem-cell tissue engineering can help elucidate their biological principles. Objective The aim of this study was to investigate the effects of low-intensity EMFs on cell proliferation, differentiation, and cycle in mouse bone marrow stromal cells (BMSCs) and the in vivo effects of EMFs on BMSC. Methods Harvested BMSCs were cultured for 3 generations and divided into 4 groups. The methylthiotetrazole (MTT) assay was used to evaluate cell proliferation, and alkaline phosphatase activity was measured via a colorimetric assay on the 3rd, 7th, and 10th days. Changes in cell cycle also were analyzed on the 7th day, and bone nodule formation was analyzed on the 12th day. Additionally, the expression of the collagen I gene was examined by reverse transcription-polymerase chain reaction (RT-PCR) on the 10th day. The BMSCs of the irradiated group and the control group were transplanted into cortical bone of different mice femurs separately, with poly(lactic-co-glycolic acid) (PLGA) serving as a scaffold. After 4 and 8 weeks, bone the bone specimens of mice were sliced and stained by hematoxylin and eosin separately. Results The results showed that EMFs (0.5 mT, 50 Hz) accelerated cellular proliferation, enhanced cellular differentiation, and increased the percentage of cells in the G2/M+S (postsynthetic gap 2 period/mitotic phase + S phase) of the stimulation. The EMF-exposed groups had significantly higher collagen I messenger RNA levels than the control group. The EMF + osteogenic medium–treated group readily formed bone nodules. Hematoxylin and eosin staining showed a clear flaking of bone tissue in the irradiated group. Conclusion Irradiation of BMSCs with low-intensity EMFs (0.5 mT, 50 Hz) increased cell proliferation and induced cell differentiation. The results of this study did not establish a stricter animal model for studying osteogenesis, and only short-term results were investigated. Further study of the mechanism of EMF is needed.

Download Full-text