Extremely High Frequency Electromagnetic Radiation Enforces Bacterial Effects of Inhibitors and Antibiotics

Tadevosyan, Hasmik; Kalantaryan, V. P.; Trchоunian, Armen

doi:10.1007/s12013-008-9020-9

Cited by 34 publications

(36 citation statements)

References 34 publications

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“…Bacterial resistance to one or more antibiotics occurs by various mechanisms (24)(25)(26). In this way, EMFs as an environmental agent could influence cellular responses such as antimicrobial susceptibility through different pathways (4,20,22,23,27). The aim of the present study was to evaluate the antimicrobial susceptibility of K. pneumoniae under 900 MHz radiofrequency radiations condition.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the 900 MHz Radiofrequency Radiation Effects on the Antimicrobial Susceptibility and Growth Rate of Klebsiella pneumoniae

et al. 2017

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Introduction: Drug resistance to one or more antibiotics is mainly believed to be a serious threat to global public health which occurs by various mechanisms. The electromagnetic field as a nonchemical tool is capable of altering the antimicrobial susceptibility of bacteria. The aim of this study is the evaluation of the antimicrobial susceptibility of the Klebsiella pneumoniae to antibiotics before and after exposure to 900 MHz radiofrequency (RF) radiation produced by a mobile phone.Methods: Antimicrobial susceptibility of the bacteria to antibiotics disks were performed after exposure to 900 MHz radiofrequency radiation. Antimicrobial susceptibility was carried out by Kirby-Bauer and the inhibition zone of each antibiotic disk was measured (as mean). Additionally, growth variations under exposure were recorded and an outgrowth curve was drawn.Results: Based on the results, after 12 hours of exposure to 900MHz radiofrequency, there was observed a maximum increase in the sensitivity of K. pneumoniae and shown that radiofrequency (RF) radiation can change antimicrobial sensitivity significantly (P < 0.05). Also, the radiofrequency radiation effect on the bacterial proliferation was evaluated and showed that exposure enables the bacteria to grow faster in the exponential phase than the non-exposed bacteria. Conclusions:The findings of the study indicated that the sensitivity of K. pneumoniae was significantly increased to the various antibiotics after 12 hours of exposure to 900 MHz radiofrequency radiation. These observations could be interpreted by the concept of non-linearity in the responses of K. pneumoniae to different antibiotics after exposure to electromagnetic radiofrequency radiation and can be useful in the management of serious infectious diseases.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the 900 MHz Radiofrequency Radiation Effects on the Antimicrobial Susceptibility and Growth Rate of Klebsiella pneumoniae

et al. 2017

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“…Bacterial effects of extremely high frequency EMI might be explained by EMI effects on membrane structure and function [13][14][15], water properties [2,8,16,17], and on genome or DNA [18][19][20][21] and/or by the EMI transformation into informative biological signals at specific resonant frequencies [3,13,22]. Besides, extremely high frequency EMI can be used as a convenient band for communications within and between bacteria [3,22].…”

Section: Introductionmentioning

confidence: 99%

Low Intensity Electromagnetic Irradiation with 70.6 and 73 GHz Frequencies Affects Escherichia coli Growth and Changes Water Properties

Torgomyan

Kalantaryan

Trchоunian

2011

Cell Biochem Biophys

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The low intensity electromagnetic irradiation (EMI) of the 70.6 and 73 GHz frequency is resonant for Escherichia coli but not for water. In this study, E. coli irradiation with this EMI during 1 h directly and in bi-distilled water or in the assay buffer with those frequencies resulted with noticeable changes in bacterial growth parameters. Furthermore, after EMI, 2 h rest of bacteria renewed their growth in 1.2-fold, but repeated EMI--had no significant action. Moreover, water absorbance, pH, and electric conductance were changed markedly after such irradiation. The results point out that EMI of the 70.6 and 73 GHz frequency can interact with bacteria affecting growth and in the same time with the surrounding medium (water) as well.

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“…[1][2][3]. According to literature, the millimeter-wave therapy increases the level of immune resistance, influences different stages of pathogenesis, changes enzymatic reaction activity and growth rate, destroys microorganisms, and increases the thermostability of DNA [4][5][6]. The literature has shown that millimeter waves have strong effect on the process and bioelectric activity of neurochemical functions of the brain, increase the cortical tension, and influence the spike activity of neurons in the supraoptic nucleus of the hypothalamus in rats [7,8].…”

Section: Introductionmentioning

confidence: 99%

Effect on Tumoral Cells of Low Intensity Electromagnetic Waves

Kalantaryan¹,

Martirosyan²,

Nersesyan³

et al. 2011

PIER Letters

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Abstract-Violations of the process of methylation reveal itself at the early stages of malignant transformation of cells, and the content of 5-methylcytosine can serve as a diagnostic test for tumor formation and treatment of disease. The carried out studies revealed the correlation of antitumor activity of MM-therapy (the use of coherent millimeter electromagnetic waves of low intensity for therapy) with inhibition of methylation of tumor DNA in vivo. It is revealed in our experiments that an half-hour exposure of MM-radiation results in the tumor growth inhibition by 33.5% and a sharp suppression of the level of DNA-methylation 2.5 times. The results obtained in this experiment indicate the prospects of working out the MM-therapy for clinical oncology in the treatment of malignant neoplasms.

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Extremely High Frequency Electromagnetic Radiation Enforces Bacterial Effects of Inhibitors and Antibiotics

Cited by 34 publications

References 34 publications

Evaluation of the 900 MHz Radiofrequency Radiation Effects on the Antimicrobial Susceptibility and Growth Rate of Klebsiella pneumoniae

Evaluation of the 900 MHz Radiofrequency Radiation Effects on the Antimicrobial Susceptibility and Growth Rate of Klebsiella pneumoniae

Low Intensity Electromagnetic Irradiation with 70.6 and 73 GHz Frequencies Affects Escherichia coli Growth and Changes Water Properties

Effect on Tumoral Cells of Low Intensity Electromagnetic Waves

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