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Microtubular structure impairment after GSM-modulated RF radiation exposure

2020 · Harm · Low evidence

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HarmLow evidencePaper 1039

Three-hour exposure significantly altered microtubule structure regardless of electric field strength (10, 20, 30 V/m). Three-hour exposure significantly reduced cell growth on the third post-exposure day regardless of field strength; a similar reduction was …

Study snapshot

Publicationmanual · 2020
Study typein_vitro
Reported directionHarm
Evidence ratingLow

Abstract

Microtubular structure impairment after GSM-modulated RF radiation exposure Ana Marija Marjanović Čermak, Krunoslav Ilić, Ivan Pavičić. Microtubular structure impairment after GSM- modulated RF radiation exposure. Arh Hig Rada Toksikol. 2020 Oct 6;71(3):205-210. doi: 10.2478/aiht-2020-71- 3267 Abstract The objective of the study was to investigate whether low-level 915 MHz GSM-modulated radiofrequency (RF) radiation impairs microtubular structure and affects normal cell growth. V79 cells were exposed to a GSM- modulated field in a Gigahertz Transversal Electromagnetic Mode cell (GTEM cell) for 1, 2, and 3 h. Signal generator combined with power and chip modulator generated the electromagnetic field (EMF). The electric field strength was adjusted to 10, 20, and 30 V/m, and the average specific absorption rate (SAR) was calculated to be 0.23, 0.8, and 1.6 W/kg. The structure of microtubule proteins was assessed by indirect immunocytochemistry, and cell growth was determined based on cell counts taken every day over six post- exposure days. Three-hour radiation exposure significantly altered microtubule structure regardless of the electric field strength. Moreover, on the third post-exposure day, three-hour radiation significantly reduced cell growth, regardless of field strength. The same was observed with two-hour exposure at 20 and 30 V/m. In conclusion, 915 MHz GSM-modulated RF radiation affects microtubular proteins in a time-dependent manner, which, in turn, affects cell proliferation. Our future research will focus on microtubule structure throughout the cell cycle and RF radiation effects on mitotic spindle. Open access paper: ncbi.nlm.nih.gov

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typein_vitro
Effect directionharm
PopulationV79 cells
Sample sizeNot supplied
ExposureRF · 915 MHz · 1, 2, and 3 h
Evidence strengthLowConfidence: 78% · Peer reviewed: unknown

Main findings

Three-hour exposure significantly altered microtubule structure regardless of electric field strength (10, 20, 30 V/m). Three-hour exposure significantly reduced cell growth on the third post-exposure day regardless of field strength; a similar reduction was observed with two-hour exposure at 20 and 30 V/m.

Outcomes measured

  • Microtubule structure (indirect immunocytochemistry)
  • Cell growth/proliferation (cell counts over six post-exposure days)

Limitations

  • Sample size not reported in abstract
  • In vitro cell model (V79) limits direct inference to human health outcomes
  • SAR values reported as calculated averages; exposure characterization details beyond field strength/SAR not provided in abstract
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "RF",
    "source": "GSM-modulated field (GTEM cell exposure)",
    "frequency_mhz": 915,
    "sar_wkg": null,
    "duration": "1, 2, and 3 h"
  },
  "population": "V79 cells",
  "sample_size": null,
  "outcomes": [
    "Microtubule structure (indirect immunocytochemistry)",
    "Cell growth/proliferation (cell counts over six post-exposure days)"
  ],
  "main_findings": "Three-hour exposure significantly altered microtubule structure regardless of electric field strength (10, 20, 30 V/m). Three-hour exposure significantly reduced cell growth on the third post-exposure day regardless of field strength; a similar reduction was observed with two-hour exposure at 20 and 30 V/m.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in abstract",
    "In vitro cell model (V79) limits direct inference to human health outcomes",
    "SAR values reported as calculated averages; exposure characterization details beyond field strength/SAR not provided in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "unknown",
  "keywords": [
    "915 MHz",
    "GSM-modulated",
    "radiofrequency",
    "RF radiation",
    "GTEM cell",
    "V79 cells",
    "microtubules",
    "immunocytochemistry",
    "cell proliferation",
    "SAR",
    "electric field strength"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.2478/aiht-2020-71
PubMed: Not supplied

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