RF Safe

Ets1 oncogene induction by ELF-modulated 50 MHz radiofrequency electromagnetic field

Bioelectromagnetics · 2000 · Mixed · Low evidence

← Research stream
MixedLow evidencePaper 5357

In hemopoietic and testicular cell lines exposed to 50 MHz radiofrequency fields modulated 80% at 16 Hz, the authors observed overexpression of ets1 mRNA in Jurkat T-lymphoblastoid and Leydig TM3 cells. The effect was reported only with the 16 Hz modulation, …

Study snapshot

PublicationBioelectromagnetics · 2000
Study typein_vitro
Reported directionMixed
Evidence ratingLow

Abstract

We have analyzed gene expression in hemopoietic and testicular cell types after their exposure to 50 MHz radiofrequency (RF) non-ionizing radiation modulated (80%) with a 16 Hz frequency. The exposure system generates a 0.2 microT magnetic field parallel to the ground and a 60 V/m electric field orthogonal to the earth's magnetic field. Exposure conditions were selected so as to interfere with the calcium ion flow. Under these electromagnetic field (EMF) conditions, we observed an overexpression of the ets1 mRNA in Jurkat T-lymphoblastoid and Leydig TM3 cell lines. This effect was observed only in the presence of the 16 Hz modulation, corresponding to the resonance frequency for calcium ion with a DC magnetic field of 45.7 microT. We have also identified a putative candidate gene repressed after EMF exposure. The experimental model described in this paper may contribute to the understanding of the biological mechanisms involved in EMF effects.

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 directionmixed
PopulationJurkat T-lymphoblastoid and Leydig TM3 cell lines
Sample sizeNot supplied
ExposureRF · 50 MHz
Evidence strengthLowConfidence: 95% · Peer reviewed: yes

Main findings

In hemopoietic and testicular cell lines exposed to 50 MHz radiofrequency fields modulated 80% at 16 Hz, the authors observed overexpression of ets1 mRNA in Jurkat T-lymphoblastoid and Leydig TM3 cells. The effect was reported only with the 16 Hz modulation, and the authors also identified a putative candidate gene repressed after EMF exposure.

Outcomes measured

  • ets1 mRNA expression
  • gene repression of a putative candidate gene

Limitations

  • In vitro study
  • Sample size not stated
  • Exposure duration not stated
  • Specific repressed gene not identified in the abstract
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "RF",
    "source": "other",
    "frequency_mhz": 50,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Jurkat T-lymphoblastoid and Leydig TM3 cell lines",
  "sample_size": null,
  "outcomes": [
    "ets1 mRNA expression",
    "gene repression of a putative candidate gene"
  ],
  "main_findings": "In hemopoietic and testicular cell lines exposed to 50 MHz radiofrequency fields modulated 80% at 16 Hz, the authors observed overexpression of ets1 mRNA in Jurkat T-lymphoblastoid and Leydig TM3 cells. The effect was reported only with the 16 Hz modulation, and the authors also identified a putative candidate gene repressed after EMF exposure.",
  "effect_direction": "mixed",
  "limitations": [
    "In vitro study",
    "Sample size not stated",
    "Exposure duration not stated",
    "Specific repressed gene not identified in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.95,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "RF",
    "50 MHz",
    "16 Hz modulation",
    "ELF-modulated RF",
    "gene expression",
    "ets1",
    "Jurkat",
    "Leydig TM3",
    "in vitro"
  ],
  "suggested_hubs": []
}
AI can be wrong. Always verify against the paper.

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: 10.1002/(sici)1521-186x(200001)21:1<8::aid-bem3>3.0.co;2-g
PubMed: 10615087

Read the original paper →

Related papers

← Back to the Research Library