RF Safe

Comparison of 864 MHz and 935 MHz microwave radiation effects on cell culture.

Arhiv za higijenu rada i toksikologiju · 2006 · Mixed · Low evidence

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MixedLow evidencePaper 6442

V79 cells exposed to 864 MHz (SAR 0.08 W/kg) showed a significant decrease in growth on Day 3 after 2- and 3-hour exposures versus controls, while cells exposed to 935 MHz (SAR 0.12 W/kg) for 3 hours showed a significant increase in growth on Day 3. Colony-fo…

Study snapshot

PublicationArhiv za higijenu rada i toksikologiju · 2006
Study typein_vitro
Reported directionMixed
Evidence ratingLow

Abstract

The objective of this study was to compare the effects of 864 MHz and 935 MHz radiofrequency/microwave radiation on the ability of V79 cells to proliferate, form colonies and on their viability. For one, two and three hours, the cells were exposed to the 864 MHz field in a transversal electromagnetic mode cell (TEM) connected with amplifier and to the 935 MHz field in a gigahertz transversal electromagnetic mode cell (GTEM) equipped with a signal generator. The average specific absorption rate (SAR) was 0.08 W kg(-1) for the 864 MHz field and 0.12 W kg(-1) for the 935 MHz field. In comparison to the control cell samples, the growth curve of the 864 MHz irradiated cells showed a significant decrease after two-hour and three-hour exposure on the Day 3 after exposure. Likewise, cells exposed to 935 MHz microwaves for three hours showed a significant growth on Day 3 after exposure. The colony-forming ability and viability of cells exposed to 864 MHz and 935 MHz microwaves did not significantly differ from the matched controls. The applied RF/MW fields showed a similar effect on cell culture growth, colony-forming ability and viability of V79 cells.

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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
PopulationV79 cell culture
Sample sizeNot supplied
ExposureRF · 1, 2, and 3 hours
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

V79 cells exposed to 864 MHz (SAR 0.08 W/kg) showed a significant decrease in growth on Day 3 after 2- and 3-hour exposures versus controls, while cells exposed to 935 MHz (SAR 0.12 W/kg) for 3 hours showed a significant increase in growth on Day 3. Colony-forming ability and viability did not significantly differ from matched controls for either frequency.

Outcomes measured

  • cell proliferation/growth curve
  • colony-forming ability
  • cell viability

Limitations

  • Sample size not reported in abstract.
  • Details of exposure conditions beyond frequency, SAR, and duration (e.g., modulation, temperature control) not reported in abstract.
  • Only one cell line (V79) assessed; generalizability unclear.
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "1, 2, and 3 hours"
  },
  "population": "V79 cell culture",
  "sample_size": null,
  "outcomes": [
    "cell proliferation/growth curve",
    "colony-forming ability",
    "cell viability"
  ],
  "main_findings": "V79 cells exposed to 864 MHz (SAR 0.08 W/kg) showed a significant decrease in growth on Day 3 after 2- and 3-hour exposures versus controls, while cells exposed to 935 MHz (SAR 0.12 W/kg) for 3 hours showed a significant increase in growth on Day 3. Colony-forming ability and viability did not significantly differ from matched controls for either frequency.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in abstract.",
    "Details of exposure conditions beyond frequency, SAR, and duration (e.g., modulation, temperature control) not reported in abstract.",
    "Only one cell line (V79) assessed; generalizability unclear."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "864 MHz",
    "935 MHz",
    "radiofrequency",
    "microwave radiation",
    "SAR",
    "V79 cells",
    "TEM cell",
    "GTEM cell",
    "cell proliferation",
    "colony formation",
    "viability"
  ],
  "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: Not supplied
PubMed: 16832969

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