Radioprotective effects of honeybee venom (Apis mellifera) against 915-MHz microwave radiation-induced DNA damage in wistar rat lymphocytes: in vitro study.

International journal of toxicology · 2009 · Benefit · Low evidence

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BenefitLow evidencePaper 6490

In Wistar rat lymphocytes exposed to 915-MHz microwave radiation (SAR 0.6 W/kg), pre-treatment with bee venom (1 µg/mL) decreased DNA damage compared with irradiated samples. Fpg-modified comet assay parameters were statistically different from controls and s…

Study snapshot

PublicationInternational journal of toxicology · 2009
Study typein_vitro
Reported directionBenefit
Evidence ratingLow

Abstract

The aim of this study is to investigate the radioprotective effect of bee venom against DNA damage induced by 915-MHz microwave radiation (specific absorption rate of 0.6 W/kg) in Wistar rats. Whole blood lymphocytes of Wistar rats are treated with 1 microg/mL bee venom 4 hours prior to and immediately before irradiation. Standard and formamidopyrimidine-DNA glycosylase (Fpg)-modified comet assays are used to assess basal and oxidative DNA damage produced by reactive oxygen species. Bee venom shows a decrease in DNA damage compared with irradiated samples. Parameters of Fpg-modified comet assay are statistically different from controls, making this assay more sensitive and suggesting that oxidative stress is a possible mechanism of DNA damage induction. Bee venom is demonstrated to have a radioprotective effect against basal and oxidative DNA damage. Furthermore, bee venom is not genotoxic and does not produce oxidative damage in the low concentrations used in this study.

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 directionbenefit
PopulationWistar rat lymphocytes (whole blood lymphocytes)
Sample sizeNot supplied
Exposuremicrowave · 915 MHz · 0.6 W/kg
Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

In Wistar rat lymphocytes exposed to 915-MHz microwave radiation (SAR 0.6 W/kg), pre-treatment with bee venom (1 µg/mL) decreased DNA damage compared with irradiated samples. Fpg-modified comet assay parameters were statistically different from controls and suggested oxidative stress as a possible mechanism of DNA damage induction; bee venom at the tested low concentration was reported as not genotoxic and not producing oxidative damage.

Outcomes measured

  • Basal DNA damage (comet assay)
  • Oxidative DNA damage (Fpg-modified comet assay)
  • Genotoxicity/oxidative damage from bee venom alone

Limitations

  • In vitro study (lymphocytes/whole blood), not an in vivo health outcome study
  • Sample size not reported in the abstract
  • Exposure duration and irradiation conditions beyond frequency/SAR not reported in the abstract
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": 915,
    "sar_wkg": 0.6,
    "duration": null
  },
  "population": "Wistar rat lymphocytes (whole blood lymphocytes)",
  "sample_size": null,
  "outcomes": [
    "Basal DNA damage (comet assay)",
    "Oxidative DNA damage (Fpg-modified comet assay)",
    "Genotoxicity/oxidative damage from bee venom alone"
  ],
  "main_findings": "In Wistar rat lymphocytes exposed to 915-MHz microwave radiation (SAR 0.6 W/kg), pre-treatment with bee venom (1 µg/mL) decreased DNA damage compared with irradiated samples. Fpg-modified comet assay parameters were statistically different from controls and suggested oxidative stress as a possible mechanism of DNA damage induction; bee venom at the tested low concentration was reported as not genotoxic and not producing oxidative damage.",
  "effect_direction": "benefit",
  "limitations": [
    "In vitro study (lymphocytes/whole blood), not an in vivo health outcome study",
    "Sample size not reported in the abstract",
    "Exposure duration and irradiation conditions beyond frequency/SAR not reported in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "915 MHz",
    "microwave radiation",
    "SAR 0.6 W/kg",
    "bee venom",
    "Apis mellifera",
    "Wistar rat",
    "lymphocytes",
    "DNA damage",
    "comet assay",
    "Fpg-modified comet assay",
    "oxidative stress",
    "radioprotection"
  ],
  "suggested_hubs": [
    {
      "slug": "rf-dna-damage",
      "weight": 0.9,
      "reason": "Assesses DNA damage (standard and Fpg-modified comet assays) after 915-MHz RF/microwave exposure."
    },
    {
      "slug": "oxidative-stress",
      "weight": 0.6,
      "reason": "Fpg-modified comet assay used to assess oxidative DNA damage; oxidative stress discussed as a possible mechanism."
    }
  ]
}
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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: 10.1177/1091581809335051
PubMed: 19482833

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