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The effects of microwave emitted by cellular phones on ovarian follicles in rats

Arch Gynecol Obstet · 2009 · Harm · Low evidence

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HarmLow evidencePaper 2423

Female rat pups from pregnancies exposed to mobile phone microwaves had a lower number of ovarian follicles than controls. The authors interpret this as suggesting intrauterine exposure has toxic effects on ovaries.

Study snapshot

PublicationArch Gynecol Obstet · 2009
Study typeanimal
Reported directionHarm
Evidence ratingLow

Abstract

Objective: The aim of this study was to investigate whether there were any toxic effects of microwaves of cellular phones on ovaries in rats. Methods: In this study, 82 female pups of rats, aged 21 days (43 in the study group and 39 in the control group) were used. Pregnant rats in the study group were exposed to mobile phones that were placed beneath the polypropylene cages during the whole period of pregnancy. The cage was free from all kinds of materials, which could affect electromagnetic fields. A mobile phone in a standby position for 11 h and 45 min was turned on to speech position for 15 min every 12 h and the battery was charged continuously. On the 21st day after the delivery, the female rat pups were killed and the right ovaries were removed. The volumes of the ovaries were measured and the number of follicles in every tenth section was counted. Results: The analysis revealed that in the study group, the number of follicles was lower than that in the control group. The decreased number of follicles in pups exposed to mobile phone microwaves suggest that intrauterine exposure has toxic effects on ovaries. Conclusion: We suggest that the microwaves of mobile phones might decrease the number of follicles in rats by several known and, no doubt, countless unknown mechanisms.

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 typeanimal
Effect directionharm
PopulationPregnant rats and female rat pups (21 days old at assessment)
Sample size82
Exposuremicrowave · Pregnant rats exposed during the whole period of pregnancy; phone on standby 11 h 45 min and in speech position 15 min every 12 h (battery charged continuously)
Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Female rat pups from pregnancies exposed to mobile phone microwaves had a lower number of ovarian follicles than controls. The authors interpret this as suggesting intrauterine exposure has toxic effects on ovaries.

Outcomes measured

  • Ovary volume
  • Number of ovarian follicles (counted in every tenth section)

Limitations

  • No exposure metrics reported (e.g., frequency, SAR, field strength).
  • Exposure description suggests phone use pattern but does not quantify dose at the animals.
  • Mechanistic claims are speculative in the conclusion.
View raw extracted JSON
{
  "study_type": "animal",
  "exposure": {
    "band": "microwave",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "Pregnant rats exposed during the whole period of pregnancy; phone on standby 11 h 45 min and in speech position 15 min every 12 h (battery charged continuously)"
  },
  "population": "Pregnant rats and female rat pups (21 days old at assessment)",
  "sample_size": 82,
  "outcomes": [
    "Ovary volume",
    "Number of ovarian follicles (counted in every tenth section)"
  ],
  "main_findings": "Female rat pups from pregnancies exposed to mobile phone microwaves had a lower number of ovarian follicles than controls. The authors interpret this as suggesting intrauterine exposure has toxic effects on ovaries.",
  "effect_direction": "harm",
  "limitations": [
    "No exposure metrics reported (e.g., frequency, SAR, field strength).",
    "Exposure description suggests phone use pattern but does not quantify dose at the animals.",
    "Mechanistic claims are speculative in the conclusion."
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "microwave",
    "intrauterine exposure",
    "pregnancy",
    "rat pups",
    "ovary",
    "ovarian follicles",
    "reproductive toxicity"
  ],
  "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: 10.1007/s00404-009-0972-9
PubMed: 19241083

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