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Testicular Degeneration as a Result of Microwave Irradiation

Proceedings of the Society for Experimental Biology and Medicine · 1948 · Harm · Low evidence

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HarmLow evidencePaper 6706

A single 10-minute exposure to 12 cm electromagnetic waves (microwaves) producing a measured central testicular temperature of 35°C caused testicular degeneration in all cases; in some experiments damage occurred with temperatures between 30°C and 35°C. Infra…

Study snapshot

PublicationProceedings of the Society for Experimental Biology and Medicine · 1948
Study typeanimal
Reported directionHarm
Evidence ratingLow

Abstract

Summary A study was made concerning the effects of 12 cm electromagnetic waves and of infra red irradiations upon the testes of adult albino rats. A single ten-minute exposure to microwaves at a temperature of 35°C as measured in the central areas of the testes caused testicular degeneration in all cases. In some experiments testicular damage resulted from a single exposure at temperatures between 30° and 35°C. Testicular damage was not found in experiments in which infra red irradiation was applied for 10 minutes at 38°C but was observed when applied at a temperature of 40°C and above. The type of degeneration resulting from microwave exposure could not be distinguished from that produced by infra red.

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
PopulationAdult albino rats
Sample sizeNot supplied
Exposuremicrowave · 2500 MHz · single 10-minute exposure
Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

A single 10-minute exposure to 12 cm electromagnetic waves (microwaves) producing a measured central testicular temperature of 35°C caused testicular degeneration in all cases; in some experiments damage occurred with temperatures between 30°C and 35°C. Infrared irradiation for 10 minutes at 38°C did not produce damage, but damage was observed at 40°C and above; degeneration from microwave exposure was not distinguishable from that produced by infrared.

Outcomes measured

  • Testicular degeneration
  • Testicular damage (temperature-dependent)

Limitations

  • Sample size not reported in the abstract.
  • Exposure metrics beyond wavelength and temperature (e.g., power density/SAR) not reported.
  • Findings appear temperature-dependent; non-thermal effects cannot be assessed from the abstract.
  • Animal study; generalizability to humans not addressed.
View raw extracted JSON
{
  "study_type": "animal",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": 2500,
    "sar_wkg": null,
    "duration": "single 10-minute exposure"
  },
  "population": "Adult albino rats",
  "sample_size": null,
  "outcomes": [
    "Testicular degeneration",
    "Testicular damage (temperature-dependent)"
  ],
  "main_findings": "A single 10-minute exposure to 12 cm electromagnetic waves (microwaves) producing a measured central testicular temperature of 35°C caused testicular degeneration in all cases; in some experiments damage occurred with temperatures between 30°C and 35°C. Infrared irradiation for 10 minutes at 38°C did not produce damage, but damage was observed at 40°C and above; degeneration from microwave exposure was not distinguishable from that produced by infrared.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in the abstract.",
    "Exposure metrics beyond wavelength and temperature (e.g., power density/SAR) not reported.",
    "Findings appear temperature-dependent; non-thermal effects cannot be assessed from the abstract.",
    "Animal study; generalizability to humans not addressed."
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave irradiation",
    "12 cm electromagnetic waves",
    "infrared irradiation",
    "testes",
    "testicular degeneration",
    "albino rats",
    "thermal effects"
  ],
  "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: 10.3181/00379727-69-16729
PubMed: Not supplied

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