Exposure to a 900 MHz electromagnetic field for 1 hour a day over 30 days does change the histopathology and biochemistry of the rat testis.

International journal of radiation biology · 2015 · Harm · Low evidence

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HarmLow evidencePaper 4788

Study snapshot

PublicationInternational journal of radiation biology · 2015

Study typeanimal

Reported directionHarm

Evidence ratingLow

Abstract

PURPOSE: To investigate the effect of exposure to a 900 megahertz (MHz) electromagnetic field (EMF) on the rat testicle. MATERIALS AND METHODS: Twenty-four adult male rats were divided into control, sham and EMF groups. The EMF group rats were exposed to 900 MHz EMF (1 h/30 day), and testicles were extracted at the end of the experiment. Malondialdehyde, superoxide dismutase, catalase and glutathione levels and apoptotic index and histopathological damage scores were compared. RESULTS: Histopathologically, EMF group rats exhibited vacuoles in seminiferous tubules basal membrane and edema in the intertubular space. Seminiferous tubule diameters and germinal epithelium thickness were both smaller, and apoptotic index was higher, in the EMF group than in the other groups. Malondialdehyde, superoxide dismutase, catalase and glutathione values in the EMF group decreased significantly compared to those of the control group. CONCLUSIONS: The results show that exposure to 900 MHz EMF causes alterations in adult rat testicular morphology and biochemistry.

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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 typeanimal

Effect directionharm

PopulationAdult male rats

Sample size24

ExposureRF · 900 MHz · 1 hour/day for 30 days

Evidence strengthLowConfidence: 86% · Peer reviewed: yes

Main findings

Compared with control/sham, rats exposed to 900 MHz EMF showed histopathological changes in the testis (vacuoles in seminiferous tubules basal membrane and intertubular edema), smaller seminiferous tubule diameters and germinal epithelium thickness, and a higher apoptotic index. Biochemical measures (malondialdehyde, superoxide dismutase, catalase, and glutathione) were significantly decreased in the EMF group versus control.

Outcomes measured

Testis histopathology (vacuoles, edema, damage scores)
Seminiferous tubule diameter
Germinal epithelium thickness
Apoptotic index
Malondialdehyde (MDA) level
Superoxide dismutase (SOD) level
Catalase level
Glutathione level

Limitations

Exposure source and dosimetry (e.g., SAR) not reported in abstract
Small sample size (24 rats across three groups)
Only male rats; generalizability to humans not addressed in abstract
Short exposure duration (30 days) and endpoints limited to testicular morphology/biochemistry

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 900,
    "sar_wkg": null,
    "duration": "1 hour/day for 30 days"
  },
  "population": "Adult male rats",
  "sample_size": 24,
  "outcomes": [
    "Testis histopathology (vacuoles, edema, damage scores)",
    "Seminiferous tubule diameter",
    "Germinal epithelium thickness",
    "Apoptotic index",
    "Malondialdehyde (MDA) level",
    "Superoxide dismutase (SOD) level",
    "Catalase level",
    "Glutathione level"
  ],
  "main_findings": "Compared with control/sham, rats exposed to 900 MHz EMF showed histopathological changes in the testis (vacuoles in seminiferous tubules basal membrane and intertubular edema), smaller seminiferous tubule diameters and germinal epithelium thickness, and a higher apoptotic index. Biochemical measures (malondialdehyde, superoxide dismutase, catalase, and glutathione) were significantly decreased in the EMF group versus control.",
  "effect_direction": "harm",
  "limitations": [
    "Exposure source and dosimetry (e.g., SAR) not reported in abstract",
    "Small sample size (24 rats across three groups)",
    "Only male rats; generalizability to humans not addressed in abstract",
    "Short exposure duration (30 days) and endpoints limited to testicular morphology/biochemistry"
  ],
  "evidence_strength": "low",
  "confidence": 0.86,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "900 MHz",
    "RF-EMF",
    "rat",
    "testis",
    "histopathology",
    "apoptosis",
    "oxidative stress markers",
    "malondialdehyde",
    "superoxide dismutase",
    "catalase",
    "glutathione"
  ],
  "suggested_hubs": [
    {
      "slug": "rf-emf-reproduction",
      "weight": 0.9,
      "reason": "Animal study assessing 900 MHz RF-EMF effects on testicular morphology, apoptosis, and biochemical markers."
    }
  ]
}

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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: 10.3109/09553002.2015.1031850
PubMed: 25786704

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