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Long-term exposure to continuous 900 MHz EMF disrupts cerebellar morphology in young adult male rats

2017 · Harm · Low evidence

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HarmLow evidencePaper 2267

Rats exposed to continuous 900 MHz EMF for 1 h/day from postnatal days 21–46 had significantly fewer Purkinje cells than unexposed and sham-exposed controls. Histopathology showed altered Purkinje cell arrangement and pathological changes including intense st…

Study snapshot

Publicationmanual · 2017
Study typeanimal
Reported directionHarm
Evidence ratingLow

Abstract

Long-term exposure to continuous 900 MHz EMF disrupts cerebellar morphology in young adult male rats Aslan A, İkinci A, Baş O, Sönmez OF, Kaya H, Odacı E. Long-term exposure to a continuous 900 MHz electromagnetic field disrupts cerebellar morphology in young adult male rats. Biotech Histochem. 2017 May 16:1-7. doi: 10.1080/10520295.2017.1310295. Abstract The pathological effects of exposure to an electromagnetic field (EMF) during childhood and adolescence may be greater than those from exposure during adulthood. We investigated possible pathological changes in the cerebellum of adolescent rats exposed to 900 MHz EMF daily for 25 days. We used three groups of six 21-day- old male rats as follows: unexposed control group (Non-EG), sham-exposed group (Sham-EG) and an EMF- exposed group (EMF-EG). EMF-EG rats were exposed to EMF in an EMF cage for 1 h daily from postnatal days 21 through 46. Sham-EG rats were placed in the EMF cage for 1 h daily, but were not subjected to EMF. No procedures were performed on the Non-EG rats. The cerebellums of all animals were removed on postnatal day 47, sectioned and stained with cresyl violet for histopathological and stereological analyses. We found significantly fewer Purkinje cells in the EMF-EG group than in the Non-EG and Sham-EG groups. Histopathological evaluation revealed alteration of normal Purkinje cell arrangement and pathological changes including intense staining of neuron cytoplasm in the EMF-EG group. We found that exposure to continuous 900 MHz EMF for 1 h/day during adolescence can disrupt cerebellar morphology and reduce the number of Purkinje cells in adolescent rats. ncbi.nlm.nih.gov

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
PopulationAdolescent (21-day-old) male rats
Sample size18
ExposureRF · 900 MHz · 1 h/day for 25 days (postnatal days 21–46)
Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Rats exposed to continuous 900 MHz EMF for 1 h/day from postnatal days 21–46 had significantly fewer Purkinje cells than unexposed and sham-exposed controls. Histopathology showed altered Purkinje cell arrangement and pathological changes including intense staining of neuron cytoplasm in the exposed group.

Outcomes measured

  • Purkinje cell number
  • Cerebellar morphology
  • Histopathological changes (Purkinje cell arrangement, neuron cytoplasm staining)

Limitations

  • SAR/dosimetry not reported in abstract
  • Small group sizes (n=6 per group)
  • Animal study; generalizability to humans not addressed in abstract
View raw extracted JSON
{
  "study_type": "animal",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 900,
    "sar_wkg": null,
    "duration": "1 h/day for 25 days (postnatal days 21–46)"
  },
  "population": "Adolescent (21-day-old) male rats",
  "sample_size": 18,
  "outcomes": [
    "Purkinje cell number",
    "Cerebellar morphology",
    "Histopathological changes (Purkinje cell arrangement, neuron cytoplasm staining)"
  ],
  "main_findings": "Rats exposed to continuous 900 MHz EMF for 1 h/day from postnatal days 21–46 had significantly fewer Purkinje cells than unexposed and sham-exposed controls. Histopathology showed altered Purkinje cell arrangement and pathological changes including intense staining of neuron cytoplasm in the exposed group.",
  "effect_direction": "harm",
  "limitations": [
    "SAR/dosimetry not reported in abstract",
    "Small group sizes (n=6 per group)",
    "Animal study; generalizability to humans not addressed in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "900 MHz",
    "RF EMF",
    "adolescent rats",
    "cerebellum",
    "Purkinje cells",
    "histopathology",
    "stereology",
    "continuous exposure"
  ],
  "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: 10.1080/10520295.2017.1310295
PubMed: Not supplied

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