Acute low-intensity microwave exposure increases DNA single-strand breaks in rat brain cells

{
  "study_type": "animal",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": 2450,
    "sar_wkg": 1.2,
    "duration": "2 h (acute)"
  },
  "population": "Rats (brain cells assayed)",
  "sample_size": null,
  "outcomes": [
    "DNA single-strand breaks in brain cells (alkaline microgel electrophoresis)"
  ],
  "main_findings": "After 2 h pulsed 2450 MHz exposure, no significant effect was observed immediately post-exposure, but a dose rate-dependent increase in DNA single-strand breaks was observed at 4 h post-exposure at 0.6 and 1.2 W/kg whole-body SAR. After 2 h continuous-wave 2450 MHz exposure at 1.2 W/kg SAR, increases in DNA single-strand breaks were observed immediately and at 4 h post-exposure.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in provided abstract/metadata",
    "Exposure source/setup details not provided beyond frequency, modulation, and SAR",
    "Only acute exposure assessed; limited follow-up time points (immediate and 4 h)",
    "Outcome limited to DNA single-strand breaks in rat brain cells; generalizability to humans not addressed"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave",
    "2450 MHz",
    "rat",
    "brain cells",
    "DNA single-strand breaks",
    "alkaline microgel electrophoresis",
    "comet assay",
    "SAR",
    "pulsed",
    "continuous-wave"
  ],
  "suggested_hubs": [
    {
      "slug": "animal-studies",
      "weight": 0.9,
      "reason": "In vivo rat study assessing biological effects of microwave exposure"
    },
    {
      "slug": "rf-genotoxicity",
      "weight": 0.85,
      "reason": "Outcome is DNA single-strand breaks (genotoxicity marker) after RF/microwave exposure"
    }
  ]
}