Changes in hydroxyproline levels in electric field tissue interaction.

{
  "study_type": "animal",
  "exposure": {
    "band": null,
    "source": "external electric field",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "9 hrs/day for 3 days"
  },
  "population": "Guinea pigs",
  "sample_size": null,
  "outcomes": [
    "Hydroxyproline levels in liver",
    "Hydroxyproline levels in lung",
    "Hydroxyproline levels in kidney",
    "Collagen synthesis (suggested)"
  ],
  "main_findings": "Guinea pigs exposed to an external electric field (1.9 kV/m) for 9 hours/day for 3 days showed increased hydroxyproline levels in liver, lung, and kidney. The authors suggest this indicates increased collagen synthesis.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in abstract",
    "No frequency or other exposure characterization beyond field strength provided",
    "Outcome interpretation (collagen synthesis) is inferred from hydroxyproline changes"
  ],
  "evidence_strength": "very_low",
  "confidence": 0.72,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electric field",
    "guinea pig",
    "hydroxyproline",
    "collagen",
    "liver",
    "lung",
    "kidney"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.25,
      "reason": "Study involves exposure to an external electric field; could be relevant to electric-field exposure contexts, though no occupational setting is specified."
    }
  ]
}