Assessment of electromagnetic fields, vibration and sound exposure effects from multiple transceiver mobile phones on oxidative stress levels in serum, brain and heart tissue

2020 · Harm · Low evidence

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HarmLow evidencePaper 1558

Study snapshot

Publicationmanual · 2020

Study typeanimal

Reported directionHarm

Evidence ratingLow

Abstract

Assessment of electromagnetic fields, vibration and sound exposure effects from multiple transceiver mobile phones on oxidative stress levels in serum, brain and heart tissue Usman JD, Isyaku UM, Rabiu AM, Fasanmade AA. Assessment of electromagnetic fields, vibration and sound exposure effects from multiple transceiver mobile phones on oxidative stress levels in serum, brain and heart tissue. Scientific African. Vol 7. March 2020. doi.org. Abstract The present study evaluates oxidative stress markers in serum, brain and heart of albino Wistar rats after exposure to multiple transceiver mobile phone electromagnetic radiation, vibration and sound. Forty five (45) male albino Wistar rats weighing 140-180 g were randomly selected into nine groups (n = 5) viz; A serving as the control without mobile phone; groups B1, B2...E1, E2 were continuously exposed to electromagnetic field from double (1) and triple (2) transceiver mobile phone kept in various modalities with at least 10 min call per day within 9:00-21:00 h. Groups B1 and B2 were in silence mode, C1 and C2 in vibration, D1 and D2 in ring tone (sound), while E1 and E2 were in sound and vibration mode. After six weeks of exposure, the animals were sacrificed; serum, brain and heart were taken for oxidative stress assessment. Results showed that electromagnetic field radiation, vibration and sound from double and triple transceiver mobile phone cause decrease in the levels of glutathione peroxidase, superoxide dismutase, and malondialdehyde in the serum, heart and the brain. Catalase was observed to decrease only in the brain. Nitric oxide activities increased in the brain and heart of the treatment groups exposed to both phone types. Exposure to double or triple transceiver mobile phone radiation, vibration and sound causes oxidative stress to serum, brain and the heart. Open access paper: sciencedirect.com

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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

PopulationMale albino Wistar rats (140–180 g)

Sample size45

Exposure6 weeks; at least 10 min call per day within 9:00–21:00 h; continuous exposure in various modalities

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

After 6 weeks, groups exposed to electromagnetic field radiation from double or triple transceiver mobile phones (with silence/vibration/ringtone/sound+vibration modes) showed decreased glutathione peroxidase, superoxide dismutase, and malondialdehyde in serum, heart, and brain; catalase decreased only in brain. Nitric oxide activity increased in brain and heart in treatment groups. The authors conclude these exposures cause oxidative stress in serum, brain, and heart.

Outcomes measured

Glutathione peroxidase (GPx) levels (serum, brain, heart)
Superoxide dismutase (SOD) levels (serum, brain, heart)
Malondialdehyde (MDA) levels (serum, brain, heart)
Catalase levels (brain)
Nitric oxide activity (brain, heart)
Oxidative stress (overall conclusion)

Limitations

Frequency and SAR/exposure intensity not reported in abstract.
Exposure description combines electromagnetic fields with vibration and sound, making it difficult to isolate EMF-specific effects.
Small group size (n=5 per group).

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": null,
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "6 weeks; at least 10 min call per day within 9:00–21:00 h; continuous exposure in various modalities"
  },
  "population": "Male albino Wistar rats (140–180 g)",
  "sample_size": 45,
  "outcomes": [
    "Glutathione peroxidase (GPx) levels (serum, brain, heart)",
    "Superoxide dismutase (SOD) levels (serum, brain, heart)",
    "Malondialdehyde (MDA) levels (serum, brain, heart)",
    "Catalase levels (brain)",
    "Nitric oxide activity (brain, heart)",
    "Oxidative stress (overall conclusion)"
  ],
  "main_findings": "After 6 weeks, groups exposed to electromagnetic field radiation from double or triple transceiver mobile phones (with silence/vibration/ringtone/sound+vibration modes) showed decreased glutathione peroxidase, superoxide dismutase, and malondialdehyde in serum, heart, and brain; catalase decreased only in brain. Nitric oxide activity increased in brain and heart in treatment groups. The authors conclude these exposures cause oxidative stress in serum, brain, and heart.",
  "effect_direction": "harm",
  "limitations": [
    "Frequency and SAR/exposure intensity not reported in abstract.",
    "Exposure description combines electromagnetic fields with vibration and sound, making it difficult to isolate EMF-specific effects.",
    "Small group size (n=5 per group)."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "electromagnetic field",
    "vibration",
    "sound",
    "oxidative stress",
    "Wistar rats",
    "serum",
    "brain",
    "heart",
    "glutathione peroxidase",
    "superoxide dismutase",
    "malondialdehyde",
    "catalase",
    "nitric oxide"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones-rf",
      "weight": 0.9,
      "reason": "Animal study assessing biological effects from exposure to mobile phone electromagnetic radiation."
    }
  ]
}

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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: 10.1016/j.sciaf.2020.e00271
PubMed: Not supplied

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