The Impact of Mobile Phone Electromagnetic Waves on the Neurons and Blood Brain Barrier Integrity in the Chick Embryo

Biomed Pharmacol J · 2024 · Harm · Low evidence

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HarmLow evidencePaper 2490

Compared with controls, embryos exposed to mobile phone electromagnetic waves showed fewer and smaller cerebral neurons with unclear nuclear margins, shrinkage and signs of apoptosis, and a denser extracellular matrix. Exposed embryos also showed reduced Purk…

Study snapshot

PublicationBiomed Pharmacol J · 2024

Study typeanimal

Reported directionHarm

Evidence ratingLow

Abstract

Category: Neuroscience Tags: electromagnetic fields, mobile phones, chick embryo, blood-brain barrier, neuronal damage, apoptosis, wireless technology URL: biomedpharmajournal.org Overview With the rapid increase of Wi-Fi, Bluetooth, and other wireless technologies, the electromagnetic environment in everyday life has significantly changed. Mobile phones, a source of non-ionizing low-frequency electromagnetic waves (EW), are omnipresent. This study investigates the effects of mobile phone EW on the developing brain of chick embryos. Methods - Fertilized eggs were incubated under two conditions: one group exposed to electromagnetic waves from a mobile phone and one control group without exposure. - A mobile phone was called from outside the incubator on a set schedule for the exposed group (20 eggs each group). - Embryos were sacrificed on days 10 and 15 for electron microscopy analysis of the cerebral cortex and cerebellum. Findings - Control Group: Cerebral neurons exhibited healthy and normal features, including a large, centrally placed nucleus, visible oligodendrocytes, and a less dense extracellular matrix. The blood-brain barrier remained intact. - Exposed Group: Cerebral neurons were fewer in number, smaller, showed unclear nuclear margins, shrinkage, signs of apoptosis (cell death), and a dense extracellular matrix. In the cerebellum, a reduced number of Purkinje neurons and significant mitochondrial swelling were observed. - The blood-brain barrier was compromised in the exposed embryos, clearly linking EMF exposure to biological effects on brain integrity and development. Conclusion The study demonstrates that electromagnetic waves emitted by mobile phones adversely affect the normal brain development and blood-brain barrier integrity in chick embryos, a clear health risk associated with electromagnetic field exposure.

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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

PopulationChick embryos (fertilized eggs)

Sample size40

ExposureMobile phone called from outside the incubator on a set schedule (details not specified); embryos assessed on days 10 and 15

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Outcomes measured

Neuronal morphology/ultrastructure in cerebral cortex
Neuronal morphology/ultrastructure in cerebellum (Purkinje neurons, mitochondria)
Apoptosis-related neuronal changes
Blood-brain barrier integrity

Limitations

Frequency/band and SAR or field strength not reported in the abstract
Exposure schedule details not specified in the abstract
Small sample size (20 eggs per group)
Outcomes appear based on electron microscopy morphology; functional/behavioral outcomes not described

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": null,
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "Mobile phone called from outside the incubator on a set schedule (details not specified); embryos assessed on days 10 and 15"
  },
  "population": "Chick embryos (fertilized eggs)",
  "sample_size": 40,
  "outcomes": [
    "Neuronal morphology/ultrastructure in cerebral cortex",
    "Neuronal morphology/ultrastructure in cerebellum (Purkinje neurons, mitochondria)",
    "Apoptosis-related neuronal changes",
    "Blood-brain barrier integrity"
  ],
  "main_findings": "Compared with controls, embryos exposed to mobile phone electromagnetic waves showed fewer and smaller cerebral neurons with unclear nuclear margins, shrinkage and signs of apoptosis, and a denser extracellular matrix. Exposed embryos also showed reduced Purkinje neuron numbers with mitochondrial swelling, and the blood-brain barrier was reported as compromised.",
  "effect_direction": "harm",
  "limitations": [
    "Frequency/band and SAR or field strength not reported in the abstract",
    "Exposure schedule details not specified in the abstract",
    "Small sample size (20 eggs per group)",
    "Outcomes appear based on electron microscopy morphology; functional/behavioral outcomes not described"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic fields",
    "mobile phones",
    "chick embryo",
    "blood-brain barrier",
    "neuronal damage",
    "apoptosis",
    "electron microscopy",
    "cerebral cortex",
    "cerebellum",
    "Purkinje neurons"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones",
      "weight": 0.9,
      "reason": "Exposure source is a mobile phone; study examines biological effects of mobile phone electromagnetic waves."
    }
  ]
}

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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: Not supplied
PubMed: Not supplied

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