Stereological Study on the Effect of Carnosine on Purkinje Cells in the Cerebellum of Rats Exposed to 900 MHz Electromagnetic Field

Abstract

Stereological Study on the Effect of Carnosine on Purkinje Cells in the Cerebellum of Rats Exposed to 900 MHz Electromagnetic Field Arslan A, Acer N, Kesici H, Sonmez MF, Ertekin T, Gultekin M, Dagdelen U, Saracoglu OG. Stereological Study on the Effect of Carnosine on Purkinje Cells in the Cerebellum of Rats Exposed to 900 MHz Electromagnetic Field. Turk Neurosurg. 2021 Aug 28. doi: 10.5137/1019-5149.JTN.35313-21.2. Abstract Aim: Electromagnetic fields have been known to reduce the number of Purkinje neurons in the cerebellum, whereas carnosine has been known to protect them. This study aimed to evaluate the impact of carnosine on Purkinje neurons in rats exposed to a 900 Mhz electromagnetic field. Material and methods: This study evaluated 24 rats divided into the following three different groups: a control group, a group exposed to the electromagnetic field, and a group that was injected with carnosine while being exposed to the electromagnetic field. The electromagnetic field group was exposed to a 900 Mhz electromagnetic field for an hour daily over 28 days. Thereafter, stereological analysis was performed histologically on cerebellar sections, and the number of Purkinje cells were counted. Results: The electromagnetic field group had remarkably fewer Purkinje cell compared to control. The electromagnetic field group plus 20 mg of carnosine had significantly more total Purkinje cells compared to the electromagnetic field group (p 0.05). Conclusion: The present study showed that electromagnetic field exposure decreases the number of Purkinje cell, whereas carnosine protected the cerebellum from neural damage induced by electromagnetic field exposure. Open access paper: turkishneurosurgery.org.tr

AI evidence extraction

Main findings

Rats exposed to a 900 MHz electromagnetic field for 1 hour/day over 28 days had fewer Purkinje cells than controls. Rats exposed to the electromagnetic field and injected with 20 mg carnosine had more total Purkinje cells than the electromagnetic-field-only group (p<0.05).

Outcomes measured

• Purkinje cell number (stereological count in cerebellum)

Limitations

• No SAR or field strength/dosimetry details reported in the abstract
• No details on randomization/blinding reported in the abstract
• Only one exposure frequency and one exposure schedule described
• Outcome limited to histological Purkinje cell counts; functional/behavioral outcomes not described in the abstract

{
    "study_type": "animal",
    "exposure": {
        "band": "RF",
        "source": null,
        "frequency_mhz": 900,
        "sar_wkg": null,
        "duration": "1 hour daily for 28 days"
    },
    "population": "Rats",
    "sample_size": 24,
    "outcomes": [
        "Purkinje cell number (stereological count in cerebellum)"
    ],
    "main_findings": "Rats exposed to a 900 MHz electromagnetic field for 1 hour/day over 28 days had fewer Purkinje cells than controls. Rats exposed to the electromagnetic field and injected with 20 mg carnosine had more total Purkinje cells than the electromagnetic-field-only group (p<0.05).",
    "effect_direction": "harm",
    "limitations": [
        "No SAR or field strength/dosimetry details reported in the abstract",
        "No details on randomization/blinding reported in the abstract",
        "Only one exposure frequency and one exposure schedule described",
        "Outcome limited to histological Purkinje cell counts; functional/behavioral outcomes not described in the abstract"
    ],
    "evidence_strength": "low",
    "confidence": 0.7800000000000000266453525910037569701671600341796875,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "900 MHz",
        "electromagnetic field",
        "RF",
        "carnosine",
        "Purkinje cells",
        "cerebellum",
        "stereology",
        "rat"
    ],
    "suggested_hubs": []
}

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