Effect of a 1800 MHz electromagnetic field emitted during embryogenesis on chick development and hatchability.

Anatomia, histologia, embryologia · 2018 · Mixed · Low evidence

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MixedLow evidencePaper 5554

Study snapshot

PublicationAnatomia, histologia, embryologia · 2018

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

The level of artificial electromagnetic field (EMF) has steadily increased with the development of human civilization. The developing chicken embryo has been considered a good model to study the effects of EMF on living organisms. The aim of the study was to determine the effect of a 1800 MHz electromagnetic field during embryogenesis on the frequency of chick embryo malformations, morphometric parameters of the heart and liver and concentration of corticosterone in blood plasma, lipid and glycogen content in the liver of newly hatched chicks. A 1800 MHz EMF was found to shorten the duration of embryogenesis (earlier pipping and hatching of chicks) while having no effect on the quantity and quality of chicks and on increasing the incidence of embryo malformations. Exposure of chick embryos to EMF caused decreases in relative heart weight and right ventricle wall thickness. The pipping and hatching of chicks can be accelerated by stressful impact of EMF, which is confirmed by a significant increase in plasma corticosterone concentrations and decrease in fat and glycogen in the liver of chicks exposed during embryogenesis on the electromagnetic field with a frequency of 1800 MHz.

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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 directionmixed

Populationchicken embryos / newly hatched chicks

Sample sizeNot supplied

ExposureRF · 1800 MHz · during embryogenesis

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Exposure to a 1800 MHz EMF during embryogenesis shortened embryogenesis duration (earlier pipping and hatching) and was reported to have no effect on chick quantity/quality or on increasing embryo malformations. EMF-exposed embryos showed decreased relative heart weight and decreased right ventricle wall thickness. Exposed chicks had increased plasma corticosterone and decreased liver fat and glycogen content.

Outcomes measured

Embryogenesis duration (pipping and hatching timing)
Embryo malformations frequency
Quantity and quality of chicks
Heart morphometric parameters (relative heart weight, right ventricle wall thickness)
Liver morphometric parameters
Plasma corticosterone concentration
Liver lipid content
Liver glycogen content

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 1800,
    "sar_wkg": null,
    "duration": "during embryogenesis"
  },
  "population": "chicken embryos / newly hatched chicks",
  "sample_size": null,
  "outcomes": [
    "Embryogenesis duration (pipping and hatching timing)",
    "Embryo malformations frequency",
    "Quantity and quality of chicks",
    "Heart morphometric parameters (relative heart weight, right ventricle wall thickness)",
    "Liver morphometric parameters",
    "Plasma corticosterone concentration",
    "Liver lipid content",
    "Liver glycogen content"
  ],
  "main_findings": "Exposure to a 1800 MHz EMF during embryogenesis shortened embryogenesis duration (earlier pipping and hatching) and was reported to have no effect on chick quantity/quality or on increasing embryo malformations. EMF-exposed embryos showed decreased relative heart weight and decreased right ventricle wall thickness. Exposed chicks had increased plasma corticosterone and decreased liver fat and glycogen content.",
  "effect_direction": "mixed",
  "limitations": [],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "1800 MHz",
    "electromagnetic field",
    "RF",
    "embryogenesis",
    "chick embryo",
    "hatchability",
    "malformations",
    "heart morphometry",
    "corticosterone",
    "liver lipid",
    "glycogen"
  ],
  "suggested_hubs": []
}

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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: 10.1111/ahe.12346
PubMed: 29504145

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