Effects of mobile phone exposure on biochemical parameters of cord blood: A preliminary study

2018 · Harm · Low evidence

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HarmLow evidencePaper 2036

In the group reporting >60 min/day mobile phone use during pregnancy, cord blood AST, ALT, LDH, CK, CK-MB, CRP, PCT, TnT, uric acid, and lactate were higher than in the other groups (p<0.001), while mean platelet volume was lower (p<0.001). The authors interp…

Study snapshot

Publicationmanual · 2018

Study typecohort

Reported directionHarm

Evidence ratingLow

Abstract

Effects of mobile phone exposure on biochemical parameters of cord blood: A preliminary study Bektas H, Bektas MS, Dasdag S. Effects of mobile phone exposure on biochemical parameters of cord blood: A preliminary study. Electromagn Biol Med. 2018 Aug 29:1-8. doi: 10.1080/15368378.2018.1499033. Abstract The purpose of this study is to investigate foetal impact of radiofrequencies (RFs) emitted from mobile phones in postnatal cord blood. The study carried on 149 pregnant women divided into four groups such as nonusers of mobile phone (n: 37; control group), 2-15 min/d (n: 39; group 1), 15-60 min/d (n: 37; group 2) and participants using mobile phone for more than 60 min/d (n: 36; group 3). Cord blood of the infants was taken in all groups for biochemical analyses immediately after birth. The results of the study showed that the biggest foetal impact was observed in the third study group which was pregnant exposed RFRs (RF radiation) more than 1 h/d (1 hour per day). AST (aspartat aminotransferaz), ALT (alanine aminotransferase), LDH (lactate dehydrogenase), CK (creatine kinase), CK-MB (creatine kinase-miyocardial band), CRP (c-reactive protein), PCT (procalcitonin), TnT (troponin T), uric acid and lactate levels of third group were found higher than the other groups (p < 0.001). However, Mean platelet volume values of third group were found lower than the other groups (p < 0.001). Finally, this is the first human study which was performed on pregnant and infants because there is no previous work in this area. However, the results of this study revealed that long-term RFR exposure of pregnant may result in some biochemical changes in the infants. Therefore, our suggestion to pregnant is to avoid from RFR exposure emitted from mobile phones at least during pregnancy. ncbi.nlm.nih.gov

Machine Enhanced Logic

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 typecohort

Effect directionharm

PopulationPregnant women and their infants (cord blood collected immediately after birth)

Sample size149

ExposureRF · Self-reported mobile phone use: nonusers; 2–15 min/day; 15–60 min/day; >60 min/day during pregnancy

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Outcomes measured

Cord blood AST (aspartate aminotransferase)
Cord blood ALT (alanine aminotransferase)
Cord blood LDH (lactate dehydrogenase)
Cord blood CK (creatine kinase)
Cord blood CK-MB
Cord blood CRP (C-reactive protein)
Cord blood PCT (procalcitonin)
Cord blood TnT (troponin T)
Cord blood uric acid
Cord blood lactate
Mean platelet volume

Limitations

Described as a preliminary study
Exposure characterized by reported mobile phone use duration; no RF dose metrics (e.g., frequency, SAR) reported
Observational group comparison; confounding control not described in the abstract

View raw extracted JSON

{
  "study_type": "cohort",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "Self-reported mobile phone use: nonusers; 2–15 min/day; 15–60 min/day; >60 min/day during pregnancy"
  },
  "population": "Pregnant women and their infants (cord blood collected immediately after birth)",
  "sample_size": 149,
  "outcomes": [
    "Cord blood AST (aspartate aminotransferase)",
    "Cord blood ALT (alanine aminotransferase)",
    "Cord blood LDH (lactate dehydrogenase)",
    "Cord blood CK (creatine kinase)",
    "Cord blood CK-MB",
    "Cord blood CRP (C-reactive protein)",
    "Cord blood PCT (procalcitonin)",
    "Cord blood TnT (troponin T)",
    "Cord blood uric acid",
    "Cord blood lactate",
    "Mean platelet volume"
  ],
  "main_findings": "In the group reporting >60 min/day mobile phone use during pregnancy, cord blood AST, ALT, LDH, CK, CK-MB, CRP, PCT, TnT, uric acid, and lactate were higher than in the other groups (p<0.001), while mean platelet volume was lower (p<0.001). The authors interpret these as biochemical changes associated with longer daily mobile phone use during pregnancy.",
  "effect_direction": "harm",
  "limitations": [
    "Described as a preliminary study",
    "Exposure characterized by reported mobile phone use duration; no RF dose metrics (e.g., frequency, SAR) reported",
    "Observational group comparison; confounding control not described in the abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "radiofrequency",
    "pregnancy",
    "cord blood",
    "biochemical parameters",
    "AST",
    "ALT",
    "LDH",
    "CK",
    "CRP",
    "procalcitonin",
    "troponin T",
    "uric acid",
    "lactate",
    "mean platelet volume"
  ],
  "suggested_hubs": [
    {
      "slug": "who-icnirp",
      "weight": 0.25,
      "reason": "Human observational study of RF exposure from mobile phones with health-related biomarkers; relevant to RF health evidence discussions."
    }
  ]
}

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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: 10.1080/15368378.2018.1499033
PubMed: Not supplied

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