Formulation of ELF magnetic fields' effects on malondialdehyde level and myeloperoxidase activity in kidney using genetic programming.

Computer methods and programs in biomedicine · 2007 · Unclear · Low evidence

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UnclearLow evidencePaper 5077

Guinea pigs were exposed in vivo to 50 Hz magnetic fields at 1 mT, 2 mT, and 3 mT, and kidney MDA levels and MPO activity were modeled using genetic programming (GP). The GP formulations were reported to predict experimental values with satisfactory performan…

Study snapshot

PublicationComputer methods and programs in biomedicine · 2007

Study typeanimal

Reported directionUnclear

Evidence ratingLow

Abstract

In vivo exposure effects of electromagnetic fields (EMFs) on various tissues of experiment animals have been investigated. In this sense, modeling and formulation of these biological effects have been of significant importance. In this study extremely low frequency (ELF) EMFs effects on malondialdehyde (MDA) level and myeloperoxidase (MPO) activity in kidney of guinea pigs exposed to 50 Hz magnetic fields of 1 mT, 2 mT and 3 mT have been presented. It has been planned to determine whether genetic programming (GP) is appropriate to analyze and formulate these biological effects. Consequently, it has been observed that GP can be effectively used to model MDA level and MPO activity. The performances of prediction of the proposed GP formulation versus actual experimental values are found to be quite satisfactory in terms of standard deviation and correlation coefficient. It is concluded that the GP application serves to form a database for the researchers in this field, without exposing tissues to EMF and without using too many guinea pigs.

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 typeanimal

Effect directionunclear

PopulationGuinea pigs (kidney tissue)

Sample sizeNot supplied

ExposureELF · 5e-05 MHz

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Kidney malondialdehyde (MDA) level
Kidney myeloperoxidase (MPO) activity
Model prediction performance (standard deviation, correlation coefficient)

Limitations

Exposure duration not reported in abstract
Sample size not reported in abstract
Abstract emphasizes modeling performance rather than reporting direction/magnitude of biological changes in MDA or MPO
No details provided on experimental design (e.g., controls, randomization, blinding)

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "ELF",
    "source": null,
    "frequency_mhz": 5e-05,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Guinea pigs (kidney tissue)",
  "sample_size": null,
  "outcomes": [
    "Kidney malondialdehyde (MDA) level",
    "Kidney myeloperoxidase (MPO) activity",
    "Model prediction performance (standard deviation, correlation coefficient)"
  ],
  "main_findings": "Guinea pigs were exposed in vivo to 50 Hz magnetic fields at 1 mT, 2 mT, and 3 mT, and kidney MDA levels and MPO activity were modeled using genetic programming (GP). The GP formulations were reported to predict experimental values with satisfactory performance based on standard deviation and correlation coefficient.",
  "effect_direction": "unclear",
  "limitations": [
    "Exposure duration not reported in abstract",
    "Sample size not reported in abstract",
    "Abstract emphasizes modeling performance rather than reporting direction/magnitude of biological changes in MDA or MPO",
    "No details provided on experimental design (e.g., controls, randomization, blinding)"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "ELF",
    "50 Hz",
    "magnetic field",
    "guinea pig",
    "kidney",
    "malondialdehyde",
    "MDA",
    "myeloperoxidase",
    "MPO",
    "genetic programming",
    "modeling"
  ],
  "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: 10.1016/j.cmpb.2006.12.006
PubMed: 17240475

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