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Raman spectral analysis of nasopharyngeal carcinoma cell line CNE2 after microwave radiation.

Biochemistry and cell biology = Biochimie et biologie cellulaire · 2013 · Mixed · Low evidence

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MixedLow evidencePaper 3147

Raman spectroscopy indicated that relative content of C-H deformation and amide I began to change when microwave radiation time exceeded 10 minutes. Principal components analysis found significant differences after 10 minutes of radiation, and support vector …

Study snapshot

PublicationBiochemistry and cell biology = Biochimie et biologie cellulaire · 2013
Study typein_vitro
Reported directionMixed
Evidence ratingLow

Abstract

This study aimed to study the effects of microwave radiation on the nasopharyngeal carcinoma cell line CNE2 by Raman spectroscopy. The cells were separated into a control group and radiated groups with radiation times of 2, 5, 10, and 25 min, respectively. Both principal components analysis and support vector machine were employed for statistical analysis of Raman spectra. The results show that the relative content of C-H deformation and amide I begin to change when the radiation time is over 10 min, and principal components analysis further confirms there are significant differences after 10 min of radiation. Moreover, support vector machine is simultaneously used to classify radiated samples from control samples. The classification accuracy is low until the radiation time reaches over 10 min. In conclusion, this study reveals the Raman spectral characteristics of CNE2 under different microwave radiation exposure timesand demonstrates Raman spectroscopy can be a potential method to explore cellular characterization after radiation. The final results may help in elucidating the mechanism by which microwave radiation interacts with tumor cells.

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 typein_vitro
Effect directionmixed
PopulationNasopharyngeal carcinoma cell line CNE2
Sample sizeNot supplied
Exposuremicrowave · 2, 5, 10, and 25 min
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Raman spectroscopy indicated that relative content of C-H deformation and amide I began to change when microwave radiation time exceeded 10 minutes. Principal components analysis found significant differences after 10 minutes of radiation, and support vector machine classification accuracy was low until exposure time was over 10 minutes.

Outcomes measured

  • Raman spectral changes (relative content of C-H deformation and amide I)
  • Principal components analysis differences between exposed and control samples
  • Support vector machine classification accuracy (exposed vs control)

Limitations

  • No microwave frequency reported
  • No exposure intensity/SAR reported
  • In vitro cancer cell line model; generalizability to humans not addressed
  • Sample size not reported
View raw extracted JSON
{
  "study_type": "in_vitro",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "2, 5, 10, and 25 min"
  },
  "population": "Nasopharyngeal carcinoma cell line CNE2",
  "sample_size": null,
  "outcomes": [
    "Raman spectral changes (relative content of C-H deformation and amide I)",
    "Principal components analysis differences between exposed and control samples",
    "Support vector machine classification accuracy (exposed vs control)"
  ],
  "main_findings": "Raman spectroscopy indicated that relative content of C-H deformation and amide I began to change when microwave radiation time exceeded 10 minutes. Principal components analysis found significant differences after 10 minutes of radiation, and support vector machine classification accuracy was low until exposure time was over 10 minutes.",
  "effect_direction": "mixed",
  "limitations": [
    "No microwave frequency reported",
    "No exposure intensity/SAR reported",
    "In vitro cancer cell line model; generalizability to humans not addressed",
    "Sample size not reported"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave radiation",
    "Raman spectroscopy",
    "nasopharyngeal carcinoma",
    "CNE2",
    "principal components analysis",
    "support vector machine"
  ],
  "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: 10.1139/bcb-2012-0040
PubMed: 23527634

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