Effect of electromagnetic field on cyclic adenosine monophosphate (cAMP) in a human mu-opioid receptor cell model.

Electromagnetic biology and medicine · 2016 · Mixed · Very low evidence

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MixedVery low evidencePaper 4765

In CHO cells transfected with human mu-opioid receptors with stimulated cAMP, exposure to 5 Hz EMF produced 23% greater inhibition of cAMP than morphine treatment. Identical experiments using 13 Hz EMF produced results similar to controls.

Study snapshot

PublicationElectromagnetic biology and medicine · 2016

Study typein_vitro

Reported directionMixed

Evidence ratingVery low

Abstract

During the cell communication process, endogenous and exogenous signaling affect normal as well as pathological developmental conditions. Exogenous influences such as extra-low-frequency electromagnetic field (EMF) have been shown to effect pain and inflammation by modulating G-protein receptors, down-regulating cyclooxygenase-2 activity, and affecting the calcium/calmodulin/nitric oxide pathway. Investigators have reported changes in opioid receptors and second messengers, such as cyclic adenosine monophosphate (cAMP), in opiate tolerance and dependence by showing how repeated exposure to morphine decreases adenylate cyclase activity causing cAMP to return to control levels in the tolerant state, and increase above control levels during withdrawal. Resonance responses to biological systems using exogenous EMF signals suggest that frequency response characteristics of the target can determine the EMF biological response. In our past research we found significant down regulation of inflammatory markers tumor necrosis factor alpha (TNF-α) and nuclear factor kappa B (NFκB) using 5 Hz EMF frequency. In this study cAMP was stimulated in Chinese Hamster Ovary (CHO) cells transfected with human mu-opioid receptors, then exposed to 5 Hz EMF, and outcomes were compared with morphine treatment. Results showed a 23% greater inhibition of cAMP-treating cells with EMF than with morphine. In order to test our results for frequency specific effects, we ran identical experiments using 13 Hz EMF, which produced results similar to controls. This study suggests the use of EMF as a complementary or alternative treatment to morphine that could both reduce pain and enhance patient quality of life without the side-effects of opiates.

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

PopulationNot supplied

Sample sizeNot supplied

ExposureELF

Evidence strengthVery lowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

cAMP (cyclic adenosine monophosphate) inhibition in CHO cells transfected with human mu-opioid receptors

Limitations

In vitro cell model (CHO cells) rather than human/animal outcomes
Exposure parameters beyond frequency (e.g., field strength, duration) not reported in the abstract
Sample size and statistical details not provided in the abstract

View raw extracted JSON

{
  "study_type": "in_vitro",
  "exposure": {
    "band": "ELF",
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "cAMP (cyclic adenosine monophosphate) inhibition in CHO cells transfected with human mu-opioid receptors"
  ],
  "main_findings": "In CHO cells transfected with human mu-opioid receptors with stimulated cAMP, exposure to 5 Hz EMF produced 23% greater inhibition of cAMP than morphine treatment. Identical experiments using 13 Hz EMF produced results similar to controls.",
  "effect_direction": "mixed",
  "limitations": [
    "In vitro cell model (CHO cells) rather than human/animal outcomes",
    "Exposure parameters beyond frequency (e.g., field strength, duration) not reported in the abstract",
    "Sample size and statistical details not provided in the abstract"
  ],
  "evidence_strength": "very_low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "extra-low-frequency",
    "ELF-EMF",
    "5 Hz",
    "13 Hz",
    "cAMP",
    "mu-opioid receptor",
    "CHO cells",
    "morphine",
    "frequency-specific effects"
  ],
  "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: 10.3109/15368378.2015.1043556
PubMed: 26151161

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