Effect of an Extremely Low-Frequency Electromagnetic Field on the Concentration of Salivary Immunoglobulin A

{
  "publication_year": 2022,
  "study_type": "other",
  "exposure": {
    "band": "ELF",
    "source": "therapeutic device (parotid gland region)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Patients aged 14–16 receiving ELF MF on the parotid gland region; matched controls",
  "sample_size": 49,
  "outcomes": [
    "Salivary secretory immunoglobulin A (IgA) concentration"
  ],
  "main_findings": "In 24 adolescents receiving ELF MF applied to the parotid gland region, salivary secretory IgA concentration increased statistically significantly after exposure. In 25 matched controls, no statistically significant change was reported.",
  "effect_direction": "benefit",
  "limitations": [
    "Exposure parameters (e.g., frequency, intensity, duration) not provided in the abstract",
    "Study design details (randomization, blinding) not described in the abstract",
    "Small sample size",
    "Short-term biomarker outcome only; clinical outcomes not reported"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "stance": "neutral",
  "stance_confidence": 0.6,
  "summary": "This study evaluated whether extremely low-frequency magnetic field (ELF MF) therapy applied to the parotid gland region affects salivary secretory IgA in adolescents. The study group (n=24, ages 14–16) showed a statistically significant increase in salivary IgA after ELF MF, while matched controls (n=25) did not show a significant change. The authors conclude ELF MF increases immune activity of the parotid gland based on this biomarker change.",
  "key_points": [
    "The study assessed salivary secretory IgA as an immune-related biomarker after ELF MF exposure to the parotid gland region.",
    "Participants were adolescents aged 14–16, with 24 in the exposed group and 25 matched controls.",
    "IgA concentration was measured using radial immunodiffusion.",
    "A statistically significant post-exposure increase in salivary IgA was reported in the ELF MF group.",
    "No statistically significant IgA change was reported in the control group.",
    "The abstract does not report key exposure parameters such as frequency, field strength, or treatment duration."
  ],
  "categories": [
    "ELF",
    "Therapeutic EMF",
    "Biomarkers",
    "Immune System"
  ],
  "tags": [
    "Extremely Low Frequency",
    "Magnetic Field Therapy",
    "Parotid Gland",
    "Saliva",
    "Secretory IgA",
    "Immunoglobulin A",
    "Adolescents",
    "Radial Immunodiffusion"
  ],
  "keywords": [
    "ELF MF",
    "extremely low-frequency electromagnetic field",
    "parotid gland",
    "salivary immunoglobulin A",
    "secretory IgA",
    "radial immunodiffusion"
  ],
  "suggested_hubs": [],
  "social": {
    "tweet": "Study in 14–16-year-olds reports salivary secretory IgA increased after extremely low-frequency magnetic field (ELF MF) therapy applied to the parotid gland region; matched controls showed no significant change.",
    "facebook": "An adolescent study (n=49) measured salivary secretory IgA before/after ELF magnetic field therapy to the parotid gland region and reported a significant increase in IgA in the treated group, with no significant change in matched controls.",
    "linkedin": "In a small adolescent study (n=49), ELF magnetic field therapy applied to the parotid gland region was associated with a statistically significant increase in salivary secretory IgA, while matched controls showed no significant change; exposure parameters were not detailed in the abstract."
  }
}