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Related Experiment Videos

Urinary fluoride reference values determined by a fluoride ion selective electrode.

Kan Usuda1, Koichi Kono, Yukari Shimbo

  • 1Division of Preventive and Social Medicine, Department of Hygiene and Public Health, Osaka Medical College, 2-7 Daigakumachi, Takatsuki City, Osaka 569-8686, Japan. usudakan@yahoo.co.jp

Biological Trace Element Research
|October 5, 2007
PubMed
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Urinary fluoride levels in healthy adults follow a lognormal distribution. This study establishes reference values for urinary fluoride, crucial for monitoring occupational and environmental exposure.

Area of Science:

  • Environmental Health
  • Toxicology
  • Biomonitoring

Background:

  • Fluoride's short biological half-life necessitates accurate exposure assessment.
  • Urinary excretion is the primary route for fluoride elimination.
  • Measuring urinary fluoride concentration is key for human exposure evaluation.

Purpose of the Study:

  • To determine reference values for urinary fluoride concentrations in healthy Japanese adults.
  • To analyze the distribution pattern of urinary fluoride.
  • To provide guidelines for biological monitoring of fluoride exposure.

Main Methods:

  • Collected urine samples from 167 healthy Japanese adults.
  • Measured urinary fluoride concentrations using a fluoride ion selective electrode.

Related Experiment Videos

  • Corrected results for specific gravity and analyzed data distribution (log-transformation).

    • Main Results:

    • Urinary fluoride concentrations exhibited a lognormal distribution.
    • Established geometric mean (GM) of 613.8 microg/l and 95% CI of 241.0-1633.1 microg/l.
    • Skewness and kurtosis values indicated a lognormal pattern after transformation.

    Conclusions:

    • Urinary fluoride levels in healthy adults are best described by a lognormal distribution.
    • The established reference values are valuable for biological monitoring.
    • This research aids in assessing occupational and environmental fluoride exposure risks.