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Effects of lead on immune parameters in occupationally exposed workers

N Başaran1, U Undeğer

  • 1Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey. nbasaran@eti.cc.hun.edu.tr

American Journal of Industrial Medicine
|August 15, 2000
PubMed

Insights

Occupational lead exposure significantly impairs immune function, particularly T helper lymphocytes and neutrophil activity. Lead toxicity affects the immune system, necessitating workplace hazard reduction.

Area of Science:

  • Immunotoxicology
  • Occupational Health

Background:

  • Occupational exposure to lead is a significant public health concern.
  • Assessing immune competence in lead-exposed workers is crucial for understanding health risks.

Purpose of the Study:

  • To evaluate the immune system's response to occupational lead exposure.
  • To compare immune parameters between lead-exposed workers and healthy controls.

Main Methods:

  • Analysis of peripheral blood lymphocyte subsets (T, TCD4+, TCD8+, B, NK cells).
  • Measurement of serum immunoglobulin and complement protein levels.
  • Assessment of neutrophil function (chemotaxis, intracellular killing).

Main Results:

  • Lead exposure (mean blood lead 75 +/- 18 microg/dl) significantly depressed T helper lymphocytes, IgG, IgM, C3, C4 complement levels, and neutrophil chemotaxis and migration.
  • No correlation was observed between exposure duration and immune parameter alterations.

Conclusions:

  • The immune system is a target of lead toxicity.
  • Eliminating lead hazards in the workplace is essential to protect worker health.
Abstract

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