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Related Experiment Videos

[Effect of zinc on immune function in normal mice].

X H Zhang1, L Wang, Z Z Dong

  • 1Biology Department, Shandong University, Jinan.

Sheng Li Xue Bao : [Acta Physiologica Sinica]
|August 1, 1991
PubMed
Summary

Zinc supplementation in mice boosted T lymphocyte counts and immune responses, but potentially harmed thymus lymphocytes. Further research is needed to balance these effects for optimal immune health.

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Area of Science:

  • Immunology
  • Nutritional Science
  • Cell Biology

Context:

  • The thymus is crucial for T cell maturation and immune system function.
  • Zinc is an essential mineral with known roles in immunity.
  • Understanding zinc's specific effects on immune cells and organs is important.

Purpose:

  • To investigate the impact of a specific zinc dosage on the immune function and thymus structure in mice.
  • To determine how zinc affects T lymphocytes, macrophages, and humoral immunity.
  • To assess potential adverse effects of zinc on thymus lymphocyte morphology.

Summary:

  • Administering 0.2mg/d of zinc to mice for 15 days significantly increased mature T lymphocytes, enhanced lymphocyte transformation, and boosted delayed-type hypersensitivity (DTH) responses.
  • Conversely, zinc suppressed peritoneal macrophage phagocytosis, while IgM production and thymus weight remained unaffected.
  • Zinc administration led to irregular lymphocyte nuclei shapes in the thymus cortex, suggesting potential latent injury.

Impact:

  • A specific dose of zinc can enhance certain aspects of cell-mediated immunity.
  • Zinc may have a dual effect, promoting some immune functions while potentially causing subtle damage to thymus lymphocytes.
  • These findings highlight the need for careful consideration of zinc dosage in modulating immune responses.

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