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Folate status and the immune system.

A Dhur1, P Galan, S Hercberg

  • 1Centre de Recherche sur les Anémies Nutritionnelles, Institut Scientifique et Technique de l'Alimentation, CNAM, Paris, France.

Progress in Food & Nutrition Science
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

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Folic acid (folate) deficiency impairs immune cell function, affecting both cell-mediated and humoral immunity. This can reduce the body's resistance to infections in humans and animals.

Area of Science:

  • Immunology
  • Nutrition Science
  • Cell Biology

Background:

  • Folic acid is essential for DNA and protein synthesis, critical for cell proliferation.
  • Cell proliferation is fundamental to immune system function.
  • Folate deficiency can impact various biological mechanisms, including immunity.

Purpose of the Study:

  • To review the impact of folic acid deficiency on immune system functions.
  • To highlight the effects on cell-mediated and humoral immunity.
  • To discuss the implications for infection resistance.

Main Methods:

  • Literature review of studies on folate deficiency and immune responses.
  • Analysis of findings in both human and animal models.
  • Examination of effects on T lymphocytes, antibody production, and phagocytic cells.

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Main Results:

  • Folate deficiency decreases T lymphocyte blastogenic response and alters thymus structure.
  • Humoral immunity, including antibody response, is diminished in folate-deficient animals.
  • Effects on polymorphonuclear cell phagocytic and bactericidal capacities are controversial but potentially impaired.

Conclusions:

  • Folic acid deficiency significantly compromises immune system functions.
  • Impaired immunity due to folate deficiency can lead to increased susceptibility to infections.
  • Maintaining adequate folate levels is crucial for robust immune defense.