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Related Experiment Videos

Zinc: an overview

A S Prasad1

  • 1Department of Internal Medicine, Wayne State University School of Medicine, Harper Hospital, Detroit, Michigan, USA.

Nutrition (Burbank, Los Angeles County, Calif.)
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

Zinc deficiency is a global health issue, impacting growth, immunity, and wound healing. Early diagnosis is crucial, with blood cell assays offering better insights than plasma tests for marginal deficiency.

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Area of Science:

  • Human Nutrition
  • Biochemistry
  • Immunology

Background:

  • Zinc deficiency is a widespread global health concern, particularly in populations relying on cereal-based diets.
  • It manifests in various clinical conditions, including growth failure, impaired gonadal development, skin issues, and compromised immune function.
  • Severe deficiency, as seen in acrodermatitis enteropathica, can be fatal without zinc supplementation.

Purpose of the Study:

  • To highlight the global prevalence and diverse health impacts of zinc deficiency.
  • To discuss the diagnostic challenges of marginal zinc deficiency and introduce improved diagnostic methods.
  • To elucidate the critical roles of zinc in enzymatic activities, DNA/protein synthesis, and immune cell function.

Main Methods:

  • Review of existing literature on zinc deficiency and its clinical manifestations.

Related Experiment Videos

  • Discussion of diagnostic criteria, comparing plasma zinc levels with assays in granulocytes and lymphocytes.
  • Exploration of zinc's biochemical functions, including its role in enzyme activity and gene expression.

    • Main Results:

    • Zinc is essential for approximately 300 enzymes, DNA synthesis, cell division, and protein synthesis.
    • Zinc-finger proteins, crucial for gene expression, are implicated in zinc's function.
    • Marginal zinc deficiency diagnosis is improved by assessing zinc levels in granulocytes and lymphocytes over plasma levels.

    Conclusions:

    • Zinc deficiency has profound, multifaceted effects on human health, impacting growth, development, and immunity.
    • Accurate diagnosis of marginal zinc deficiency is critical and can be enhanced by specific cellular assays.
    • Maintaining adequate zinc levels is vital for numerous physiological processes, including immune function and gene expression.