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Related Experiment Videos

Inborn errors of trace element metabolism.

D M Danks

    Clinics in Endocrinology and Metabolism
    |August 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Genetic disorders affecting trace element transport impact humans and animals, with copper and zinc deficiencies causing various health issues. Studying animal models aids in understanding these human diseases and improving nutrition knowledge.

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    Area of Science:

    • Biochemistry
    • Genetics
    • Nutritional Science

    Background:

    • Genetic disorders of trace element transport are identified in multiple species, including humans, mice, dogs, and cattle.
    • Copper transport disorders are well-documented, encompassing both deficiency (Menkes' disease, X-linked cutis laxa, mottled mutants) and accumulation (Wilson's disease, toxic milk mice).
    • Zinc deficiency is observed in conditions like acrodermatitis enteropathica and in premature infants of mothers with low milk zinc.

    Purpose of the Study:

    • To review known genetic disorders of trace element transport.
    • To highlight the utility of animal models, particularly mice, in understanding human genetic diseases related to trace elements.
    • To emphasize the contribution of identifying genetic defects to advancing trace element nutrition knowledge.

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    Main Methods:

    • Literature review of genetic disorders affecting trace element transport.
    • Comparative analysis of human and animal (mouse, dog, cattle) genetic conditions.
    • Focus on clinical manifestations and underlying molecular defects.

    Main Results:

    • Copper deficiency leads to Menkes' disease and related conditions, while copper overload causes Wilson's disease and similar phenotypes in animals.
    • Zinc deficiency is linked to acrodermatitis enteropathica and specific neonatal conditions, mirrored in mouse models.
    • Animal mutants provide valuable insights into the pathophysiology of human trace element transport disorders.

    Conclusions:

    • Understanding genetic trace element transport defects is crucial for both human health and animal welfare.
    • Animal models are indispensable tools for elucidating the mechanisms of these disorders.
    • Research into these genetic defects significantly enhances our understanding of essential trace element nutrition.