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Biochemical and morphological changes associated with long bone abnormalities in silicon deficiency

E M Carlisle

    The Journal of Nutrition
    |May 1, 1980
    PubMed
    Summary

    Silicon deficiency in chicks causes long bone abnormalities. This study shows silicon is crucial for normal bone growth, impacting cartilage and collagen development.

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    Area of Science:

    • Biochemistry
    • Orthopedics
    • Developmental Biology

    Background:

    • Silicon is an essential trace element for bone health.
    • Previous studies indicated silicon's role in bone development using amino acid-based diets.
    • The specific impact of silicon deficiency on long bone development under varied dietary conditions requires further investigation.

    Purpose of the Study:

    • To investigate long bone abnormalities in silicon deficiency under a casein-based diet.
    • To extensively examine the effects of silicon deficiency on chick long bone development.
    • To elucidate silicon's role in endochondral bone growth.

    Main Methods:

    • Long bone abnormalities were induced in silicon-deficient chicks fed a casein-based diet.
    • Articular cartilage and water content were measured in cockerel tibias.
    • Biochemical analyses assessed bone mineral, non-collagenous protein, hexosamine, and collagen levels.
    • Histological examination of epiphyseal cartilage was performed.

    Main Results:

    • Silicon-deficient chicks exhibited significant long bone abnormalities compared to supplemented controls.
    • Tibia from silicon-supplemented chicks showed greater articular cartilage, water content, hexosamine, and collagen percentages.
    • Silicon deficiency led to marked lesions and profound changes in epiphyseal cartilage, particularly the proliferative zone.

    Conclusions:

    • Silicon is essential for normal endochondral bone growth.
    • Silicon plays a critical role in the metabolic processes of bone development.
    • Dietary silicon significantly influences cartilage composition and bone matrix formation.

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