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Variations in the metabolism and maturation of collagen after fluoride ingestionAbstract
This study describes the effect of fluoride ingestion (10 mg NaF/kg body weight per day) for up to 180 days, on the biosynthesis, maturation and degradation of rabbit skin collagen. Higher intake of fluoride interferes with the collagen biosynthesis resulting in a reduction in the collagen content (in terms of hydroxyproline). Fluoride administration increases the solubility of collagen by reducing the amounts of cross-link precursors, thus impairing the cross-linking and maturation of tissue collagen fibers. Collagen degradation by the collagen-bound collagenase is increased due to the accumulation of higher pools of soluble collagen.
Excerpt:
It is concluded that fluoride, ingested in excessive amounts, increases the solubility and degradation of collagen and reduces the collagen biosynthesis and cross-links. Therefore, the matured tissue collagen fibers would be abnormal due to inadequate cross-linking.