The Nonlinear Tissue-Binding Character of Fluoride Kinetics in Normal and Anephric Subjects

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Abstract
A study has been made of the fluoride kinetics in man, with a series of 5 healthy subjects and 4 patients with renal insufficiency. The fluoride metabolism was found to conform to nonlinear tissue-binding kinetics. Reanalysis of findings on the rabbit reported in the literature yielded equivalent results. The tissue-binding constants elicited -probably associated with the fluoride metabolism of bone – presented no differences between healthy subjects and uremics. Uremics had a clearly lower fractional fluoride elimination rate (K) compared with the healthy controls. A significant correlation of creatinine clearance on the K value was noted.