Abstract
Transplacental passage of fluorides was studied in 25 randomly selected neonates. Blood samples collected simultaneously from the mother and the umbilical cord showed that average fluoride concentration in the cord blood was 60% of that in mother’s blood. When concentration in the mother’s blood exceeded 0.4 ppm, the placenta acted as a selective barrier.
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Plasma and water fluoride levels and hyperuricemia among US adolescents.
Background: Evidence obtained thus far on the relationship between exposure to excessive fluoride and serum uric acid levels has been based predominately on experimental animals and the studies have provided mixed results. The present study was to determine a potential relationship between fluoride exposure and uric acid levels in a
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Environmental Fluoride 1977 by Rose & Marier
The Associate Committee on Scientific Criteria for Environmental Quality was established by the National Research Council of Canada in response to a mandate provided by the Federal Government to develop scientific guidelines for defining the quality of the environment. The concern of the NRC Associate Committee is strictly with scientific
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Skeletal fluorosis from instant tea
INTRODUCTION: Skeletal fluorosis (SF) can result from prolonged consumption of well water with >4 ppm fluoride ion (F(-); i.e., >4 mg/liter). Black and green teas can contain significant amounts of F(-). In 2005, SF caused by drinking 1-2 gallons of double-strength instant tea daily throughout adult life was reported in
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Pharmacokinetics of fluoride in human adults: The effect of exercise.
Highlights This human study adds to understanding of the effects of exercise on fluoride (F) metabolism. F pharmacokinetics following no, light, moderate and vigorous exercise were compared in adults. Moderate exercise resulted in the highest maximum plasma F concentration (Cmax). Area Under the Curve for plasma F concentration against
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Serum kinetics of ionized fluoride and abnormalities of urinary parameters after single intravenous injection of hydrofluoric acid in rats.
Harmful systemic effects were studied 1 hour after acute sub-lethal exposure to hydrofluoric acid (HFA) in previous study. This study was designed to investigate the early dynamic state of F in blood and urine in rats as a model of accidental occupational exposure to HFA. It was also designed to
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