Abstract
HF exposure might produce adverse effects in industrial workers. A 3 mo. exposure of rats to HF at 10 mg/m3 8 h/day 5 days/wk resulted in increased blood serum concentrations of hydroxyproline and hydroxylysine and in enhanced urinary excretion of these amino acids and in changes of collagen fractions in the liver, lungs and skin. In all tissues studied (especially liver), soluble and insoluble collagen decreased. HF affected biosynthesis and maturation of collagen fibers.
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Influence of sodium fluoride and caffeine on the concentration of fluoride ions, glucose, and urea in blood serum and activity of protein metabolism enzymes in rat liver.
The aim of the study was examining the effect of fluoride ions and caffeine administration on glucose and urea concentration in blood serum and the activity of protein metabolism enzymes and selected enzymes of the urea cycle in rat liver. The study was carried out using 18 male Sprague-Daowley rats
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Influence of methionine upon the concentration of malondialdehyde in the tissues and blood of rats exposed to sodium fluoride
The aim of the study has been to determine the influence upon the kidney, liver, and the blood prooxidative system, exercised by administration of methionine (Met), under conditions of oxidative stress induced by sodium fluoride (NaF).The experiment was carried out on Wistar FL rats (adult females) that, for 35 days,
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Lipid peroxidation in fluorosis and the protective role of dietary factors
The influence of chronic Fl intoxication on lipid peroxidation and the state of the antioxidant system was studied in rats on different diets. Chronic Fl intoxication inhibited antioxidant activity and caused an increase in the rate of peroxidation and the level of lipoperoxides in liver, brain and serum. Diets with
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Oxidative stress parameters in rats exposed to fluoride and caffeine
In our experiment, the 1-month effects of caffeine (Caff) and fluoride (F) administered separately and together on nitric oxide and total antioxidant status in serum, brain, liver and kidney of rats were investigated. Also, the influence of caffeine on fluoride excretion with urine was studied. Thirty adult male Wistar rats
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Influence of fluoride compounds upon connective tissue metabolism in growing rats: 1. Effect of hydrofluoride on collagen metabolism.
Female rats were exposed to hydroxyfluoride (2.7 mg/m3 or 5.0 mg/m3) seven weeks before pregnancy during pregnancy and lactation as well as subsequently with the offsprings up to 1, 2, 4 and 6 months after birth. The offspring was taken for investigations. It was found that serum hydroxyproline and hydroxylysine
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