Fluoride Levels in Urine, Blood Plasma and Serum of People Living in an Endemic Fluorosis Area in the Thar Desert, Pakistan
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN(2015)
Abstract
Fluoride (F-) levels in the urine, blood plasma and serum samples of people living in a village in the Thar Desert have been analysed where fluorosis is endemic and groundwater contains fluoride as high as 9.76 mg/L. Average values of fluoride levels in these human specimens i.e. urine, blood plasma and serum have been found to be 12.98 mg/L, 0.61 mg/L and 0.75 mg/L, respectively. These values are much higher than the normal values reported from other parts of the world. It was observed that urinary fluoride levels increase with age of an individual but with an insignificant correlation (r = 0.116), however, fluoride levels in plasma and serum samples did not vary considerably with age in male and female subjects. It has been found that after the age of 50 years the urinary fluoride decreases with its concomitant increase in serum fluoride level. Since groundwater is the only available source of water for human consumption and it contains higher fluoride (av. 7.09 mg/L) than WHO limit (1.5 mg/L), therefore, it is the main cause of fluorosis in the area.
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Key words
Fluoride in plasma,Fluoride in serum,Fluoride in urine,Dental and Skeletal Fluorosis,Thar Desert Pakistan
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