Abstract
The purpose was to discover whether fluoride (F) accumulates in the aged human pineal gland. The aims were to determine (a) F-concentrations of the pineal gland (wet), corresponding muscle (wet) and bone (ash); (b) calcium-concentration of the pineal. Pineal, muscle and bone were dissected from 11 aged cadavers and assayed for F using the HMDS-facilitated diffusion, F-ion-specific electrode method. Pineal calcium was determined using atomic absorption spectroscopy. Pineal and muscle contained 297+/-257 and 0.5+/-0.4 mg F/kg wet weight, respectively; bone contained 2,037+/-1,095 mg F/kg ash weight. The pineal contained 16,000+/-11,070 mg Ca/kg wet weight. There was a positive correlation between pineal F and pineal Ca (r = 0.73, p<0.02) but no correlation between pineal F and bone F. By old age, the pineal gland has readily accumulated F and its F/Ca ratio is higher than bone.
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The Effect of Fluoride on the Physiology of the Pineal Gland
The purpose was to discover whether fluoride (F) accumulates in the pineal gland and thereby affects pineal physiology during early development. The [F] of 11 aged human pineals and corresponding muscle were determined using the F-electrode following HMDS/acid diffusion. The mean [F] of pineal gland was significantly higher (p <
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Fluoride in the brain and pineal gland of two duck species, Aythya Fuligula and Melanitta Fusca, wintering in northwestern Poland
Fluoride (F–) deposits formed, e.g., in bones, have hitherto mainly been analyzed in highly mineralized tissues obtained from mammals and only rarely from birds. Under certain conditions, F– may also accumulate significantly in the brain and pineal gland and interfere with the secretion of melatonin by that gland. The mammalian and avian pineal gland is
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Fluoride exposure and duration and quality of sleep in a Canadian cohort.
Background: Research suggests that fluoride from dietary and environmental sources may concentrate in calcium-containing regions of the body such as the pineal gland. The pineal gland synthesizes melatonin, a hormone that regulates the sleep-wake cycle. We used population-based data from Cycle 3 (2012-2013) of the Canadian Health Measures Survey (CMHS)
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Urinary fluoride patterns among children in Mexico and Canada.
Background: New research suggesting fluoride is a developmental neurotoxicant highlights the importance of characterizing fluoride exposure in children. Fluoride is added to salt in Mexico and to drinking water in Canada to prevent dental caries. We examined the association of childhood urinary fluoride (CUF) with food and water fluoride levels
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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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Luke (2001): Fluoride Deposition in the Aged Human Pineal Gland
This study has added new knowledge on the fate and distribution of fluoride in the body. It has shown for the first time that fluoride readily accumulates in the human pineal gland although there was considerable inter-individual variation
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Luke (1997): The Effect of Fluoride on the Physiology of the Pineal Gland (Excerpts)
"The results suggest that fluoride is associated with low circulating levels of melatonin and this leads to an accelerated sexual maturation in female gerbils. The results strengthen the hypothesis that the pineal has a role in pubertal development."
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