Abstract
SUMMARY: In an extension of previous work on fluoride (F) toxicity in a group of 80 Swiss albino mice, the mitigating effects of polyphenols in black tea on the F-induced increase in glycogen, cholesterol, and total lipids in the cerebral hemisphere (CH), cerebellum (CB), and medulla oblongata (MO) regions of the brain were studied. Oral administration of sodium fluoride (6 and 12 mg NaF/kg bw/day) to the mice for 30 days resulted in a significant dose-dependent increase in the parameters studied. Withdrawal of treatment for 30 days caused significant but only partial recovery. Administration of a 2% black tea infusion alone for 30 days did not cause any significant alteration. However, concurrent administration of NaF and black tea infusion for 30 days produced significant mitigation in all the parameters.
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Amelioration by black tea of sodium fluoride-induced changes in protein content of cerebral hemisphere, cerebellum and medulla oblongata in brain region of mice.
Oral administration of sodium fluoride (NaF, 6 and 12 mg/kg body weight/day) to Swiss strain male albino mice for 30 days caused significant dose-dependant reduction in the content of acidic, basic, neutral, and total protein in cerebral hemisphere, cerebellum and medulla oblongata region of brain. After 30 days of NaF
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Public-health risks from tea drinking: Fluoride exposure.
Aims: Due to new evidence on fluoride neurotoxicity during early life, this study examined maternal exposure to fluoride through tea consumption in a low-fluoride region and measured fluoride releases from commercially available teas (tea bags and loose teas) to determine the need to limit fluoride exposure. Methods:
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Black tea extract mitigation of NaF-induced lipid peroxidation in different regions of mice brains.
SUMMARY: As part of our investigation of fluoride toxicity effects in a group of 80 Swiss albino adult male mice, we examined the mitigating effects of black tea extract (BTE) on the F-induced enzymatic and non-enzymatic parameters of oxidative stress in the cerebral hemisphere (CH), cerebellum (CB), and medulla oblongata (MO) of the
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Fluoride contents in tea and soil from tea plantations and the release of fluoride into tea liquor during infusion.
Tea Camellia sinensis (L.), a perennial shrub, is cultivated in acidic soils. It has been noted that the occurrence of fluorosis in some inhabitants of pastoral and semiagricultural, semipastoral areas of Sichuan Province, People’s Republic of China, is due to drinking a large quantity of tea liquor made from brick
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Flavor augmentations affect fluoride bioavailability from brewed dark tea.
Highlights The bioavailability of fluoride in dark tea and NaF aqueous solution was evaluated. Milk significantly reduced the bioavailability of fluoride in dark tea. In rats, butter prolonged the absorption period of fluoride from dark tea. Fluorosis caused by consumption of dark tea is a major public health problem in the
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Fluoride & IQ: 76 Studies
Note: See the Updated list of fluoride IQ studies at https://fluoridealert.org/researchers/fluoride-iq-studies/the-fluoride-iq-studies/ • As of July 18, 2022, a total of 85 human studies have investigated the relationship between fluoride and human intelligence. • Of these investigations, 76 studies have reported that elevated fluoride exposure is associated with reduced IQ in humans. • The studies
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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
The NRC's analysis on fluoride and the brain.
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Fluoride's Effect on Fetal Brain
The human placenta does not prevent the passage of fluoride from a pregnant mother's bloodstream to the fetus. As a result, a fetus can be harmed by fluoride ingested pregnancy. Based on research from China, the fetal brain is one of the organs susceptible to fluoride poisoning. As highlighted by the excerpts
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Tea Intake Is a Risk Factor for Skeletal Fluorosis
A number of recent studies have found that heavy tea drinkers can develop skeletal fluorosis - a bone disease caused by excessive intake of fluoride.
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Exposure Pathways Linked to Skeletal Fluorosis
Excessive fluoride exposure from any source -- and from all sources combined -- can cause skeletal fluorosis. Some exposure pathways , however, have been specifically identified as placing individuals at risk of skeletal fluorosis. These exposure pathways include: Fluoridated Water for Kidney Patients Excessive Tea Consumption High-Fluoride Well Water Industrial Fluoride Exposure Fluorinated Pharmaceuticals (Voriconazole
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