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Association between fluoride exposure and behavioural outcomes of school-age children: a pilot study in China.
To assess the association between fluoride exposure and children’s behavioural outcomes, we recruited 325 resident school-age children (7–13 years old) lived in Tongxu County of Henan Province in China. We measured urinary fluoride (UF) concentrations using the ion-selective electrode method. Children’s behavioural outcomes were assessed by Conners’ Parent Rating Scale-Revised, including
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Oxidative stress might be a mechanism connected with the decreased alpha 7 nicotinic receptor influenced by high-concentration of fluoride in SH-SY5Y neuroblastoma cells
The possible mechanism concerning decreased alpha 7 nicotinic acetylcholine receptor (nAChR) influenced by fluorosis was investigated. SH-SY5Y cells were exposed to fluoride within the range of 0.05-5 mM [corrected] or ferrous iron (1-100 mM) [corrected] a free radical inducer. The levels of alpha 7 nAChR expression, lipid peroxidation and protein
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Quercetin ameliorates oxidative stress, neural damage of brain and behavioral impairment of rat with fluoride exposure.
Excess fluoride causing fluorosis, can enter in to brain, disturb oxidative status and induce neural damage. Quercetin, antioxidant flavonoid stabilizes oxidative milieu of brain by quenching free radicals. The present study aimed to report ameliorative effect of quercetin on NaF induced oxidative stress, histological alterations in the brain and behavioural
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Curcumin attenuates neurotoxicity induced by fluoride: An in vivo evidence.
Background: Curcumin (Cur), an active ingredient of turmeric is known to have multiple activities, including an antioxidant property and has been suggested to be useful in treatment of several neurological diseases. Objective: To investigate the neuroprotective effects of Cur to mitigate the effect of the Fluoride (F) induced neurotoxicity in mice
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Effect of fluoride in drinking water on children’s intelligence.
The Intelligence Quotient (IQ) was measured in 512 children, aged 8–13 years, living in two villages in Sihong County, Jiangsu Province, China, differing in the level of fluoride in their drinking water. In the high-fluoride village of Wamiao (water fluoride: 2.47±0.79 mg/L; range: 0.57–4.50 mg/L), the mean IQ of 222
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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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Fluoride & IQ: The 65 Studies
As of May 2020, a total of 73 studies have investigated the relationship between fluoride and human intelligence. Of these investigations, 65 studies have found that elevated fluoride exposure is associated with reduced IQ in humans, while over 60 animal studies have found that fluoride exposure impairs the learning and/or
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Fluoride: Developmental Neurotoxicity.
Developmental Neurotoxicity There has been a tremendous amount of research done on the association of exposure to fluoride with developmental neurotoxicity. There are over 60 studies reporting reduced IQ in children and several on the impaired learning/memory in animals. And there are studies which link fluoride to Attention Deficit Hyperactivity Disorder. Teaching
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Fluoride's Direct Effects on Brain: Animal Studies
The possibility that fluoride ingestion may impair intelligence and other indices of neurological function is supported by a vast body of animal research, including over 40 studies that have investigated fluoride's effects on brain quality in animals. As discussed by the National Research Council, the studies have consistently demonstrated that fluoride, at widely varying concentrations, is toxic to the brain.
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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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