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Trimester Specific Association of Prenatal Fluoride Exposure and Cognitive Outcomes in Children in Mexico.
Background: There is increasing evidence suggesting that prenatal exposure to fluoride is associated with lower neurocognitive performance in offspring. The objective of this study is defining periods in early life associated with greater sensitivity to fluoride exposures. METHODS: This study focused on participants from the Early Life Exposures in Mexico to
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The effects of endemic fluoride poisoning caused by coal burning on the physical development and intelligence of children.
Goal: To investigate the effects of endemic fluoride poisoning caused by coal burning on the physical development and intellectual ability of children. Method: Using random sampling from the relevant population, 176 fluorosis sufferers aged 7–12 (the subjects) were drawn from a heavily fluoride poisoned area of Zhijin County, with 50 children without dental
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A study of the IQ levels of four- to seven-year-old children in high fluoride areas.
Using the Wechsler Preschool and Primary Scale of Intelligence, we conducted a study to determine the intellectual ability of 147 four- to seven-year-old preschool children in a high fluoride zone [of a rural area of Shehezi in Xinjiang Province, China] and 83 similarly-aged children from a low fluoride zone in
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Arsenic and fluoride exposure in drinking water: children’s IQ and growth in Shanyin County, Shanxi Province, China.
Background: Recently, in a cross-sectional study of 201 children in Araihazar, Bangladesh, exposure to arsenic (As) in drinking water has been shown to lower the scores on tests that measure children’s intellectual function before and after adjustment for sociodemographic features. Objectives: We investigated the effects of As and fluoride exposure on
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Decreased learning and memory ability in rats with fluorosis: increased oxidative stress and reduced cholinesterase activity in the brain
The aim of this research was to study the mechanism of the decreased learning and memory of rats with chronic fluorosis. Compared with controls, decreased learning and memory ability, lower levels of total antioxidant capacity (TAOC), and increased content of malondialdehyde (MDA) in brain tissues were observed in both male
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Fluoride Affects Learning & Memory in Animals
An association between elevated fluoride exposure and reduced intelligence has now been observed in 65 IQ studies. Although a link between fluoride and intelligence might initially seem surprising or random, it is actually consistent with a large body of animal research. This animal research includes the following 45 studies (out
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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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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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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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