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Effect of fluoride on express of cytokines in the hippocampus of adult rats
To investigate the effects of fluoride on the expression levels of cytokines in the rat hippocampus, 60 adult Wistar albino rats were randomly divided into four groups of 15 rats each, whose drinking water contained: (1) double distilled water (the control group); (2) 25 mg sodium fluoride (NaF)/L, (11.3 mg
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Exposure to environmental neurotoxic substances and neurodevelopment in children from Latin America and the Caribbean.
Environmental (and occupational) exposure to neurotoxic substances is a worldwide problem that can affect children's neurodevelopment (ND). In Latin American and Caribbean (LAC) countries there are over 300 million children living under the threat of neurodevelopmental delays due to toxic environmental exposure. Large industrial centers, intense mining and agricultural activities,
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[Study of the mechanism of neurone apoptosis in rats from the chronic fluorosis].
Objective: Study the mechanism of action chronic fluorosis in neurones. Methods: Terminal deoxyribo-nucleotide transferase-mediated dUTP-biotin nick end labeling (TUNEL) and flow cytometry (FCM) were used to observe changes of apoptosis in cerebral cells in chronic fluorosis in rats. Results: TUNEL results show non-random expression of DAB positive stain apoptosis cells which appear
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Sirt3-mediated mitochondrial dysfunction is involved in fluoride-induced cognitive deficits.
Highlights Fluoride induces cognitive deficits in mice. Fluoride exposure results in neural/synaptic injury in the hippocampus of mice. Mitochondrial dysfunction contributes to neural/synaptic alternations. Inhibition of Sirt3 is involved in the fluoride-evoked mitochondrial abnormalities. Abstract Excessive fluoride is capable of inducing cognitive deficits, but the mechanisms remain elusive. This study aimed
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Fluoride exposure during pregnancy from a community water supply is associated with executive function in preschool children: A prospective ecological cohort study
Highlights Maternal fluoride exposure from drinking water was associated with executive function. Poorer inhibitory control and cognitive flexibility were found, particularly in girls. Maternal fluoride exposure was not associated with lower intelligence in children. Water fluoridated at the recommended level of 0.7 mg/L may adversely affect executive function. Background On May 19,
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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 78 studies reporting reduced IQ (75 studies with children and 3 studies with adults) and several on the impaired learning/memory in animals. And there are studies which link
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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'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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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
The NRC's analysis on fluoride and the brain.
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