Abstract
Objective: Explore the active mechanisms of growth inhibitors (somatostatin, SS) participating in learning and memory obstacles from brick tea fluoride and aluminum poisoning of rats. Method: Based on the tea-drinking habits of herders, a rat chronic brick tea fluoride and aluminum poisoning animal model was established, and randomly divided into control groups and model groups. After the model was established for one year, an eight-arm maze test was performed to observe the differences in the spatial learning and memory capabilities of the two rat groups, and immunochemistry was used to test the changes in the rat hippocampus growth inhibitor expression one year after the model was established. Results: Compared with the control group, there was a significant difference (P<0.01) in the rat eight-arm maze learning and memory capabilities one year after the model was established, and the rat hippocampus SS expression fell (P<0.01) one year after the model was established. Conclusion: Brick tea fluoride and aluminum poisoning of rats obstructs learning and memory and brain tissue SS expression decreases.
(Translated by Alta Language Services in February 2014, courtesy of Fluoride Action Network)
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Neurobehavioral toxicity produced by sodium fluoride in drinking water of laboratory rats
The effect of exposure to different concentrations of sodium fluoride (Na-F) for different durations on learning and memory tasks in rats (non-associative and associative learning) was assessed in our study. Three groups of fifteen pregnant Wistar female rats each, were administered Na-F in drinking water at one of three concentrations;
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Association between fluoride exposure in drinking water and cognitive deficits in children: A pilot study.
Highlights Cognitive ability was assessed in children exposed to a range of fluoride levels in drinking water. The study successfully implemented the CANTAB test to children residing in rural Ethiopia. Water fluoride levels were negatively associated with children's drawing skills, and CANTAB's memory and learning tests. Children exposed to high
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[The establishment and assessment of animal model of chronic fluorosis-induced cognitive dysfunction in rats].
Objective To establish the rat model of cognitive dysfunction induced by chronic fluorosis and to investigate the underlying mechanism. Methods Animal model of chronic fluorosis was established by feeding Wistar rats on distillated water containing different concentrations of sodium fluoride (0, 50, 100, and 150 mg/L) for six months; Y-maze and
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Melatonin ameliorates fluoride induced neurotoxicity in young rats: an in vivo evidence
Objective: Developing brain is highly vulnerable to environmental toxins. Recently, fluoride was declared as a developmental neurotoxin and heralded search for natural neuroprotectant. In the present study, we have evaluated the neuroprotective and anti-inflammatory efficacy of melatonin in fluoride induced neurotoxicity. Methods: Animals were divided into following groups; the first group
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Psychopharmacology of fluoride: a review
Although the blood-brain barrier is relatively impermeable to fluoride, it does not pose an absolute barrier and fluoride has the ability to enter the brain. The literature was examined to assess the quality of the evidence for cerebral impairment occurring due to exposure to fluoride from therapeutic or environmental sources.
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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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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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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
The NRC's analysis on fluoride and the brain.
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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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