Abstract
Rats given sodium fluoride at 10 mg/kg daily by the intraperitoneal route were more sensitive to the convulsant action of strychnine and pentylenetetrazol and to electroshock. This increase in sensitivity to CNS stimulation was observed also in two other groups of rats which were given a diet with added sodium fluoride amounting to 7 and 70 parts per million in terms of fluoride. Prolonged treatment with fluoride also lengthened the sleeping time induced by pentobarbital and increased the protective effect of diphenylhydantoin against electroshock. The increase in sensitivity to some CNS-active agents in the fluoride-treated rats disappeared after these rats were given the control diet for 2 weeks,
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Effect of fluoride exposure on anxiety- and depression-like behavior in mouse.
Highlights Anxiety-like behavior was significantly altered in the mice exposed to NaF for 120 days. Depression-like behavior was significantly altered in the 120 days NaF treated mice. NaF significantly altered mRNA expression levels of anxiety- and depression-like related genes in the hippocampus. Fluoride led to an imbalance between excitation and
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Effect of NaF on albino female mice with special reference to behavioral studies and ACh and AChE levels
The present study investigates the effect of the Sodium Fluoride (NaF) on Wistar Albino mice. The animals have been divided into three batches each containing five individuals among which 1 batch served as control while, remaining two batches were treated with 5 and 10ppm respectively. After completion of exposure, the
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Protective effects of aqueous extract of fruit pulp of Tamarindus indica on motor activity and metabolism of the gastrocnemius muscle of rats treated with fluoride
This study reports the protective effects of tamarind ingestion against fluoride induced changes on motor activity and metabolism of Gastrocnemius muscle (GM) of rats. The male Wistar rats were divided into four groups - control, fluoride treated i.p. (20 mg NaF/Kg bw) and Tamarind (Tamarindus indicus III -150mg/kg bw and
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Human epiphyseal concrements in schizophrenia.
The epiphysis is a gland containing firm extracellular bodies (brain sand) the number of which increases with age. Microscopy and roentgen microtomography showed that in some cases of schizophrenia the amount of brain sand decreases. In parallel, cytoplasm of pinealocytes appears to contain concrements of a new type--irregular hollow spheres
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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: 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 & 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'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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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
The NRC's analysis on fluoride and the brain.
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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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