Abstract
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 fluorosis (the control) selected from a less severely poisoned area. The children were subjected to tests to determine levels of urinary fluoride, physical development, and intellectual ability, followed by analysis of the various measurements.
Results: Compared to the control group, the fluorosis group showed retarded physical development, and the levels of urinary fluoride and intellectual ability were both lower than the control (P < 0.05 for both).
Conclusion: high fluoride burden has a definite effect on the intellectual and physical development of children.
Translated by Julian Brooke for Fluoride Action Network and published with the permission of the Journal of Applied Clinical Pediatrics 2005;20(9):897-9 in the journal Fluoride.
-
-
Effect of high water fluoride concentration on the intellectual development of children in Makoo/Iran.
OBJECTIVE: Prolonged excessive intake of fluoride during child's growth and development stages has been associated with mental and physical problems. The aim of this study was to investigate the effect of excessive fluoride intake on the intelligence quotient (IQ) of children living in five rural areas in Makoo/Iran. MATERIALS AND METHODS:
-
Effect of fluoride exposure on Intelligence Quotient (IQ) among 13-15 year old school children of known endemic area of fluorosis, Nalgonda District, Andhra Pradesh.
Background: Waning controversy over fluoride and water fluoridation is rekindling with the findings released from certain fluoride studies which reported an inverse association between fluoride exposure and intelligence. Objective: To assess the relationship between exposure to different drinking water fluoride levels and children's Intelligence Quotient (IQ) among 13-15 year old school
-
A Benchmark Dose Analysis for Maternal Pregnancy Urine-Fluoride and IQ in Children.
This article is a preprint and has not been peer-reviewed [what does this mean?]. It reports new medical research that has yet to be evaluated and so should not be used to guide clinical practice. Abstract As a safe exposure level for fluoride in pregnancy has not been established, we used data
-
Research on the effects of fluoride on child intellectual development under different environmental conditions.
Goal: To study the effects of the fluoride and iodine content of drinking water on child intellectual development and the interaction between the two factors and also the relationship of educational factors to such development. Methods: The subjects of the investigation were 8- to 14-year-old children randomly selected from endemic areas as well
-
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
Related Studies :
-
-
-
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
-
Fluoride & IQ: 67 Studies
As of May 2020, a total of 75 studies have investigated the relationship between fluoride and human intelligence. Of these investigations, 67 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
-
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.
-
NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
The NRC's analysis on fluoride and the brain.
-
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
Related FAN Content :
-