To investigate the effect of coal-burning endemic fluorosis on children’s physical development and intellectual level so as to provide data support for the protection of children’s healthy growth in fluorosis areas.
Ninety children with coal-burning endemic fluorosis were selected for the study, which were divided into heavy fluorosis area group, middle fluorosis area group and light disease area group. 30 children in each group. Another 30 children were selected from non-fluorosis areas as normal group. The index of physical development and intellectual level of each group were compared.
Dental fluorosis and urinary fluoride concentration of fluorosis area groups were higher than that of normal group (P<0.05); index of height, weight and vital capacity in normal group children’s was significantly better than that of other 3 groups (P<0.050); intelligence quotient (IQ) index in fluorosis groups was lower than that of normal group (P<0.05).
The coal-burning endemic fluorosis may have a serious impact on children’s physical growth and intellectual level, active preventive measures should be attached to protect children’s health.
Investigation on children’s growth and development under long-term fluoride exposure
Objective To study the influence on children’s growth by long-term high fluoride exposure. Methods Case group was selected in high fluoride areas and control group was selected in non-high fluoride areas. The difference of children’s growth levels were analyzed between 2 groups. Results The IQ of case group was significantly lower than that of control
OP V – 2 Prenatal fluoride exposure and neurobehavior among children 1–3 years of age in Mexico
Background/aim Recent studies report an inverse association between fluoride (F) exposure and IQ in children, but few included individual measures of exposure or assessed associations with prenatal exposure using a prospective study design. Methods This study utilised the Early Life Exposures in Mexico to Environmental Toxicants (ELEMENT) birth cohort and archived pregnancy samples
Prenatal Fluoride Exposure and Cognitive Outcomes in Children at 4 and 6–12 Years of Age in Mexico
Background: Some evidence suggests that fluoride may be neurotoxic to children. Few of the epidemiologic studies have been longitudinal, had individual measures of fluoride exposure, addressed the impact of prenatal exposures or involved more than 100 participants. OBJECTIVE: Our aim was to estimate the association of prenatal exposure to fluoride with
Blood lead of children in Wamiao-Xinhuai intelligence study (Letter).
As an additional part of our investigation of an association between fluoride in drinking water and children’s intelligence in two villages of Sihong County, Jiangsu Province, China, we have now determined blood lead levels of children in that study. Blood samples (80 ?L) were collected on June 18 and 19, 2003
The effect of fluorine on the level of intelligence in children.
Recently, many researchers and scholars have studied about the effects of the trace element, iodine, on the level of intelligence in children. However there has been little coverage or noise about the same effect of fluorine on children. For this purpose we have performed some research and the results are as follows.
Related Studies :
Fluoride & IQ: The 65 Studies
As of May 2020, a total of 73 studies have investigated the relationship between fluoride and human intelligence. Of these investigations, 65 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 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
Factors which increase the risk for skeletal fluorosis
The risk for developing skeletal fluorosis, and the course the disease will take, is not solely dependent on the dose of fluoride ingested. Indeed, people exposed to similar doses of fluoride may experience markedly different effects. While the wide range in individual response to fluoride is not yet fully understood, the following are some of the factors that are believed to play a role.
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
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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