Abstract

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 group (t = 2.621, P<0.01) and it was negatively correlative with the concentration of children’s urinary fluoride in a certain extent (r = -0.119, P<0.05). Children’s heights and weights of case group were significantly lower than those of control group (t = 2.621, P<0.01 u = 3.515 P < 0.01).

Conclusions

Long-term fluoride exposure can affect children’s growth and development. In order to protect children’s health measures of prevention and treatment should be adopted.

• Related Studies :

  • Effect of coal-burning endemic fluorosis on children's physical development and intellectual level

    Objective 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. Methods Ninety children with coal-burning endemic fluorosis were selected for the study, which were divided into heavy fluorosis area group, middle

  • 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

  • Early Life Exposure in Mexico to ENvironmental Toxicants (ELEMENT) Project.

    PURPOSE: The Early Life Exposure in Mexico to ENvironmental Toxicants (ELEMENT) Project is a mother-child pregnancy and birth cohort originally initiated in the mid-1990s to explore: (1) whether enhanced mobilisation of lead from maternal bone stores during pregnancy poses a risk to fetal and subsequent offspring neurodevelopment; and (2) whether

  • The relationships between low levels of urine fluoride on children’s intelligence, dental fluorosis in endemic fluorosis areas in Hulunbuir, Inner Mongolia, China.

    There has been public concern about children's intellectual performance at high levels of fluoride exposure, but few studies provide data directly to the question of whether low fluoride exposure levels less than 3.0 mg/L in drinking water adversely associated with children's intelligence. In this survey, we investigated the effects of

• Related FAN Content :

  • Fluoride & IQ: The 63 Studies

    As of November 2019, a total of 71 studies have investigated the relationship between fluoride and human intelligence. Of these investigations, 63 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

  • 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 Affects Learning & Memory in Animals

    An association between elevated fluoride exposure and reduced intelligence has now been observed in over 61 studies of human populations. 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

  • Nutrient Deficiencies Enhance Fluoride Toxicity

    It has been known since the 1930s that poor nutrition enhances the toxicity of fluoride. As discussed below, nutrient deficiencies have been specifically linked to increased susceptibility to fluoride-induced tooth damage (dental fluorosis), bone damage (osteomalacia), neurotoxicity (reduced intelligence), and mutagenicity. The nutrients of primary importance appear to be calcium,

  • Genetic Susceptibility to Fluoride

    "The results suggest that genetic factors may contribute to the variation in bone response to fluoride exposure.... The genetic influence on the efficacy and adverse effects has been demonstrated for some medications but has never been demonstrated for bone response to fluoride. The demonstration of such genetic influence on bone