Seraj B, Shahrabi M, Shadfar M, Ahmadi R, Fallahzadeh M, Eslamlu HF, Kharazifard MJ. The AWM for the children whose household water had low fluoride had higher AWMI 122.58±19.9 compared to those whose household had high fluoride in the with ANOVA F (2, 266) = 17.968, p?.0001 and Tukey HSD for low and medium (m=-5.919, se=3.146, p=.145, low and high fluoride, (m=-18.559. (3) Parents’ educational level was determined (and found to have a significant influence on IQ, p < 0.01). “High fluoride burden has a definite effect on the intellectual and physical development of children.”, 512 children (222 children in high-F village, 290 children in low-F village), High F village=2.47+0.79 mg/L (range=0.57-4.50 mg/L). 268 children: 134 children each from endemic fluorosis area and non-endemic fluorosis areas. Fluoride in drinking water for (1) Fetal fluoride exposure and (2) breast-fed versus formula-fed from both fluoridated and non-fluoridated cities. (2001). (1991). 63.2% of children in high F area had IQ less than 90, versus 47.7% of children in low F village. Women living in areas with fluoridated tap water (n = 141) compared with, was associated with a 4.49-point lower IQ score (95% CI, -8.38, to -0.60) in boys, but there was no statistically significant association with IQ scores in girls, women was associated with a 3.66 lower IQ score (95% CI, -7.16 to -0.14) in boys and girls. After a certain period of comprehensive treatment,the decreased level of cognition is inhibited and the mental retardation in the low-age group is improved.”, 24,623 children (65 studies) and 245 adults (2 studies). Lin FF, Aihaiti, Zhao HX, Lin J, Jiang JY, Malmaiti, and Aiken. The parents or guardians completed a questionnaire on demographic and personal characteristics including the child’s sex, age at testing, parity, illnesses before age 3, past medical history of the child and caretakers, parental or guardian age, education and occupational histories, and residential history, and household income. The molecular structure of Sarin: None of the children in the low-fluoride region were intellectually compromised when compared to 15 (20%) in the high-fluoride region and 4 (5.3%) in the medium-fluoride areas [Table 1]. ACADEMIC BACKGROUND 299 mother–child pairs, of whom 287 and 211 had data for the General Cognitive Index and IQ analyses, respectively. (2) Children were excluded from study if they had congenital or acquired diseases “not related to fluoride.” (3) Groups separated by intervals of 6 months in age. Trivedi TMH, Verma RJ, Chinoy NJ, Patel RS, Sathawara NG. (3) Sites are not exposed to known neurotoxins (e.g. This study found that in COMT gene polymorphism, there was no difference between children in the endemic fluorosis area and those in the non-endemic fluorosis area (P >0.05). None of the children in the low-fluoride region had dental fluorosis as compared to 8 (10.7%), 45 (60.0%), and 22 (29.3%) children in the high-fluoride area who had mild, moderate, and severe dental fluorosis, respectively. Razdan P, Patthi B, Kumar JK, Agnihotri N, Chaudhan P, Prasad M. (2017). control = 0.96+0.52 mg/L. the design of our study, Wechsler Preschool and Primary Scale of Intelligence, Third, “In this study, maternal exposure to higher levels of fluoride. This could be demonstrative of the fact that fluoride acts to increase the toxicity and worsen the occurrence of thyroid swelling.”, 158 children from two neighboring townships (107 children with various degrees of dental fluorosis; 51 children with no dental fluorosis), – Children with no dental fluorosis = 0.5 mg/kg- Children with dental fluorosis (HiF1) = 4.7 mg/kg- Children with dental fluorosis (HiF2) = 5.2 mg/kg- Children with dental fluorosis (HiF3) = 31.6 mg/kg. (2) Child’s pre-school education history was determined. (1) Both areas are free from iodine deficiency. “Comparison of mean IQ of children in both high (76.20 ± 19.10) and low F (85.80 ± 18.85) areas showed a significant difference (, “Fluoride in the drinking water was significantly related with the IQ of children. The Draw-A-Person (DAP) test is a valuable instrument for the assessment of IQ, not only because it is easy to administer, but also for its multiple uses [25]. (A) Children in fluorosis area (without water improvement) have lower average IQ than children in fluorosis area (with water improvement) for all age groups, p<0.01. (1) Children in each of the three areas have adequate iodine exposure as determined through urine analysis. Find ways to get involved. The occupations, culture, standard of living, lifestyle habits, access to health and transportation facilities are “essentially the same” between the two areas. Thus, traditionally, people use cooking stoves with indoor smoke by burning the coal to bake food and to keep warm their bodies, causing ingestion of smoke through the respiratory tract. Dean’s fluorosis index (WHO criteria) (Molina-Frechero et al., 2015) was used to estimate the prevalence and severity of DF. Iranian version of the Raymond B Cattell test, “The IQ of the 19 children in the high-F region was lower (mean±SD: 81.21±16.17), than that of the 20 children in the low-F region (mean±SD: 104.25±20.73, p=0.0004). “Above average IQ of children in the control group was 97.1% (101/104),which was significantly higher than that of long and short treatment groups; after a lengthy treatment, mental retardation detection rate was significantly lower in the low-age group,8-10 year-old children(x2 =7.542,P < 0.01). very mild = 1.17+0.48 mg/L by early fluorine intake, resulting in children’s lack of interest in things and less general knowledge… In the children’s vocabulary, calculation and similarities were decreased by nearly 2 times, indicating that their overall knowledge content and processing ability were weak… Compared with common sense test, influence by culture and education is less, and the comprehensive understanding level of children with dental fluorosis is most significantly reduced, i.e., by about three times. • The Mother-Offspring studies. Using the Khartoum Ministry of Education’s method, the schooling performance for the boys’ and girls’ primary schools in the 16 areas where the F samples were taken and were assessed by calculating the average score and high score prevalence… Generally, the schooling performance in these rural areas was poor compared to urban areas. The similar relationship between IQ scores and fluoride exposure were observed in boys and girls, respectively. The higher the water fluoride is, the lower the level of IQ.”. (A) Average IQ is lower in High-F area (91.72, “In agreement with other studies elsewhere, these findings indicate that children drinking high F water are at risk for impaired development of intelligence.”. Wechsler Adult Intelligence Scale test for Rural China (WATS-RC); Associated learning (AL) test; Digit Span (DS) test; Similarity test; Speech fluency test (SFT); Comprehension test. We also assessed verbal IQ (VIQ), representing verbal reasoning and comprehension, and performance IQ (PIQ), representing nonverbal reasoning, spatial processing, and visual-motor skills. “The average age of children assessed was 8 months (3–15 months) and almost 70% were girls.” The average age of the mothers was 22.4 ±4.0. – Areas have same geographical features and standard of living. we selected Tongxu County, Kaifeng, Henan Province, a typical drinking-water-born fluorosis area, as the research region (no industrial sources of neurotoxic environmental pollutants such as arsenic, lead, mercury, etc.) (2) Children with bone and joint deformities or nervous system symptoms were excluded from study. (C) Children born prior to water improvement program in fluorosis area with water improvement have lower average IQ than children in non-fluorosis area, p<0.05. 741 children (104 children from low-fluoride area; 298 children from an endemic fluorosis area with long-term defluoridation measures; 339 children from endemic fluorosis area with short-term defluoridation measures). According to whether the mother was exposed to excessive fluoride (the fluoride concentration in drinking water > 1.0 mg/L, GB5749–2006) during pregnancy, the children were divided into two groups: prenatal excessive fluoride exposure group (PF), and prenatal control group (PC). Shivaprakash PK, Ohri K, Noorani H. (2011). (2007). Adults in high-F area diagnosed as suffering from fluoride poisoning (as evident by dental and skeletal changes). 1A). 96 children from each of the three fluoride water levels above, for a total of 288. Schools: Virajpet (low fluoride level < 1.2 ppm), Banavara (Medium fluoride level 1.2-2 ppm), and Mastihalli (High fluoride levels > 3 ppm). 99 children. These. se=3.124, p?.001; medium and high (m=-12.640, se= 3.32, p?.001 at 95% CL. it was very difficult to obtain UF concentrations data from a pregnant mother, thus, we used the fluoride level in local drinking water during mother’s pregnancy. . (2014). Fluoride and Oral Health. (1) A multiple regression analysis was used that controlled for blood lead levels, socioeconomic status, mother’s education, height-for-age (an index of malnutrition), and transferrin saturation. . 775 primary students, 315 boys and 460 girls from 27 schools. (1) The study included only those children who were life-long residents of the areas. ... Read More, Excerpt: "However, a third source involved in the talks said the problem for Freeport is that Grasberg's concentrate will risk exceeding the maximum permitted fluorine content of 1,000 parts per million, or 0.1%, in top copper... Read More.
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