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Fluorosis in some tribal villages of Dungarpur district of Rajasthan, India
The prevalences of dental and skeletal fluorosis were observed in fifteen tribal villages of the Dungapur district of Rajasthan where the fluoride (F) concentration in drinking waters varies from 0.3 to 10.8 ppm. At 1.40 and 6.04 ppm mean F concentrations, 25.64% and 84.43% of school children (<16 years), and
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Endemic Goitre in the Union of South Africa and Some Neighbouring Territories.
Authors: Douw G. Steyn, B.Sc., Dr. Med. Vet. (Vienna), D.V.Sc., Professor of Pharmacology, Medical Faculty, University of Pretoria; J. Kieser, Artseksamen (M.D.), former Chief Medical Inspector of Schools, Transvaal Provincial Administration; W.A. Odendaal, D.Sc., Research Officer in Nutrition, Union Department of Nutrition, Pretoria; H. Malherbe, M.A., M.B.Ch.B., Senior Medical Officer, Poliomyelitis Research Foundation, South
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Evaluation of thyroid hormones (TSH and T4) in pregnant women exposed to fluoride (F-) in drinking water
Recent research mentioned that exposure during pregnancy can damage the brain of the offspring (Basha P, et al., 2011). It is well know the role of the thyroid hormones in the normal development of the Central Nervous System (CNS) during the pregnancy (Nandi-Munshi and Taplin, 2015). Some evidence indicates that
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Effect of sodium fluoride on the structure and function of the thyroid and ovary in albino rats (Rattus Norvegicus).
Objective: The objective was to investigate the effect of sodium fluoride (NaF) on the structure and function of the thyroid and ovary in albino rats. Method: Twenty-four female adult albino rats, 160–180 g body weight (bw), were divided into four groups of 6: the control group (I) received defluoridated water while the other
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Chronic effects of fluoride on growth, blood chemistry and thyroid hormones in adolescents residing in three communities in Northern Mexico
This study was designed to evaluate adverse health effects in adolescents from chronic exposure to various water fluoride concentrations in three communities located in northern Mexico: Ciudad Juarez, Samalayuca, and Villa Ahumada. In these communities the fluoride concentration in water averages 0.3, 1.0, and 5.3 mg/L, respectively. The residents of
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The Relationship Between Fluoride Exposure & Goitre in South Africa
As a general rule simple goitre, irrespective of the cause, can be very, or fairly, satisfactorily combated by an adequate increase in man's daily iodine intake, except when the enlargement of the gland is due to the ingestion of excessive amounts of fluorine. The only correct solution to fluorine-induced endemic goitre is the removal of this element from the drinking water.
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Is fluoride-induced hyperthyroidism a cause of psychosis among East African immigrants to Scandinavia?
When people with a compensated fluoride-induced hypothyroidism move to a low-fluoride area, the fluoride-induced inhibition of the production of thyroid hormones ceases. In Scandinavia, the dietary intake of iodine is usually quite high due to iodized table salt and easy access to marine fish. Under these conditions, the elevated capacity for production of thyroid hormones may result in hyperthyroidism.
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Fluoride, Water Hardness, and Endemic Goitre
Variations in goitre prevalence were found to correlate closely with the fluoride content (p=0-74; P<0-01) and with the hardness (p=0.77; P<0-01) of the water in each village. The effects of fluoride and water hardness seem to be independent.
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Fluoride Aggravates Thyroid Damage Caused by Excess Iodine Intake
Chinese researchers have found that the combination of excess fluoride with excess iodine caused greater reductions in IQ, or greater increases in goitre than either scenario by itself.
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NRC (2006): Fluoride's Impact on the Thyroid Gland
Several lines of information indicate an effect of fluoride exposure on thyroid function. It is difficult to predict exactly what effects on thyroid function are likely at what concentration of fluoride exposure and under what circumstances.
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