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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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[Effect of different fluoride and iodine concentration in drinking water on children's dental fluorosis and thyroid function].
Objective: To investigate the effect of different concentrations of fluoride and iodine in drinking water on children's dental fluorosis and thyroid function. Methods: According to different concentration of fluoride and iodine in drinking water, four villages in two counties of Henan province were classified as high fluoride and iodine, high fluoride,
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Fluorine in the aetiology of endemic goitre
MANY different factors leading to relative or absolute deficiency of iodine may cause changes in the thyroid gland. May (1935) found that the administration of fluorine to rats produced hypoplasia of the thyroid epithelium with altered staining reaction of the colloid. Having experimented with over 800 patients, he advocated internal
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[Premature aging of the population in the zone of endemic goiter.]
Original title: Prezhdevremennoe starenie naseleniya v zone rasprostraneniya endemicheskogo zoba. No Abstract
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[Effects of fluoride on thyroid structure in chicks].
Objective: To investigate the effects of fluoride on thyroid structure in chicks. Methods: 250 one day chicks were randomly divided into 5 groups, 50 for each. Group I was the control, and other four groups, group II, III, IV, V were fed the diets containing 500, 1,000, 1,500, 2,000 mg/kg of
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Fluoride & Goiter
Goitre (aka goiter) is an enlargement of the thyroid gland that in some cases can produce visible swelling in the neck. The main cause of goitre is iodine deficiency. Goitre can also be caused by other things, including hypothyroidism and substances that cause goitre (goitrogens). Since as far back as the
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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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Fluorine in the Aetiology of Endemic Goitre
The distribution of endemic goitre in the Punjab and in England is related to the geological distribution of fluorine and to the distribution of human dental fluorosis (mottled enamel). Inquiry showed the presence of dental fluorosis among school-children in two areas of Somerset where two previous observers had recorded a high incidence of goitre, and the absence of dental fluorosis in an adjoining area selected as control where endemic goitre was absent.
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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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