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Endemic goiter associated with high iodine intake in primary school children in the Saharawi Arab Democratic Republic.
The high prevalence of goiter in Saharan children visiting Asturias in the summer prompted us to study the problem in greater depth. Neck palpation was performed in a sample of 570 school children from the Saharawi Arab Democratic Republic. Weight, height, T4, thyroid-stimulating hormone and anti-thyroperoxidase antibodies in capillary blood were
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Fluoride and thyroid function in children in two villages in China
Eighty two children, aged 8 - 13 years old, from Wamiao village (severe endemic fluorosis area), from Xinhuai village (nonendemic fluorosis area) were 88 (as a control group), were recruited in this study. The prevalence of dental fluorosis (DF) were 85.37% (Wamiao) and 6.82% (Xinhuai) in two village’s children respectively;
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Effects of fluoride on metamorphosis, thyroid and skeletal development in Bufo gargarizans tadpoles
This study examined the effects of chronic fluoride exposure on metamorphosis, thyroid and skeletal development in tadpoles of Chinese Toad, Bufo gargarizans. The tadpoles were exposed to fluoride concentrations either at 0, 1, 5, 10, or at 50 mg L(-1) from Gosner stage 26 to Gosner stage 42. Body weight,
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Synergistic action of iodine-deficiency and fluorine-intoxication on rat thyroid.
212 Wistar rats were divided randomly into five groups, each of which was fed on one of the following regimes: (1) Normal iodine and fluorine; (2) normal iodine, 10 ppm fluorine; (3) normal iodine, 30 ppm fluorine; (4) now iodine, normal fluorine; (5) low iodine, 10 ppm fluorine. The experiment
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A comparative study of fluoride ingestion levels, serum thyroid hormone & TSH level derangements, dental fluorosis status among school children from endemic and non-endemic fluorosis areas
The study was undertaken to determine serum/urinary fluoride status and comparison of free T4, free T3 and thyroid stimulating hormone levels of 8 to 15 years old children with and without dental fluorosis living in an endemic and non-endemic fluorosis area. A sample group of 60 male and female school children,
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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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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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Fluoride Exposure Aggravates the Impact of Iodine Deficiency
A consistent body of animal and human research shows that fluoride exposure worsens the impact of an iodine deficiency. Iodine is the basic building block of the T3 and T4 hormones and thus an adequate iodine intake is essential for the proper functioning of the thyroid gland. When iodine intake is inadequate during infancy and
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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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