Abstract
A number of cases of goiter have been reported from Ban Mae Toen (BMT) northwestern Thailand, therefore we carried out this study to evaluate the prevalence and severity of goiter in BMT. We suspected fluoride toxicity as a factor in this phenomenon, therefore we used a WHO model using photographs to carry out a non-medical survey for teeth discoloration and limb deformity at the same time as the goiter survey. Every resident of BMT and a sampled population from two nearby control villages were surveyed in 2007. The overall prevalence of goiter among both sexes was 11%; 20% in women and 3% in men. No cases of goiter were recognised in the two control villages. Twenty-four percent of the BMT population and 5% of the sampled population of the control villages had lower limb deformities. Sixty-three percent of the BMT population had discoloration of teeth, especially among those >35 years old. The control villages had significantly (p<0.01) fewer cases of discoloration of teeth than the BMT population. The morbidity seen in Ban Mae Toen suggests the need for urgent enquiry into the etiology of this morbidity.
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[Incidence of goiter in pubertal girls of the Piotrków Region and the iodide content in drinking water].
No abstract available
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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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Assessment of iodine status in children, adults, pregnant women and lactating women in iodine-replete areas of China
BACKGROUND: Iodine deficiency disorders (IDD) are widespread in China. Presently, IDD have been put under control by Universal Salt Iodisation (USI) in China; however, there is a lack of evidence on whether the iodine status in adults, pregnant women and lactating women is optimal. This study was therefore conducted to assess
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Fluorine and thyroid gland function: a review of the literature
The increasing use of fluoride for prevention of dental caries poses the problem as to whether this halogen has antagonistic properties towards iodine, whereby it could hamper the success of iodine prophylaxis of endemic goitre. Review of the literature shows that some authors have found an inhibition by fluoride of
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Goitre and Fluorosis in Kenya
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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, 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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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 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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