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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Prevalence and manifestations of water-born fluorosis among schoolchildren in Kaiwara village of India: a preliminary study
Background: Fluorosis is an endemic condition with prevalence in 19 states and union territories in India. It is an urgent task to survey the fluorosis-related problems in these regions. Objective: To study the clinical manifestations of water-born fluorosis among schoolchildren in Kaiwara village of India. Methods: A cross-sectional study was conducted in
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Role of nitric oxide and vascular endothelial growth factor in fluoride-induced goitrogenesis in rats
Endemic fluorosis is a serious problem in public health. Previous studies have indicated that patients with thyroid goiters usually live in fluoride-affected areas. However, the mechanism of goitrogenesis caused independently by fluoride is still unclear. The principle objective of this study was to investigate the possible roles of nitric oxide
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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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A survey of goiter morbidity in Ban Mae Toen, northwest Thailand.
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
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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 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 & 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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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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