Abstract

In 4 settlements in Israel girls, 2685 in all and aged 7 to 18 years included 17, 30, 4.7 and 2.6% with goitre. In the corresponding water supplies I was, <2, 4 5 to 65, 8 to 100 and 20 µg and F, <0.1, 0 to 0.3, 0.65 to 0.9 and 0.3 mg per litre. F did not appear to affect thyroid function. For earlier work see Abst. 4185, Vol. 31. A. Hepburn.

• Related Studies :

  • [Fluorization of the waters in Czechoslovakia. IV. Endocrinological control of results of two years' fluorization of drinking-water in school children]

    No abstract available

  • 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,

  • 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

  • Effect of excessive green tea versus fluoride and caffeine on body weight and serum thyroid hormones in male mice

    Green tea is a worldwide used beverage rich in fluoride and caffeine. To study the effect of excessive green tea intake versus fluoride and caffeine on body weight and serum thyroid hormones in male mice. Also, to confirm the effect of excessive green tea intake on thyroid gland was due

  • The synergistic action of thyroid on fluoride toxicity

    Control rats on the basic diets employed developed normal or nearly normal incisor teeth. Rats on the same basic diets to which dried thyroid had been added developed incisor teeth that were markedly bleached due to a potentiation of the toxic action of the fluorine in the basic diet. Subcutaneous

• Related FAN Content :

  • 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.

  • 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

  • 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.

  • 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

  • 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.