Understanding Prenatal Iodine Deficiency
نویسندگان
چکیده
Iodine is a micronutrient essential for the synthesis of thyroid hormones1. The thyroid gland takes iodine from the diet, stores it and subsequently incorporates it into other molecules, to produce two types of thyroid hormones as a final product: triiodothyronine (T3) and thyroxine (T4) containing three and four iodine atoms respectively. Both circulate in blood bound to proteins and act on specific receptors. The free T3 is metabolically more active, but the T4 is, as we shall see, indispensable at specific developmental stages.
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Iodine content of prenatal multivitamins in the United States.
To the Editor: Normal thyroid function in fetuses and breast-fed infants, which is dependent on sufficient maternal dietary intake of iodine, is crucial for normal neurocognitive development.1 Children of mothers with severe iodine deficiency may have cretinism. Iodine deficiency affects more than 2.2 billion persons (38% of the world’s population) and is the leading cause of preventable mental...
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21 Iodine is a key component of the thyroid hormones which are crucial for brain development. 22 Pregnant women are vulnerable to iodine deficiency because their requirement for iodine is 23 higher than that of non-pregnant adults. Data on the iodine status of UK pregnant women are 24 sparse and there are no such data in the South East. One hundred pregnant women were recruited 25 to a cross-se...
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متن کاملIodine deficiency in pregnant women living in the South East of the UK: the influence of diet and nutritional supplements on iodine status.
Iodine is a key component of the thyroid hormones which are crucial for brain development. Adequate intake of iodine in pregnancy is important as in utero deficiency may have lifelong consequences for the offspring. Data on the iodine status of UK pregnant women are sparse, and there are no such data for pregnant women in the South East of the UK. A total of 100 pregnant women were recruited to...
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