Importance of iodine in pregnancy

Iodine is an essential constituent of thyroid hormones (TH). TH actively take part in critical periods of brain development during embryonic, fetal and postnatal stages. Therefore the absence of TH or iodine in these critical periods produces an irreversible brain damage. In fact, it is known that i...

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Published inArchivos latinoamericanos de nutrición Vol. 62; no. 3
Main Authors Carreto-Molina, Nicolás, García-Solís, Pablo, Juan Carlos Solís-S, Robles-Osorio, Ludivina, Hernández-Montiel, Hebert Luis, Vega-Malagón, Genaro
Format Journal Article
LanguageSpanish
Published Caracas José Féliz Chávez Pérez 01.07.2012
Subjects
Age
Fetuses
Hormones
Iodine
Laboratory animals
Nutrition
Physiology
Population
Pregnancy
Surveillance
Thyroid gland
Urine
Womens health
United States > US
Mexico
Switzerland
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Summary:Iodine is an essential constituent of thyroid hormones (TH). TH actively take part in critical periods of brain development during embryonic, fetal and postnatal stages. Therefore the absence of TH or iodine in these critical periods produces an irreversible brain damage. In fact, it is known that iodine deficiency is the leading cause of preventable brain damage worldwide. Because of the physiological adjustments during pregnancy iodine requirements increase significantly from 150 μg per day in non-pregnant adult women to 250 μg per day. Moreover, recent epidemiological studies around the world show that iodine intake during pregnancy is insufficient in many countries, even in developed countries like Australia, Spain and Italy. In the present work an overview of the importance of iodine nutrition during pregnancy is given. El yodo es un nutrimento constituyente indispensable de las hormonas tiroideas (HT). Las HT participan activamente en periodos críticos del desarrollo cerebral durante las etapas embrionaria, fetal y posnatal. Por lo tanto la ausencia o deficiencia de las HT o de yodo en estas etapas del desarrollo produce un daño cerebral irreversible. De hecho, se sabe que la deficiencia de yodo es la principal causa de daño cerebral prevenible en el mundo. Debido a los ajustes fisiológicos propios de la gestación los requerimientos de yodo se incrementan notablemente, pasando de 150 μg al día en la mujer adulta no gestante a 250 μg al día durante el embarazo. Por otra parte, estudios epidemiológicos recientes hechos en todo el mundo muestran que el consumo de yodo durante la gestación es insuficiente en varios países; incluso en países desarrollados como Australia y España e Italia. En la presente revisión se da un panorama general de la importancia del consumo adecuado de yodo durante la gestación.
ISSN:0004-0622
2309-5806