HOUSTON, Texas - A study published in the August issue of The Annals of Neurology could be a possible breakthrough in narrowing the causes of autism.
"I think for the first time we have the possibility of finding an explanation of the problem but most importantly we have a way of preventing this from happening," said Dr. Gustavo Roman, a neurologist with the Houston Methodist Neurological Institute.
Roman worked with the researchers in the Netherlands studying thousands of pregnant Dutch women and found a lack of iodine in their diets affected fetal brain development.
"The studies showed that when the mothers had very low levels of thyroid hormone early in pregnancy the chance of having a kid with autism was multiplied by 4 very seldom we see these strength of association," said Dr. Roman.
The most common cause of thyroid hormone deficiency is the lack of iodine in the diet.
Since the popularity of iodized salt, one in seven Americans is believed to be iodine deficient.
"I think it's very important that women of reproductive age measure the amount of iodine in the urine it's a very simple test and if the levels are low they need to go back to using iodized salt to prevent this from happening," said Dr. Roman
Along with a thyroid check, Dr. Roman encourages women who are pregnant or who are trying to get pregnant to take prenatal vitamins that contain iodine.
Thyroid hormone deficiency also has been linked to other complications with pregnancy including hemorrhaging, premature labor and high rates of fetal loss.
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