Link found between autism and exposure to lead in fetus

Link found between autism and exposure to lead in fetus

Exposure to metals and substances like lead in the womb, would affect the risk to as a child autism to develop.

Whether this is due to the exposure of the substances or the way they are recorded, know the scientists are still not sure.

According to research in Nature Communications. For the study, the baby teeth of 16 pairs of monozygotic and dizygotic twins examined, of whom at least one of the two at the age of 18 a autismediagnose had received.

For comparison, examined the scientists also babytanden of 22 twinning that no autismediagnose had.

Because approximately every week a new tandlaag is formed during the development of the fetus in the womb and later in childhood, scientists can even at a later age still see exactly what chemicals the teeth have ever been exposed.


The research team found a significant difference in metaalopname between twins with autism and their healthy tweelingbroertjes or sisters.

In the late pregnancy and first few months after birth, names of children with autism much more lead – a toxic substance – on. On the other hand, they took less of their essential resources as magnesium and zinc. The number of toxic metals in the teeth of children, which even the severity of autism can demonstrate, say the researchers.

Too early

The scientists do not know whether the differences in the number of toxic metals and nutrients in the teeth has to do with how much a fetus or child is exposed to or how they are the products to include.

“Our research is an important step towards the understanding of risk factors regarding autism, such as exposure to contaminants, and nutritional deficiencies”, says principal investigator dr. Arora know to Reuters. “It is still too early to make clinical recommendations based on this research.”

Follow us

Don't be shy, get in touch. We love meeting interesting people and making new friends.

Most popular