Tuesday, April 5, 2016

Placenta test for autism risk sparks serious concern

A new test claims to assess a child’s risk of autism based on abnormal folds in the placenta, and is being offered to pediatricians in the U.S. But with little evidence to support its use, experts say the test is premature and unethical.
Yale University researcher Harvey Kliman introduced the PlacentASD Test in 2013 as a tool to gauge a child’s risk of autism at birth, just months after publishing a study on placental folds.1
Already, he says, parents ship thousands of freshly delivered placentas to his lab each year, though he declines to say how many are analyzed for autism risk. Some reports indicate the test could cost upward of $2,000.
Autism experts are not impressed.
“I am truly appalled at the rush to market a test that has such weak predictive power to vulnerable families,” says Helen Tager-Flusberg, director of the Center for Autism Research Excellence at Boston University.
Researchers note that no other peer-reviewed reports have linked placental folds to childhood disorders, and none establish a firm link to autism. Kliman has also not yet confirmed autism diagnoses for children whose placentas he examined at birth.