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Gene May Be Linked to Dyslexia

Gap in Gene May Hinder the Brain's Normal Pathways for Reading

More Work Ahead

"There are a lot of dots to connect," says Gruen. "This is a first report," he says.

For instance, it's not certain if everyone with the DCDC2 gene gap will develop dyslexia.

"What is the predictive value of the test? We don't know," he says.

Some of the dyslexia patients who were studied didn't have the DCDC2 gene gap. But "a large number" did, says Gruen.

He notes that he and his colleagues also found 13 other variations on the DCDC2 gene. Those variations may also affect reading, but that's not yet certain, says Gruen.

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