Results of a small clinical trial suggest that a chemical
derived1 from
broccoli2 sprouts3 -- and best known for claims that it can help prevent certain cancers -- may ease classic behavioral symptoms in those with autism
spectrum4 disorders5 (ASDs). The study, a
joint6 effort by scientists at MassGeneral Hospital for Children and the Johns Hopkins University School of Medicine, involved 40 teenage boys and young men, ages 13 to 27, with moderate to severe autism.
In a report published online in the journal
Proceedings7 of the National Academy of Sciences during the week of Oct. 13, the researchers say that many of those who received a daily dose of the chemical sulforaphane experienced substantial improvements in their social interaction and verbal communication, along with decreases in repetitive, ritualistic behaviors, compared to those who received a
placebo8.
"We believe that this may be preliminary evidence for the first treatment for autism that improves symptoms by
apparently9 correcting some of the
underlying10 cellular11 problems," says Paul Talalay, M.D., professor of pharmacology and
molecular12 sciences, who has researched these vegetable compounds for the past 25 years.
"We are far from being able to declare a victory over autism, but this gives us important insights into what might help," says co-investigator Andrew Zimmerman, M.D., now a professor of pediatric neurology at UMass Memorial Medical Center.
ASD experts estimate that the group of disorders affects 1 to 2 percent of the world's population, with a much higher incidence in boys than girls. Its behavioral symptoms, such as poor social interaction and verbal communication, are well known and were first described 70 years ago by Leo Kanner, M.D., the
founder13 of pediatric
psychiatry14 at The Johns Hopkins University.