WBUR Newsroom Election 2008 CommonHealth Blog Radio Boston Blog Boston Weather Climate Connections BBC World News NPR Top Stories NPR's Morning Edition NPR Topics: Books NPR Topics: Movies Fresh Air All Things Considered Marketplace Submit a News Tip RSS Feeds Podcasts Advances in Autism Research By Deb Becker Listen to story (Real Audio) Image of "Fragile X' chromosome. BOSTON, Mass. - June 26, 2007 - Researchers at the Massachusetts Institute of Technology have succeeded in reversing the symptoms of mental retardation and autism in mice. The scientists think that inhibiting a certain enzyme in the brain could also work in children to counteract what's known as "Fragile X Syndrome." That's considered the leading inherited cause of mental retardation and the most common genetic cause of autism. Nobel prize-winning biology and neuroscience professor Susumu Tonegawa is a co-author of the study at MIT's Picower Institute for Learning and Memory, and joins WBUR's Deborah Becker to discuss the apparent breakthrough. RELATED LINKS MIT's research on "Fragile X Syndrome," as published in the 'Proceedings of the National Academy of Sciences" MIT's Picower Institute for Learning and Memory. The National Fragile X Foundation One Mother's experience with the disorder    From The WBUR Newsroom State Street May Pay for Risky Investments BOSTON, Mass. (May 09, 2008) Boston-based State Street Corporation may end up paying far more than it's prepared for over its involvement in the sub-prime mortgage crash. State Rejects Home Insurance Hike BOSTON (May 09, 2008) State officials have rejected a plan by the state's home insurer of last resort to hike premiums by about 13 percent. Speculation Over Speaker DiMasi BOSTON, Mass. (May 09, 2008) Amid ethics questions and as some lawmakers jockey for his job, House Speaker Sal DiMasi is keeping a low profile at the State House. We'll report on the speculation over his leadership. Lacrosse v Baseball BOSTON, Mass. (May 08, 2008) In the heart of Red Sox Nation, many high school baseball players are switching to another sport instead. We report on the explosive growth of lacrosse, by almost 60 percent in the last six years.