"Trying to manage the stress and having social support may reduce the risk of mortality, " says Sareen, who has studied suicide risk and suicidal thoughts among cancer patients, but wasn't involved in the current study.

CNN: STORY HIGHLIGHTS

Registry studies such as the current one enable researchers to use accumulated data on the real-world experience of thousands of patients, but as the current study suggests, that doesn't necessarily resolve uncertainty over which treatment approach is better.

WSJ: Heart Bypass Surgery May Offer Lower Death Risk Than Angioplasty

Sigal co-authored an editorial accompanying the new study, but wasn't involved in the current research.

CNN: Weights plus walking equals more fit in less time

That is partly because the carrier rate for Tay-Sachs in the Irish population hasn't been scientifically proved, she says, adding that the current U.S. study is expected to provide data on the risk faced by people of Irish ancestry.

WSJ: New Study Looks at Irish Risk for Tay-Sachs Disease

Gary Landreth, one of the authors of Thursday's Science paper and a professor of neurosciences at Case Western Reserve University in Cleveland, said he expected to begin a safety study in 12 healthy patients next month, but there weren't any current plans for a larger clinical trial.

WSJ: Alzheimer's Families Clamor for Drug

Emily Amici may have a better understanding of business, but if she can't find a job in her field of study, she'll have to settle with her current position as a waitress until she does.

CNN: College students look to future with worry, hope