Despite extensive cultivation and testing of GM foods, questions related to whether genetic manipulation causes changes in food quality and composition or if genetically modified foods are somehow less nutritious than their non-GM counterparts linger in the minds of some consumers. 

In research led by Owen Hoekenga, a Cornell University adjunct assistant professor, scientists extracted roughly 1,000 biochemicals, or "metabolites," from the fruit of tomatoes. These tomatoes had been genetically engineered to delay fruit ripening, a common technique to help keep fruits fresher longer. The researchers then compared this "metabolic profile" from the GM fruit to the profile of its non-GM variety.

Up to 7% of Americans married between 2005-2012 say they met on social networking sites. This has led to a rash of claims by marketing groups for dating sites that it is the future of romance and that more marriages happen to their technology. Between 3 and 6% of couples say they met that way.

But how much is technology a factor versus other factors? How do couples compare to couples who met through other types of online meetings or the "old-fashioned" way in terms of age, race, frequency of Internet use, and other factors? In an article on the subject, Jeffrey Hall, PhD, a communications scholar at University of Kansas, Lawrence, describes the characteristics that are more common among recently married individuals who met online via social networking sites. 

The mammalian heart has generally been considered to lack the ability to repair itself after injury, but a 2011 study in newborn mice challenged this view, providing evidence for complete regeneration after resection of 10% of the apex, the lowest part of the heart. In a study published by Cell Press in Stem Cell Reports on April 3, 2014, researchers attempted to replicate these recent findings but failed to uncover any evidence of complete heart regeneration in newborn mice that underwent apex resection.

Too little or too much of an enzyme called SRPK1 promotes cancer by disrupting a regulatory event critical for many fundamental cellular processes, including proliferation, according to a paper in Molecular Cell.

After playing in every game for some 14 years in baseball, Lou Gehrig of the New York Yankees - "The Iron Horse" - took himself out of the lineup because his manager wouldn't. He had been dropping balls, unable to get to routine plays, hitting in the low .100s, shuffling rather than running.

A month later he was diagnosed with the disease that would become synonymous with his name. That he had been able to do any sports at all, much less Major League Baseball, with amyotrophic lateral sclerosis
- ALS - is startling to doctors and patients today. Two years later he was dead but today, as many as 30,000 Americans are living with it.

Analyzing federal health care data, a team of researchers led by a Johns Hopkins specialist concluded that doctors overlook or discount the early signs of potentially disabling strokes in tens of thousands of American each year, a large number of them visitors to emergency rooms complaining of dizziness or headaches.

The findings from the medical records review, reported online April 3 in the journal Diagnosis, show that women, minorities and people under the age of 45 who have these symptoms of stroke were significantly more likely to be misdiagnosed in the week prior to sustaining a debilitating stroke. Younger people in the study were nearly seven times more likely to be given an incorrect diagnosis and sent home without treatment despite such symptoms.