A genome wide search for genes underlying anxiety disorders turned up unexpected candidates
Increasing the activity of two enzymes better known for their role in oxidative stress metabolism turns normally relaxed mice into "Nervous Nellies," according to research conducted at the Salk Institute for Biological Studies and reported in the early online edition of Nature.
Hunger in America rises by 43 percent over last five years
Hunger in American households has risen by 43 percent over the last five years, according to an analysis of US Department of Agriculture (USDA) data released today. The analysis, completed by the Center on Hunger and Poverty at Brandeis University, shows that more than 7 million people have joined the ranks of the hungry since 1999. more
Household Food Security in the United States, 2004
Eighty-eight percent of American households were food secure throughout the entire year in 2004, meaning that they had access, at all times, to enough food for an active, healthy life for all household members. The remaining households were food insecure at least some time during that year. The prevalence of food insecurity rose from 11.2 percent of households in 2003 to 11.9 percent in 2004 and the prevalence of food insecurity with hunger rose from 3.5 percent to 3.9 percent. This report, based on data from the December 2004 food security survey, provides the most recent statistics on the food security of U.S. households, as well as on how much they spent for food and the extent to which food-insecure households participated in Federal and community food assistance programs. more
'Know thyself' — Easier said than done
Benjamin Franklin wrote in his 1750 Poor Richard's Almanac that "There are three things extremely hard: steel, a diamond, and to know one's self." The problem of achieving accurate self-knowledge hasn't gotten any easier in 250 years; and, as shown in a new research report, there are major real-world consequences to this very human attribute. more
MBL study shows how good cholesterol (HDLs) provide human immunity to certain parasites
For years biomedical researchers have known that high density lipoproteins, commonly called HDLs or "good cholesterol," are responsible for protecting humans from certain parasites, but couldn't explain how. Now MBL scientists have discovered that human HDLs work this bug-repelling magic by serving as a platform for the assembly and delivery of two naturally occurring proteins that combine to create a super-toxic antimicrobial. more
Study establishes link between air pollution, ischemic strokes
The risk of ischemic stroke – which results when a blood clot travels to the brain – increases with a rise in particulate air pollution, according to a study in Stroke: Journal of the American Heart Association. Led by researchers at Beth Israel Deaconess Medical Center (BIDMC) and the Harvard School of Public Health (HSPH), the findings are described in the October 27, 2005 on-line rapid access issue of the journal. more
What makes the brain tick, tick, tick. . .
The brain is a "time machine," assert Duke neuroscientists Catalin Buhusi and Warren Meck. And understanding how the brain tracks time is essential to understanding all its functions. The brain's internal clocks coordinate a vast array of activities from communicating, to orchestrating movement, to getting food, they said. more