In the News
Surprising New Species Of Light-harvesting Bacterium Discovered In Yel
In the hot springs of Yellowstone National Park, researchers have discovered a novel chlorophyll-producing bacterium that transforms light into chemical energy. The researchers also discovered that the new genus and species belongs to a new phylum, Acidobacteria -- only the third time in the past 100 years that a new bacterial phylum has been added to the list of those with chlorophyll-producing members, of which there are now only six. Hurricane Katrina
Information about emergency medical shelters, volunteer opportunities for health care professionals, and other services provided by the U.S. Department of Health and Human Services (HHS) in the aftermath of Hurricane Katrina. Also find links to tips about hurricane preparedness. Freedom Flight: Black South African Kid's Homemade Paraglider Leads to
South African Cyril Mazibuko is a professional paraglider, one of the few black practitioners of a predominantly white sport. After seeing gliders in the air as a kid, he makes a glider out of plastic bags and baling wire, catches the attention of the pros, and flies in the face of apartheid. [Funny] A referee has sent himself off in an English amateur league ma
Andy Wain had to abandon the Sunday league match between Peterborough North End and a Royal Mail side in the 63rd minute after throwing down his whistle and marching up to confront North End's keeper. New Review Adds More Reasons To Avoid Diabetes Drug Avandia
Little evidence supports using rosiglitazone (Avandia) to improve the quality or length of life among adults with diabetes, according to a systematic review of data by German researchers. NASA's Spitzer Captures Echo Of Dead Star's Rumblings
An enormous light echo etched in the sky by a fitful dead star was spotted by the infrared eyes of NASA's Spitzer Space Telescope. The surprising finding indicates Cassiopeia A, the remnant of a star that died in a supernova explosion 325 years ago, is not resting peacefully. Instead, this dead star likely shot out at least one burst of energy as recently as 50 years ago. Old T Cells Cripple Immune Function In The Elderly
T cells are the weakest link in the immune systems of older people, based on a report by Eaton and colleagues in the December 20 issue of The Journal of Experimental Medicine. The authors show that old CD4 "helper"T cells cannot provide the stimulatory signals to B cells that prompt them to make antibodies. Old and young B cells, however, are equally effective if helped by young CD4 T cells. The authors think this may help explain why immunizations are less effective in the elderly. Health Symptoms Aren't Linked To Cell Phone Tower Emissions, Study Fin
One of the largest studies into the short-term health effects of mobile phone technology has found that reported symptoms such as anxiety, tension and tiredness are not caused by the typical emissions from cell phone towers. Culture Influences Brain Cells: Brain's Mirror Neurons Swayed By Ethni
The brain's mirror neuron network responds differently depending on whether we are looking at someone who shares our culture, or someone who doesn't. Energy Management In Cells May Hold Key To Cancer Defense
In an ongoing effort to fight disease by manipulating energy regulation of cells, a collaborative study led by Dartmouth Medical School (DMS) has demonstrated that cells lacking a tumor-suppressing kinase called LKB1 can still maintain healthy energy levels when they become stressed. This energy regulation is essential for keeping cells from dying off too quickly. The study's results could signal new advances for combating cancerous tumor growth, but also type 2 diabetes and obesity.
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