Brightsurf Science News & Current Events

November 07, 2004
Weight gain found to be harder on the heart than maintaining higher weight
Gaining 15 pounds or more over several years puts people at greater jeopardy of developing risk factors for heart disease than maintaining a stable weight - even a stable weight that is considered obese, according to a study authored by Donald Lloyd-Jones, M.D., a cardiologist at Northwestern Memorial Hospital.

Sexual competition drives evolution of a sex-related gene
Researchers have shown that when females are more promiscuous, males have to work harder -- at the genetic level, that is.

Virginia Tech, TIGR sign memorandum for new alliance
Virginia Tech President Charles Steger announced to the university's board of visitors today that the university and The Institute for Genomic Research (TIGR) of Rockville, Md., have signed a memorandum of understanding.

News tips for Sunday, November 7, 2004
To complement our news releases, here are additional news tips reported by the American Heart Association's Public and Media Relations from more than 3,600 abstracts.

Maintaining stable weight, even in the obese, reduces heart risks
Gaining 15 pounds or more over several years is the major contributor to progression of risk factors for heart disease and development of metabolic syndrome, while maintaining a stable weight -- even in individuals considered obese - significantly reduces those risks, according to a study led by a Northwestern University researcher.

Coronary stents do not improve long-term survival
While the placement of stents in newly reopened coronary arteries has been shown to reduce the need for repeat angioplasty procedures, researchers from the Duke Clinical Research Institute have found that stents have no impact on mortality over the long term.

'Painting' technique successfully transfers gene therapy to heart
In experiments with pigs, scientists at Johns Hopkins have successfully used a technique called

Air pollution may cause and speed up artery disease
Air pollution may trigger and accelerate narrowing of carotid arteries, according to a study presented at the American Heart Association's Scientific Sessions 2004.

Overweight men spend more on prescription drugs than normal-weight men
As middle-aged men's weight goes up, so do their monthly costs for prescription drugs to treat heart disease risk factors and weight-related conditions.

UCSD chemists use tiny 'chaperones' to direct molecules and nanoparticles in drop of liquid
Chemists at the University of California, San Diego have developed a method that uses dust-sized chips of silicon to surround and precisely direct the motion of molecules, cells, bacteria and other miniscule objects within a tiny drop of liquid. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to