Replacing old blood with new increases the odds for survival

“New blood” can revitalize a company or a sports team. Recent research by Tel Aviv University finds that young blood does a body good as well, especially when it comes to fighting cancer. more  

Risk takers, drug abusers driven by decreased ability to process dopamine

For risk-takers and impulsive people, New Year's resolutions often include being more careful, spending more frugally and cutting back on dangerous behavior, such as drug use. But new research from Vanderbilt finds that these individuals--labeled as novelty seekers by psychologists--face an uphill battle in keeping their New Year's resolutions due to the way their brains process dopamine. The research reveals that novelty seekers have less of a particular type of dopamine receptor, which may lead them to seek out novel and exciting experiences--such as spending lavishly, taking risks and partying like there's no tomorrow. more

Researchers at Columbia University Medical Center link blood sugar to normal cognitive aging

Maintaining blood sugar levels, even in the absence of disease, may be an important strategy for preserving cognitive health, suggests a study published by researchers at Columbia University Medical Center (CUMC). The study appeared in the December issue of Annals of Neurology. more  

Acute gastric injury due to high-dose analgesics?

Analgesics, NSAIDs and acetaminophen, are commonly used for the relief of fever, headaches, and other minor aches and pains. The gastrointestinal side effects of NSAIDs are well documented and acetaminophen is accepted to be a safe drug for the gastrointestinal system. Acute effects of short-term, especially high-dose NSAID and acetaminophen use have not been studied adequately. more

Scientists isolate genes that made 1918 flu lethal  

By mixing and matching a contemporary flu virus with the "Spanish flu" — a virus that killed between 20 and 50 million people 90 years ago in history's most devastating outbreak of infectious disease — researchers have identified a set of three genes that helped underpin the extraordinary virulence of the 1918 virus. more

New tool developed to predict colorectal cancer risk 

A new online tool for calculating colorectal cancer risk in men and women age 50 or older was launched today, based on a new risk-assessment model developed by researchers at the National Cancer Institute (NCI), part of the National Institutes of Health. This new tool may assist health care providers and their patients in making informed choices about when and how to screen for colorectal cancer and can be used in designing colorectal cancer screening and prevention trials. An article describing the new risk-assessment model and a second article describing its validation appear online December 29, 2008, in the Journal of Clinical Oncology. more

Researchers derive first embryonic stem cells from rats

Researchers at the University of Southern California (USC) have, for the first time in history, derived authentic embryonic stem (ES) cells from rats. This breakthrough finding will enable scientists to create far more effective animal models for the study of a range of human diseases. more

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