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 Back to Eurekalert Medical and Health News Archives
Eurekalert Medical and Health News: 02-21-2005
On Feb. 21 at the annual meeting for the American Association for the Advancement of Science in Washington, D.C., Taylor will present his latest accomplishment: factoring in the flexibility of veins and arteries to his model of the cardiovascular system. The realistic response of blood vessels adds more predictive ability to earlier versions of his simulation, which assumed rigid vessel walls for simplicity.
If the developed world fails to invest more in African agriculture and rural infrastructure to benefit the poor, the world will become a much more dangerous place, Cornell University economist Per Pinstrup-Andersen will report at the 2005 Annual Meeting of the American Association for the Advancement of Science.
Prospects for a safe, effective AIDS vaccine are improving as researchers from the public and private sectors begin to collaborate in new and creative ways, researchers said today at the 2005 Annual Meeting of the American Association for the Advancement of Science (AAAS).
How do pollen particles provoke allergic reactions? A new study in the February 21 issue of The Journal of Experimental Medicine puts some of the blame on bioactive molecules that are released from pollen. These molecules bind to immune cells and cause them to launch a typical allergy-promoting immune response.
A form of beta blocker may provide the answer to preventing osteoporosis, said Baylor College of Medicine researcher Dr. Gerard Karsenty. In a report that appears online today in the journal Nature, Karsenty and his colleagues demonstrate in mice that the sympathetic nervous system mediates the resorption or destruction of bone through a special receptor on bone cells, and that this effect is required for the development of osteoporosis after menopause in mice.
A new technique developed at Georgia Tech can help reveal better ways to heal and regenerate bones using microcomputed tomography (micro-CT) imaging. The technique provides detailed 3-D images of both vascularization and mineralization in bone, giving researchers an unprecedented depth of data on how a bone implant is integrating into the body.
Researchers at Dana-Farber Cancer Institute in Boston have devised a mathematical tool that predicts how the frequency of mammograms affects the number of lives saved by detecting breast cancers at an earlier stage. With screening guidelines and financial coverage varying among health systems and insurers - sometimes dramatically - the model provides quantitative predictions of the mortality benefits, on average, in populations of women over the course of 40 years.
Air pollution, and especially particulate matter, thickens the blood and boosts inflammation, finds experimental research in Occupational and Environmental Medicine.
Regular users of cannabis could be putting themselves at risk of stroke, while they are still young, indicates a case report, published in the Journal of Neurology Neurosurgery and Psychiatry.
Slow growth in the year after birth seems to signal poor economic prospects as an adult, suggests a study of 50 year old men in Archives of Disease in Childhood.
Severely hyperactive children are three times more likely to be removed from their families, because their parents can no longer cope, than children with other mental health or behavioural problems, reveals research in Archives of Disease in Childhood.
Thanks to a handful of very special mice, scientists have discovered a new tumor suppressor gene and a unique chemical signature implicated in the development of human leukemia, findings that open up a "treasure box" of opportunity and possibility, study authors say. Researchers bred a type of mouse that develops acute lymphoblastic leukemia (ALL).
New biomolecular technologies have largely failed to deliver the hoped-for knockout punch breakthrough against the defences of disease-causing bacteria, says a leading Canadian specialist in antibiotic resistance.
When scientists created clones between common carp and goldfish, the offspring appeared virtually identical to the species that provided the nucleus, but the cloned fish possessed the same number of vertebrae as the species that provided the enucleated egg cytoplasm. This suggests that the egg cytoplasm, and not the genetic code of the transplanted nucleus, influenced the body segmentation of the cloned offspring.
Scientists have a pretty good handle on how to teach human cells to do tricks in a laboratory -- things like getting soft cells from the mouth's lining to form bone.
New research offers dramatic evidence of how psychiatric disorders are underdiagnosed in hospital emergency departments, affecting an increasing number of Americans who rely on such facilities for much of their primary health care needs.
Duke University Medical Center researchers have found that joints whose cartilage lacks a specific type of collagen will develop osteoarthritis - the so-called "wear-and-tear" form of the disease - at a greatly accelerated rate.
Research from Georgia Tech/ Emory University reveals that new combination medical devices may have potential immune complications, but findings could help with design solutions.
Although predicting el Nino events months before they begin has become a major success story in climate prediction, a Duke University oceanographer who did early research in the field believes more could be done with the computer and satellite technology underlying these advances.
Young adults can be motivated to eat more servings of fruits and vegetables if they are exposed to tailored, practical messages about nutrition, a University of Wisconsin-Madison nutritional scientist announced today (Feb. 20) at the annual meeting of the American Association for the Advancement of Science (AAAS).
According to Jonathan A. Patz, as the world's climate warms, and as people make widespread alterations to the global landscape, human populations will become far more vulnerable to heat-related mortality, air pollution-related illnesses, infectious diseases and malnutrition.
As the world's synchrotrons move towards ever larger facilities to increase output, MIRRORCLE-6X has taken a giant step forward by moving backwards. Comparable in some ways to much larger synchrotrons, MIRRORCLE-6X occupies only a few square meters of floor space.
A transplant is the only option for someone with end-stage liver disease, but the patient faces difficult questions when choosing the best time to receive the transplant. Today, in a panel discussion at the 2005 American Association for the Advancement of Science (AAAS) Annual Meeting in Washington, D.C., University of Pittsburgh researcher Andrew Schaefer will present findings on how his mathematical models can help a patient make the right decision.
Using genetics, Navy sonar, deep-sea submersibles, and toxicology, scientists are peering into the lives of whales - past and present - in ways never before possible. At a 3:00 PM press conference on February 19th at the annual meeting of AAAS, leading researchers will share their latest discoveries emerging from these high tech ventures, using DNA sequences, deep-sea video and sound-clips.
AAAS/Sea Grant Panel will take place on Feb 20, 2005 entitled "Transcending Boundaries: Challenges for Holistic Restoration in the Chesapeake Watershed." A panel of scientifiic experts addresses the issue of why the two-decade old Chesapeake Bay restoration effort has not yet met expectations and details the adaptive management approach required to achieve concrete results on the ground.
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