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Science News Archive March 2005 - Page 14


Page 14 of 15

Fruit fly study points to treatment for fragile X syndrome

Researchers found that lithium-based drugs restored normal courtship behavior in mutant fruit flies with Fragile X syndrome, suggesting a potential new approach to treating the condition. The study also identified metabotropic glutamate receptor hyperactivity as a key contributor to the disease's symptoms.

SourceCell Press·JournalNeuron·DateMar 2, 2005

Gender a factor in who gets bypass surgery

A study found that women with heart conditions are less likely to receive bypass surgery due to conservative treatment decisions and biases. Women's mortality risk is often compared to men's, but the author argues that this perspective neglects the potential benefits of surgery for women with similar medical profiles.

SourceBlackwell Publishing Ltd.·JournalPsychology of Women Quarterly·DateMar 2, 2005

Surprise discovery of highly developed structure in the young universe

A team of astronomers has discovered a remote galaxy cluster that is as massive as several thousand galaxies like our Milky Way and is located 9,000 million light-years away. The cluster contains reddish and elliptical galaxies with old stars, indicating it formed when the Universe was less than one third of its present age.

SourceESO·JournalThe Astrophysical Journal Letters·DateMar 2, 2005

Mayo Clinic study sets threshold for valve repair surgery

A Mayo Clinic study establishes a threshold for valve repair surgery in patients with severe mitral regurgitation, indicating that those with large regurgitant orifice areas are at high risk of death if treated medically. The study suggests that valve surgery can restore normal life expectancy and reduce mortality by up to five times.

SourceMayo Clinic·JournalNew England Journal of Medicine·DateMar 2, 2005

$3.5 million for computer simulation of molecules

The University of Utah has received a $3.5 million grant from the Department of Defense's Office of Naval Research to develop cutting-edge computer simulation methods for describing chemical reactions in complicated molecular systems. This advancement will greatly expand the application of molecular simulation techniques to new scienti...

Brain tumor with dismal prognosis in infants can be cured in older children

St. Jude Children's Research Hospital finds that upfront treatment with radiation followed by chemotherapy can cure brain tumors in children over 3 years old, raising survival rates to 78% for two-year event-free survival and 89% for overall survival. The study shows promise for treating relapse cases using ICE chemotherapy.

SourceSt. Jude Children's Research Hospital·JournalJournal of Clinical Oncology·DateMar 2, 2005

UI study examines hazing on college campus

A UI study examining hazing on college campuses found that 6.7% of surveyed Cornell students participated in hazing, while nearly twice as many reported being hazed. The study suggests a gap between students' and universities' definitions of hazing, highlighting the need for education and prevention efforts.

SourceUniversity of Iowa·JournalAmerican Journal of Health Behavior·DateMar 1, 2005

Mount Sinai researchers identify key to controlling HIV

Researchers at Mount Sinai School of Medicine discovered that alpha-defensin-1, a protein found in cells, can directly inactivate HIV virus and block infection in vulnerable cells. The findings offer insight into the function of alpha-defensin-1 on both the virus and the cell, potentially leading to new avenues for prevention and therapy.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Clinical Investigation·DateMar 1, 2005

Boosting blood vessels with BDNF

Researchers found BDNF is as effective as VEGF in inducing growth of tiny blood vessels in organs with TrkB-expressing cells. It recruits blood stem cells that contribute to neo-angiogenesis, providing a novel therapeutic protein for organ-specific angiogenesis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 1, 2005

Licorice licks herpes virus infection

Researchers found that glycyrrhizic acid from licorice can kill cells infected with the Kaposi sarcoma-associated herpesvirus. The compound targets genes required to maintain the virus in a latent state, potentially leading to novel anti-herpesvirus agents.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 1, 2005

Spitzer Space Telescope finds bright infrared galaxies

A Cornell University-led team has discovered a mysterious population of distant galaxies radiating in the infrared spectrum with hundreds of times more power than our Milky Way galaxy. The galaxies are thought to be ultraluminous infrared galaxies powered by massive starbursts or active galactic nuclei, and their discovery is published...

SourceCornell University·JournalThe Astrophysical Journal Letters·DateMar 1, 2005

New treatment for inflammatory bowel disease

Researchers at University of California - San Diego have made a significant breakthrough in treating inflammatory bowel disease by discovering the molecular mechanism behind IFN-α/β therapy. The study reveals that activated IFN-α/β plays a protective role in colonic inflammation and maintains intestinal homeostasis.

SourceUniversity of California - San Diego·JournalJournal of Clinical Investigation·DateMar 1, 2005

Training could remove racial bias from police reactions

Researchers found that training designed to eliminate racial biases in police interactions can be effective in reducing biased reactions. The study used a simulation to test the impact of different approaches on officer behavior, and the results suggest that such training could lead to improved outcomes for all parties involved.

SourceBlackwell Publishing Ltd.·JournalPsychological Science·DateMar 1, 2005

A new route for treatment of IBD

Researchers found that TLR9-induced protection is mediated through type I IFN induction, which suppresses inflammation. Type I IFN has a protective role in colon injury and protects against colonic inflammation.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 1, 2005

Fewer false alarms when mammographers have greater experience screening healthy breasts

A study of over 1.2 million mammograms found that experienced physicians detected cancer with higher accuracy and had lower rates of false positives. The research suggests that raising the minimum annual volume requirements for qualified mammographers could improve the overall quality of screening mammography in the US.

SourceUniversity of California - San Francisco·JournalJNCI Journal of the National Cancer Institute·DateMar 1, 2005

'Smart' immune cells kill more cancer

Researchers at Johns Hopkins Medicine have developed a new method to educate T-cells in the bone marrow, increasing their ability to recognize and kill cancer cells. The approach shows promise for treating myeloma and potentially other blood and solid tumors.

SourceJohns Hopkins Medicine·JournalCancer Research·DateMar 1, 2005

Exercise tolerance is good screening test for chest pain patients

A Mayo Clinic study found that intermediate-risk patients with unstable angina who underwent exercise treadmill testing could be safely discharged from the emergency room without significant events. In contrast, those not eligible for testing were more likely to receive costly stress imaging and hospital admission.

SourceMayo Clinic·JournalMayo Clinic Proceedings·DateMar 1, 2005