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Science News Archive August 2006 - Page 6


Page 6 of 15

Cooling analgesia harnessed to relieve chronic pain

Researchers have identified a protein called TRPM8 that mediates sensations of coolness and is expressed in nerve cells in the skin, responding to both cool temperatures and cooling chemicals like mint oil. This discovery has great potential for relieving chronic pain patients with approaches using cooling compounds

SourceCell Press·JournalCurrent Biology·DateAug 21, 2006

Researchers discover genetics markers to help predict risk for preterm birth

Two genetic markers, one associated with African American babies and the other with women with chronic hypertension, have been identified as potential predictors of preterm birth. The findings could lead to improved diagnosis, prevention, and treatment of preterm birth, reducing its risks for lifelong health complications.

SourceMarch of Dimes Foundation·JournalProceedings of the National Academy of Sciences·DateAug 21, 2006

Researcher hits bulls-eye for antibiotic target

A Purdue University researcher has determined the structure of a protein that controls starvation response in E. coli, which can be targeted to combat bacterial infections. The protein is found in numerous harmful bacteria and is an excellent antibiotic target due to its high processivity.

SourcePurdue University·JournalStructure·DateAug 21, 2006

Venous thrombosis after travel

A large study found that traveling for more than 4 hours increases the risk of venous thrombosis by 2-fold. High-risk groups, including those with factor V Leiden and oral contraceptives, have a significantly increased risk of thrombosis after air travel.

SourcePLOS·JournalPLOS Medicine·DateAug 21, 2006

Genetic variant is associated with higher rate of premature delivery in African-American women

A genetic variant in the SERPINH1 gene has been identified as a potential cause of premature delivery in African-American women. The variant reduces collagen production, making membranes more prone to rupture. This discovery may help physicians identify high-risk patients and prevent serious pregnancy complications.

SourceVirginia Commonwealth University·JournalProceedings of the National Academy of Sciences·DateAug 21, 2006

A new tool against brain disease

Researchers isolated a nerve toxin from an ocean-dwelling snail that may enable scientists to develop medications for a range of nervous system disorders. The new toxin fits like a key into specific lock-like receptors in the brain, opening up potential for designing new medicines.

SourceUniversity of Utah·JournalJournal of Biological Chemistry·DateAug 20, 2006

Anthrax detector developed

A team of researchers developed a new method to specifically recognize anthrax spores using monoclonal antibodies that target a unique sugar component called anthrose. This breakthrough offers a promising solution for rapid and accurate diagnosis, potentially reducing the risk of death from anthrax if treatment is delayed.

SourceWiley·JournalAngewandte Chemie·DateAug 18, 2006

Research paper illuminates how light pushes atoms

Kurt Gibble's paper analyzes the speed of an atom after absorbing a photon of light and shows that photons in narrow laser beams deliver less momentum than those in wide beams. This discovery has implications for atomic clocks, which use microwaves to achieve high accuracy, potentially allowing them to be even more precise.

JCI table of contents: August 17, 2006

Researchers discovered that phosphatase and tensin homolog (PTEN) regulates the proliferative capabilities of naturally occurring CD4+CD25+ Tregs but not their suppressive function. This finding provides a potential solution to harnessing the therapeutic potential of Tregs in autoimmune diseases.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 17, 2006

Why piglets shudder to keep warm

New research reveals that the UCP1 gene was inactivated 20 million years ago in pigs, causing them to lose the ability to use brown fat for body heat. As a result, piglets shudder to maintain their body temperature.

SourcePLOS·JournalPLOS Genetics·DateAug 17, 2006

Structure of key enzyme in plague bacterium found

Researchers at NIST determined the three-dimensional shape of class IV adenylyl cyclase, an enzyme found in plague bacteria Yersinia pestis. The unusual configuration may play a role in disrupting cell processes in infected hosts, highlighting the importance of molecular data for developing defenses against plague and other pathogens.

SourceNational Institute of Standards and Technology (NIST)·JournalJournal of Molecular Biology·DateAug 17, 2006

Hubble images some of galaxy's dimmest stars

Astronomers use Hubble Space Telescope to image two mysterious star types, including tiny, slow-burning stars and ancient, giant white dwarfs. The research pushes limits of observatory's capabilities, gathering data that will help refine theories about low-mass stars and the universe's age.

SourceRice University·JournalScience·DateAug 17, 2006

Some online video games found to promote 'sociability,' researchers say

Researchers Constance Steinkuehler and Dmitri Williams found that online video games like 'Asheron's Call' and 'Lineage' foster social interaction and relationships beyond the workplace and home. The games offer virtual third places for informal sociability, bridging social capital and broadening worldviews.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Computer-Mediated Communication·DateAug 17, 2006

All forms of tobacco exposure are bad for the heart

A recent study published in The Lancet found that all forms of tobacco exposure, including smoking, chewing, and second-hand smoke, increase the risk of heart attack. The study, which included data from over 27,000 people in 52 countries, showed that even low levels of tobacco exposure can double the risk of a heart attack.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 17, 2006