Brightsurf Science News & Current Events

March 29, 2009
Tea tree oil and silver together make more effective antiseptics
Mixing tea tree oil and silver or putting them in liposomes, greatly increases their antimicrobial activity and may minimize any side effects.

Genes that make bacteria make up their minds
How do single celled bacteria living as part of a complex community called a biofilm

Physicians mending broken hearts
Pediatric surgeons are able to repair complex heart defects with a survival rate of greater than 90 percent, but that doesn't necessarily mean a happy ending for these children and teens.

Targeted drug therapy prevents exercise-induced arrhythmias
Researchers report this week in Nature Medicine that the clinically available drug flecainide prevents potentially lethal arrhythmias in patients with a specific type of exercise or stress-induced arrhythmia disorder called CPVT.

Relaxin reduces cardiovascular mortality and shortness of breath in heart failure patients with normal-to-high blood pressure
A Phase II study has shown that the naturally occurring hormone relaxin reduces cardiovascular mortality and shortness of breath, and improves other clinical endpoints for heart failure patients with high blood pressure.

Mayo Clinic researchers discover and manipulate molecular interplay that moves cancer cells
Based on research that reveals new insight into mechanisms that allow invasive tumor cells to move, researchers at the Mayo Clinic campus in Florida have a new understanding about how to stop cancer from spreading.

Exercise intensity and duration linked to improved outcomes for heart failure patients
The level of exercise is linked with the reduction of hospitalization and death in patients with chronic heart failure, according to a Henry Ford Hospital study.

Enzyme and vitamin define the yin and yang of asthma
The allergen breathed in by a person with asthma triggers a proteinase or enzyme called MMP7 that activates a cascade of events to prompt an allergic reaction.

Slow-growing TB bacteria point the way to new drug development
The discovery of a large number of slow-growing Mycobacterium tuberculosis bacteria, which cause tuberculosis, in the lungs of TB patients could be an important step forward in the design of new anti-TB drugs.

Getting down to cancer basics
Researchers have identified a new cancer gene -- one that is common to many cancers and affects the most basic regulation of our genes.

Corrosion-inhibiting coatings containing 'good' bacteria
A new, environmentally friendly coating that protects metals against corrosion in seawater has been developed by a team of researchers from Sheffield Hallam University.

Skin cancer study uncovers new tumor suppressor gene
National Institutes of Health researchers have identified a gene that suppresses tumor growth in melanoma, the deadliest form of skin cancer.

Microbes in mud flats clean up oil spill chemicals
Micro-organisms occurring naturally in coastal mudflats have an essential role to play in cleaning up pollution by breaking down petrochemical residues.

Autism skews developing brain with synchronous motion and sound
Individuals with autism spectrum disorders tend to stare at people's mouths rather than their eyes.

Fish oils reduce greenhouse gas emissions from flatulent cows
Omega 3 fatty acids in fish oils can improve meat quality and reducing methane emissions in cows.

Action video games improve vision
Video games that involve high levels of action, such as first-person-shooter games, increase a player's real-world vision, according to research in today's Nature Neuroscience.

Dust may settle unanswered questions on Antarctica
Dust trapped deep in Antarctic ice sheets is helping scientists unravel details of past climate change.

DNA-based assembly line for precision nano-cluster construction
Building on the idea of using DNA to link up nanoparticles -- particles measuring mere billionths of a meter -- scientists at the US Department of Energy's Brookhaven National Laboratory have designed a molecular assembly line for predictable, high-precision nano-construction.

Improved predictive value of biomarkers in HF makes earlier diagnosis and better management possible
The use of biomarkers for identifying those at risk of cardiovascular mortality is now central to the management of patients with heart failure.

Poultry and diabetics at risk from gas gangrene bug
Gas gangrene, the notorious infectious disease of two world wars can still be a problem today.

Extra STICH not necessary in surgical treatment of heart failure
Results from the first comparative effectiveness study of two surgical treatments for heart failure will likely change practice for surgeons and cardiologists evaluating treatment options for some of their sickest patients, according to investigators in the Duke Clinical Research Institute.

New molecular force probe stretches molecules, atom by atom
Chemists at the University of Illinois have created a simple and inexpensive molecular technique that replaces an expensive atomic force microscope for studying what happens to small molecules when they are stretched or compressed.

Surgery to reshape ventricle in heart failure patients offers no added benefit over bypass
A type of surgery which reshapes the scarred left ventricle, the main pumping chamber of the heart, and is often done in conjunction with heart bypass, not only failed to reduce deaths and hospitalizations in heart failure patients but also did not improve patients' quality of life compared to bypass alone after four years of follow-up, according to the results of the Surgical Treatment for Ischemic Heart Failure Trial, a large international clinical trial.

Top scientist aims for more discoveries and improved speed to market
Slashing the time it takes for new medicines to reach consumers and improving scientific discovery in Australia are top of the agenda for leading biotechnology scientist Dr.

Transmission of drug-resistant HIV-1
Drug-resistant forms of HIV can be spread between individuals who have not received anti-retroviral treatment, according to Professor Deenan Pillay from University College, London and the Health Protection Agency, speaking at the Society for General Microbiology meeting at Harrogate Monday, March 30.

Superbug risk to war wounded
Soldiers who survive severe injuries on battlefields such as those in Iraq and Afghanistan can be at risk from developing infections of their wounds with multidrug resistant bacteria.

Decreasing markers of inflammation is as important for statin action as decreasing LDL cholesterol
A follow-up study on the JUPITER trial has revealed that a key component of the action of statins is reduction of high sensitivity c-reactive protein, a marker of inflammation, as well as reducing levels of bad cholesterol.

New high-throughput screening technique makes probing puzzling proteins possible
Understanding the tens of thousands of proteins that compose the human proteome has emerged as a key challenge of this century, and research efforts to date have already enabled major advances in drug discovery and understanding basic biology.

UM scientist's innovative current mapping satellite technique garners ONR grant
Working closely with UM's Center for Southeastern Tropical Advanced Remote Sensing, Dr.

Spreading antibiotics in the soil affects microbial ecosystems
Antibiotics used extensively in intensive livestock production may be having an adverse effect on agricultural soil ecosystems.
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