Sunday, July 18, 2010

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Remarkable fossil cave shows how ancient marsupials grew

Posted: 18 Jul 2010 05:00 PM PDT

The discovery of a remarkable 15-million-year-old Australian fossil limestone cave packed with even older animal bones has revealed almost the entire life cycle of a large prehistoric marsupial, from suckling young in the pouch still cutting their milk teeth to elderly adults.

Researchers find way to make cancer cells more mortal

Posted: 18 Jul 2010 05:00 PM PDT

Researchers have discovered a way to help cancer cells age and die, creating a promising avenue for slowing and even stopping the growth of tumors.

Novel microfluidic HIV test is quick and cheap

Posted: 18 Jul 2010 05:00 PM PDT

Biomedical engineers have developed a "lab on a chip" device for HIV testing. The test integrates an antibody microarray with a lensfree holographic imaging device that takes only seconds to count the number of captured T-cells and amount of secreted cytokine molecules. The test returns results six to 12 times faster than traditional approaches and tests six parameters simultaneously, based on a small blood sample.

Anti-cancer effects of broccoli ingredient explained

Posted: 18 Jul 2010 05:00 PM PDT

Light has been cast on the interaction between broccoli consumption and reduced prostate cancer risk. Researchers have found that sulforaphane, a chemical found in broccoli, interacts with cells lacking a gene called PTEN to reduce the chances of prostate cancer developing.

Fungi's role in the cycle of life discovered

Posted: 18 Jul 2010 05:00 PM PDT

The nitrogen cycle is the natural process that makes nitrogen available to all organisms on earth. Scientists have discovered that one of the world's most common and ecologically important groups of fungi plays an unsuspected role in this key natural cycle.

Making virtopsies a reality: New research project to develop reliable and cost-effective virtual autopsies

Posted: 18 Jul 2010 05:00 PM PDT

A new research project is set to play a vital role in continuing research into viable alternatives to invasive autopsies, which many families find to be unpleasant.

How memory is disrupted in those with disease linked to learning disabilities

Posted: 18 Jul 2010 11:00 AM PDT

Imagine if your brain lost its working memory -- the ability to hold and manipulate information in your mind's eye. That's the plight faced by millions of people with neurofibromatosis type 1, or NF1. Now a UCLA research team has uncovered new clues about how NF1 disrupts working memory. Their findings suggest a potential drug target for correcting NF1-related learning disabilities.

Are teen binge drinkers risking future osteoporosis?

Posted: 18 Jul 2010 11:00 AM PDT

Binge-drinking teenagers may be putting themselves at risk for future osteoporosis and bone fractures, according to new research.

Concentration, timing and interactions are key when it comes to dietary compounds

Posted: 18 Jul 2010 11:00 AM PDT

Chemists who specializes in cancer prevention research have reported evidence that for some dietary compounds, length of exposure over time may be key to whether or not ingestion leads to a beneficial, or detrimental, effect.

New recommendations issued for use of cetuximab in colon cancer therapy

Posted: 18 Jul 2010 11:00 AM PDT

New recommendations on the use of the drug cetuximab have been issued after officials halted enrollment in a phase III clinical trial in patients with spread of colon cancer into regional lymph nodes whose tumors had been surgically removed. ongoing analysis during the clinical trial found that patients receiving the combination therapy had no significant improvement in survival compared to standard therapy.

Cell signaling classification system gives researchers new tool

Posted: 18 Jul 2010 11:00 AM PDT

Using ever-growing genome data, scientists are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting important cellular functions that will impact both medical and biotechnology research.

Secret to sniffing out a safe supper

Posted: 18 Jul 2010 11:00 AM PDT

When mice smell the scent of food on the breath of their fellow mice, they use that experience to decide what's safe to eat in the future. Key in that learning process is the pairing of a particular odor with a chemical ingredient found in mouse breath, scientists knew. What they didn't know was how mice manage to sniff that connection out. According to new study, now they do.

Universal flu vaccine moving closer

Posted: 18 Jul 2010 05:00 AM PDT

A universal influenza vaccine -- so-called because it could potentially provide protection from all flu strains for decades -- may become a reality.

Scientists identify molecular predictor of prognosis for pancreatic cancer patients

Posted: 18 Jul 2010 05:00 AM PDT

Pancreatic cancer is one of the most challenging tumors to treat. Identifying patients who have more aggressive disease could better inform treatment decisions and predict survival prognosis. A new finding may help.

Scientists Mount a 'Sting Operation' in Thailand to Tackle a Devastating Pest Outbreak

Posted: 18 Jul 2010 05:00 AM PDT

In the start of a carefully crafted emergency campaign to thwart a pest outbreak that is wreaking havoc on Thailand's vital cassava production, agricultural researchers will release a quarter of a million parasitic wasps in the northeastern part of the country.

Does the existing standard of care supply energy sources to brain tumor cells?

Posted: 18 Jul 2010 05:00 AM PDT

Examining a decade's worth of research, biochemists report that the medical standard of care for the most common form of brain cancer may actually feed tumor cells the energy sources they need to survive or recur.

New potential biocontrol for skunk vine identified

Posted: 18 Jul 2010 05:00 AM PDT

A new beetle that could be used to control the invasive weed skunk vine has been identified.

Researchers envision better disease surveillance to improve public health

Posted: 18 Jul 2010 05:00 AM PDT

With current public health threats ranging from swine flu to bioterrorism to environmental contamination, innovations that better predict disease outbreaks have vast potential to protect the public. Researchers describe their vision for the future of disease surveillance, detailing innovations on the horizon that may facilitate earlier detection and improved public health preparedness.

More research needed to verify effectiveness of ACL and knee injury prevention programs, study says

Posted: 16 Jul 2010 09:00 PM PDT

The jury is still out on the effectiveness of prevention programs for knee injuries in young athletes, according to a new study. Better designed research studies are needed before it can be determined that ACL and knee injuries can be prevented with specialized training programs, the study noted.

Simple, accurate in-office tool predicts athletes at high-risk for ACL injury, study details

Posted: 16 Jul 2010 09:00 PM PDT

Previously, determining athletes at high-risk for ACL (anterior cruciate ligament) injuries required expensive and complex laboratory-based motion analysis systems, such as those used in creating video games. But a new study offers physicians a low-cost, in-office, tool to help identify athletes at increased risk.

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