Innovative 3D-imaging Technique Captures Brain Damage Linked To Alzheimer's Disease
MRI Predicts Liver Fibrosis, Study Says
Using an advanced three-dimensional mapping technique medical researchers analyzed magnetic resonance imaging data from 24 patients with amnestic mild cognitive impairment and 25 others with mild Alzheimer's disease. The research team found that patients with mild Alzheimer's had 10 to 20 percent more atrophy in most cortical areas than did MCI patients.
New Screening Method May Identify Tumor Viruses
Moderate to severe chronic liver disease can be predicted with the use of diffusion-weighted MRI. A recent study showed that hepatic ADC was a significant predictor of stage 2 or greater and stage 3 or greater liver fibrosis.
Newly Qualified Doctors Feel Well Prepared By Medical School
For the first time, a new screening method shows promise for identifying new human tumor viruses, as well as determining which cancers are caused by infection and which are not. Statistics now show that infection contributes to over 20% of human cancers worldwide. Presently, the list of confirmed carcinogenic infectious agents is short, however studies suggest that new infectious agents yet to be identified contribute to a wide range of diseases, including cancers.
PET/CT Combination Can Highly Increase Detection Of Colorectal Cancer
Compared to 2000, significantly more newly qualified doctors believe that their medical school training prepares them well for their first clinical posts, according to new research.
Positioning Pelvic Cancer Patients On Stomachs For Radiation Yields Better Results
Colorectal cancer is currently the most common gastrointestinal malignancy. Recurrence and/or metastasis occurs in 30 to 50 percent of patients after surgery. Early diagnosis and accurate staging of postoperative recurrence and metastasis is crucial for prescribing an optimal, individualized treatment plan. Research performed in China by Dr. Chen has found that combined positron emission tomography and computed tomography can provide complete information about the location, nature and extent of lesions.
Protein-Based Vaccine May Protect Against Malaria
Positioning pelvic cancer patients on their stomachs rather than their backs is a better method for delivering radiation therapy, according to new research. Because patients return for multiple therapies, being able to reproduce the positioning of the patient allowed more precision, which reduces toxicity.
Quality-of-life Yardstick May Not Apply To Children With Serious Urologic Conditions
By studying antibodies in the blood of Amazonian natives living in malaria endemic areas, researchers have discovered promising new targets for a malarial vaccine. In Brazil, Plasmodium vivax was responsible for 80% of the 600,000 cases of malaria reported in 2005 and malaria-related morbidity across the Amazon Basin. Emerging resistance to the frontline antimalarial drug, chloroquine, is of major concern as the mutation of target antigens complicates the development of new preventative therapies.
Resistance To Thoughts Of Chocolate Is Futile
A small but revealing study suggests that a widely used tool to measure physical, emotional and psychological functioning and well-being in children may fail to accurately gauge these quality-of-life indicators in the children with some of the most severe bladder conditions, such as spina bifida and bladder exstrophies. Another possibility is that children with such conditions manage to adapt and have a relatively normal quality of life, researchers say.
Unravelling The Secrets Of Cancer Cells
Thought suppression can lead people to engage in the very behaviour they are trying to avoid, according to new research. The study also found that men who think about chocolate end up eating more of it than women who have the same thoughts.
Walking Prevents Bone Loss Caused From Prostate Cancer Treatment, Study Shows
New cancer models could lead to a greater understanding of the triggers that affect cancer cells. Scientists have developed a 3-D model of the mammary gland which allows them to study how cells can organize to form tissues and how cancer cells become normal again.
Ancient Seal Belonged To Queen Jezebel
Exercise may reduce, and even reverse, bone loss caused by hormone and radiation therapies used in the treatment of localized prostate cancer, thereby decreasing the potential risk of bone fractures and improving quality of life for these men, according to a new study.
Combination Targets For Cancer: Some Drugs Work Well Together, Studies Suggest
An Old Testament scholar has discovered that a seal found in 1964 and dating from the 9th century BCE belonged to the biblical figure Queen Jezebel. The seal's symbols served as the basis for Korpel's conclusion.
Fears About Complications Shouldn't Drive Antibiotic Prescribing, Study Finds
While some targeted therapies -- drugs developed to attack specific molecules in the critical chemical pathways occurring within cancer cells -- work well by themselves, increasingly researchers are finding that they work better when teamed with other targeted and conventional therapies.
Fight Against HIV Needs Local Scientists, Say Researchers
Antibiotics are not justified to reduce the risk of complications after upper respiratory tract infection, sore throat, or ear infection, finds a study published on the British Medical Journal web site.
Hand Hygiene Initiative Aims To Decrease Healthcare-associated Infection In Developing Countries
Scientists from developing countries are vitally important in the fight against HIV and they must be given the proper resources to conduct their work, according to a new commentary published today in the journal Nature Immunology. Researchers from Imperial College London, who are evaluating multiple candidate vaccines designed to prevent HIV, argue that Western governments and funding agencies must commit to sharing technology and expertise with those in the developing world on a long-term basis.
New Ideas About Human Migration From Asia To Americas
An open-access commentary in the December 2007 issue of Infection Control and Hospital Epidemiology examines a recently launched a global initiative by the World Health Organization to combat healthcare-associated infection by improving hand hygiene in health care. The commentary is part of the Global Theme Issue on Poverty and Human Development.
Silicon Can Work For New-Age Spintronics Applications
Questions about human migration from Asia to the Americas have perplexed anthropologists for decades, but as scenarios about the peopling of the New World come and go, the big questions have remained. Do the ancestors of Native Americans derive from only a small number of "founders" who trekked to the Americas via the Bering land bridge? How did their migration to the New World proceed? What, if anything, did the climate have to do with their migration? And what took them so long?
Why Do Autumn Leaves Turn Red? Soil May Dictate Fall Colors
In a rapid follow-up to their achievement as the first to demonstrate how an electron's spin can be electrically injected, controlled and detected in silicon, electrical engineers from the University of Delaware and Cambridge NanoTech now show that this quantum property can be transported a marathon distance in the world of microelectronics -- through an entire silicon wafer. The finding confirms that silicon -- the workhorse material of present-day electronics -- now can be harnessed up for new-age spintronics applications.
NKorea repeats nuclear disablement pledge as energy talks start
Soils may dictate the array of fall colors as much as the trees rooted in them, according to a forest survey out of North Carolina. By taking careful stock and laboratory analyses of the autumn foliage of sweetgum and red maple trees along transects from floodplains to ridge-tops in a nature preserve in Charlotte, N.C., scientists found that in places where the soil was relatively low in nitrogen and other essential elements, trees produced more red pigments known as anthocyanins.
Astronauts find damage on space station
AFP - North Korea Monday promised to start disabling its nuclear plants this week, a South Korean official said as a six-nation meeting discussed compensatory energy aid worth hundreds of millions of dollars.
Astronauts continue construction
AFP - US astronauts completed the second of five spacewalks Sunday, shifting around a key piece of equipment but also finding a problem with mechanisms supporting an energy unit at the International Space Station.
Logging Is Part of a Plan to Preserve 161,000 Acres in the Adirondacks Purchased by a Conservation Group
AP - Astronauts plowed ahead Monday with the mammoth job of moving a 17 1/2-ton solar array truss on the international space station, a task made even more crucial following the discovery of contamination in an important part of the orbiting lab's power system.
Massive rise in Europe GM crops
After purchasing a vast unbroken wilderness in Adirondack Park that only loggers and a few hunters have ever seen, the Nature Conservancy will not preserve it all as public land.
Arctic Ice Breaking-up Faster Than Predicted, Icebergs Risk To Shipping
The area planted with genetically modified crops in Europe has grown by 77% since last year, figures show.
More marine transportation is expected in the Arctic as sea ice continues to diminish, amid warnings of "significant hazards to navigation." The reduction in the sea ice extent has been much faster than global climate models predicted.