Immune cells transform into blood-vessel cells in ovarian cancer
Researchers at the University of Pennsylvania School of Medicine discovered that in ovarian cancer immune cells can change into blood-vessel cells, and eventually promote the life-sustaining vasculature of the tumor. These findings were initially observed in a mouse model of ovarian cancer that the investigators generated and then confirmed in human ovarian cancer. This work may lead to new approaches to fighting solid
A breakthrough in sustainable office and house design – invented in Sydney.
“Silenceair looks like a transparent brick but it’s a high-tech solution to one of the biggest problems of city living,” says Dr Chris Field, one of 16 early-career innovators who have presented their work to the Australian public and media as part of Fresh Innovators. The winner will win a study tour to the UK courtesy of British Council.
“Cities are noisy. When we block the noise from our offices
A major Canadian-led global study has found that the vast majority of heart attacks may be predicted by nine easily measurable factors and that these factors are the same in virtually every region and ethnic group worldwide.
The INTERHEART study looked at more than 29,000 people in 52 countries and from all inhabited continents of the world. The study was presented Aug. 29 at the European Society of Cardiology (ESC) Congress in Munich, Germany by Dr. Salim Yusuf, a professor of medic
On behalf of the Steering Committee of the American-Australian-African trial with DronedarONe In atrial fibrillation or flutter patients for the maintenance of Sinus rhythm
ADONIS trial findings presented at the European Society of Cardiology Congress in Munich
The findings of the “American-Australian-African trial with DronedarONe In atrial fibrillation or flutter patients for the maintenance of Sinus rhythm” (ADONIS) trial, announced today at the annual meeting of the Europ
Materials made from particles one-millionth the size of a fine-point pen tip are touted daily for their current uses and dreamed of possibilities, but a pressing question remains as to the environmental impact of manufactured nano-sized materials.
Purdue University scientists are investigating the interactions between these tiny, many-sided structures and the environment. To further this research, the National Science Foundation (NSF) and Environmental Protection Agency (EPA) have
Initiative targets highly innovative research
The National Science Foundation (NSF) has announced its first three Chemical Bonding Centers–multi-faceted research groups that will each tackle a “big problem” in chemistry, in an atmosphere that’s intended to be flexible, tolerant of risk, and open to thinking far outside the box.
The new Chemical Bonding Centers (CBCs) will be based at the Massachusetts General Hospital, the University of California at Santa Barbara, and the
Scientists leading an international effort to safeguard the future of endangered loggerhead turtles have this week watched the capture and demise of one of their turtles being tracked by satellite.
“Sodade”, a loggerhead sea turtle from the republic of Cabo Verde, an island archipelago off the coast of Western Africa, appears to have been captured by fishermen.
She is one of 9 turtles being tracked by satellite from the recently discovered loggerhead nesting population i
Over the past six weeks, scientists aboard the research vessel “Polarstern” of the Alfred Wegener Institute for Polar and Marine Research have been investigating changes in ocean temperature and sea ice cover in the area of Fram Strait between Spitsbergen and Greenland.
In this area significant exchange of water masses between the Arctic Ocean and the Atlantic Ocean takes place. The ongoing process of global warming throughout the past years has also altered conditions in Fram Stra
Most of the energy that goes into building U.S. homes is consumed – not by the power tools, welding and trucking during construction – but during the manufacture of the building materials, according to a comprehensive life-cycle assessment comparing typical wood-, steel- and concrete-frame homes.
Using the least energy-intensive building materials – and taking steps toward such things as recycling and reusing more building materials – makes sense considering the nation’s energy conc
University of California scientists working at Los Alamos National Laboratory have recently demonstrated a novel method for chemically modifying and enhancing silica-based aerogels without sacrificing the aerogels unique properties. Aerogels are low-density, transparent materials used in a wide range of applications, including thermal insulation, porous separation media, inertial confinement fusion experiments and cometary dust capture agents.
Made of silica, one of the Earth’
Columbia University Medical Center and Albert Einstein College of Medicine researchers have identified a possible cause of an inherited form of Parkinson’s disease, which may be related to more common forms of the disease. The findings are reported in the August 27, 2004 issue of Science.
While the cause of most cases of Parkinson’s disease is unknown, a few cases are inherited and can be traced to mutations in four different genes, including the alpha-synuclein gene. This is the
Researchers show HIV patients may be infected with more than one type of HIV
Some HIV patients may be plagued by more than one type of HIV infection according to researchers at the McGill AIDS Centre, Sir Mortimer B. Davis – Jewish General Hospital and the McGill University Health Centre. They have shown that some patients may be susceptible to a second infection with another HIV virus including viruses resistant to drugs. This infection with a second HIV virus is called superinfect
With equipment so sensitive that it can locate clusters of electrons, Cornell University and University of Tokyo physicists have — sort of — explained puzzling behavior in a much-studied high-temperature superconductor, perhaps leading to a better understanding of how such superconductors work.
It turns out that under certain conditions the electrons in the material pretty much ignore the atoms to which they are supposed to be attached, arranging themselves into a neat pattern
As the debate continues on the ethics and therapeutic potential of embryonic versus mature stem cells, Medical College of Georgia researchers are exploring a third group of cells that appears critical to development and capable of making all major types of human tissue.
“VENT cells are a unique category of multi-potent cells,” Dr. Douglas P. Dickinson, molecular biologist, says of this cell type that escapes from the bottom of the neural tube early in development, after the tube clo
Streptococcal bacteria may infect humans by using a bacterial enzyme to “hijack” the blood-clotting system, according to new research by Howard Hughes Medical Institute scientists.
In studies published in the August 27, 2004, issue of the journal Science, the researchers establish that the enzyme streptokinase is responsible for the pathogen’s ability to infect humans while exhibiting little activity against other mammals.
The scientists genetically altered strains of
A carefully controlled animal study provides clear evidence that a low-glycemic-index (low-GI) diet – one whose carbohydrates are low in sugar or release sugar slowly – can lead to weight loss, reduced body fat, and reduction in risk factors for diabetes and cardiovascular disease.
“The study findings should give impetus to large-scale trials of low-GI diets in humans,” says senior author David Ludwig, MD, PhD, director of the Optimal Weight for Life (OWL) obesity program at Childre
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