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Tracing broken wiring in stroke patients

... in brain circuitry that causes stroke patients to show a lack of awareness or response to the side of the...the researchers. Such findings, they commented, show that "FC MRI is a promising new tool for the investigation of brain-behavior relationships in patien...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

...et of symptoms for bilingual patients. "The data show a huge protective effect," adds co-investigator Dr. Craik, who cautioned that this is still a preliminary finding but nonetheless in line with a number of other recent findings about lifestyle effects on dementia. The team is working on a follow-u...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

...search scientist at the Canadian Museum of Nature, show that Hydatellaceae are actually closely related to water lilies. Their findings are published in this week’s edition of the journal Nature. Due to their narrow, pointed leaves, botanists had long viewed Hydatellaceae as monocots, a large and diver...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

... the University of Louisville. Their findings also show that the vaccine offers significant cross-protection for HPV types 45 and 31. The study follows 1113 women between the ages of 15 and 25 in North America and Brazil randomized to receive three doses of either the vaccine or the control. The vacc...

The chimpanzee stone age

...chimpanzee settlement. The stones they excavated show the hallmarks of use as tools for smashing nuts when compared to ancient human or modern chimpanzee stone tools. Also, they found several types of starch grains on the stones; part of the residue derived from cracking local nuts. The tools are 4300 y...

Gene that makes people 'early to bed and early to rise' demystified

...y sleep times. People with the condition generally show changes in core body temperatures and other charac...lly primed by the initial event. Moreover, they show that the human gene inserted into otherwise normal mice causes them to rise early, symptoms that mir...

What recognizes what in plant disease resistance?

...ch-Smith, Savithramma Dinesh-Kumar, and colleagues show how one aspect of the plant immune system is defin...ough their leucine-rich repeat domain, the authors show that association is mediated by a completely different region on N's Toll-interleukin-1 receptor hom...

Protein sensor for fatty acid buildup in mitochondria

... of Sciences (PNAS). "The results of this study show how and where a critical biochemical pathway for fatty acid breakdown is controlled by a specific enzyme," said Charles Rock, Ph.D., a member of the Infectious Diseases department at St. Jude. "It offers an explanation of why the absence of this enzy...

Finnish scientists discovered a new approach to treat virus-induced lymphomas

...their wt p53 status. Moreover, the researchers show that Nutlin-3a has striking anti-tumor activity in vivo in a mouse xenograft model for the PEL. Nutlin-3a treatment resulted in a marked regression of all tumors in the treated animals in two weeks. These results demonstrate that p53 reactivation via...

Breakthrough in understanding type-2 diabetes as key genes identified

...uld enable scientists to develop a genetic test to show an individual their likelihood of developing diabetes mellitus type 2, commonly known as type-2 diabetes. The researchers identified four loci, or points on individuals' genetic maps, which corresponded to a risk of developing the disorder. The s...

White blood cells in lung produce histamine seen in allergies

... inflammation. The study in mice is the first to show that lung neutrophils can produce histamine in significant quantities, according to principal investigator George Caughey, MD, chief of pulmonary/critical care medicine at the San Francisco VA Medical Center. "Previously it was thought that the pri...

Carnegie Mellon University research shows how sensory-deprived brain compensates

...udies of this system by Carnegie Mellon scientists show just how well a mouse brain can compensate when li...y the authors. "Our findings are the first to show this degree of brain adaptability in a setting with significantly limited sensory input," said Aliso...

Biologists prove critical step in membrane fusion

... and a high-resolution microscope, the researchers show that hemifusion is surprisingly stable in live cells. "The novelty of these results is that a live cell can maintain a hemifused state for hours, days, even months," said Julian Wong, a postdoctoral research associate in the Wessel lab and the fir...

Natural gut hormone offers hope for new obesity drug

...e elevated levels of the hormone and yet appear to show no adverse side-effects. "These people may have had high levels of PP for ten or fifteen years without showing side effects," he explains. "In that sense, they have provided us with a natural experiment that suggests that excess levels of PP over a...

Racing neurons control whether we stop or go

...iological data collected in Schall’s laboratory to show how a theoretical model Logan developed more than 20 years ago is implemented by the brain. "I developed the race model to explain behavior on a task called the stop signal task with a friend of mine, William Cowan, who is a theoretical physicist,...

Gene therapy for blindness clears hurdle in mice

...p, introducing the normal gene to the retina, will show whether we are able to restore vision in this model or not." If both steps are perfected, scientists plan to study the treatment in a larger animal model and then possibly move to a human clinical trial....

Researchers find 6,000-year-old fossil evidence

...arch, there wasn't much archaeological evidence to show that prehistoric people in Central and South America were eating domesticated chili peppers," said Deborah Pearsall, professor of anthropology in MU's College of Arts and Science. "Chili peppers don't preserve well because when you cook with them, yo...

Global 'sunscreen' has likely thinned, report NASA scientists

...systems that date back to 1978. The resulting data show large, short-lived spikes in global aerosols caused by major volcanic eruptions in 1982 and 1991, but a gradual decline since about 1990. By 2005, global aerosols had dropped as much as 20 percent from the relatively stable level between 1986 and 199...

New research shows that flu is a trigger of heart attacks

...rent stages of atherosclerosis and many will never show any clinical manifestations of the atherosclerosis. However, in some patients the quiescent, stable atherosclerotic plaques undergo sudden changes, mainly due to exaggerated inflammation, leading to rupture of these vulnerable plaques and subsequent ...

Map predicting spread of avian flu

...ceptible farms. For avian influenza, the analyses show that there are two poultry-dense areas in The Netherlands where epidemic spread is possible, one in the central region and one in the south, close to the German and Belgian border (see attached figure). The authors suggest local control measures are ...

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