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Study suggests other causes for childhood brain aneurysms
06-13-2007 · EurekAlert!A new University of Cincinnati study questions the commonly held scientific belief that childhood brain aneurysms are caused by trauma, infection or underlying vascular malformations.In a retrospective review of 53 Ohio children with intracranial arterial aneurysms, Todd Abruzzo, MD, found that the most common type of aneurysm among all age groups appeared to occur spontaneously -- with no related trauma or infection, recognizable clinical warnings signs or underlying medical causes, such as vascular malformations.
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- Preclinical study links gene to brain aneurysm formation
08-07-2007 · EurekAlert!
University of Cincinnati neurovascular researchers have identified a gene that -- when suppressed or completely absent -- may predispose a person to brain aneurysms. Todd Abruzzo, MD, and his colleagues demonstrated that "knocking out" a gene known as endothelial nitric oxide synthase in an animal model led to intracranial aneurysm formation in 33 percent of study subjects. Scientists say this suggests that the gene may play an important role in the development of intracranial aneurysms.
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- Extracts of catfish caught in polluted waters cause breast cancer cells to multiply
11-07-2007 · EurekAlert!
Exposing estrogen-sensitive breast cancer cells to extracts of fish caught in areas with heavy sewer and industrial waste causes the cells to multiply, according to a University of Pittsburgh study. The study, which tested extracts from fish caught in the Allegheny and Monongahela rivers near Pittsburgh, suggests that fish contain substances that mimic the actions of estrogen, the female hormone, and that chemicals that mimic estrogen may be making their way into the region's waterways.
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- Is there such a thing as too much sugar?
04-02-2007 · EurekAlert!
Treatment with insulin can cause hypoglycemia (low levels of glucose in the blood), which, if prolonged, can lead to neuronal death, brain injury and coma. In a new study, researchers found that in hypoglycemic mice, neuronal death is triggered by treatment with glucose rather than by the hypoglycemia. This suggests that it might be best to treat individuals in hypoglycemic coma by gradually increasing their blood glucose levels rather than by restoring glucose levels rapidly.
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- U-M scientists find new causes for neurodegeneration
10-24-2007 · EurekAlert!
Diseases that cause neurons to break down, such as Alzheimer's, continue to be elusive to scientists and resistant to treatments. A new finding from University of Michigan researchers demonstrates an unpredicted link between a virtually unknown signaling molecule and neuron health. In a study released in PNAS this week, Lois Weisman connects the loss of this molecule to massive neurodegeneration in the brain, which plays a key role in the survival of nervous system cells.
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- Heavy, chronic drinking can cause significant hippocampal tissue loss
10-24-2006 · EurekAlert!
The hippocampus, a brain structure vital to learning and memory, is likely vulnerable to damage from heavy and chronic alcohol consumption. A new study has found a reduction in total hippocampus volume among alcoholics. This suggests that heavy drinking can cause significant hippocampal tissue loss.
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- Pediatric ritalin use may affect developing brain, new study suggests
07-19-2007 · EurekAlert!
Use of the attention deficit/hyperactivity disorder (ADHD) drug Ritalin by young children may cause long-term changes in the developing brain, suggests a new study of very young rats by a research team at Weill Cornell Medical College in New York City.
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- Study suggests potential underlying cause for dementia after cancer treatment
11-06-2006 · EurekAlert!
Researchers at Wake Forest University School of Medicine have identified changes in brain chemistry that may be associated with the dementia that many cancer patients develop after whole-brain radiation treatment.
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- Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
08-21-2007 · EurekAlert!
Scientists at the University of Toronto Mississauga and Queen's University show that genetic variation in the foraging gene results in different tolerance for heat stress and demonstrate how the use of specific drugs can replicate this effect in fruit flies and locusts. While the findings are at an early stage, the researchers suggest that they could lead to ways to rapidly protect the brain from extremely high fevers in mammals, including humans.
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- Study suggests some brain injuries reduce the likelihood of post-traumatic stress disorder
12-23-2007 · EurekAlert!
A new study of combat-exposed Vietnam War veterans shows that those with injuries to certain parts of the brain were less likely to develop post-traumatic stress disorder. The findings, from the National Institutes of Health and the National Naval Medical Center, suggest that drugs or pacemaker-like devices aimed at dampening activity in these brain regions might be effective treatments for PTSD.
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- Study examines decision-making deficits in older adults
01-14-2008 · EurekAlert!
Recent work led by University of Iowa neuroscientist Natalie Denburg, PhD, suggests that for a significant number of older adults, measurable neuropsychological deficits do seem to lead to poor decision-making and an increased vulnerability to fraud. The findings also suggest that these individuals may experience disproportionate aging of a brain region critical for decision-making.
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