Daily non-political popular news in brief.
Research explains how lead exposure produces learning deficits
04-03-2007 · EurekAlert!Exposure to levels of lead that are similar to those measured in lead-intoxicated children reduces the birth and survival of new neurons (neurogenesis) in the brain. A study of young adult rats by researchers from the Johns Hopkins Bloomberg School of Public Health provides evidence that explains exactly how exposure to lead during brain development produces learning deficits.
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- Study of Whitehall civil servants explains how stress at work is linked to heart disease
01-22-2008 · EurekAlert!
New research published in the European Heart Journal has produced strong evidence of how work stress is linked to the biological mechanisms involved in the onset of heart disease. It is the first large-scale study to look at the cardiovascular mechanisms of work stress in the population and provides the strongest evidence yet of the way it can lead to coronary heart disease, either directly, by activating stress pathways controlled by neuroendocrine mechanisms, or indirectly via its association with unhealthy lifestyles.
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- Antidepressants stimulate new nerve cells in adult monkeys, may have implications for humans
05-04-2007 · EurekAlert!
In adult monkeys, an antidepressant treatment has induced new nerve cell growth in the hippocampus, a brain area responsible for learning and memory. A similar process may occur in humans, the research suggests, and may help explain the effectiveness of antidepressant treatments.
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- New research explains link between smoking and SIDS
01-29-2008 · EurekAlert!
A new study from McMaster University in Hamilton sheds light on the relationship between women who smoke while pregnant -- or are exposed to secondhand smoke -- and an increased risk of SIDS to their babies. Researchers found that an infant's ability to respond to oxygen deprivation is dramatically compromised by exposure to nicotine in the womb, even light to moderate amounts.
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- Chi-Chang Kao Named Chair of the National Synchrotron Light Source at Brookhaven Lab
10-10-2006 · Brookhaven National Laboratory
Chi-Chang Kao, a physicist and leader in synchrotron light research, has been named Chair of the National Synchrotron Light Source (NSLS) Department, effective October 1. Kao had served as interim NSLS Chair since mid-January, after Steve Dierker stepped down to lead the development of the National Synchrotron Light Source II (NSLS-II), a proposed scientific user facility that would produce x-rays more than 10,000 times brighter than the current NSLS.
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- New research helps explain how tumors go undetected by the body
11-19-2007 · EurekAlert!
Scientists studying how immune cells are regulated in healthy individuals, have made a key discovery in understanding why tumors may go undetected by the immune system and remain untreated by the body's own natural defences. The findings, published online this week (November 19-23) by the Proceedings of the National Academy of Sciences, could lead to new treatments for tumors.
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- Environmental toxicants like lead, mercury target stem cells
02-05-2007 · EurekAlert!
Low levels of toxic substances cause critical stem cells in the central nervous system to prematurely shut down. This research, the first to identify a common molecular trigger for the effects of toxicant exposure, may give scientists new insights into damage caused by toxicant exposure and new methods of evaluating the safety of chemicals.
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- Mechanism of nicotine's learning effects explored
04-04-2007 · EurekAlert!
While nicotine is highly addictive, researchers have also shown the drug to enhance learning and memory -- a property that has launched efforts to develop nicotine-like drugs to treat cognitive deficits in Alzheimer's and Parkinson's diseases, schizophrenia and attention-deficit/hyperactivity disorder.
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- New study zeroes in on genetic roots of Alzheimer's
04-10-2007 · EurekAlert!
Scientists have long known that individuals with a certain gene are at higher risk for developing Alzheimer's disease. Now a new study helps explain why this is so. The research, led by scientists at the Oklahoma Medical Research Foundation, has uncovered a molecular mechanism that links the susceptibility gene to the process of Alzheimer's disease onset. The findings appear in the Journal of Neuroscience and may lead to new pathways for development of Alzheimer's therapeutics.
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- Morphine makes lasting -- and surprising -- change in the brain
04-25-2007 · EurekAlert!
Morphine stops the synapse-strengthening process in the brain known as long-term potentiation at inhibitory synapses, according to new research conducted by Brown University brain scientist Julie Kauer. In Nature, Kauer explains this startlingly persistent effect, which could contribute to addiction and may provide a target for treatments of opioid addiction. The research also supports a provocative theory of addiction as a disease of learning and memory.
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- Chi-Chang Kao Named Chair of the National Synchrotron Light Source at Brookhaven Lab
10-10-2006 · Brookhaven National Laboratory
Chi-Chang Kao, a physicist and leader in synchrotron light research, has been named Chair of the National Synchrotron Light Source (NSLS) Department, effective October 1. Kao had served as interim NSLS Chair since mid-January, after Steve Dierker stepped down to lead the development of the National Synchrotron Light Source II (NSLS-II), a proposed scientific user facility that would produce x-rays more than 10,000 times brighter than the current NSLS.
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