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Jefferson researchers' discovery may change thinking on how viruses invade the brain
04-19-2007 · EurekAlert!A molecule thought crucial to ferrying the deadly rabies virus into the brain, where it eventually kills, apparently isn't. Instead, the protein complex LC8 is actually involved in virus reproduction. The surprising finding, say researchers at Jefferson Medical College in Philadelphia, may change the way scientists think about how central nervous system-attacking viruses such as herpes viruses invade the brain and cause disease.
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- Researchers track snakes to study populations, behavior
06-19-2007 · EurekAlert!
A researcher for Washington University in St. Louis and colleagues at the Saint Louis Zoo and Saint Louis University are tracking timber rattlesnakes in west St. Louis County and neighboring Jefferson County to see how close to civilization the snakes are getting as humans developing subdivisions invade the snakes' turf.
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- Getting to the heart of the heart
11-22-2006 · EurekAlert!
Helping to change scientists' thinking about how the heart is formed, investigators at Children's Hospital Boston have identified a type of stem cell that gives rise to at least two different cell types that make up the heart's tissues. The findings, to be published in the Dec. 15 Cell, bring researchers a step closer to being able to regenerate tissues to repair congenital heart defects in children and damage caused by heart attacks in adults.
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- Researchers discover forests of endangered tropical kelp
09-26-2007 · EurekAlert!
A research team led by San Jose State University and the University of California, Santa Barbara has discovered forests of a species of kelp previously thought endangered or extinct in deep waters near the Galapagos Islands. The discovery has important implications for biodiversity and the resilience of tropical marine systems to climate change. The research paper describing the discovery is published in this week's online issue of the Proceedings of the National Academy of Sciences.
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- For the fruit fly, everything changes after sex
12-10-2007 · EurekAlert!
The females of many insect species change their behavior right after mating: mosquitoes look for a meal of fresh blood and flies begin to lay eggs. Researchers at the IMP managed to identify the molecular switches that are responsible for these behavioral changes. This could open up new possibilities to control agricultural pests or disease carriers. The science journal Nature reports on the discovery in its current online release.
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- Discovery could lead to better control of hemorrhagic fever viruses
02-07-2007 · EurekAlert!
Researchers report discovering the receptor through which a group of life-threatening hemorrhagic fever viruses enter and attack the body's cells, and show that infection can be inhibited by blocking this receptor. The findings, to be published online by the journal Nature on Feb. 7, give a clue to the high lethality of New World arenaviruses, suggest a way of reducing the severity of infection, and point the way toward a sorely needed treatment strategy.
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- Scientists identify a gene that may suppress colorectal cancer
03-21-2007 · EurekAlert!
In Genome Research, a husband-and-wife research team from Thomas Jefferson University report the discovery of a gene that, when mutated, may suppress colorectal cancer. To conduct the study, the researchers used a strain of mice that develop polyps, or small growths of tissue, in the digestive tract -- the harbingers of cancer. When these mice possessed one copy of the mutated gene, the incidence of small intestinal and colon polyps were reduced by about 90 percent.
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- Brain networks strengthened by closing ion channels
04-20-2007 · EurekAlert!
Yale School of Medicine and University of Crete School of Medicine researchers report in Cell April 20 the first evidence of a molecular mechanism that dynamically alters the strength of higher brain network connections involved in working memory. This discovery may help the development of drug therapies for the cognitive deficits of normal aging, and for cognitive changes in schizophrenia, bipolar disorder, or attention deficit hyperactivity disorder (ADHD).
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- Jefferson neuroscientists find early lead exposure impedes recovery from brain injury
12-03-2007 · EurekAlert!
Exposure to lead can hinder the brain's ability to recover from injury, a recent study shows. Researchers compared the ability to recover from a brain injury in two groups of young rats. One group was fed a diet supplemented with lead, while the other had a normal diet. Each rat was then given a small stroke that affected a hind limb. The lead-exposed animals recovered much more poorly after a brief period of time.
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01-17-2007 · EurekAlert!
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06-14-2007 · EurekAlert!
Can a fitness program for your brain improve thinking and concentration the way lifting weights can increase muscle strength? Early results from a Wake Forest University Baptist Medical Center study suggest that attention training can change brain activity so older adults can block out distractions and improve concentration.
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