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Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage

The immune system is a marvel of versatility, creating a variety of cells that develop in different ways to protect the body. To carry out these tasks, immune cells follow a career path that forks at various points in their development. In a report in the May 2005 issue of Immunity, Fox Chase Cancer Center scientists led by immunologists David L. Wiest, Ph.D. and Dietmar J. Kappes, Ph.D., show th...

Depression gene may weaken mood-regulating circuit

A brain scan study suggests that a suspect gene may increase susceptibility to anxiety and depression* by weakening a circuit for processing negative emotion. People with the depression-linked gene variant showed less gray matter and weaker connections in the mood-regulating circuit. How well the circuit was connected accounted for nearly 30 percent of their anxious temperament, researchers at th...

Aggression-related gene weakens brain's impulse control circuits

A version of a gene previously linked to impulsive violence appears to weaken brain circuits that regulate impulses, emotional memory and thinking in humans, researchers at the National Institutes of Health's (NIH) National Institute of Mental Health (NIMH) have found. Brain scans revealed that people with this version ?especially males ?tended to have relatively smaller emotion-related brain str...

How can we protect patients with weakened immune systems from influenza?

The flu is bad enough for healthy people, but the disease can place a special burden on those with weakened immune systems, such as patients on chemotherapy. A five-year, $10.7 million federal grant to The Children's Hospital of Philadelphia will support research to determine how adults and children with impaired immune systems may be uniquely vulnerable to influenza, and will seek better ways to...
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California group says ruling weakens WARF's stem cell patent

regarding its stem cell patent, but a spokesman for the Wisconsin foundation said its recent $1 million jury reward in the Xenon Pharmaceuticals case demonstrates its ability t...

Though Weakening, Biotech IPO Market Still Viable, Burril & Co. Says

These lists allow me to arrange information into tidy boxes in some meaningful order for others (or at least to make better sense out of the information for myself). While my list propensity didnt come from David Letterman, his show enlightened me about how li...
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Ibuprofen weakens aspirin's effect

Many heart patients regularly take aspirin because it thins the blood and prevents the clots that cause heart attacks. Ibuprofen belongs to a widely used class of pain relievers known as nonsteroidal anti-inflammatory drugs.// Ibuprofen is widely used for arthritis and other aches and pains. The popular pain reliever ibuprofen blocks the heart-protecting effects of aspirin, according to a...

Severe stress weakens immunity

People undergoing oppressive stress have measurable anomalies in their immune system that make them more vulnerable to illness. It's widely believed that stress may impair health, although the underlying// mechanisms are not clear. Now researchers at Washington University in the US reveal that exposure to chronic stress has a specific effect on immunity. When an inflammatory response...

A gene related to aggression weakens the brain

National Institutes of Health's (NIH) National Institute of Mental Health (NIMH) researchers have found out that gene previously linked to impulsive violence appears// to weaken brain circuits that regulate impulses, emotional memory and thinking in humans. It was studied through brain scans that revealed that people with this version of gene – especially males – tended to have relativ...

Virulence of H5N1 virus may not weaken even in hot climes!

Warmer climes in the northern hemisphere might not mean anything to the deadly H5N1 virus as was earlier thought, due to its deep penetration in the poultry// flocks in several parts of Asia, according to health experts. Scientists had suggested earlier that the activity of the bird-flu virus would indeed be pronounced during the months from October to March when temperatures are be...

Sperm Cells attracted By Ovary Scent, Even in Weakened State

A new study by scientists at Indiana University Bloomington have reported that mouse sperm cells are capable of tracking the faintest of scents. //Sperm cells were bang on target, even when ovary extracts were extremely diluted. "Sperm are known to exhibit chemotaxis toward extracts from various female reproductive organs, but the role of chemotaxis in reproduction is not known," said I...

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