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Aggressive melanoma cells secrete Nodal - protein critical to embryo formation

A Northwestern University research group has discovered that aggressive melanoma cells secrete Nodal, a protein that is critical to proper embryo formation.

6 Aug 2006

Why reassurance fails in patients with unexplained symptoms

When patients are unconvinced by reassurance from their doctor that they have nothing to worry about, it may be because their emotional state makes it hard for them to remember all the information the doctor has given them, according to new research in PLoS Medicine.

6 Aug 2006

Spray-on skin helps children suffering burns cope with the trauma of scarring

Spray-on skin is helping child burns victims cope with the trauma of scarring, according to a study by University of Queensland researchers at the Royal Children's Hospital in Brisbane.

6 Aug 2006

New, shorter therapies to treat tuberculosis more effective

New, shorter therapies to treat tuberculosis (TB), which kills millions worldwide each year, may make TB control efforts substantially more effective by simplifying treatment, improving patient outcomes and reducing transmission of new infections.

6 Aug 2006

Gene family expansion can begin even before a gene is duplicated

Theoretical biologist Stephen Proulx studies gene families to explore how genomes become diverse and evolve.

6 Aug 2006

DNA of human embryonic stem cells is chemically modified in a characteristic, predictable pattern

Embryonic stem cells are derived from embryos that are undergoing a period of intense cellular activity, including the chemical addition of methyl groups to specific DNA sequences in a process known as DNA methylation.

6 Aug 2006

Impact of adolescent overweight on adult mortality

Researchers found that being overweight at age 18 is associated with an increased risk of premature death in younger and middle-aged women.

6 Aug 2006

Txr1 gene that affects human cancer cells' sensitivity to chemotherapy

Gene that affects human cancer cells' sensitivity to chemotherapy - an important finding in the effort to increase the effectiveness of chemotherapy.

6 Aug 2006

Tocotrienol - a potent neuroprotective agent

Two recent studies offer new evidence suggesting an alternative form of natural vitamin E can be taken by mouth and will reach the blood in humans at levels determined to protect against stroke and other diseases.

6 Aug 2006

Interleukin 21 may enhance the effectiveness of Herceptin

Preliminary research suggests that a drug that targets a particular type of breast cancer might be more effective if patients are also given a substance made by the body that stimulates certain immune cells.

6 Aug 2006

Driver distraction causes one in five crashes

Results published in the new issue of international journal, Injury Prevention, show that driver distraction causes one in five crashes reported by drivers.

6 Aug 2006

Almost half of kids with ADHD are not being treated

In contrast to claims that children are being overmedicated for attention-deficit/hyperactivity disorder (ADHD), a team of researchers at Washington University School of Medicine in St. Louis has found that a high percentage of kids with ADHD are not receiving treatment.

4 Aug 2006

Living by yourself helps create consumption crisis

One-person households are the biggest consumers of land, energy and household appliances in England and Wales, with men between the ages of 35 and 45 being the worst offenders, according to UCL (University College London) research.

4 Aug 2006

Federally approved human embryonic stems inferior to those donated for research

Neural stem cells grown from one of the federally approved human embryonic stem cell lines proved to be inferior to neural stem cells derived from fetal tissue donated for research, a UCLA study has found.

4 Aug 2006

Researchers discover one of the malaria parasite's sneakiest tricks

Researchers have discovered one of the malaria parasite's sneakiest tricks--using dead liver cells to cloak and transport itself back into the bloodstream after leaving the liver.

4 Aug 2006

Turning the immune system against cancer

Medicine can now prevent a host of diseases with a mere shot of vaccine. Polio and smallpox are almost non-existent, and mumps and chicken pox are rarely seen nowadays.

4 Aug 2006

Methamphetamine increases production of protein that promotes the spread of the HIV-1 virus in infected drug users

Researchers at the University at Buffalo have presented the first evidence that the addictive drug methamphetamine, or meth, also commonly known as "speed" or "crystal," increases production of a docking protein that promotes the spread of the HIV-1 virus in infected users.

4 Aug 2006