Body

Seven out of ten hospital nurses who took part in a Canadian study used the dorsogluteal (DG) buttock site to administer intramuscular injections - despite the potential risks of sciatic nerve injury - with only 14% using the ventrogluteal (VG) hip site recommended by the nursing literature.

Steganography is a form of security through obscurity in which information is hidden within an unusual medium. An artist might paint a coded message into a portrait, for instance, or an author embed words in the text. A traditional paper watermark is a well-known example of steganography in action. At first glance, there would appear to be nothing unusual about the work, but a recipient aware of the presence of the hidden message would be able to extract it easily. In the computer age, steganography has become more of a science than an art.

In one of the first studies to look at the population behavior of a large pool of stem cells in thousands of hair follicles – as opposed to the stem cell of a single hair follicle – Keck School of Medicine of USC scientists deciphered how hair stem cells in mice and rabbits can communicate with each other and encourage mutually coordinated regeneration, according to an article published in the April 29 edition of the journal Science.

The ongoing controversy surrounding the safety of using TASER® electrical stun guns took a new turn today when a team of cardiologists at the University of California, San Francisco announced findings suggesting that much of the current TASER®-related safety research may be biased due to ties to the devices' manufacturer, TASER International, Inc.

Gay men have a higher prevalence of cancer compared with heterosexual men, and lesbian and bisexual female cancer survivors report lower levels of health than heterosexual female cancer survivors. Those are the conclusions of a new study published early online in Cancer, a peer-reviewed journal of the American Cancer Society. The study's findings shed light on the types of programs and services that are needed to assist lesbian, gay, and bisexual cancer survivors.

ROCHESTER, Minn. — Mayo Clinic researchers have designed a new tool for identifying protein function from genetic code. A team led by Stephen Ekker, Ph.D., succeeded in switching individual genes off and on in zebrafish, then observing embryonic and juvenile development. The study appears in the journal Nature Methods.

Celiac disease is more common among Massachusetts children born in the spring or summer, and this higher incidence could be related to the intersection of key seasonal and environmental factors, according to researchers at the Massachusetts General Hospital for Children.

Adalimumab (ADA), a drug often prescribed for women with Crohn's disease, actively crosses the placenta during the final trimester of pregnancy and remains in a newborn's bloodstream for at least three months, researchers at the University of California San Francisco have found.

El Niño and its partner La Niña, the warm and cold phases in the eastern half of the tropical Pacific, play havoc with climate worldwide. Predicting El Niño events more than several months ahead is now routine, but predicting how it will change in a warming world has been hampered by the short instrumental record.

Researchers at Columbia Engineering have established a new method to patch a damaged heart using a tissue-engineering platform that enables heart tissue to repair itself. This breakthrough, recently published in the Proceedings of the National Academy of Sciences, is an important step forward in combating cardiovascular disease, one of the most serious health problems of our day.

While children of all ethnicities can contract Kawasaki disease (KD), a study led by researchers at the Kawasaki Disease Research Center at the University of California, San Diego and Rady Children's Hospital-San Diego finds that Filipino children with KD are at a higher risk for inflammation of the blood vessels of the heart than those of other Asian and non-Asian backgrounds. Nearly 24 percent of Filipino children with KD in San Diego County were found to have aneurysms compared to 10.5 percent of children of other Asian descent.

Over the past decades, researchers seeking to understand molecular mechanisms underlying various diseases, notably cancer, have taken advantage of DNA microarrays to interrogate tissues specimen of patients for the expression status of thousands of genes at once. Jointly, such gene expression status of each gene in the genome, measured as the level of their transcripts, constitutes the gene expression profile.

Over the past decades, researchers seeking to understand molecular mechanisms underlying various diseases, notably cancer, have taken advantage of DNA microarrays to interrogate tissues specimen of patients for the expression status of thousands of genes at once. Jointly, such gene expression status of each gene in the genome, measured as the level of their transcripts, constitutes the gene expression profile.

LA JOLLA, CA – May 6, 2011 – Researchers at The Scripps Research Institute have found a temperature-sensing protein within immune cells that, when tripped, allows calcium to pour in and activate an immune response. This process can occur as temperature rises, such as during a fever, or when it falls—such as when immune cells are "called" from the body's warm interior to a site of injury on cooler skin.

A new strain of Staphylococcus aureus bacteria associated with exposure to livestock was recently discovered in one Iowa child care worker who reported no contact with livestock, according to University of Iowa researchers.