URBANA, Ill. – The use of soybean meal in diets fed to weanling pigs is limited due to the presence of anti-nutritional factors that young pigs can't tolerate. Therefore, other sources of protein, such as fish meal and plasma, are used in nursery pig diets. But there are other ingredients available to producers as well. Researchers at the University of Illinois have determined the nutritional value of three new protein products that have recently become available as feed ingredients for pigs. Hans H. Stein, a U of I professor of animal sciences, and his team measured ...

Surgery to relieve the damaging pressure caused by hemorrhaging in the brain is a perfect job for a robot. That is the basic premise of a new image-guided surgical system under development at Vanderbilt University. It employs steerable needles about the size of those used for biopsies to penetrate the brain with minimal damage and suction away the blood clot that has formed. The system is described in an article accepted for publication in the journal IEEE Transactions on Biomedical Engineering. It is the product of an ongoing collaboration between a team of engineers ...

CORVALLIS, Ore. – Chemists at Oregon State University have identified a compound that could significantly reduce the cost and potentially enable the mass commercial production of silicon nanostructures – materials that have huge potential in everything from electronics to biomedicine and energy storage. This extraordinary compound is called table salt. Simple sodium chloride, most frequently found in a salt shaker, has the ability to solve a key problem in the production of silicon nanostructures, researchers just announced in Scientific Reports, a professional journal. By ...

MINNEAPOLIS – Drinking two cups of hot chocolate a day may help older people keep their brains healthy and their thinking skills sharp, according to a study published in the August 7, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study involved 60 people with an average age of 73 who did not have dementia. The participants drank two cups of hot cocoa per day for 30 days and did not consume any other chocolate during the study. They were given tests of memory and thinking skills. They also had ultrasounds tests to measure ...

SEATTLE -- A joint Group Health–University of Washington (UW) study in the New England Journal of Medicine has found that higher blood sugar levels are associated with higher dementia risk, even among people who do not have diabetes. Blood sugar levels averaged over a five-year period were associated with rising risks for developing dementia, in this report about more than 2,000 Group Health patients age 65 and older in the Adult Changes in Thought (ACT) study. For example, in people without diabetes, risk for dementia was 18 percent higher for people with an average ...

Five-to-six-year olds are more likely to be kind to peers after observing them interacting with other children in positive ways, suggesting that children establish a sense of their peers' 'reputation' early in life. The results are published August 7 in the open access journal PLOS ONE by Kenji Onishi and colleagues from Osaka University, Japan. The researchers observed kindergarteners' day-to-day behavior and found that bystanders in a playground were more likely to offer an object or help a child whom they had seen being helpful to another child. Children were more ...

People given scientific evidence supporting our ability to predict the future feel a greater sense of control over their lives, according to research published August 7 in the open access journal PLOS ONE by Katharine Greenaway and colleagues from the University of Queensland, Australia. One group of study participants read a paragraph stating that researchers had found evidence supporting the existence of precognition, while another group read a related paper that refuted these findings. Both papers were published in the same issue of a scientific journal. On a subsequent ...

A physical handicap like being tied down makes men over-estimate an opponent's size and under-estimate their own, according to research published August 7 in the open access journal PLOS ONE by Daniel Fessler and Colin Holbrook from the University of California, Los Angeles. Participants who were tied down in a chair envisioned an angry man in a picture as being taller than when they made the same type of guess while simply sitting in the chair without being restrained. In a second test where they were asked to state their own height based on visual marks on a wall, ...

Some optical illusions look like they're in motion even though the picture is static. A new map of the fly brain also suggests motion—or at least how the fly sees movement. The new research, published in the August 8 issue of Nature, takes advantage of a high-throughput approach that speeds the charting of neuronal connections involved in motion detection. Neurons snake through the brain, each reaching out and touching many other neurons. In the human brain, 100 billion neurons make on average 1,000 connections each. That intricate network is the secret behind all the ...

A newly discovered fossil reveals the evolutionary adaptations of a 165-million-year-old proto-mammal, providing evidence that traits such as hair and fur originated well before the rise of the first true mammals. The biological features of this ancient mammalian relative, named Megaconus mammaliaformis, are described by scientists from the University of Chicago in the Aug 8 issue of Nature. "We finally have a glimpse of what may be the ancestral condition of all mammals, by looking at what is preserved in Megaconus. It allows us to piece together poorly understood details ...

The National Institutes of Health today announced in Nature that it has reached an understanding with the family of the late Henrietta Lacks to allow biomedical researchers controlled access to the whole genome data of cells derived from her tumor, commonly known as HeLa cells. These cells have already been used extensively in scientific research and have helped make possible some of the most important medical advances of the past 60 years. These include the development of modern vaccines, cancer treatments, in vitro fertilization techniques, and many others. HeLa cells ...

INDIANAPOLIS -- Researchers from Indiana University, the University of Michigan, the Fred Hutchinson Cancer Research Center and the Dana-Farber Cancer Institute have identified and validated a biomarker accessible in blood tests that could be used to predict which stem cell transplant patients are at highest risk for a potentially fatal immune response called graft-versus-host disease. Although transplant specialists have been able to reduce its impact, graft-versus-host disease remains a leading cause of death among patients who receive a stem cell transplant from another ...

The range of helpful bacteria in the guts of infants delivered by caesarean section, during their first two years of life, is narrower than that of infants delivered vaginally, indicates a small study published online in the journal Gut. This has implications for the development of the immune system, say the researchers, particularly as the C-section infants had lower levels of the major group of gut bacteria associated with good gut health, Bacteroidetes phylum, as well as chemicals that help curb allergic responses. The researchers assessed the patterns of bacterial ...

Rheumatoid arthritis significantly increases the risk of potentially fatal blood clots in the legs and lungs, reveals a large nationwide study published online in the Annals of the Rheumatic Diseases. Between 11% and 30% of people who develop a blood clot in the legs, known as a deep vein thrombosis or DVT, or a blood clot in the lungs, known as a pulmonary embolism, or PE, die within 30 days of their diagnosis, the evidence suggests. Several studies have shown that chronic inflammation, which typifies rheumatoid arthritis, is linked to a heightened risk of thickened ...

A team from the University of Washington has unveiled a comprehensive portrait of the genome of the world's first immortal cell line, known as HeLa. The cell line was derived in 1951 from an aggressive cervical cancer that killed Henrietta Lacks, a 31-year-old African-American tobacco farmer and mother of five – the subject of the 2010 New York Times bestseller, The Immortal Life of Henrietta Lacks. They will also be the first group to publish under a new National Institutes of Health (NIH) policy for HeLa genomic data, established through discussions with Lacks' family. The ...

In a discovery that further demonstrates just how unexpected and unusual nature can be, scientists have found two strains of bacteria whose symbiotic relationship is unlike anything seen before. Long, thin, hairlike Thioploca (meaning "sulfur braids" in Spanish) trichomes form chains down into marine sediment, which tiny anammox cells ride down like an elevator. At the bottom, the anammox cells consume the waste products of the Thioploca: nitrite and ammonium, or "fixed" nitrogen. Nitrogen is a crucial building block of life, a prerequisite for photosynthesis. While ...

BETHESDA, MD -- The first study to sequence and analyze the entire genome of a HeLa cell line, along with access to its sequence data, has been published today (Wednesday, August 7) in its final version, by G3: Genes|Genomes|Genetics, an open-access, scientific journal of the Genetics Society of America. The article, "The Genomic and Transcriptomic Landscape of a HeLa Cell Line," by Landry et al., was authored by scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, and was published in an early online version March 11, 2013. Genomic ...

Organic solar cells that convert light to electricity using carbon-based molecules have shown promise as a versatile energy source but have not been able to match the efficiency of their silicon-based counterparts. Now, researchers have discovered a synthetic, high-performance polymer that behaves differently from other tested materials and could make inexpensive, highly efficient organic solar panels a reality. The polymer, created at the University of Washington and tested at the University of Cambridge in England, appears to improve efficiency by wringing electrical ...

One of the most basic and intensively studied processes in biology—one which has been detailed in biology textbooks for decades—has gained a new level of understanding, thanks to the application of simple math to a problem that scientists never before thought could benefit from mathematics. The scientists who made the discovery, published in this week's advance online publication of Nature, found that the process bacteria use to quickly adapt to metabolize preferred energy sources such as glucose—a process called "catabolite repression"—is controlled not just by glucose, ...

Dogs yawn contagiously when they see a person yawning, and respond more frequently to their owner's yawns than to a stranger's, according to research published August 7 in the open access journal PLOS ONE by Teresa Romero and colleagues from the University of Tokyo. Pet dogs in the study watched their owner or a stranger yawn, or mimic a yawning mouth movement, but yawned significantly more in response to their owners' actions than to the strangers' yawns. The dogs also responded less frequently to the fake movements, suggesting they have the ability to yawn contagiously. ...

NEW YORK, AUGUST 7, 2013 — A new study by thoracic surgeons and pathologists at Memorial Sloan-Kettering Cancer Center shows that a specific pattern found in the tumor pathology of some lung cancer patients is a strong predictor of recurrence. Knowing that this feature exists in a tumor's pathology could be an important factor doctors use to guide cancer treatment decisions. According to the study's authors, the findings offer the first scientific evidence that may not only help surgeons identify which patients are more likely to benefit from less radical lung-sparing ...

PHILADELPHIA - Patients with mild, moderate and severe psoriasis had increasingly higher odds of having at least one major medical disease in addition to psoriasis, when compared to patients without psoriasis. Reporting findings in JAMA Dermatology, researchers from the Perelman School of Medicine at the University of Pennsylvania, concluded that the severity of disease, as measured by the percentage of body surface area affected by psoriasis, was strongly linked to an increased presence of other diseases affecting the lungs, heart, kidneys, liver and pancreas. The research ...

Call it the Goldilocks Principle — animals can survive and reproduce only if the temperature is just right. Too hot and they will overheat. Too cold and they will freeze. To stay in their comfort zone, animals have evolved very sensitive temperature sensors to detect the relatively narrow margin in which they can survive. Until recently, scientists knew little about how these sensors operated. Now, a team of Brandeis University scientists has discovered a previously unknown molecular temperature sensor in fruit flies belonging to a protein family responsible for sensing ...

For the longest time, all that was known about this long-extinct mammal was a few little teeth with striking cusps on their occlusal surfaces. "Paleontologists have been wondering for over a hundred years what the animal that went with these teeth might have looked like," said Prof. Dr. Thomas Martin from the Steinmann-Institut of the University of Bonn. The matter was elucidated when locals found a completely preserved skeleton of the enigmatic mammal in Northeast China, which was then aquired by the Paleontological Museum of Liaoning in Shenyang. Together with Dr. Chang-Fu ...

Eprobe®, a highly efficient and reliable fluorescent probe for PCR DNA amplification techniques and DNA analysis in hybridization experiments, has been developed by researchers from RIKEN and Japanese firm K.K.DNAFORM. This technology will enable the development of new, advanced assays for DNA-based genetic testing and help to bring the benefits of genome-wide sequencing studies to patients in the clinic. Takeshi Hanami, Diane Delobel and colleagues from the RIKEN Center for Life Science Technologies, the RIKEN Preventive Medicine & Diagnosis Innovation Program, and K.K.DNAFORM ...