Body

Contagious yawning may not be linked to empathy; still largely unexplained

DURHAM, N.C. -- While previous studies have suggested a connection between contagious yawning and empathy, new research from the Duke Center for Human Genome Variation finds that contagious yawning may decrease with age and is not strongly related to variables like empathy, tiredness and energy levels.

The study, published March 14 in the journal PLOS ONE, is the most comprehensive look at factors influencing contagious yawning to date.

Tension triggers muscle building

In order to move the body, skeletal muscles are pulling on the skeleton. For efficient muscle and skeletal movements it is essential that the muscle contracts only along a defined axis, for instance for the leg movement along the thigh. Such a directed contraction is achieved by the myofibrils that span through the entire length of the muscle. At both ends, the myofibrils are anchored to the tendon cells, which themselves are linked to the skeleton. "Thereby, the entire force is transduced from the muscle to the skeleton," Frank Schnorrer describes.

Parents receiving heart disease diagnosis for infants need better information

LOS ANGELES – Based on a survey of parents of children with congenital heart disease, physicians delivering the diagnosis need to do a better job of showing compassion, ensuring parents understand all their options and providing easily understandable information, according to a new study published in the February edition of the journal, Pediatric Cardiology.

Salad at concession stands!?

Pep-rallies, the marching band, cheers and chants, and savory, indulgent foods sold at the concession stand are all beloved features of the American high school sports tradition.

Researchers find high acceptability of 3-colored raspberry jelly

CHICAGO—Raspberries are among the most popular berries in the world and are high in antioxidants that offer significant health benefits to consumers. The red raspberry is most commonly used in processed products like juices, jams, jellies and preserves because of its short shelf life. A new study in the Journal of Food Science, published by the Institute of Food Technologists (IFT), found that the production of a mixed raspberry jelly with black and yellow raspberries could be a good alternative to just one-colored jelly.

Gluten-free crackers made with hemp flour and decaffeinated green tea leaves

CHICAGO—The market for gluten-free foods with functional properties is growing immensely across virtually all food categories on a global level. The need to replace wheat proteins, fibers, and minerals is very important in order to provide a better selection and more nutritious food for consumers that belong to this segment of the population. At the same time, the use of by-products of the food processing industry as a source of functional ingredients such as antioxidants, phenols, fibers and proteins is on the rise, which supports global sustainability.

In the lab, scientists coax E. coli to resist radiation damage

MADISON, Wis. – Capitalizing on the ability of an organism to evolve in response to punishment from a hostile environment, scientists have coaxed the model bacterium Escherichia coli to dramatically resist ionizing radiation and, in the process, reveal the genetic mechanisms that make the feat possible.

Genes may thwart seniors' exercise gains

Bethesda, Md. (March 14, 2014)—Keeping strong and physically fit is crucial to maintaining independence among the elderly. Exercise has repeatedly been shown to reduce or slow age-related declines in physical function and is a widely recommended for seniors, but the way that older people respond to exercise varies widely. A new study by Thomas W. Buford et al. examines the ACE I/D gene and whether its variations—the ID, DD, and II genotypes—impact some seniors' ability to fully reap the benefits of exercise.

Patients should wait 6 to 12 weeks before driving after shoulder surgery

NEW ORLEANS--More than 53,000 Americans have total shoulder joint replacement (SJR) surgery each year, and yet the effects of this surgery on a patient's ability to safely drive a vehicle, and the appropriate recovery time before patients should return to driving, have yet to be determined.

3-D X-ray film: Rapid movements in real time

How does the hip joint of a crawling weevil move? A technique to record 3D X-ray films showing the internal movement dynamics in a spatially precise manner and, at the same time, in the temporal dimension has now been developed by researchers at ANKA, KIT's Synchrotron Radiation Source. The scientists applied this technique to a living weevil. From up to 100,000 two-dimensional radiographs per second, they generated complete 3D film sequences in real time or slow motion.

Big data tackles tiny molecular machines

HOUSTON – (March 13, 2014) –Open, feed, cut. Such is the humdrum life of a motor molecule, the subject of new research at Rice University, that eats and excretes damaged proteins and turns them into harmless peptides for disposal.

The why is obvious: Without these trash bins, the Escherichia coli bacteria they serve would die. And thanks to Rice, the how is becoming clearer.

Lurking in the darkness of Chinese caves 5 new species of armored spiders come to light

Armored spiders are medium to small species that derive their name from the complex pattern of the plates covering their abdomen strongly resembling body armor. Lurking in the darkness of caves In Southeast China, scientists discover and describe five new species of these exciting group of spiders. The study was published in the open access journal ZooKeys.

Dartmouth researchers develop new approach to chronic lymphocytic leukemia treatment

March 14, 2014 Lebanon, NH - Dartmouth researchers have developed a novel and unique approach to treating Chronic Lymphocytic Leukemia (CLL), a form of blood cancer that often requires repeated chemotherapy treatments to which it grows resistant. The researchers, led by Alexey V. Danilov, MD, PhD, assistant professor at the Geisel School of Medicine at Dartmouth and Hematologist-Oncologist at the Norris Cotton Cancer Center, modeled the lymph node microenvironment where CLL cells are found in the laboratory.

Bone lengthening technique proves useful in patients with cleft palate

Philadelphia, Pa. (March 14, 2014) - A technique called distraction osteogenesis can create increased length of the upper jaw in patients with cleft lip and palate deformities, reports a study in the March issue of The Journal of Craniofacial Surgery, edited by Mutaz B. Habal, MD, published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

New findings show link between diabetes and pancreatic cancer

In a new study published today in Annals of Surgical Oncology, clinicians worked with mathematicians to review data from 1973 to 2013 to conclude there was a time-dependent link between being diagnosed with diabetes and pancreatic cancer.

A review of 88 international studies to date, is the largest analysis on the topic published.

Dr Mehrdad Nikfarjam, liver, pancreas and biliary specialist from the Department of Surgery at the University of Melbourne said pancreatic cancer was often diagnosed when at an advanced, incurable stage.