LOS ANGELES (STRICTLY EMBARGOED UNTIL 2 P.M. EDT ON JULY 16, 2014) – Cardiologists at the Cedars-Sinai Heart Institute have developed a minimally invasive gene transplant procedure that changes unspecialized heart cells into "biological pacemaker" cells that keep the heart steadily beating. The laboratory animal research, published online and in today's print edition of the peer-reviewed journal Science Translational Medicine, is the result of a dozen years of research with the goal of developing biological treatments for patients with heart rhythm disorders who currently ...

CHAMPAIGN, Ill. — A survey of 142 men and 516 women with experience in field studies in anthropology, archaeology, geology and other scientific disciplines reveals that many of them – particularly the younger ones – suffered or witnessed sexual harassment or sexual assault while at work in the field. A majority of the survey respondents (64 percent) said they had experienced sexual harassment (inappropriate sexual remarks, comments about physical beauty or jokes about cognitive sex differences, for example). And more than 20 percent reported they had been the victims ...

PHILADELPHIA—Researchers from the Perelman School of Medicine at the University of Pennsylvania found that patients taking prescription potassium supplements together with loop diuretics for heart failure have better survival rates than patients taking diuretics without the potassium. Moreover, the degree of benefit increases with higher diuretic doses. The team, including senior author Sean Hennessy, PharmD, PhD, associate professor of epidemiology in Penn's Center for Clinical Epidemiology and Biostatistics (CCEB), report their findings in a study published online July ...

New research has identified a potential cause of and a better diagnostic method for preeclampsia, one of the most deadly and poorly understood pregnancy-related conditions in the world. The international team, led by researchers at Nationwide Children's Hospital, discovered that the disease may result from a collection of protein mishaps like those associated with Alzheimer's disease. Their findings, released today by Science Translational Medicine, have already led to an affordable, fast and accurate urine test that could revolutionize the diagnosis of preeclampsia in ...

VIDEO: This video is a sample of UTS walking patterns. Click here for more information. AUSTIN, Texas -- Contradicting earlier claims, "The Family That Walks on All Fours," a group of quadrupedal humans made famous by a 2006 BBC documentary, have simply adapted to their inability to walk upright and do not represent an example of backward evolution, according to new research by Liza Shapiro, an anthropologist at The University of Texas at Austin. Five siblings in the family, ...

In a world-first study published today, researchers say dredging activity near coral reefs can increase the frequency of diseases affecting corals. "At dredging sites, we found more than twice as much coral disease than at our control sites," says the lead author of the study, Joe Pollock, a PhD candidate from the ARC Centre of Excellence for Coral Reef Studies (Coral CoE) at James Cook University (JCU) and the Australian Institute of Marine Science (AIMS). "Corals require both light and food to survive," Pollock explains. "And unfortunately, dredging impacts corals ...

This news release is available in French. This news release is available in French. This news release is available in French. An international team of researchers has found new evidence that our prehistoric ancestors had a detailed understanding of plants long before the development of agriculture. By extracting chemical compounds and microfossils from dental calculus (calcified dental plaque) from ancient teeth, the researchers were able to provide an entirely new perspective on our ancestors' diets. Their research suggests that purple nut sedge (Cyperus ...

A new study may provide evidence that our prehistoric ancestors understood plant consumption and processing long before the development of agriculture, according to a study published July 16, 2014 in the open-access journal PLOS ONE by Stephen Buckley from University of York and colleagues. Evidence of plant consumption before the adoption of agriculture is difficult to find; such evidence is meaningful for understanding how much prehistoric people knew about the ecology and potential therapeutic properties of plants. Scientists in this study extracted and analyzed chemical ...

Rochester, MN, July 16, 2014 – High body mass index (BMI) is associated with multiple cardiovascular diseases. However, emerging data suggest that there is an "obesity paradox," that being overweight may actually protect patients from cardiovascular mortality. Investigators have now confirmed that the risk of total mortality, cardiovascular mortality, and myocardial infarction is highest among underweight patients, while cardiovascular mortality is lowest among overweight patients, according to two reports published today in Mayo Clinic Proceedings. Currently more than ...

An international team of paleontologists has identified the exquisitely preserved brain in the fossil of one of the world's first known predators that lived in the Lower Cambrian, about 520 million years ago. The discovery revealed a brain that is surprisingly simple and less complex than those known from fossils of some of the animal's prey. The find for the first time identifies the fossilized brain of what are considered the top predators of their time, a group of animals known as anomalocaridids, which translates to "abnormal shrimp." Long extinct, these fierce-looking ...

VIDEO: Salk scientists explain the implications of their latest finding and how the treatment reverses symptoms of type 2 diabetes in mice without side effects. Click here for more information. LA JOLLA—In mice with diet-induced diabetes—the equivalent of type 2 diabetes in humans—a single injection of the protein FGF1 is enough to restore blood sugar levels to a healthy range for more than two days. The discovery by Salk scientists, published today in the journal Nature, could ...

New University of Alaska Fairbanks research indicates that arctic thermokarst lakes stabilize climate change by storing more greenhouse gases than they emit into the atmosphere. Countering a widely-held view that thawing permafrost accelerates atmospheric warming, a study published this week in the scientific journal Nature suggests arctic thermokarst lakes are 'net climate coolers' when observed over longer, millennial, time scales. "Until now, we've only thought of thermokarst lakes as positive contributors to climate warming," says lead researcher Katey Walter Anthony, ...

Scientists may be able to entomb the malaria parasite in a prison of its own making, researchers at Washington University School of Medicine in St. Louis report July 16 in Nature. As it invades a red blood cell, the malaria parasite takes part of the host cell's membrane to build a protective compartment. To grow properly, steal nourishment and dump waste, the parasite then starts a series of major renovations that transform the red blood cell into a suitable home. But the new research reveals the proteins that make these renovations must pass through a single pore ...

EPFL researchers have a better understanding of the asteroid Vesta and its internal structure, thanks to numerical simulations and data from the space mission Dawn. Their findings, published today in Nature, question contemporary models of rocky planet formation, including that of Earth. With its 500 km diameter, the asteroid Vesta is one of the largest known planet embryos. It came into existence at the same time as the Solar System. Spurring scientific interest, NASA sent the Dawn spacecraft into Vesta's orbit for one year between July 2011 and July 2012. Data gathered ...

Typhoon Rammasun passed through the central Philippines overnight and NASA satellite imagery showed that the storm's center moved into the South China Sea. NASA's TRMM satellite showed the soaking rains that Rammasun brought to the Philippines as it tracked from east to west. Before Rammasun made landfall, the Tropical Rainfall Measuring Mission or TRMM satellite passed over the storm and measured cloud heights and rainfall rates. On July 14, 2014 at 18:19 UTC (2:19 p.m. EDT), TRMM spotted powerful, high thunderstorms reaching heights of almost 17km (10.5 miles). Rain ...

Research led by the University of York has highlighted the potential cancer risk in non-smokers – particularly young children – of tobacco smoke gases and particles deposited to surfaces and dust in the home. Until now, the risks of this exposure known as 'third hand tobacco smoke' have been highly uncertain and not considered in public policy. However, a new study published in the journal Environment International, has estimated for the first time the potential cancer risk by age group through non-dietary ingestion and dermal exposure to third hand smoke. The results ...

Irvine, Calif., July 16, 2014 – The common pencil squid (Loliginidae) may hold the key to a new generation of medical technologies that could communicate more directly with the human body. UC Irvine materials science researchers have discovered that reflectin, a protein in the tentacled creature's skin, can conduct positive electrical charges, or protons, making it a promising material for building biologically inspired devices. Currently, products such as retinal implants, nerve stimulators and pacemakers rely on electrons – particles with negative charges – to transmit ...

PORTLAND, Ore. (July 16, 2014)—Thirteen scientists received a total of $1.05 million in funding from the National Psoriasis Foundation for projects that aim to identify new treatments and a cure for psoriasis—an autoimmune disease that appears on the skin, affecting 7.5 million Americans—and psoriatic arthritis—an inflammatory arthritis that affects the joints and tendons, occurring in up to 30 percent of people with psoriasis. Learn more about the NPF research grant program: http://www.psoriasis.org/research. This year, three scientists each received a two-year, $200,000 ...

VIDEO: A 70-foot-long, 52-ton concrete bridge survived a series of earthquakes in the first multiple-shake-table experiment in the University of Nevada, Reno's new Earthquake Engineering Lab, the newest addition to the... Click here for more information. RENO, Nev. – A 70-foot-long, 52-ton concrete bridge survived a series of earthquakes in the first multiple-shake-table experiment in the University of Nevada, Reno's new Earthquake Engineering Lab, the newest addition to the ...

Fires are a way of life during the hot, dry summer days, but that does not mean they are ever taken for granted. Thousands of lightning strikes Sunday (7/13) and early Monday (7/14) probably started most of the wildfires, which are burning on private, public and reservation land. Dozens of fires are plaguing the forest areas in the state of Oregon. In this image, are shown the Buzzard Fire, the Shaniko Butte fire, the Bridge 99 Complex fire, and the Saddle Draw Fire. The Buzzard Complex fire began as a lightning strike. Difficult terrain, combined with extremely dry ...

Tempe, Ariz. -- A heat-sensing camera designed at Arizona State University has provided data to create the most detailed global map yet made of Martian surface properties. The map uses data from the Thermal Emission Imaging System (THEMIS), a nine-band visual and infrared camera on NASA's Mars Odyssey orbiter. A version of the map optimized for scientific researchers is available at the U.S. Geological Survey (USGS). The new Mars map was developed by the Geological Survey's Robin Fergason at the USGS Astrogeology Science Center in Flagstaff, Ariz., in collaboration ...

Rapidly accumulating data on the molecular sequences of animal genes are overturning some standard zoological narratives about how major animal groups evolved. The turmoil means that biologists should adopt guidelines to ensure that their evolutionary scenarios remain consistent with new information—which a surprising number of scenarios are not, according to a critical overview article to be published in the August issue of BioScience and now available with Advance Access. The article, by Ronald A Jenner of the Natural History Museum in London, describes how evolutionary ...

Obese women were better able to identify cues that predict monetary rewards than those that predict food rewards, according to a study by Yale School of Medicine researchers and their colleagues in the journal Current Biology. The findings could result in specific behavioral interventions to treat obesity. "Instead of focusing on reactions to the food itself, such interventions could focus on modifying the way in which obese individuals learn about the environment and about cues predicting food rewards," said lead author Ifat Levy, assistant professor of comparative medicine ...

EUGENE, Ore. – (July 16, 2014) – A new study by researchers at the University of Oregon published today in the journal Neuron describes a brainstem circuit in mice that may help explain how active movement impacts the way the brain processes sensory information. "Previous studies have examined changes in the visual cortex of mice during running. What was unknown was how do running and vision get linked together in the first place?" said Cristopher Niell, a biology professor in the Institute of Neuroscience and the senior author on the paper "Identification of a Brainstem ...

CORAL GABLES, Fla. (July 14, 2014) -- When envisioning a new structure, engineers often have to balance design choices against the environmental impact of materials used. It is estimated that 40 to 50 percent of greenhouse gases are produced by the construction industry, according to the California Integrated Waste Management Board. Lessening the impact of construction on the environment is a work in progress. Researchers at the University of Miami (UM) and the University of Milwaukee School of Engineering are searching for designs and materials that are less harmful ...