Body

Minke whales lunge 100 times/hour to feed under sea ice

Highly manoeuvrable and built like torpedoes, minke whales are the most common whales in Antarctic waters, yet the animals could be living on a knife edge as their sea-ice homes dwindle rapidly. 'Sea ice in the area around the Antarctic Peninsula has decreased dramatically in the last 30 years', warns Ari Friedlaender from Oregon State University, USA, adding, 'yet we do not know how critical the sea ice is as a habitat for the whales'.

Estimated 1.65 million global cardiovascular deaths each year linked to high sodium consumption

BOSTON — More than 1.6 million cardiovascular-related deaths per year can be attributed to sodium consumption above the World Health Organization's recommendation of 2.0g (2,000mg) per day, researchers have found in a new analysis evaluating populations across 187 countries. The findings were published in the August 14 issue of The New England Journal of Medicine.

Next generation sequencing shakes up genotype/phenotype correlation, disease discoveries

HOUSTON – (Aug. 13, 2014) – With the ability to use next generation sequencing technology, researchers have a broadened understanding of the association of genetic changes and disease causation to a much greater resolution, driving new discoveries, said clinical geneticists from Baylor College of Medicine in Houston and the University of Montreal in Canada in a perspective published today in the New England Journal of Medicine.

Common household chemicals decrease reproduction in mice, Virginia Tech study finds

Virginia Tech researchers who were using a disinfectant when handling mice have discovered that two active ingredients in it cause declines in mouse reproduction.

Although the chemicals responsible for the declines are common in household cleaning products and disinfectants used in medical and food preparation settings, including hand sanitizers, academic scientists have never published a rigorous study, until now, on their safety or toxicity.

Exercise associated with reduced risk of breast cancer in African-American women

(Boston)—Regular exercise, including brisk walking, is associated with a decrease in the incidence of breast cancer in African American women. In a recently published study in Cancer Epidemiology, Biomarkers & Prevention, researchers from Boston University's Slone Epidemiology Center found strong evidence linking physical exercise to a lower rate of breast cancer in African American women, a group in which previous evidence has been lacking.

New material could enhance fast and accurate DNA sequencing

CHAMPAIGN, Ill. — Gene-based personalized medicine has many possibilities for diagnosis and targeted therapy, but one big bottleneck: the expensive and time-consuming DNA-sequencing process.

Now, researchers at the University of Illinois at Urbana-Champaign have found that nanopores in the material molybdenum disulfide (MoS2) could sequence DNA more accurately, quickly and inexpensively than anything yet available.

Bones from nearly 50 ancient flying reptiles discovered

Scientists discovered the bones of nearly 50 winged reptiles from a new species, Caiuajara dobruskii, that lived during the Cretaceous in southern Brazil, according to a study published August 13, 2014 in the open-access journal PLOS ONE by Paulo Manzig from Universidade do Contestado, Brazil, and colleagues.

Embalming study 'rewrites' chapter in Egyptian history

The origins of mummification may have started in ancient Egypt 1,500 years earlier than previously thought, according to a study published August 13, 2014 in the open-access journal PLOS ONE by Stephen Buckley from University of York and colleagues from Macquarie University and University of Oxford.

Little penguins forage together

Most little penguins may search for food in groups, and even synchronize their movements during foraging trips, according to a study published August 13, 2014 in the open-access journal PLOS ONE by Maud Berlincourt and John Arnould from Deakin University in Australia.

Young blue sharks use central North Atlantic nursery

Blue sharks may use the central North Atlantic as a nursery prior to males and females moving through the ocean basin in distinctly different patterns, according to a study published August 13, 2014 in the open-access journal PLOS ONE by Frederic Vandeperre from University of the Azores, Portugal, and colleagues.

Bacterial biosurgery shows promise for reducing the size of inoperable tumors

Kansas City, MO. — Deep within most tumors lie areas that remain untouched by chemotherapy and radiation. These troublesome spots lack the blood and oxygen needed for traditional therapies to work, but provide the perfect target for a new cancer treatment using bacteria that thrive in oxygen-poor conditions. Now, researchers have shown that injections of a weakened version of one such anaerobic bacteria -- the microbe Clostridium novyi -- can shrink tumors in rats, pet dogs, and a human patient.

Embalming study 'rewrites' key chapter in Egyptian history

Researchers from the Universities of York, Macquarie and Oxford have discovered new evidence to suggest that the origins of mummification started in ancient Egypt 1,500 years earlier than previously thought.

The scientific findings of an 11-year study by a researcher in the Department of Archaeology at York, and York's BioArCh facility, and an Egyptologist from the Department of Ancient History at Macquarie University, push back the origins of a central and vital facet of ancient Egyptian culture by over a millennium.

Injected bacteria shrink tumors in rats, dogs and humans

A modified version of the Clostridium novyi (C. noyvi-NT) bacterium can produce a strong and precisely targeted anti-tumor response in rats, dogs and now humans, according to a new report from Johns Hopkins Kimmel Cancer Center researchers.

Treatment with lymph node cells controls dangerous sepsis in animal models

An immune-regulating cell present in lymph nodes may be able to halt severe cases of sepsis, an out-of-control inflammatory response that can lead to organ failure and death. In the August 13 issue of Science Translational Medicine, a multi-institutional research team reports that treatment with fibroblastic reticular cells (FRCs) significantly improved survival in two mouse models of sepsis, even when delivered after the condition was well established. Even after treatment with antibiotics, sepsis remains a major cause of death.

Stimuli-responsive drug delivery system prevents transplant rejection

Boston, MA – Following a tissue graft transplant—such as that of the face, hand, arm or leg—it is standard for doctors to immediately give transplant recipients immunosuppressant drugs to prevent their body's immune system from rejecting and attacking the new body part. However, there are toxicities associated with delivering these drugs systemically, as well as side effects since suppressing the immune system can make a patient vulnerable to infection.