Body

Cancer cells that can break out of a tumor and invade other organs are more aggressive and nimble than nonmalignant cells, according to a new multi-institutional nationwide study. These cells exert greater force on their environment and can more easily maneuver small spaces.

TEMPE, Ariz. – A team of student researchers and their professors from 20 laboratories around the country have gotten a new view of cancer cells. The work could shed light on the transforming physical properties of these cells as they metastasize, said Jack R. Staunton, a Ph.D. candidate at Arizona State University in the lab of Prof. Robert Ros, and the lead author of a paper reporting on the topic.

Philadelphia, PA, April 26, 2013 – Atkins Diet, Zone Diet, South Beach Diet, etc., etc., etc. Chances are you have known someone who has tried a high protein diet. In fact, according to the International Food Information Council Foundation, 50% of consumers were interested in including more protein in their diets and 37% believed protein helps with weight loss.

Scientists have long observed that species seem to have become increasingly capable of evolving in response to changes in the environment. But computer science researchers now say that the popular explanation of competition to survive in nature may not actually be necessary for evolvability to increase.

In a paper published this week in PLOS ONE, the researchers report that evolvability can increase over generations regardless of whether species are competing for food, habitat or other factors.

When predicting the outcome of a fight, the big guy doesn't always win suggests new research on fish. Scientists at the University of Exeter and Texas A&M University found that when fish fight over food, it is personality, rather than size, that determines whether they will be victorious. The findings suggest that when resources are in short supply personality traits such as aggression could be more important than strength when it comes to survival.

Los Angeles, CA (April 26, 2013) – Intermittent fasting is all the rage, but scientific evidence showing how such regimes affect human health is not always clear cut. Now a scientific review in the British Journal of Diabetes and Vascular Disease published by SAGE, suggests that fasting diets may help those with diabetes and cardiovascular disease, alongside established weight loss claims.

The flu is caused by an infection with the influenza virus, which mainly attacks the upper respiratory tract – the nose, throat and bronchi and rarely also the lungs. According to the World Health Organization (WHO), around five to 15 percent of the population are affected by upper respiratory tract infections during seasonal flu outbreaks, and between 250 000-500 000 people die of the illness every year. However, a main cause of death in people having the flu is actually a secondary infection with bacteria.

Influenza increases susceptibility to bacterial infection

Philadelphia, PA, April 25, 2013 – Weight loss is a topic of concern for nearly 36% of Americans who are considered obese. There are many barriers that can interfere with weight loss. For those attending face-to-face weight loss programs, barriers can include travel, conflict with work and home, need for childcare, and loss of anonymity.

Proteins, unlike diamonds, aren't forever. And when they wear out, they need to be degraded in the cell back into amino acids, where they will be recycled into new proteins. Researchers at Rockefeller University and the Howard Hughes Medical Institute have identified a new way that the cell's protein recycler, the proteasome, takes care of unwanted and potentially toxic proteins, a finding that has implications for treating muscle wasting, neurodegeneration and cancer.

Amsterdam, The Netherlands, Friday 26 April 2013: Regular exercise has been proven to reduce the chance of developing liver cancer in a world-first mice study that carries hope for patients at risk from hepatocellular carcinoma (HCC).

The research announced at the International Liver Congress™ 2013 involved two groups of mice fed a control diet and a high fat diet then divided into separate exercise and sedentary groups. The exercise groups ran on a motorised treadmill for 60 minutes per day, five days a week.

Sophia Antipolis, 24 April 2013: Up to 10 per cent of patients with high blood pressure are resistant to treatment, which puts them at increased risk of cardiovascular events, including heart attacks. Clinical trials show that catheter-based renal denervation reduces blood pressure in patients who do not respond to conventional drug therapy.

Researchers at the University of Maryland School of Medicine, Baltimore, have shown in a mouse model that infection with nematodes (also known as roundworms) can not only combat obesity but ameliorate related metabolic disorders. Their research is published ahead of print online in the journal Infection and Immunity.

Researchers have long suspected a correlation between hormone levels and libido, but now scholars at UC Santa Barbara, led by James Roney, a professor in the Department of Psychological and Brain Sciences, say they have actually demonstrated hormonal predictors for sexual desire. Their findings appear in the current issue of the journal Hormones and Behavior.

JUPITER, FL, April 25, 2013 –Despite decades of research, relatively little is known about the identity of RNA molecules that are transported as part of the molecular process underpinning learning and memory.