Body

Sales of herbal dietary supplements have skyrocketed by 100 percent in the United States during the last 10 years, but most people don’t consider evidence-based indications before using them, according to a University of Iowa study.

Two-thirds of people who use herbs don’t do so in accordance with guidelines, according to the article. Meanwhile, sales of herbal supplements reached $18.8 billion in 2003, up 100 percent from $8.8 billion in 1994. Those sales are subject to minimal federal regulations.

A fundamental genetic mechanism that shuts down an important gene in healthy immune system cells has been discovered that could one day lead to new therapies against infections, leukemia and other cancers. Results of a University of Pittsburgh School of Medicine study on the mechanism, called a somatic stop-codon mutation, are being reported today in the online journal PLoS ONE.

The Fumanya site, in the Bergueda region of central Catalonia, is so delicate that experts cannot get physically close enough to the tracks to examine them.

In the years since the tracks were discovered they have been exposed to the elements, and as a result are severely weathered and eroding at a rapid rate.

To make things even more difficult, the tracks are imprinted into near-vertical rock faces.

Palaeontologists feared the tracks could be lost forever - but a permanent and detailed record has now been created using cutting-edge equipment.

Scientists examining documents dating back 3,500 years say they have found proof that the origins of modern medicine lie in ancient Egypt and not with Hippocrates and the Greeks.

The research team from the KNH Centre for Biomedical Egyptology at The University of Manchester discovered the evidence in medical papyri written in 1,500BC – 1,000 years before Hippocrates was born.Will it become the Egyptian Oath?

In the eternal conflict between friends and parents, friends will often win because they highlight the positive aspects of sex.

Parental communication more often than not focuses on the negative aspects of sex, write Marina Epstein and L. Monique Ward from The University of Michigan.

A research team led by Carole Thivierge, from Université Laval’s Institute of Nutraceutics and Functional Foods, shows that omega-3 fatty acids from fish oil have a positive effect on the metabolism of muscle proteins. This finding, published in a recent edition of the Journal of Physiology, could have significant implications in the fields of animal farming as well as human health.

No snowflake in an avalanche takes the blame.

Using the same database that the Centers for Disease Control and Prevention (CDC) uses to confirm the rise in obesity rates, researchers have concluded that 100 percent juice is not associated with young children being overweight or at risk for becoming overweight.

The research abstract, presented today at the Pediatric Academic Societies’ annual meeting in Toronto, looked at dietary intakes of 3,618 children ages 2-11 using the well-known National Health and Nutrition Examination Survey (NHANES).

Call it sperm competition.

According to a study appearing in Current Directions in Psychological Science, sexual characteristics exhibited by human males indicate that men have evolved to deliver their sperm more effectively to females who have multiple partners to choose from.

Temple University School of Medicine researchers have developed a new biosensor that sniffs out explosives and could one day be used to detect landmines and deadly agents, such as sarin gas.

Researchers at the University of California, San Diego (UCSD) School of Medicine have developed new technology which, combined with proteomics – the large-scale study of the structure and function of proteins and their functions – has allowed them to map an extensive network of the signaling proteins that control cell movement.