Body

From seed to nuts: human ancestor's face evolved to eat survival foods

TALLAHASSEE, Fla. -- The facial structure of an ancient relative of modern humans may have evolved to allow them to eat large, hard nuts and seeds as part of a survival strategy, according to a new study by an international team of researchers that includes Florida State University's Dennis E. Slice.

Early whales gave birth on land

Two newly described fossil whales--a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea.

The 47.5 million-year-old fossils, discovered in Pakistan in 2000 and 2004, are described in a paper published Feb. 4, 2009, in the online journal PLoS.

How much is the world spending on neglected disease research and development?

The first comprehensive survey of global spending on neglected disease R&D, published in this week's PLoS Medicine, finds that just over $US 2.5 billion was invested into R&D of new products in 2007, with three diseases—HIV/AIDS, TB, and malaria—receiving nearly 80% of the total.

However, the survey finds that many neglected diseases, responsible for killing millions of people in developing countries, are significantly underfunded.

Early whales gave birth on land, fossil find reveals

ANN ARBOR, Mich.---Two newly described fossil whales---a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea.

The 47.5 million-year-old fossils, discovered in Pakistan in 2000 and 2004 and studied at the University of Michigan, are described in a paper published Feb. 4 in the online journal PLoS.

Resting heart rate can predict heart attacks in women

A simple measurement of resting pulse predicts coronary events in women independently of physical activity and common risk factors, such as smoking and alcohol consumption, finds a study published on bmj.com today.

Previous studies have shown that resting heart rate predicts coronary events in men. But, for women, the relationship between heart rate and coronary events or stroke remains uncertain.

What's the ideal relationship between the drug industry, health professionals and patients?

The relationship between the drug industry, academia, healthcare professionals, and patients is widely believed to be at an all time low. Five contrasting views, published on bmj.com today, discuss what the ideal relationship should be and what steps need to be taken to achieve it.

Marcia Angell, Senior Lecturer in Social Medicine at Harvard Medical School believes there should be no relationship between the drug industry and either prescribers or patients.

Minnesota Partnership targets aphids

ROCHESTER, Minn. -- Medical scientists in Minnesota are focusing their expertise on a pest that destroys soybeans. The goal of the Minnesota Partnership team is to develop an insecticide that is safe for humans but will kill the soybean aphid, a bug that's been ravaging Minnesota crops. Their findings appear in the journal Public Library of Science -- PLoS One.

Genetics may predict risk for relapse among alcohol-dependent patients

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Chronic drinking causes more liver injury than acute or binge drinking

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Cardiac imaging method may expose patients to high radiation dose

Use of the imaging technique known as cardiac computed tomography (CT) angiography (CCTA) has the potential to expose patients to high doses of radiation, and methods available to reduce radiation dose are not frequently used, according to a study in the February 4 issue of JAMA.

Older adults who experience osteoporotic fracture have increased risk of death for 5-10 years

Women and men age 60 years or older who have a low-trauma osteoporotic fracture have an increased risk of death for the following 5 to 10 years, compared to the general population, and those who experience another fracture increase their risk of death further for an additional 5 years, according to a study in the February 4 issue of JAMA.

Dialysis patients residing at higher altitude have lower rate of death

Compared to dialysis patients living near sea level, dialysis patients living at an altitude higher than 4,000 feet have a 12-15 percent lower rate of death, according to a study in the February 4 issue of JAMA.

Researchers disprove 15-year-old theory about the nervous system

COLUMBIA, Mo. – A delay in traffic may cause a headache, but a delay in the nervous system can cause much more. University of Missouri researchers have uncovered clues identifying which proteins are involved in the development of the nervous system and found that the proteins previously thought to play a significant role, in fact, do not. Understanding how the nervous system develops will give researchers a better understanding of neurological diseases, such as multiple sclerosis and Charcot-Marie-Tooth disorders.

USC study finds that green tea blocks benefits of cancer drug

Contrary to popular assumptions about the health benefits of green tea, researchers at the University of Southern California (USC) have found that the widely used supplement renders a cancer drug used to treat multiple myeloma and mantle cell lymphoma completely ineffective in treating cancer.

Radiofrequency treatment better than ethanol injection for small liver tumors

A new review of four randomized controlled trials that directly compared two different treatments for small inoperable liver tumors has found that radiofrequency ablation (RFA) significantly improves patient survival compared to the standard therapy of percutaneous ethanol injection (PEI). These findings are in the February issue of Hepatology, a journal published by John Wiley & Sons on behalf of the American Association for the Study of Liver Diseases (AASLD).