Body

SAN FRANCISCO, March 22, 2010 — Scientists in California are reporting for the first time that walnuts — already renowned as a rich source of omega-3 fatty acids that fight heart disease — reduce the size and growth rate of prostate cancer in test animals. They described their findings today at the 239th National Meeting of the American Chemical Society (ACS), being held here this week.

(SACRAMENTO, Calif.) — Walnut consumption slows the growth of prostate cancer in mice and has beneficial effects on multiple genes related to the control of tumor growth and metabolism, UC Davis and the U.S. Department of Agriculture Western Regional Research Center in Albany, Calif. have found.

The study, by Paul Davis, nutritionist in the Department of Nutrition and a researcher with the UC Davis Cancer Center, announced the findings today at the annual national meeting of the American Chemical Society in San Francisco.

If we don't have a choice in the matter, eating something that's considered healthy might simply lead us to feel hungry and eat something else, according to a new study in the Journal of Consumer Research.

Authors Stacey Finkelstein and Ayelet Fishbach (both University of Chicago) examined external controls in the domain of healthy eating—such as marketers who only offer shoppers healthy food samples or consumers who eat healthy meals in a cafeteria that only offers healthy alternatives.

A geologist from the University of Leicester is part of a team that has uncovered an ancient water flea-like creature from 425 million years ago – only the third of its kind ever to be discovered in ancient rocks.

Professor David Siveter, of the Department of Geology at the University of Leicester worked with Professor Derek Siveter at the Oxford University Museum of Natural History, Professor Derek Briggs at Yale University USA and Dr Mark Sutton at Imperial College to make the rare discovery.

Pediatric researchers analyzing DNA variations in type 1 diabetes and inflammatory bowel disease have found a complex interplay of genes. Some genes have opposing effects, raising the risk of one disease while protecting against the other. In other cases, a gene variant may act in the same direction, raising the risk for both diseases.

Motherhood appears to protect against suicide, with increasing numbers of children associated with decreasing rates of death from suicide, found an article in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/embargo/cmaj090813.pdf

Loss of height in postmenopausal women may indicate a vertebral fracture, states an article in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/embargo/cmaj090710.pdf

A Princeton University research team has demonstrated that all sweeteners are not equal when it comes to weight gain: Rats with access to high-fructose corn syrup gained significantly more weight than those with access to table sugar, even when their overall caloric intake was the same.

PITTSBURGH, MARCH 22, 2010 -- Significant numbers of today's women and underrepresented minority chemists and chemical engineers (40 percent) say they were discouraged from pursuing a STEM career (science, technology, engineering or mathematics) at some point in their lives, according to a new Bayer Corporation survey.

U.S. colleges are cited by them as the leading place in the American education system where discouragement happens (60 percent) and college professors as the individuals most likely responsible for the discouragement (44 percent).

A medical imaging technique called dual-energy computed tomography (CT) is an effective and reliable way to diagnose gout in the acute, emergency setting, according to a study published in the April issue of the American Journal of Roentgenology (www.ajronline.org). Dual-energy CT is an advanced medical imaging technique that can detect vessels and bones and display them in clear contrast to one another.

Reduced or no "padding" during ECG-triggered coronary CT angiography (CTA) results in a substantial reduction in radiation dose without affecting image quality and interpretability, according to a study in the April issue of the American Journal of Roentgenology (www.ajronline.org). ECG-triggered coronary CTA is a common, minimally invasive procedure that is used to evaluate blockages in the coronary arteries.

The imaging tests used in the diagnosis of possible pulmonary embolism (PE) vary by physician specialty and geographic region, which suggests that some of this imaging may be inappropriate, according to a study in the April issue of the American Journal of Roentgenology (www.ajronline.org).

INDIANAPOLIS – Living wills and surrogate decision makers account for only a portion of the many factors weighed by physicians when making medical decisions for hospitalized patients lacking the capability to make their own decisions, according to a recently published study.

Researchers who queried 281 physicians report their conclusions in a study that appears in the March 2010 issue of the Journal of the American Geriatrics Society.

WASHINGTON -- Tackling the increasing rates of cardiovascular disease in developing nations will require input from multiple partners, including the business community and international companies as well as global health and development agencies and the governments of these countries, says a new report from the Institute of Medicine. More than 80 percent of deaths related to cardiovascular disease worldwide now occur in low- and middle-income countries; nearly 30 percent of all deaths in developing nations are caused by heart and circulatory disease.

A genetic accident in the sea more than 500 million years ago has provided new insight into diabetes, according to research from Queen Mary, University of London.

Professor Maurice Elphick, from Queen Mary's School of Biological and Chemical Sciences, says his findings could help to explain a rare form of the disease that causes sufferers to urinate more than three litres every day.