Body

Cell mechanics may hold key to how cancer spreads and recurs

CHAMPAIGN, Ill. — Cancer cells that break away from tumors to go looking for a new home may prefer to settle into a soft bed, according to new findings from researchers at the University of Illinois.

Climate warming may have unexpected impact on invasive species, Dartmouth study finds

Rising temperatures may be seen as universally beneficial for non-native species expanding northward, but a Dartmouth College study suggests a warmer world may help some invaders but hurt others depending on how they and native enemies and competitors respond.

The study, which sheds light on the uncertain relationship between climate change and invasive species, appears in the journal Ecology. A PDF of the study is available on request.

Losing weight won't make you happy

Weight loss significantly improves physical health but effects on mental health are less straightforward, finds new UCL research funded by Cancer Research UK.

In a study of 1,979 overweight and obese adults in the UK, people who lost 5% or more of their initial body weight over four years showed significant changes in markers of physical health, but were more likely to report depressed mood than those who stayed within 5% of their original weight.

Poor hearing confines older adults to their homes

Vision and hearing problems reduce the active participation of older people in various events and activities. This was observed in two studies carried out by the Gerontology Research Center.

Impaired vision and hearing make it difficult to interact in social situations. However, social relationships and situations in which there is an opportunity to meet and interact with other people are important for older adults' quality of life.

Caffeine intake associated with lower incidence of tinnitus

Boston, MA – New research from Brigham and Women's Hospital (BWH) finds that higher caffeine intake is associated with lower rates of tinnitus, often described as a ringing or buzzing sound in the ear when there is no outside source of the sounds, in younger and middle-aged women. This research is published in the August issue of the American Journal of Medicine.

Study shows low uptake of colorectal cancer screening by African-Americans in a Veterans Affairs health-care network

DOWNERS GROVE, Ill. – August 6, 2014 – According to researchers in California, African Americans' participation in colorectal cancer screening is low and the use of colonoscopy infrequent despite similar access to care across races in a Veterans Affairs healthcare system. The researchers also found that having established primary care at the time of screening eligibility significantly increased screening uptake.

Excavation of ancient well yields insight into Etruscan, Roman and medieval times

TALLAHASSEE, Fla. -- During a four-year excavation of an Etruscan well at the ancient Italian settlement of Cetamura del Chianti, a team led by a Florida State University archaeologist and art historian unearthed artifacts spanning more than 15 centuries of Etruscan, Roman and medieval civilization in Tuscany.

"The total haul from the well is a bonanza," said Nancy de Grummond, the M. Lynette Thompson Professor of Classics at Florida State. De Grummond, who has performed work at the site since 1983, is one of the nation's leading scholars of Etruscan studies.

Newsroom journalists at increased risk of PTSD and depression from images of extreme violence

Journalists working with images of extreme violence submitted to newsrooms by the public are at increased risk of adverse psychological consequences, including post-traumatic stress disorder. New research, published today by JRSM Open, shows that frequent, repetitive viewing of traumatic images by journalists working with 'live' or User Generated Content material can be closely linked to anxiety, depression, PTSD and alcohol consumption.

Study: Attending a more selective college doesn't mean a better chance of graduating

WASHINGTON, D.C., August 7, 2014 ─ It is commonly argued that students should attend the most academically selective college possible, since, among other reasons, highly selective institutions graduate students at higher rates. However, is it the institutions themselves that succeed in getting students through to degree completion, or is degree completion merely a result of the quality of the students entering the institutions?

Study: Arctic mammals can metabolize some pesticides, limits human exposure

Fortunately, you are not always what you eat – at least in Canada's Arctic.

New research from the University of Guelph reveals that arctic mammals such as caribou can metabolize some current-use pesticides (CUPs) ingested in vegetation.

This limits exposures in animals that consume the caribou – including humans.

Risks to penguin populations analyzed

A major study of all penguin species suggests the birds are at continuing risk from habitat degradation. Writing in the journal, Conservation Biology, a group of internationally renowned scientists recommends the adoption of measures to mitigate against a range of effects including; food scarcity (where fisheries compete for the same resources), being caught in fishing nets, oil pollution and climate change. This could include the establishment of marine protected areas, although the authors acknowledge this might not always be practical.

Study shines new light on genetic alterations of aggressive breast cancer subtype

HOUSTON – (Aug. 7, 2014) – Researchers from the Lester and Sue Smith Breast Center at Baylor College of Medicine have uncovered new information about the genetic alterations that may contribute to the development of a subtype breast cancer typically associated with more aggressive forms of the disease and higher recurrence rates.

Mutations in a gene essential for cell regulation cause kidney cancer in children

Mutations in a gene that helps regulate when genes are switched on and off in cells have been found to cause rare cases of Wilms tumour, the most common kidney cancer occurring in children.

A study led by scientists at The Institute of Cancer Research, London, identified mutations in the CTR9 gene in six children with Wilms tumour.

Wilms tumour affects around one in 10,000 children and usually develops before the age of five years. Treatment of Wilms tumour is very successful, with 90 per cent of children being cured.

Man-made noise makes fish more susceptible to predators

Despite their reputation as slippery customers, a new study has shown that eels are losing the fight to survive when faced with marine noise pollution such as that of passing ships.

Scientists from the Universities of Exeter and Bristol found that fish exposed to playback of ship noise lose crucial responses to predator threats.

Cheese still laden with salt, despite many products meeting reduction targets

The salt content of cheese sold in UK supermarkets remains high, despite many products meeting the recommended government targets on salt reduction, finds research published in the online journal BMJ Open.

And salt content varies widely, even within the same type of cheese, the findings show, prompting the researchers to call for much tougher targets on salt lowering.