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Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes

...iseases (AASLD), researchers report their findings from the first-ever study examining the prognostic value of serum HBV DNA levels for patients with liver cancer undergoing chemotherapy. They found that patients with high pre-chemotherapy levels of HBV DNA had a significantly increased incidence of sever...

Soils offer new hope as carbon sink

...he said. The trials also measured gases given off from the soils and found significantly lower emissions of carbon dioxide and nitrous oxide (a greenhouse gas more than 300 times as potent as carbon dioxide). NSW DPI environmental scientist Steve Kimber said an added benefit for both the farmer who ap...

Math that powers spam filters used to understand how brain learns to move our muscles

...needs to develop new motor skills. The engineers, from Johns Hopkins, MIT and Northwestern, exploited the...earning” as they go to fine tune what they exclude from your in-box. The computer model, Shadmehr says, almost precisely duplicates the results of exper...

Threats to wild tigers growing

...f BioScience. Growing trade in folk medicines made from tiger parts and tiger skins, along with habitat lo...cle. Plans to make use of tiger parts harvested from farmed tigers in China represent an emerging threat, the authors argue. Any trade in tiger parts enc...

Researchers find 24 species believed new to science in Suriname rainforest

...sented in a report made public today, the findings from a 2005 expedition led by Conservation Internationa... most valuable natural assets.” The RAP survey, from Oct. 25-Nov. 6 in 2005, included 13 scientists from CI and partner universities and organizations wh...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...h shows that children could inherit genetic damage from a father who smokes. Canadian researchers have ...se or man, generate a constant supply of new sperm from self-renewing spermatogonial stem cells. Yauk, along with colleagues at Health Canada and McMaster ...

Old memory traces in brain may trigger chronic pain

Why do so many people continue to suffer from life-altering, chronic pain long after their injur... to significantly diminish the emotional suffering from pain as well as reduce the sensitivity of the formerly injured site. It also controlled nerve pain ...

Gene therapy delivery of nerve growth factors reverses erectile dysfunction in animal model

...s, estimates of the incidence of ED vary but range from 15 million to 30 million affected men in the Unite...ed with damage to the cavernous nerve that results from surgery for prostate cancer. Even if a patient receives a nerve-sparing procedure during surgery, re...

Discovery in orange cauliflower may lead to more nutritious crops

...ritious. Li, in collaboration with Joyce Van Eck from the Boyce Thompson Institute for Plant Research at Cornell, is currently working on transgenic potatoes, altering genes to increase both the metabolic sink and beta-carotene synthesis. Orange cauliflower was first discovered in a farmer's white cau...

Researchers track how spores break out of dormant state

...d germ cell wall that accompany the transformation from a spore to a vegetative cell. When starved of nut...ecedented resolution how the new bacterium emerges from the disintegrating spore. The new research, led by Lawrence Livermore National Laboratory scientists...

Modeling the restless brain

...0-second fluctuations of activity emerge naturally from much faster, chaotic neural interactions that typically last only a few milliseconds. "Our model suggests that the cortical resting state is not time-invariant, but instead contains rich and interrelated temporal structure at multiple time scales...

Simulations unravel outer membrane transport mechanism

...ranes. Their study, which includes a collaborator from the University of Virginia, appears online in the ...e needed to pull the luminal domain downward, away from the barrel" Second, how does the luminal domain respond to force in order to expose a permeation pat...

How sneaky HIV escapes cells

...esearchers removed the tethers or clumping signals from Gag it could no longer get out of the cell. However, if they were replaced with synthetic membrane anchors and clumping domains Gag regained its ability to get out of cells in exosomes. Gould speculates that cells may have initially developed exo...

New study reports hotel guests at risk from carbon monoxide poisoning

...erican Journal of Preventive Medicine, researchers from LDS Hospital report on the incidence and impact of...is 15-year interval…While the risk of CO poisoning from a one-night stay to an individual guest is small, the accumulated lifetime risk to individuals who t...

Snoring in children might be an allergic type disease

...und to be unrelated. The study cohort was drawn from participants in the Australian Childhood Asthma Pr... found in children who snore. Dr Nat Marshall, from Sydney’s Woolcock Institute of Medical Research said the study aimed to investigate whether the risk...

CSIRO scientists join fight to save 'Tassie devil'

...battle to save Australia’s iconic Tasmanian devils from the deadly cancer currently devastating devil populations. Researchers from CSIRO’s Livestock Industries’ Australian Animal Health Laboratory (AAHL), Textiles and Fibre Technol...

The insect vector always bites twice

The reality of the threat from vector-borne diseases has been recognized and the ...ecosystem changes, climatic variations or pressure from human activities. Malaria, sleeping sickness and so on lead to the death of millions of people in th...

A new plant-bacterial symbiotic mechanism promising for crop applications

...f the Rhizobium, genus, capable of fixing nitrogen from the air. When these bacteria come into contact wit...es, very little those of the tropics. The team from the IRD’s ‘Laboratoire des Symbioses Tropicales et Méditerranéennes’ and its partners (1), taking as...

Hormone helps mice 'hibernate,' survive starvation

...f starvation normally shift their main fuel source from carbohydrates to stored fats, promoting survival during foodless periods. Some mammals also enter a hibernation-like state of regulated hypothermia, known as torpor, which conserves energy. The molecular driver behind this reaction to starvation, ...

Research team identifies new Alzheimer's gene

... has been APOE4. In this latest study, researchers from seven organizations contributed to the genome-wide...x microarray technology. The team screened the DNA from 1,400 individuals who had been clinically assessed with Alzheimer’s prior death, and simultaneously ...

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