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Tag: "concern" at biology news

Enzyme delivered in smaller package protects cells from radiation damage

...rogenitor stem cells. However, there is increasing concern that such high doses of radiation may have long-term negative effects on healthy tissues and organs, such as the kidney, liver and thyroid gland. Based on previous studies showing that intravenous gene therapy delivery of the enzyme manganese sup...

A new plant-bacterial symbiotic mechanism promising for crop applications

...ver, the symbiotic processes studied predominantly concern the leguminous plants of temperate zones, very little those of the tropics. The team from the IRD’s ‘Laboratoire des Symbioses Tropicales et Méditerranéennes’ and its partners (1), taking as model a symbiosis between a tropical aquatic legume, Ae...

Researchers examine carbon capture and storage to combat global warming

...g-term, geological time periods.'' The greatest concern surrounding carbon dioxide storage is the potentia...an be near permanent,'' Benson said. Of greater concern to the researchers are the potential risks of carbon sequestration to human health, mainly through a...

Warning from Asian bees

...me a serious pest, not just for beekeepers, but of concern to agriculture generally. Bees play a big role in the food supply chain. “In the big scheme of things, honey's a bit of a minor product, really,” NSW Department of Primary Industries apiarist Dr Doug Somerville said. “Roughly one-third of th...

AAAS decries latest stem cell veto

...ident first announced U.S. policy in 2001. "Our concern is that this action has the potential to delay development of important new therapies by cutting off a promising avenue of research," said Alan I. Leshner, the chief executive officer of AAAS and executive publisher of the journal Science . The p...

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...a moving organ such as the lung or heart is a main concern in radiation treatment or imaging of tumors that are affected by such organ movement," Xu said. "In order to determine accurate and effective radiation dosages, doctors must consider such issues as the breathing function and air volume change that ar...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

...ree of smallpox in 1980. But because of the recent concern about biowarfare and bioterrorism throughout the world, the U.S. government is making efforts to improve its ability to protect its citizens in the event of a bioterrorist attack involving the smallpox virus (Variola major virus). This study at Sa...

HIVMA opposes The Gambia's unproven AIDS remedy

...the Society for AIDS in Africa in expressing great concern regarding this practice. "There currently is no cure for HIV/AIDS," said HIVMA Chair Daniel R. Kuritzkes, MD. "President Jammeh is giving people false hope, while at the same time making them stop treatment that has been demonstrated to save lives." ...

Madagascan tropical forests return thanks to better management and well-defined ownership

..." says Elmqvist. The loss of tropical forests is a concern worldwide since these forests harbor more than 50 % of the terrestrial species richness in the world and have a large importance in global climate regulation. Estimates of tropical forest loss are still uncertain and a 50 % margin of error appears po...

US control strategies may make flu epidemics worse, UCLA study shows

...ople will die. But among health experts, a bigger concern than the seasonal flu is an outright flu pandemic, such as a human strain of avian flu. And officials say it is not a question of if such a health crisis will come but when. Are we prepared? In a word, say three UCLA researchers, no. In a report t...

WHO data confirms low level of resistance to Tamiflu

...ossible development of anti-viral resistance is of concern for pandemic planning and preparedness. However, to date, there have only been three documented cases of Tamiflu resistance to avian influenza H5N1. 3,4 In one case, the prophylactic dose (75 mg daily) rather than the treatment dose (75 mg twice dail...

NIAID expands capability for influenza research and surveillance

...reat of an influenza pandemic is a major source of concern for the public health community,?says NIAID Director Anthony S. Fauci, M.D. “The new NIAID Centers of Excellence for Influenza Research and Surveillance will help expand the federal government’s existing international and domestic influenza surveilla...

Study suggests some drug resistance to influenza B medications

...influenza B than against influenza A, an important concern is whether suboptimal dosing for these viruses will lead to increased selection of viruses with high-level resistance.? “Influenza viruses evolve rapidly and nimbly, which compels ongoing investigation of antiviral therapies that use alternative me...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...enes relatively easily, and Lee explained that the concern is that drug resistance genes from bacteria that infect poultry could be passed on to bacteria that cause human illness. With these resistance genes, human bacterial illness could become harder to treat. These concerns led the European Union to ba...

Imaging pinpoints brain regions that 'see the future'

...the abstract sense (e.g., that global warming is a concern for the future), but they cannot vividly envision themselves in a specific future scenario. "The same is true with very small children -- they don't remember particularly what happened last month and they can't really tell you much of anything ab...

LIAI completes world's most comprehensive analysis on influenza virus data

... Wilson said two significant points emerged. "One concern is that most of the current influenza research is based on strains maintained in the lab, rather than wild influenza strains. Since we know the virus mutates, research needs to be done using influenza strains currently circulating in the population,...

Farmed salmon could become an invasive species in forest streams

...ces for farmed salmon have plummeted and, there is concern that farmed fish may become the next invasive species. "Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter Bisson. "Net pen culture of salmon is ...

NT researchers discover breakthrough in malaria treatment

...tion in poor tropical communities." he added. A concern with such a policy is that the resistance will emerge quickly to the long acting drug. However the team believes that by combining the two drugs will help to prevent this from happening. ...

Bacterial walls come tumbling down

...nicillin and amoxicillin, and is a great cause for concern among hospital infectious disease staff. Postdoctoral fellow Andrew Lovering, who is first author on the paper, hopes the group's three-dimensional pictures of the sugar-building enzyme from S. aureus will accelerate the search for an effective weapo...

Soft-cell approach cuts animal tests

...iance on animal data in toxicology has long been a concern of the scientific community. Predicting the biological activities of toxic chemicals in humans by using animal data always poses uncertainty due to differences between animals and humans. In a series of published experiments, the UNSW team has de...

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