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Tag: "harm" at biology news

Results of world's first gene therapy trial for arthritis show approach safe, feasible

...nce that it can be performed without causing undue harm to patients. The clinical trial, which was conducted at the University of Pittsburgh School of Medicine between 1996 and 1999, involved nine women who had genetically modified cells injected into their arthritic knuckles and marked the first time a ...

New study shows SARS can infect brain tissue

...here their inflammatory effects may have done more harm than good. There are a few possibilities for curbing Mig's possible role in causing brain damage in SARS patients with central nervous system infection, according to lead author Jun Xu, PhD, of the Guangzhou Institute of Respiratory Diseases and se...

'Cookbook recipes' would cure disease with nontoxic DNA delivery systems

...ing negatively charged (anionic) lipids that won't harm cells. "The problem then becomes: 'How do you stick a negatively charged lipid to a negatively charged DNA molecule?'" said Wong, who also is a researcher at the Beckman Institute for Advanced Science and Technology. "One idea is to glue the lipids ...

Aquatic plants may hold key to advancing plant disease management

... to control highly invasive freshwater plants that harm native aquatic plants. Studies of marine plant diseases continue to provide insight as to how climatic change influences disease development. "Emerging marine diseases, such as coral diseases, are creating a major shift in the marine flora," Schmale ...

Researcher at UGA College of Veterinary Medicine identifies new way of combating viral diseases

...ily blocking the Rab9 pathway would be unlikely to harm the body, Hodge added, because human cells tend to have backup systems that can compensate. ...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...h components found in tissue, and so also does not harm the body. But when nanoshells are injected into an experimental animal with cancer, they accumulate in the tumor; the addition of NIR laser light heats up their gold shell, causing the particles to destroy tumor cells. Furthermore, because of thei...

The dangerous legacy of lead

...covered a new aspect of how it may work in mice to harm the function of T-cells, which regulate the body's immune response to bacteria, viruses and other bugs. The discovery adds insight to the latest trend in lead research, as scientists shift their emphasis from the immediate public health threat to un...

Microarray technology for tailoring breast cancer therapy

...given therapies with the potential of causing more harm than good. A team of researchers led by Jonas Bergh from the Karolinska Institutet in Stockholm, Sweden, analysed the gene expression profiles of 159 breast cancer patients using DNA microarray analysis. From these samples they identified the geneti...

Common alternative treatment for liver disease is found to be ineffective

...searchers aimed to determine the exact benefits or harm in using milk thistle to treat affected patients. Over 900 patients with the aforementioned types of liver disease were studied in these trials over a period of six months, in groups treated with milk thistle versus placebo treatment. No significan...

Biologists discover new pathway into plant cells

..., applied research could be done either to help or harm plant cells ?by increasing or controlling their growth, or introducing new characteristics. ...

Learning to love bacteria: Stanford scientist highlights bugs' benefits

...e disease are usually considered in the context of harm and epidemics and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take the organisms with them to their ...

Scientists look to the Bahamas as a model for coral reef conservation

...e disease are usually considered in the context of harm and epidemics and so on," said Falkow. "But the fact is that a great number of organisms that infect humans come in and set up housekeeping as it were. There are no clinical symptoms of anything wrong and people take the organisms with them to their ...

'Bad' enzymes may wear white hats after stroke

Enzymes that can harm the brain immediately after a stroke may actually ...id might increase levels of MMP-9 where MMPs would harm rather than help, and statins might help counteract that. So statins could play a role in treating A...

Marine mammals are on the frontline of failing ocean health

... "Often we don't know if the new substitutes will harm the ecosystem." "It's a struggle to find replacements," says O'Hara. "But wouldn't it be better to know ahead of time if certain policies or practices might be disastrous? We could talk more about prevention rather than trying to fix the damage." ...

Invasive species harms native hardwoods by killing soil fungus

...ng evidence for a unique process by which invaders harm native species, was conducted by researchers at Harvard University, the University of Guelph, the University of Montana, Purdue University, and the UFZ Centre for Environmental Research in Germany. "While vanishing habitat caused by human activity i...

UCI researchers discover key factor for survival of human embryonic stem cells

...d into the body often form tumors instead, causing harm to the patient. A significant challenge has been to prevent the formation of tumors by ensuring that all cells are differentiated before they are transplanted. The studies by Donovan and Lock show that this is even more crucial when that transplanta...

Spousal illness can trigger partner death

...aged 65 and older, hospitalization of a spouse can harm the wellbeing of his or her partner and significantly contribute to that partner's death. This risk also varies with the ill spouse's diagnosis. The study appears in the Feb. 16 New England Journal of Medicine. "Our study shows that people are connec...

Expedition discovers marine treasures

...ish pots that become so-called ''ghost traps" that harm fish stocks. Leroy Peterson, a Saba fisherman, called the expedition crucial for protecting Saba Bank's unique marine life. "Some of the scientists actually found new species not located anywhere else," Peterson said. "There should be no-anchor zon...

Invasive exotic plants helped by natural enemies

...United States, not to mention the untold amount of harm they do to the structure and function of native ecosystems. In this latest study, researchers found that exotic herbivores, including cattle, rabbits and goats introduced by Old World explorers, can encourage the spread of invasive exotic plants ?inc...

Efficiency, not more doctors, is the prescription for aging population

...e less subject to interventions that could do more harm than good. The argument for expanding the physician workforce is based on a faulty assumption, according to the authors. Proponents reason that the practices of the highest-intensity medical centers where many more doctors and resources are used ...

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