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Tag: "untreated" at biology news

Novel antiviral technology inhibits RSV infection in mice

... less airway inflammation and hyper-reactivitythan untreated mice....

Poplar trees redirect resources in response to simulated attack

... and delivered more of it to the roots than plants untreated with the hormone. "This is pretty convincing evide...el A shows the distribution of carbohydrate in the untreated plant (red is high; blue is low). Panel B shows that when that same plant is retested after exposure...

NYC's First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention

...y. Ordinarily, it has taken up to ten years for an untreated individual to progress from HIV infection to an AIDS defining illness and diagnosis. "It appears this individual has contracted a new, particularly virulent strain of HIV that swiftly advanced to AIDS in just a few short months," said Charles Farthi...

Antibiotic might fight HIV-induced neurological problems

...time -- 84 days after infection -- five of the six untreated monkeys had evidence of moderate or severe encephalitis and much more physical evidence of damage to brain cells, the researchers report. "The infection in the animal model is predictable and aggressive, so we can get meaningful data by studying few...

Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer

...omized clinical trial for patients with previously untreated recurrent or metastatic breast cancer ?cancer that has spread from the breast to other parts of the body ?show that those patients who received bevacizumab (Avastin? in combination with standard chemotherapy had a longer time period before their canc...

U. Iowa researchers improve Huntington's disease symptoms in mice

...e also was significantly improved in comparison to untreated mice. Detailed examination of the protein levels ...e reduced to about 40 percent of the level seen in untreated mice. "It is very exciting that a partial reduction is sufficient to produce a very beneficial effe...

Cancer drug slows poxvirus in mice

...vec-treated mice survived, while 70 percent of the untreated mice died. This finding, if confirmed in additional animal model studies, suggests that Gleevec might play a role in addressing a public health emergency in the event of a smallpox outbreak, Dr. Kalman says. Specifically, Gleevec might be useful as ...

Combination therapy leads to partial recovery from spinal cord injury in rats

...ther treatments did not improve significantly, and untreated rats did not have any electrical activity that passed through the damaged spinal cord. Studies of the damaged spinal cord tissue after the combined treatment showed that many of the transplanted cells survived and migrated within the cord and that ab...

Modified collagen could yield important medical applications

... cells to a lab dish, the cells migrated toward an untreated collagen film but avoided the modified collagen sample. This form of collagen could stop the formation of blood clots and scar tissue, and scientists may be able to use it to control the shape and organization of cells and tissue that are grown in a ...

Unusual antibiotics show promise against deadly 'superbugs'

... cells to a lab dish, the cells migrated toward an untreated collagen film but avoided the modified collagen sample. This form of collagen could stop the formation of blood clots and scar tissue, and scientists may be able to use it to control the shape and organization of cells and tissue that are grown in a ...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...nutes. "During the stress test, 40 percent of the untreated mdx mice progressed to cardiac failure," says DeWayne Townsend, D.V.M., Ph.D., a post-doctoral fellow and co-first author of the study. "Even those that didn't reach the threshold were doing poorly. The control mice, on the other hand, did just fine ...

Neurologix announces positive results of gene therapy clinical trial in Parkinson's disease

...on Disease Rating Scale (UPDRS). In contrast, the untreated side evidenced no significant improvement in the U...ificant decrease in abnormal metabolism, while the untreated side showed a further increase in abnormal metabolism. The imaging results were considered similar ...

Bleach found to neutralize mold allergens

...viability and the allergenicity of the treated and untreated mold. The researchers found that the use of the dilute bleach solution killed the A. fumigatus spores. When viewed using an electron microscope, the treated fungal spores appeared smaller, and lacked the surface structures present on healthy spore...

Aloe vera coating may prolong freshness, safety of fruits and vegetables

...ks under low temperature while exposing a group of untreated table grapes to the same conditions. The colorless...gel can also be applied as a spray, they add. The untreated grapes appeared to deteriorate rapidly within about 7 days, whereas the gel-coated grapes were well-...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

... were immediate. Worker ants promptly attacked the untreated saplings, injecting a poison called formic acid into the leaves, which began to die within 24 hours. "Most of the leaves on these saplings were lost within five days, and the proportion lost was significantly higher than on ant-excluded saplings," th...

Visceral Leishmaniasis: Successful Vaccine Trial In Dogs

...or cells. This process, which did not occur in the untreated dogs, thus enables macrophages to get rid of the parasites that are infecting them. The animal thus acquires long-term protection against visceral leishmaniasis. Although this vaccine’s effectiveness has been shown only on a limited number of animal...

Targeting a key enzyme with gene therapy reversed course of Alzheimer's disease in mouse models

...ques. "When you compare the brains of treated and untreated mice, the difference is striking. Silencing BACE1 reduced the number and size of plaques by two thirds within a month, which is incredibly fast," says Singer. Co-authors of this work also include Edward Rockenstein and Leslie Crews, both at UCSD. A...

No small feat: First ever gene therapy success for muscular dystrophy achieved

...ically more active and lived four times as long as untreated animals. "While we have much farther to go until we can say gene therapy will work in children, we have shown here a glimmer of hope by presenting the first evidence of a successful gene therapy approach that improved both the general health and lon...

Toxic flood lifts lid on common urban pollution problem

...ontaminants at levels "greater than those found in untreated municipal wastewater from the same service area," ...waters. Typically the result of contamination from untreated sewage, bacteria also can come from urban runoff, Sansalone said. Although it was not measured as pa...

High carbon dioxide levels spur Southern pines to grow more needles

...h as fossil fuel burning. Other stands are left as untreated controls for comparison. The elevated carbon dioxi... had on average about 17 percent more needles than untreated pines. Higher needle percentages in trees receiving the gas were recorded even during years when for...

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