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Tag: "spreading" at biology news

Earth Rx: A microbial biotechnology prescription for global environmental health

...of Earth's 6 billion year history, microbes ruled, spreading to every nook and cranny on the globe, from geothermal vents on the ocean's floor to arctic permafrost. Now, uncovering and categorizing this abundant biodiversity is one of the chief goals of scientists in the field of microbial ecology ?and may be ...

Flesh-eating bacteria escape body's safety net

...on, the mutant Strep bacteria no longer produced a spreading infection when injected into the skin of experimen...rade DNA, escape neutrophil killing, and produce a spreading ulcer in the mouse infection model. Special fluorescent microscopy techniques were used to observe ...

Pitt professor's theory of evolution gets boost from cell research

...d those altered genes remain in a recessive state, spreading silently through the population until offspring appear with two copies of the new mutation and change suddenly, seemingly appearing out of thin air. Those changes may be significant and beneficial (like teeth or limbs) or, more likely, kill the organ...

Ocean 'dead zones' trigger sex changes in fish, posing extinction threat

...g the coasts of the major continents, and they are spreading over larger areas of the sea floor, Wu says. The United Nations Environmental Programme estimates nearly 150 permanent and recurring dead zones exist worldwide, including 43 in U.S. coastal waters. In the Gulf of Mexico, for instance, a dead zone t...

Duke to test bird flu vaccine dosing

...e is no risk of volunteers contracting bird flu or spreading it to others," Walter said. The vaccine is designed to protect against the H5N1 strain of bird flu that has infected poultry in Asia, Europe and Africa and killed 101 humans. Initial trials in healthy adults showed the vaccine was safe and produced...

New U. of Colorado at Boulder flu chip may help combat future epidemics, pandemics

...that might occur in avian flu H5N1, which has been spreading rapidly from bird to bird in Asia, Russia and parts of Europe, said Kuchta. While the avian virus does not now spread effectively from person to person, world health officials are fearful the strain will mutate and become transmittable between human...

New GM mosquito sexing technique is step towards malaria control, report scientists

...available. "Female mosquitoes are responsible for spreading malaria, and also for damage to crops, but they are only able to breed once before dying. By forcing females to breed with sterile males, we can stop them creating additional mosquitoes and at the same time, reduce the population." The team used...

Same-sex mating by fungi spawned infection outbreak, evidence suggests

.... That strain has now taken hold and appears to be spreading -- perhaps driven by unique conditions in the Vancouver area, they said. "While the number of people infected so far does not approach that of many other infectious diseases, this fungus is invading the central nervous systems of people who have no ...

New genetic test can detect clam disease

...oms are not carrying the disease. With the disease spreading along the East Coast and no cure, the researchers say the best solution for shellfishermen and aquaculture operations is to keep infection levels as low as possible and try to keep seed clams free of the disease. One possible remedy may be rotating ...

Researchers discover why melanoma is so malignant

...oma can be a particularly virulent form of cancer, spreading through the body with an efficiency that few tumor...y developed invasive tumors throughout their body, spreading everywhere from the lungs to the spleen. This strongly supported the suspicion that melanoma is so m...

Researcher uncovers details of how cancer spreads

... and its spread within the body," Guan added. "The spreading part is less well understood, and it's the spreading that is killing people." ...

Emerald Spectre haunts Ontario's ash forests

...f southeast Asia, the insect is capable of rapidly spreading with a little human help. Adult beetles lay eggs under tree bark and the feeding larvae kill trees by disrupting the flow of nutrients in the soft tissues under the bark. The new study funded by the Natural Sciences and Engineering Research Council ...

Drug resistant avian influenza viruses more common in Southeast Asia than North America

...de Resistance to the antiviral drug amantadine is spreading more rapidly among avian influenza viruses of H5N1...rld health officials because H5N1 subtype has been spreading throughout chicken flocks and wild birds in Southeast Asia since it emerged in 1997. Between late 20...

UNC scientists discover new role for protein as fundamental inhibitor of cell movement

...one of the hallmarks of highly aggressive, rapidly spreading cancer tumors. The study appears in the August issue of The Journal of Cell Biology. The study indicates that CIB1 inhibits cell migration by binding to and activating a protein called PAK1, or p21-activated kinase, in cancer cells. When CIB1 activ...

Shampoo detergent added to paint makes surfaces self-sterilizing

...s are at the center of the epidemiological web for spreading common upper respiratory diseases that cost the U.S. hundreds of billions of dollars annually in lost productivity. While it has long been known that our coinage possesses the quality of being self-sterilizing, little previous thought has been given ...

UF researchers kill resistant bugs one bandage at a time

... keep dangerous antibiotic-resistant bacteria from spreading in hospitals, a problem that leads to thousands of deaths in the United States each year. This microbicidal coating - which can be chemically bonded to gauze bandages, socks and even hospital bedding and gowns - kills the two most common and harmful...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

...st affected by HIV to those in whom the disease is spreading fastest. According to Quinn women now make up nearly half of the 40 million people worldwide currently infected with HIV, the virus that causes AIDS, and in some developing countries, women represent the vast majority of those living with HIV/AIDS. ...

Agilent Technologies Introduces First Commercial Mouse Microarray for Comparative Genomic Hybridization Research

...eijing/W family, a straing of tuberculosis that is spreading all over the world, is drug-resistant, and is responsible for the most threatening disease outbreaks. ...

Researchers Discover Ancient Origins Of Tuberculosis-causing Bacteria

...eijing/W family, a straing of tuberculosis that is spreading all over the world, is drug-resistant, and is responsible for the most threatening disease outbreaks. ...

Boosting The BCG Vaccine To Beat Tuberculosis

...eijing/W family, a straing of tuberculosis that is spreading all over the world, is drug-resistant, and is responsible for the most threatening disease outbreaks. ...

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