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Tag: "spreading" at biology news

MRSA toxin acquitted: Study clears suspected key to severe bacterial illness

... primary defense against bacterial infections--and spreading disease. The findings, which appear online in The Journal of Infectious Diseases, are surprising because many scientists had presumed that CA-MRSA uses PVL to target and kill specific white blood cells known as neutrophils. "The Staphylococcus aur...

To slow AIDS in Russia, treat HIV-positive addicts, Stanford study says

...s of all HIV cases in Russia, and the epidemic is spreading rapidly to non-drug users. According to the United Nations, Russia's HIV infection rate is among the fastest-growing in the world. By 2020, HIV could afflict 14.5 million Russians, according to a study from the Woodrow Wilson Center in Washington...

Malaria may fuel spread of HIV in sub-Saharan Africa

...in M.D., M.P.H. "While HIV/AIDS is predominantly spreading through sexual intercourse, this biological co-factor induced by malaria has contributed considerably to the spread of HIV by increasing HIV transmission probability per sexual act," said Abu-Raddad, an HIV/AIDS research scientist in the Hutchinson C...

Ebola-outbreak kills 5000 gorillas

...t studies showing that the Ebola infection wave is spreading rapidly towards several of the remaining large protected areas in the region. Results from the new study suggest that protecting these remaining ape populations from Ebola may be much more feasible than previously appreciated. At Lossi, most gorillas...

Mayo researchers discover HIV dependence on a human protein

...ith many millions of copies, like a computer virus spreading around the world from a single infected computer. ...

Two studies on bee evolution reveal surprises

...itive. Bees are known to affect plant evolution by spreading pollen and preferring to pollinate some types of plants over others. Because scientists assume that bees have essentially always been around, pollinating plants and "creating" new species, it has been a mystery why the bee fossil record only dated ba...

Squid-inspired design could mean better handling of underwater vehicles

...ots out of an opening, moving in one direction and spreading out as it curls back. The researcher's nature-inspired vortex generators could be used in a wide array of applications. One of them, a seeming take-off of technology featured in the sci-fi cult classics "Fantastic Voyage" and "Innerspace," emplo...

Proteins anchor memories in our brain

...expression is ramped up and the immune response is spreading to other self-antigens," Anderson said. "If we can also train our focus on the thymus, where we know at least some of the autoimmune disease is triggered, we may be able to determine just what self-antigens are important and shut down the autoimmune ...

Autoimmune disease triggered if T cells miss a single protein early on

...expression is ramped up and the immune response is spreading to other self-antigens," Anderson said. "If we can also train our focus on the thymus, where we know at least some of the autoimmune disease is triggered, we may be able to determine just what self-antigens are important and shut down the autoimmune ...

Human testis harbors HIV-1 in resident immune cells

...infected with HIV. Semen remains the main means of spreading the virus, even though highly active antiretroviral therapy (HAART) can successfully suppress virus in the blood. The presence of HIV in the semen despite successful HAART has intrigued scientists. Researchers led by Dr. Nathalie Dejucq-Rainsford...

Recycled paper and compost could both be key tools to control plant disease

...es the plants growing in it susceptible to quickly spreading plant diseases. In contrast compost contains a diversity of microbes that can suppress plant diseases. The ecological benefits of this are obvious: less fungicide has to be applied to plants, less peat is required thus preserving peat bogs, and gree...

Immune cell communication key to hunting viruses, Jefferson immunologists show

... different types of presenting proteins cooperate, spreading a signal among only a few T-cell receptors and boosting the T-cell response. This helps explain how only a few virus-infected cells can cause a killer T-cell response. They report their findings this week in an online edition of the Proceedings of th...

Fire ant-attacking fly spreading rapidly in Texas

...professor of integrative biology, but they are now spreading three-to-10 miles per year from initial introducti...opted the initiative and plans to help promote the spreading of phorids by private ranching and wildlife groups. ...

MRSA vaccine shows promise in mouse study

...ause of hospital-acquired infections and a rapidly spreading source of community-associated illness. The vaccine protected mice against potentially lethal infections with five virulent S. aureus strains, the researchers report in the Nov. 7, 2006, issue of the Proceedings of the National Academy of Sciences,...

Prion find points way to test for human 'mad cow' disease

...JD is, and keep contaminated blood and organs from spreading it further." Creating such a test is a high priority for Soto, who is also director of UTMB's George and Cynthia Mitchell Center for Alzheimer's Disease. "We're now working with natural samples, both from humans and cattle but mostly from humans," h...

New bird flu drug promises to beat the problem of resistance

... action of the enzyme. This stops the virus from spreading to new cells and helps to reduce the severity and duration of flu so that the body's own defence mechanisms, together with other medical interventions, can help aid recovery. However, the influenza virus can develop resistance to the drugs by mutat...

Research links protein to breast-cancer migration

...ial to offer alternative therapies to stop cancers spreading to other organs in the body." News of the scientific breakthrough comes as the University announced Breast Cancer Campaign funding for two other research projects worth nearly £300,000. Dr. Andrew Gilmore, also in the Faculty of Life Sciences, has ...

UGA study explains peaks and troughs of dengue epidemics

... is allowing the species primarily responsible for spreading dengue (Aedes aegypti, also known as the yellow fever mosquito) to expand its range. Population growth in developing nations is pushing more people into substandard housing in mosquito-infested areas. And the ease of travel brings the virus to areas ...

Single cell amoeba increases MRSA numbers 1000- fold

...persed by air currents, providing another means of spreading any trapped bacteria. "We need more research into the role of amoeba in the spread of MRSA ?hospitals should aim to eradicate amoebae as well as the bacteria themselves" said Prof Brown of the Department of Pharmacy and Pharmacology, University of B...

Exotic crab poised for widespread UK invasion

An exotic type of crab is spreading at an alarming rate throughout Britain's coast and rivers, a new study suggests. The Chinese mitten crab, brought to Britain during the last century in ships' ballast water, could cause devastating environmental problems if populations are not moni...

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