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Tag: "virus" at biology news

UF scientist finds unexpected link between cat and human AIDS viruses

...ated with an experimental strain of the human AIDS virus appear to be at least as well-protected against th...e that you can make an effective vaccine against a virus in the AIDS family of viruses," said Yamamoto, a co-discoverer of FIV. Yamamoto holds the patent on...

Hepatitis C complicated by morphine withdrawal

...pressing IFN-alpha-mediated immunity and enhancing virus replication. The paper by Wang et al., Morphine withdrawal enhances hepatitis C virus (HCV) replicon expression, appears in the November issue of The American Journal of Pathology and is...

Volunteers sought for avian flu vaccine study

...vian flu could lead to a worldwide pandemic if the virus becomes easily transmittable,leading to a public h... from human to human, and we're concerned that the virus will evolve to spread easily among the human population and become a global pandemic,"said Edwards, ...

Research team receives $7.5 million to study cassava

...e to geminivirus, a particularly devastating plant virus that can destroy up to 60 percent of a cassava cro...reduce deterioration after harvesting and increase virus resistance. "Eventually, we'd like to bring all of these traits together into one variety of cassav...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...how many are infected and how strains of influenza virus jump from one species to another. Wild birds are ...the reasons we don't understand the ecology of the virus is that we don't know what happens to the virus in its natural ecosystem," Runstadler said. "We need...

New study shows measles immunization may prevent fatal brain infection

A new study has found wild-type measles virus in tissues from patients who died of a fatal brain...ing evidence against the notion that the strain of virus in the measles vaccine caused the infection. The study, in the November 15 issue of The Journal of ...

Preventing a pandemic: Study suggests strategies for containing a flu outbreak

...d," she said. The danger of avian flu is that the virus could develop into a new strain that could be transmitted among humans. The virus might mutate, or it might jump over to a human already infected with the flu and then mix, or "reass...

Gene therapy reverses genetic mutation responsible for heart failure in muscular dystrophy

...reaching the muscle cells. Fortunately, we found a virus that is just small and sneaky enough to get throug...University of Pittsburgh School of Medicine. The virus used by Dr. Xiao and his colleagues for delivering the corrective gene is known as adeno-associated ...

Agricultural workers at increased risk for infection with animal flu viruses

... as human flu viruses--thereby acting as a virtual virus "mixing bowl," especially on farms where pigs, chi...ses. "Pigs play a role in transmitting influenza virus to humans," says NIAID Director Anthony S. Fauci, M.D. "The worry is that if a pig were to become si...

Researcher uncovers details of how cancer spreads

...resembling those found in cancer cells. While this virus has not been found in humans, it does lead to tumo... have been linked to viruses, including the herpes virus and its association with cervical cancer. "Critics of this work will ask why v-Src has not been fou...

HIV inserts into human genome using a DNA-associated protein

... or less. "We surmise that this strategy helps the virus make hay while the sun is shining, as it were, pro...s of viral copies during a short time, so that the virus can maximize production of daughter virions," says Frederic Bushman, PhD, Professor of Microbiology ...

Living anti-HIV gel shows early promise

... to make them produce a protein that stops the HIV virus from infecting cells. They say that allowing these bacteria to colonise the internal body surfaces where HIV transmission can occur through sexual activity, could offer cost-effective, efficient and long-lasting protection against the virus. The te...

Past illegal blood donation in China linked to hepatitis C virus infection

...l blood donation practices led to high hepatitis C virus (HCV) infection rates in blood and plasma donors during the 1980s and early 1990s, and that failure to screen for HCV in transfusion recipients increased their risk of infection as well, according to an article in the November 15 issue of The Journal...

Restoring silenced suppressor gene kills lung-cancer cells

... missing WWOX protein. The researchers then used a virus engineered to carry working copies of the WWOX gene into the three cell lines. After five days, the researchers found that cells having an active WWOX gene died off. The cells self-destructed through a natural process known as programmed cell death...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

Transmission of HIV, the virus that causes AIDS, from pregnant women to their inf... womb. "The question has always been how does the virus get from the mothers to the babies?" said principal investigator Dr. Steven Meshnick, professor of e...

Computer models aid understanding of antibody-dependent enhancement in spread of dengue fever

...ntibody-dependent enhancement may allow the dengue virus to grow more rapidly in people who were previously...ial but incomplete immunity to the virus. Enhanced virus replication triggers a more deadly, hemorrhagic form of the disease. A study published in the onli...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...ond advantage is that her method doesn't rely on a virus to disperse the DNA and therefore avoids some of the issues, including cancer and an immune reaction, that have turned up in viral gene therapy trials. Instead this approach uses naked DNA that travels through the bloodstream to cells of the body. F...

Polymer gel can block toxic leakage problem in gene therapy

.... "With this method we can reduce the misdirected virus dissemination by a factor of 100 to 1,000 times," ...team found the polymer-virus mixture "could reduce virus dissemination by two orders of magnitude (100 times) and significantly increase transgene expression...

Science's Breakthrough of the Year: Watching evolution in action

.... This year's sequencing of the 1918 pandemic flu virus could have a more immediate impact on medicine. The amazing story of flu genes preserved in permafrost and painstakingly reconstructed has a chilling coda: the deadly flu seems to have started out as purely a bird virus. Understanding the evolution o...

New possibilities for flu antiviral and vaccine research emerge from 'Spanish flu' virus

...have now discovered at least part of what made the virus so lethal, thus providing essential information fo...S, the nonprofit science society. The Spanish flu virus is more closely related to avian flu viruses than other human flu viruses. Many experts say that it ...

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