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Tag: "virus" at biology news

Viral DNA sequence a possible trigger for breast cancer

...the envelope (Env) protein of a mouse breast tumor virus (called MMTV) can transform breast cells into canc... other cancer-causing viruses such as Epstein Barr virus and Kaposi's sarcoma virus, but what role this sequence plays in cancer development has remained une...

Association of herpesvirus with lung disorder questioned

...rnal of Medicine that reported the presence of the virus in similar samples of lung tissue from a similar number of patients. Both primary pulmonary hypertension and infection with HHV-8 are uncommon, Katano and co-authors explained. Human herpesvirus 8 infection is associated with Kaposi's sarcoma, a t...

Columbia research lifts major hurdle to gene therapy for cancer

...corporating it into a specially designedvirus. The virus eradicated prostate cancer cells in the lab and in...ma), skin(melanoma) and colon cancer - because the virus is constructed toexploit a characteristic of all solid cancers."What's exciting is we may now be abl...

Topical treatment shown to inhibit HIV and herpes simplex virus infection

...es protection from both the human immunodeficiency virus (HIV) and the herpes simplex Virus. The study, presented at the 12th Conference on Retroviruses and Opportunistic Infections, is the first to show that a gel can retain anti-viral activity within the human vagina. The study, which was funded by the ...

New binding target for oncogenic viral protein

The DNA tumor virus simian virus 40 produces the Large T antigen which inactivates two of the cell's most important cancer-preventing...

Elusive HIV shape change revealed; Key clue to how virus infects cells

...shown how a key part of the human immunodeficiency virus (HIV) changes shape, triggering other changes that allow the AIDS virus to enter and infect cells. Their findings, published in the Feb. 24 issue of the journal Nature, off...

Scientists Replicate Hepatitis C Virus in Laboratory

...first time, scientists have replicated hepatitis C virus (HCV) in the laboratory. The ability to replicate ...to better study the life cycle and biology of this virus and to test potential antiviral compounds, which may lead to new therapies for the liver disease tha...

Research advances quest for HIV-1 vaccine

...t may help guide design of vaccines for HIV-1, the virus that causes AIDS. A new detailed structural analys... conserved region very close to the surface of the virus and they reveal some special characteristics of 4E10 that make it unusually effective at targeting t...

Novel antiviral technology inhibits RSV infection in mice

...chnologies thwarts attacks ofrespiratory syncytial virus (RSV) -- a virus associated with severebronchitis and asthma, an animal study by University of South Floridaresearche...

Male circumcision reduces risk of HIV transmission from women to men

...this new information may help usunderstand why the virus is spreading rapidly in parts of Africa, andhelp define better HIV strategies for prevention in these settings....

Computers to be used to find blueprint for new influenza drug

...ating around the cells in our throats that the flu virus first attacks when a person becomes infected. The flu virus would be deceived into attacking the drug, called an inhibitor, instead of the cells. The three-yea...

Newly discovered virus linked to childhood lung disorders and Kawasaki disease

...ok care of her. First headline :a newly discovered virus causing respiratory infection. Let's hope itsjust a coincidence :) A newly discovered virus may be responsible for many respiratory tractillnesses in infants and children, and may be associate...

Study Links Ebola Outbreaks To Animal Carcasses

All recent Ebola virus outbreaks in humans in forests between Gabon and the Republic of Congo were the result of handling infected wild animal carcasses, according to a study by the Wildlife Conservation Society (WCS) and its regional partners. Appearing in the February ed...

Novel Enzyme Shows Potential As An Anti-HIV Target

...DNA and infiltrate human chromosomal DNA. Once the virus is integrated (now called a provirus), its genes c... in exploiting its host’s molecular resources, the virus can’t establish a foothold without the services of its skeleton crew. The HIV transcription factor T...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

... Virology, show that proteins in neurons fight the virus at multiple stages--by preventing the formation of...y of Southern California. Recently, the West Nile virus has been responsible for a viral encephalitis outbreak in the northeast. The NYU researchers set out...

Live Recombinant Adenovirus Vaccine Technique Explored

...ine with the versatility of recombinant adenovirus virus vaccines that are being developed.?/p> Specifi...nant adenovirus could be made to express L1 as the virus replicated in the body and thereby create a lasting immune response. The researchers inserted the L1...

Marburg virus disease in Angola - update

...from Angola were investigated for possible Marburg virus infection and laboratory results were negative in tests performed by the Bernard-Nocht Institute for Tropical Medicine, Hamburg, Germany, a WHO Reference Laboratory. ...

Gene therapy converts dead bone graft to new, living tissue

... around the dead bone. He then modified a harmless virus to carry these genes, devised a method of freeze-drying a paste containing the virus so it could be easily handled, and painted it directly onto a bone graft during surgery. Numerous t...

Researchers reveal the infectious impact of salmon farms on wild salmon

...versity of Alberta known for his work on West Nile virus and invasive species. "We have worked out the spatial footprint ?the data are strong and show that the farms are having a significant impact over a very large area." The researchers isolated the effect of the salmon farm by studying the infection le...

Jefferson Virologists Coax HIV Out of Hiding

...rid thebody of the virus. But they were wrong. The virus instead goes intohiding, dormant and practically u...ervious to attack. While HAART manages to keep the virus at bay,it’s still quite capable ?given the right opportunity ?of replicatingand wreaking havoc on th...

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