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Tag: "virus" at biology news

Engineers improve plastic's potential for use in implants by linking it to biological material

...splayed on the outer surface of a harmless type of virus called a bacteriophage that was purchased commerci...ing else on the outer surface of the bacteriophage virus wasn't responsible for its perceived stickiness, the researchers demonstrated that T59 by itself cou...

Ebola virus: from wildlife to dogs

Since 1976 the Ebola virus has caused some lethal human epidemics in Central ... virus's propagation paths. The discovery of Ebola virus antibodies in several species of non-human primate suggests the existence within this fauna of diffe...

Virologists make major step towards understanding the process of HIV infection

... permits scientists to observe the behavior of the virus when it enters a host cell, during replication and...st cell, there had also been attempts to label the virus with GFP. However, the genetic modifications impaired the formation of virus particles or their infe...

New Species of Coral Discovered Off Southern California

... permits scientists to observe the behavior of the virus when it enters a host cell, during replication and...st cell, there had also been attempts to label the virus with GFP. However, the genetic modifications impaired the formation of virus particles or their infe...

Researchers pioneer new gene therapy technique using natural repair process

...t some subsequently developed leukemia because the virus inadvertently turned on a cancer gene. Dr. Porteus' strategy differs fundamentally from previous gene therapies because it essentially replicates the natural process, which is more accurate. This accuracy means that, in practice, the gene therapy on...

Research Reveals Functions Of Harmful Shellfish Pathogens

...es methods to detect norovirus and the hepatitis A virus in shellfish. It also develops high-pressure processing techniques to inactivate enteric viruses in contaminated shellfish. This research may provide better diagnostic capabilities and treatment strategies to further reduce shellfish-related illness...

High fidelity keeps human DNA assembly line humming

...ions for how a normal cell forms a tumor and how a virus runs amok. The work is published in the May 13 edition of the scientific journal Molecular Cell. Behind the basic research is a story that melds exquisite nanotechnology in living systems and cutting-edge biochemistry and molecular biology with a s...

Survey reveals women and doctors aren't talking about HPV

...anced screening is available, which can detect the virus early and help prevent cervical cancer. "The comm...ransmitted sexually. In the majority of women, the virus is eliminated naturally by the body's immune system. But in some cases, the infection persists - som...

U of T researchers map role of Epstein-Barr virus in cancer

...show how a viral protein coded in the Epstein-Barr virus immortalizes cells and causes them to continuously... people to certain types of cancer. "Epstein-Barr virus (EBV) is one of the most common human viruses in the world and is strongly linked to certain b-cell ...

Cancer drug slows poxvirus in mice

...llpox vaccine is made from live, weakened vaccinia virus and is not recommended for people with compromised...oretically could hamper the cell-to-cell spread of virus and allow the body's immune system to mount a successful defense, he explains. Experiments to test w...

FDA Approves New Treatment for Chronic Hepatitis B

...s B is a serious disease caused by the hepatitis B virus (HBV) that attacks the liver. The virus can cause lifelong infection, cirrhosis (scarring) of the liver, liver cancer, liver failure, and de...

Discovery could be key to bioterrorism defense

... analyzing a human cell line that was resistant to virus infection against two susceptible cell lines. The ...re put into cells that were then exposed to a live virus at AAHL." Hendra virus was first isolated in 1994 when an outbreak of respiratory and neurologic di...

Random gene expression may drive HIV into hiding

...ates of cells infected with human immunodeficiency virus (HIV) far more than previously thought, according ...ion cycle, the researchers found evidence that the virus may become latent in some cells by harnessing the random molecular behavior of the cell. HIV can hi...

Enzyme's newly discovered role may make it target for arthritis treatment

...ases. One principal type of treatment for HIV, the virus that causes AIDS, inhibits proteases, so scientists who try to block cathepsin G's role in inflammation will already have an extensive body of research results to refer to. Pham's lab uses mouse models of arthritis to study the contributions of prot...

Study finds adult stem cells can replicate

...ases. One principal type of treatment for HIV, the virus that causes AIDS, inhibits proteases, so scientists who try to block cathepsin G's role in inflammation will already have an extensive body of research results to refer to. Pham's lab uses mouse models of arthritis to study the contributions of prot...

Newest HIV drugs should be used with FUZEON(R)

...side the human immune cell (CD4), blocking the HIV virus from entering. All other currently available HIV drugs fight the HIV virus once it has entered the cell. FUZEON's unique mode of action means that FUZEON has no cross-resistan...

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

...ich produce myelin. The scientists used a modified virus to insert genes for marker proteins that make the cells visible. Some cells also received a gene called D15A. This gene produces a protein with activity similar to growth factors called neurotrophin 3 (NT3) and brain-derived neurotrophic factor (BDNF...

Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees

...sts from logging, and slow the spread of the Ebola virus in the region. Called the Regional Action Plan fo...es as well." The continuing spread of the Ebola virus through the region is a particular threat, with devastating effects on ape populations. Ebola spread...

When it comes to cell entry, being average has its advantages

...or-mediated endocytosis. Here's how it happens: A virus or other particle arrives at the cell membrane. Protein receptors on the membrane act like hooks, grabbing onto hooks, or ligands, on the particle, much like two pieces of Velcro. As more and more chemical hooks are recruited for the task, the membra...

Brown-Harvard team solves mobile DNA's surgical sleight-of-hand

...e findings are important because lambda is a model virus used to understand mobile DNA, according to Arthur...is work represents a major leap." When the lambda virus inserts its DNA into E. coli, λ-INT is the major player in the process, literally snipping the E. co...

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