Tag: "virus" at biology news

Tips from the Journals of the American Society for Microbiology

...ting on humans in the 1960's, may inhibit the SARS virus say researchers from Europe and China. Their find...as evaluated in tissue samples containing the SARS virus and revealed a strong inhibition of coronavirus replication at nontoxic drug concentrations. "These ...

Study: Harmless virus kills some cancers

... is all it takes for a common, non-disease-causing virus to kill cervical, breast, prostate and squamous ce...rchers. "Our results suggest that adeno-associated virus type 2 (AAV2), which infects the majority of the population but has no known ill effects, kills mult...

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...his 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 ...

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

...tor-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...

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...

Experimental vaccine protects nonhuman primates from Lassa fever

...avelers to the United States and Europe. The Lassa virus that causes the disease is considered a potential ...ann of the PHAC. "While the mortality rate of this virus is not as high as with some viral hemorrhagic fevers, there are many more cases of Lassa fever and a...

UQ leads $10m study to fight dengue

The spread of the life-threatening dengue fever virus could be stopped in its tracks if University of Qu...rol strategy has the potential to eliminate dengue virus transmission from large regional areas," he said. "At the moment, there is no vaccine available and...

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 cassava...

Stolen gene allows insect virus to enter cells

ITHACA, N.Y. -- A gene enabling an insect virus to enter new cells was likely stolen from a host c... gene, had originally moved from an insect to a virus or the other way around. (Retroviruses, such as HIV, insert their own genes into their hosts' DNA in...

New study finds how cells with damaged DNA alert the immune system

...d and destroy cells infected by viruses before the virus can spread. "We don't have direct information about the role of the DNA damage pathway in regulating immune responses to infectious diseases, but given what we have shown here, it is certainly plausible that it contributes to the expression of the NK...

Other highlights in the July 6 JNCI

...fected donor, according to a new study. HHV-8 is a virus associated with Kaposi sarcoma, body cavity lymphomas, and Castleman disease. Kaposi sarcoma occurs in about 0.2% to 0.5% of patients after solid organ transplantation but is rare among bone marrow transplant recipients. Whether HHV-8 can be transmi...

UCLA scientists reveal how Nipah virus infects cells

...LA scientists have discovered how the deadly Nipah virus infiltrates human cells to cause encephalitis. De...nt by the National Biodefense Research Agenda, the virus exploits a protein essential to embryonic development to enter cells and launch its attack. The onl...

The cost of dengue fever challenges public health and national economies

...he fear that a parent or child could die from this virus all these facts are reasons why dengue is a salient candidate for vaccine development," Shepard said. Currently, each person hospitalized with dengue fever or dengue hemorrhagic fever in Malaysia costs about $718 to treat. About 70 percent of the ...

42 biomedical scientists worldwide named HHMI international research scholars

... Jean Dubuisson will study the hepatitis C virus (HCV), a major cause of chronic liver disease worl...rnik will study the molecular mechanisms of dengue virus replication. It is estimated that more than 50 million human dengue virus infections occur annually ...

How HIV disables the cells' call for help

The HIV virus hides out in the very immune system cells that are...ising the alarm. The scientists surmised that the virus must be able to actively disable some part of the immune cell's system. They investigated a peptid...

Stephen P Goff awarded inaugural Retrovirology Prize

...eveloped and exploited the Moloney murine leukemia virus as a genetic system. One of his most important results was the definition of the functional domains of the viral pol gene, and the seminal discovery of a viral function, now termed integrase, used to insert viral DNA into the host genome. Goff was a...

JCI table of contents August 1, 2005

... works with other domains to mediate fusion of the virus with the cell membrane, while also downregulating the T cell responses that normally would block infection. The authors show that the HIV FP can co-localize with CD4 and T cell receptor in T cells, and inhibits antigen-specific T cell proliferation. ...

HIV domains take on new functions in mediating immunity

... works with other domains to mediate fusion of the virus with the cell membrane, while also downregulating the T cell responses that normally would block infection. The authors show that the HIV FP can co-localize with CD4 and T cell receptor in T cells, and inhibits antigen-specific T cell proliferation. ...

Biologists see combined structure of cold virus and receptor molecule

...determined the combined structure of a common-cold virus attached to a molecule that enables the virus to infect its host, information that ultimately may help researchers develop methods for treating ce...

Primate virus jumps species barrier to humans for first time in Asia

...a of primate-to-human transmission of simian foamy virus (SFV), a retrovirus found in macaques and other pr...o cause disease in humans. The transmission of the virus from a monkey to a human took place at a monkey temple in Bali, Indonesia, the researchers report in...

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Breaking Biology News(10 mins):S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2Sandata Announces Case Study with Quality Care Services, Inc. 2New book about life as seen from physics 2
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