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Latest Retrovirus Stories

2010-11-19 12:27:59

Understanding the evolution of life-threatening viruses like influenza, Ebola and dengue fever, could help us to minimize their impact. New research points the way to a fossil record of viruses that have insinuated themselves into the genomes of insects and other animals, providing clues about their evolutionary history. The findings, published online on November 18 in the open-access journal PLoS Genetics, could enable scientists to elucidate general principles in virus evolution from their...

2010-09-29 13:32:06

Biologists from The University of Texas at Arlington have uncovered virus fragments from the same family of the modern Hepatitis B virus locked inside the genomes of songbirds such as the modern-day zebra finch. The article, publishing next week in the online, open access journal PLoS Biology, marks the first time that endogenous hepadnaviruses have been found in any organism. An endogenous virus is one that deposits itself or fragments of itself into the chromosome of an organism, allowing...

2010-09-02 08:32:00

TUCSON, Ariz., Sept. 2 /PRNewswire-USNewswire/ -- Why is it so hard to isolate and purify human immunodeficiency virus (HIV)? Why has no one been able to see, by electron microscopy, a single HIV particle in the blood of AIDS patients, even those who have a "high viral load"? Why does HIV seem to mutate with startling rapidity? AIDS researchers have not been able to come up with answers to these questions. HERVs--human endogenous retroviruses--might provide explanations that have been...

2010-07-30 13:44:51

Ancient viral sequences may protect against infection Over millions of years, retroviruses, which insert their genetic material into the host genome as part of their replication, have left behind bits of their genetic material in vertebrate genomes. In a recent study, published July 29 in the open-access journal PLoS Pathogens, a team of researchers have now found that human and other vertebrate genomes also contain many ancient sequences from Ebola/Marburgviruses and Bornaviruses "“...

2010-06-24 16:20:41

Some viruses insert themselves into the host's DNA during infection in a process called retroviral integration, causing several diseases, including AIDS and cancer, notes a Texas A&M researcher who specializes in fetal diseases. However, stem cells that give rise to the early embryo and yolk sac fight back, inhibiting further infection by aggressively silencing the invading viral DNA, says Michael Golding of the Department of Veterinary Physiology and Pharmacology. The work of the...

2010-06-04 06:00:00

PLEASANTON, Calif., June 4 /PRNewswire-FirstCall/ -- Roche Molecular Diagnostics (SIX: RO, ROG: OTCQX: RHHBY) announced today that the Food and Drug Administration (FDA) approved its new dual-PCR target HIV-1 viral load test to quantify the amount of virus in a patient's blood. The COBAS® AmpliPrep/COBAS® TaqMan® HIV-1 Test, v2.0 is the first quantitative viral load test to amplify and detect two separate regions of a target genome and...

2010-06-02 13:37:06

Using high-throughput sequencing to map the locations of a common type of jumping gene within a person's entire genome, researchers at the University of Pennsylvania School of Medicine found extensive variation in these locations among the individuals they studied, further underscoring the role of these errant genes in maintaining genetic diversity. The investigators determined that any two peoples' genomes differ at roughly 285 sites out of the 1139 sites studied. These results were found by...

2010-05-14 12:52:12

HIV disease tends to progress at a faster rate in infected individuals who consume two or more alcoholic drinks a day, according to an important new paper in AIDS Research and Human Retroviruses, a peer-reviewed journal published by Mary Ann Liebert, Inc. The article is available free online. The article, entitled "Alcohol Use Accelerates HIV Disease Progression," clearly demonstrates that frequent alcohol use, defined as two or more drinks daily, is associated with declining CD4+ cell counts...

2010-04-08 08:51:56

A University of British Columbia doctoral candidate has discovered a previously unknown mechanism for silencing retroviruses, segments of genetic material that can lead to fatal mutations in a cell's DNA. The findings, published April 7 in the journal Nature, could lead to new cancer treatments that kill only tumor cells and leave healthy surrounding tissue unharmed. Danny Leung, a 27-year-old graduate student in the laboratory of Asst. Prof. Matthew Lorincz in the Dept. of Medical Genetics,...

2010-04-02 08:57:06

Four drugs used to treat HIV infection can inhibit a retrovirus recently linked to prostate cancer and chronic fatigue syndrome, researchers at Emory University/Atlanta Veterans Affairs Medical Center and the University of Utah have shown. The results were published on April 1, 2010 by the journal PLoS One. The findings suggest that if XMRV (xenotropic murine leukemia virus-related virus) is proven to be a cause for prostate cancer or chronic fatigue syndrome, those illnesses may be treatable...


Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.