All Articles Tagged As: viruses
Modern microbialites may be endemic remnants of ancient ecosystems
...> Full Article
 | Transfer RNA is an ancient molecule, central to every task a cell performs and thus essential to all life. A new study from the University of Illinois indicates that it is also a great historian, preserving some of the earliest and most profound events of the evolutionary past in its structure. ...> Full Article |
 | Intriguing find reveals more mysteries from Mexico's Cuatro Cienegas ...> Full Article |
 | Reassortment of the influenza A virus occurs frequently throughout its evolutionary history. Researchers at Pennsylvania State University and the National Institute of Health used an evolutionary analysis of influenza viruses sampled from 1918 -- 2005 to investigate the influenza viruses that cause seasonal epidemics in humans, particularly those where mortality was unusually high. ...> Full Article |
Biologists have examined the complete genomes of viruses that infect the bacteria E. coli, P. aeruginosa and L. lactis and have found that many of these viral genomes exhibit codon bias, the tendency to preferentially encode a protein with a particular spelling.
...> Full Article
Researchers at Harvard Medical School have identified a gene in Asian monkeys that may have evolved as a defense against lentiviruses, the group of viruses that includes HIV. The study, published February 29 in the open-access journal PLoS Pathogens, suggests that AIDS is not a new epidemic.
...> Full Article
Scientists who have studied the genome of the virus that caused severe acute respiratory syndrome (SARS) say their comparisons to related viruses offer new evidence that the virus infecting humans originated in bats.
...> Full Article
 | Parts of feline immunodeficiency virus (FIV) isolated from wild lions have undergone substantial genetic recombination, says new research. The sequencing of the two full FIV genomes of different lion subtypes shows the importance of whole-genome analysis in understanding complex genetic events. These findings will be relevant to big cat conservation and developing more effective animal models for HIV. ...> Full Article |
 | A University of Delaware research team has received a $1.2 million National Science Foundation grant to study one of the least appreciated of all life forms--viruses. ...> Full Article |
A cluster of antiviral genes in humans has likely battled retroviral invasions for millions of years. New research by Sara Sawyer, Ph.D., a postdoctoral research fellow in the Basic Sciences Division at Fred Hutchinson Cancer Center, now finds that in addition to the previously identified TRIM5 gene that can defend against retroviruses like HIV, a related gene right next door, called TRIM22, may have participated in antiviral defense.
...> Full Article
When ancient retroviruses slipped bits of their DNA into the primate genome millions of years ago, they successfully preserved their own genetic legacy. Today an estimated 8 percent of the human genetic code consists of endogenous retroviruses (ERVs)--the DNA remnants from these so-called 'selfish parasites.'
...> Full Article
 | Taking the medical history of a grassland may seem a bit esoteric – after all, how sick can grass be? However, scientists have discovered plant viruses from as early as 1917 containing information crucial not only for plant scientists, but for those in ecology, human health and bioterrorism. ...> Full Article |
 | A team led by scientists from the Columbia University Mailman School of Public Health, Pennsylvania State University, the USDA Agricultural Research Service, University of Arizona, and 454 Life Sciences has found a significant connection between the Israeli Acute Paralysis Virus (IAPV) and colony collapse disorder (CCD) in honey bees. The findings, an important step in addressing the disorder that is decimating bee colonies across the country, are published in the journal Science this week. ...> Full Article |
 | A gene mutation that appears to be responsible for changing relatively mild forms of the West Nile virus into a highly virulent and deadly disease in American crows has been identified by a team of scientists led by a researcher at the University of California, Davis. ...> Full Article |
 | The first Australian trials of a vaccine developed by Queensland University of Technology that could save Australia's iconic koala from contracting chlamydia are planned to begin later this year. ...> Full Article |
Human resistance to a retrovirus that infected chimpanzees and other nonhuman primates 4 million years ago ironically may be at least partially responsible for the susceptibility of humans to HIV infection today.
...> Full Article
Mice with chronic herpes virus infections can better resist the bacterium that causes plague and a bacterium that causes one kind of food poisoning, researchers report in this week's Nature.
...> Full Article
|
|
Subscribe
