News tagged with human pathogens
A new optical microscopy approach opens the door to better observations in molecular biology
Researchers from the Institut Pasteur and CNRS have set up a new optical microscopy approach that combines two recent imaging techniques in order to visualize molecular assemblies without affecting their biological ...
May 17, 2012 |
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Cholera's nano-dagger: Researchers observe how pathogen decimates competing bacteria and human cells
Bacteria live in a state of perpetual warfare, with different species battling for dominion over their competitors and when pathogen, over their infected host. New research suggests that the human pathogen Vibrio cholerae, which ...
Feb 29, 2012 |
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Frontal attack or stealth? How subverting the immune system shapes the arms race between bacteria and hosts
Why is it that Mycobacterium tuberculosis can cause tuberculosis with as little as 10 cells, whereas Vibrio cholerae requires the host to ingest up to tens of millions of cells to cause cholera? This is the ...
Feb 27, 2012 |
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The secret life of proteins: Researchers discover dual role of key player in immune system
Northwestern University Feinberg School of Medicine researchers have identified a new and unusual role for a key player in the human immune system. A protein initially believed to regulate one routine function within the ...
Jan 28, 2012 |
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Polar growth at the bacterial scale reveals potential new targets for antibiotic therapy
(PhysOrg.com) -- An international team of microbiologists led by Indiana University researchers has identified a new bacterial growth process -- one that occurs at a single end or pole of the cell instead ...
Jan 17, 2012 |
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New research illustrates how genome adapts to transposon invasion
Small, mobile sequences of DNA left over from viruses, called transposons or "jumping genes" because of their ability to move around the genome, pose a significant threat to the genetic integrity and stability of an organism. ...
Dec 22, 2011 |
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Catching a coral killer
Coral reefs play an important role in marine ecosystems, so it's concerning to scientists, as well as ocean conservationists, that many coral reefs around the world are in distress or dying off.
Dec 20, 2011 |
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Researchers demonstrate new DNA detection technique
A team of researchers from the University of Notre Dame have demonstrated a novel DNA detection method that could prove suitable for many real-world applications.
Dec 16, 2011 |
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New leads on mechanisms that confer virulence to E.coli-type bacteria
A team headed by scientists from the IRB Barcelona reports how the protein Ler, which is found in pathogenic bacteria, interacts with certain DNA sequences, thereby activating numerous genes responsible for ...
Dec 09, 2011 |
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Human cells build protein cages to trap invading Shigella
In research on the never-ending war between pathogen and host, scientists at the Pasteur Institute in Paris have discovered a novel defensive weapon, a cytoskeletal protein called septin, that humans cells deploy to cage ...
Dec 04, 2011 |
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New database for vital model organism launched
A new database promises to be an invaluable resource to scientists who use a unique single-celled fungus to study human diseases.
Nov 28, 2011 |
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Study finds a weak spot on deadly ebolavirus
Scientists from The Scripps Research Institute and the US Army's Medical Research Institute of Infectious Diseases have isolated and analyzed an antibody that neutralizes Sudan virus, a major species of ebolavirus ...
Nov 21, 2011 |
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Fleas collected from Norway rats in downtown LA carry human pathogen
Most fleas collected from rats trapped in downtown Los Angeles, California carried microbes from the genus, Bartonella, many of which are human pathogens, according to a paper in the November Applied and Environmental Mi ...
Nov 17, 2011 |
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'Vietnam time bomb' defused: Scientists find key mechanism by which bacterial pathogen causes melioidosis
A key mechanism by which a bacterial pathogen causes the deadly tropical disease melioidosis has been discovered by an international team of scientists.
Nov 10, 2011 |
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Analysis reveals malaria, other diseases as ancient, adaptive and persistent foes
One of the most comprehensive analyses yet done of the ancient history of insect-borne disease concludes for the first time that malaria is not only native to the New World, but it has been present long before ...
Nov 02, 2011 |
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