News tagged with human immune system
Related topics: proceedings of the national academy of sciences , immune system
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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Honeycomb structure responsible for bacteria's extraordinary sense
(PhysOrg.com) -- Cornell researchers have peered into the complex molecular network of receptors that give one-celled organisms like bacteria the ability to sense their environment and respond to chemical ...
Feb 20, 2012 |
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Malaria parasite goes bananas before sex: new study
(PhysOrg.com) -- New research from the University of Melbourne shows how the malaria parasite (Plasmodium falciparum) changes into a banana shape before sexual reproduction, a finding that could provide target ...
Feb 14, 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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Stockholm Convention scientists seek ban on chemical
Scientists at the Stockholm Convention, which interdicts dangerous chemicals, said on Friday they will recommend the banning of a flame retardant commonly used in polystyrene.
Oct 14, 2011 |
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New compound combats drug-resistant bacteria
(PhysOrg.com) -- Yale scientists using bits of material from the human immune system have developed a compound that can neutralize or kill several varieties of drug-resistant and other dangerous bacteria. ...
Sep 27, 2011 |
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'Trojan Horse' particle sneaks chemotherapy in to kill ovarian cancer cells
A common chemotherapy drug has been successfully delivered to cancer cells inside tiny microparticles using a method inspired by our knowledge of how the human immune system works. The drug, delivered in this way, reduced ...
Sep 12, 2011 |
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Juvenile diarrhea virus analyzed
Rice University scientists have defined the structure -- down to the atomic level -- of a virus that causes juvenile diarrhea. The research may help direct efforts to develop medications that block the virus ...
Jul 18, 2011 |
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Malaria parasites use camouflage to trick immune defences of pregnant women
Copenhagen University Hospital and the University of Copenhagen have discovered why malaria parasites are able to hide from the immune defences of expectant mothers, allowing the parasite to attack the placenta. The discovery ...
Jul 11, 2011 |
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Self or non-self: Social amoeba rely on genetic 'lock and key' to identify kin
The ability to identify self and non-self enables cells in more sophisticated animals to ward off invading infections, but it is critical to even simpler organisms such as the social amoebae Dictyostelium discoideum.
Jun 23, 2011 |
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Sniffing out a new source of stem cells
A team of researchers, led by Emmanuel Nivet, now at the Salk Institute for Biological Studies, La Jolla, has generated data in mice that suggest that adult stem cells from immune system tissue in the smell-sensing region ...
Jun 13, 2011 |
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Scientists identify most proteins made by parasitic worm
A team led by Thomas B. Nutman, M.D., of the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, has completed a large-scale analysis of most of the proteins produced ...
May 23, 2011 |
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Study unlocks secrets of plague with stunning new imaging techniques
(PhysOrg.com) -- Researchers at Sandia National Laboratories have developed a super-resolution microscopy technique that is answering long-held questions about exactly how and why a cell's defenses fail against ...
Chemistry / Analytical Chemistry
May 16, 2011 |
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Learning to tolerate our microbial self
(PhysOrg.com) -- The human gut is filled with 100 trillion symbiotic bacteria—ten times more microbial cells than our own cells—representing close to one thousand different species. "And yet, if ...
Apr 21, 2011 |
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New markers for allergic disorders thanks to analysis of medical databases
Researchers at the University of Gothenburg, Sweden, have developed new methods for analysing medical databases that can be used to identify diagnostic markers more quickly and to personalise medication for allergic disorders. ...
Medicine & Health / Medical research
Jan 11, 2011 |
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