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Latest Innate immune system Stories

2012-04-26 22:31:28

Listeria, one of the most deadly causes of bacterial food poisoning, subverts a normally protective immune response to spread its infection more effectively, according to new research at National Jewish Health. Immunologists Laurel Lenz, PhD, Peter Henson, PhD, and their colleagues report online April 26, 2012, in the journal Immunity that production of nitric oxide (NO) by activated macrophages, which is normally thought of as an infection-fighting response, actually helps Listeria...

2012-03-02 01:32:18

A new study turns the well established theory that antibodies are required for antiviral immunity upside down and reveals that an unexpected partnership between the specific and non-specific divisions of the immune system is critical for fighting some types of viral infections. The research, published online on March 1st in the journal Immunity by Cell Press, may lead to a new understanding of the best way to help protect those exposed to potentially lethal viruses, such as the rabies virus....

2012-01-21 00:13:05

These new data are an essential step towards understanding the operation of these key cells in the immune system, and they could provide a new therapeutic approach to fighting infection. They also suggest that the operation of NK cells must be precisely regulated to guarantee an optimum immune reaction. Details of this work are published in the 20 January 2012 issue of the journal Science. Our bodies are subject to attack by many different infectious particles (bacteria, viruses, etc.),...

2011-12-13 14:47:07

Single-celled bacteria communicate with each other using coded messages to coordinate attacks on their targets. Until now, the diversity of codes employed by these invading bacteria was thought to be extremely limited. However, a new report published Dec. 12 in PLoS ONE reveals bacterial communication by a novel, previously undescribed signal type — and, as is often the case in evolutionary stories, some plants have evolved a complementary cypher-breaking detection system that...

2011-12-13 12:17:46

Researchers at the University of Toronto have found an explanation for how the intestinal tract influences a key component of the immune system to prevent infection, offering a potential clue to the cause of autoimmune disorders like rheumatoid arthritis and multiple sclerosis. "The findings shed light on the complex balance between beneficial and harmful bacteria in the gut," said Prof. Jennifer Gommerman, an Associate Professor in the Department of Immunology at U of T, whose findings...

2011-11-29 16:50:09

Coating the surface of an implant such as a new hip or pacemaker with nanosized metallic particles reduces the risk of rejection, and researchers at the University of Gothenburg can now explain why: they fool the innate immune system. The results are presented in the International Journal of Nanomedicine. “Activation of the body´s innate immune system is one of the most common reasons for an implant being rejected,” explains Professor Hans Elwing from the University of...

2011-10-12 23:18:23

Necessary for both innate and adaptive immune reactions; May lead to new treatment pathway Not just important for building strong bones, an international team of scientists has found that vitamin D also plays an essential role in the body's fight against infections such as tuberculosis. A potentially fatal lung disease, tuberculosis is estimated to cause 1.8 million deaths annually and especially impacts those with reduced immunity such as HIV-infected individuals, according to the...

2011-09-08 10:14:31

(Ivanhoe Newswire) — A potential vaccine against tuberculosis (TB) has been found to completely eliminate TB bacteria from infected tissues in some mice. The vaccine was made from a strain of bacteria that are unable to avoid its host´s first-line immune response. Once this first-line defense has been activated, it triggers the more specific immune response that remembers the bacteria and protects against future infection. Tuberculosis, an infectious disease caused by...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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