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New immune system discovered

(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.

Immunology created May 20, 2013 | popularity 4.8 / 5 (29) | comments 8 | with audio podcast

Do salamanders hold the solution to regeneration?

Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have ...

Medical research created May 20, 2013 | popularity 4.9 / 5 (7) | comments 4 | with audio podcast

Immune protein could stop diabetes in its tracks

Melbourne researchers have identified an immune protein that has the potential to stop or reverse the development of type 1 diabetes in its early stages, before insulin-producing cells have been destroyed.

Immunology created May 20, 2013 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Research shows how immune system peacefully co-exists with 'good' bacteria

The human gut is loaded with commensal bacteria – "good" microbes that, among other functions, help the body digest food. The gastrointestinal tract contains literally trillions of such cells, and yet the ...

Medical research created May 22, 2013 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Going live: Immune cell activation in multiple sclerosis

Biological processes are generally based on events at the molecular and cellular level. To understand what happens in the course of infections, diseases or normal bodily functions, scientists would need to ...

Immunology created 14 hours ago | popularity 5 / 5 (4) | comments 0 | with audio podcast

Ground breaking cancer research finds immune system link

(Medical Xpress)—Curtin University researchers have found evidence that targeting specific cells in the body can reverse the effects of cancer on the immune system.

Cancer created 17 hours ago | popularity 5 / 5 (3) | comments 0

Study suggests new source of kidneys for transplant

Nearly 20 percent of kidneys that are recovered from deceased donors in the U.S. are refused for transplant due to factors ranging from scarring in small blood vessels of the kidney's filtering units to the organ going too ...

Medical research created May 20, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Vaccine blackjack: IL-21 critical to fight against viral infections

(Medical Xpress)—Scientists at Emory Vaccine Center have shown that an immune regulatory molecule called IL-21 is needed for long-lasting antibody responses in mice against viral infections.

Immunology created May 23, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Resistance to last-line antibiotic makes bacteria resistant to immune system

Bacteria resistant to the antibiotic colistin are also commonly resistant to antimicrobial substances made by the human body, according to a study in mBio, the online open-access journal of the American Society for Microb ...

Diseases, Conditions, Syndromes created May 21, 2013 | popularity 4.5 / 5 (2) | comments 0

Anti-CD47 antibody may offer new route to successful cancer vaccination

(Medical Xpress)—Scientists at the School of Medicine have shown that their previously identified therapeutic approach to fight cancer via immune cells called macrophages also prompts the disease-fighting killer T cells ...

Cancer created May 21, 2013 | popularity 4.5 / 5 (2) | comments 0 | with audio podcast

Measles surges in UK years after flawed research (Update)

More than a decade ago, British parents refused to give measles shots to at least a million children because of now discredited research that linked the vaccine to autism. Now, health officials are scrambling ...

Diseases, Conditions, Syndromes created May 20, 2013 | popularity 5 / 5 (1) | comments 0

Monoclonal antibody appears effective and safe in asthma Phase IIa trial

A novel approach to obstructing the runaway inflammatory response implicated in some types of asthma has shown promise in a Phase IIa clinical trial, according to U. S. researchers.

Diseases, Conditions, Syndromes created May 21, 2013 | popularity 5 / 5 (1) | comments 0

Biomarkers discovered for inflammatory bowel disease

Using the Department of Defense Serum Repository (DoDSR), University of Cincinnati (UC) researchers have identified a number of biomarkers for inflammatory bowel disease (IBD), which could help with earlier diagnosis and ...

Diseases, Conditions, Syndromes created May 21, 2013 | popularity 5 / 5 (1) | comments 0

Fast-acting mothers' milk for healthier babies

Human breastmilk responds quickly to protect the child when there is an infection in mothers or babies, according to new international research led by The University of Western Australia.

Immunology created May 23, 2013 | popularity 5 / 5 (1) | comments 0

Non-Hodgkin lymphoma survival doubles since early 1970s

More than half of patients diagnosed with Non-Hodgkin Lymphoma (NHL) are now surviving the disease thanks to improved diagnosis and treatment, according to a new report1 from Cancer Research UK.

Cancer created May 23, 2013 | popularity 5 / 5 (1) | comments 0

Immunity (medical)

Immunity is a biological term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Immunity involves both specific and non-specific components. The non-specific components act either as barriers or as eliminators of wide range of pathogens irrespective of antigenic specificity. Other components of the immune system adapt themselves to each new disease encountered and are able to generate pathogen-specific immunity.

Adaptive immunity is often sub-divided into two major types depending on how the immunity was introduced. Naturally acquired immunity occurs through contact with a disease causing agent, when the contact was not deliberate, whereas artificially acquired immunity develops only through deliberate actions such as vaccination. Both naturally and artificially acquired immunity can be further subdivided depending on whether immunity is induced in the host or passively transferred from a immune host. Passive immunity is acquired through transfer of antibodies or activated T-cells from an immune host, and is short lived, usually lasts only a few months, whereas active immunity is induced in the host itself by antigen, and lasts much longer, sometimes life-long. The diagram below summarizes these divisions of immunity.

For more information about Immunity (medical), read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

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