News tagged with immune

Related topics: immune system

Evolving immune fighters in the gut

The inside of our small intestine teems with microbes – our gut microbiome – while just across a thin barrier, the immune system patrols and prepares for battle.

Nov 03, 2016
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Mechanism of an effective MEK inhibitor identified

Understanding the effects of certain targeted therapies on antitumor immunity is necessary to design combined interventions for more effective cancer treatment. In the past, data have shown that trametinib, an FDA-approved ...

Nov 01, 2016
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Missing link between hemolysis and infection found

Worldwide, millions of people suffer from hemolysis, the breakdown of red blood cells, such as those afflicted with sickle-cell disease, malaria or sepsis. These patients face an unprecedented risk of death from bacterial ...

Oct 31, 2016
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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.

This text uses material from Wikipedia, licensed under CC BY-SA

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