News tagged with immune
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
18 hours ago |
4.7 / 5 (17) |
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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
22 hours ago |
4.9 / 5 (7) |
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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
May 20, 2013 |
5 / 5 (5) |
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Immune cells that suppress genital herpes infections identified
Fred Hutchinson Cancer Research Center and University of Washington scientists have identified a class of immune cells that reside long-term in the genital skin and mucosa and are believed to be responsible for suppressing ...
Immunology
May 08, 2013 |
5 / 5 (4) |
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Scientists create personalized bone substitutes from skin cells
A team of New York Stem Cell Foundation (NYSCF) Research Institute scientists report today the generation of patient-specific bone substitutes from skin cells for repair of large bone defects. The study, led by Darja Marolt, ...
Medical research
May 06, 2013 |
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Team finds antibody that transforms bone marrow stem cells directly into brain cells
In a serendipitous discovery, scientists at The Scripps Research Institute (TSRI) have found a way to turn bone marrow stem cells directly into brain cells.
Medical research
Apr 22, 2013 |
5 / 5 (11) |
2
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Moving cells with light holds medical promise
Scientists at Washington University School of Medicine in St. Louis have shown they can coax cells to move toward a beam of light. The feat is a first step toward manipulating cells to control insulin secretion ...
Medical research
Apr 08, 2013 |
5 / 5 (3) |
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Study reveals how melanoma evades chemotherapy
Nitric oxide (NO), a gas with many biological functions in healthy cells, can also help some cancer cells survive chemotherapy. A new study from MIT reveals one way in which this resistance may arise, and ...
Cancer
Apr 08, 2013 |
5 / 5 (1) |
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Hepatitis A virus discovered to cloak itself in membranes hijacked from infected cells
Viruses have historically been classified into one of two types – those with an outer lipid-containing envelope and those without an envelope. For the first time, researchers at the University of North ...
Diseases, Conditions, Syndromes
Apr 04, 2013 |
5 / 5 (3) |
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Comparing mouse and human immune systems: Few differences charted in map to translate mouse findings to humans
(Medical Xpress)—It is a familiar note struck when authors conclude their reports on experiments conducted in mouse models: They suggest caution when translating their findings from mouse to human. A variation ...
Medical research
Apr 02, 2013 |
4 / 5 (1) |
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Researchers find link between blood clotting, immune response
Rice University researchers have found an unexpected link between a protein that triggers the formation of blood clots and other proteins that are essential for the body's immune system. The find could lead ...
Immunology
Apr 01, 2013 |
4.7 / 5 (3) |
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Team discovers how cells distinguish friend from foe
(Medical Xpress)—Researchers at UC Davis have shown how the innate immune system distinguishes between dangerous pathogens and friendly microbes. Like burglars entering a house, hostile bacteria give themselves away by ...
Immunology
Apr 01, 2013 |
4.3 / 5 (3) |
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Transplanted brain cells in monkeys light up personalized therapy
For the first time, scientists have transplanted neural cells derived from a monkey's skin into its brain and watched the cells develop into several types of mature brain cells, according to the authors of ...
Medical research
Mar 14, 2013 |
5 / 5 (2) |
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Some brain cells are better virus fighters
(Medical Xpress)—Viruses often spread through the brain in patchwork patterns, infecting some cells but missing others. New research at Washington University School of Medicine in St. Louis helps explain ...
Medical research
Mar 07, 2013 |
4 / 5 (2) |
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Excess dietary salt identified as autoimmune trigger
For the past few decades, health officials have been reporting increases in the incidence of autoimmune diseases such as multiple sclerosis (MS). Now researchers at Yale School of Medicine, Harvard Medical ...
Medical research
Mar 06, 2013 |
4.4 / 5 (16) |
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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.
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.
