World Pain Foundation – link between the nervous and immune systems

http://worldpainfoundation.org/

The link between the nervous and immune systems is an important one. Cytokines, a type of protein found in the nervous system, are also part of the body’s immune system, the body’s shield for fighting off disease. Cytokines can trigger pain by promoting inflammation, even in the absence of injury or damage. Certain types of cytokines have been linked to nervous system injury. After trauma, cytokine levels rise in the brain and spinal cord and at the site in the peripheral nervous system where the injury occurred. Improvements in our understanding of the precise role of cytokines in producing pain, especially pain resulting from injury, may lead to new classes of drugs that can block the action of these substances.

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