Cytokines are
proteins released by immune system cells that regulate immune responses. Proinflammatory
cytokines coordinate inflammation processes in the body. Increased levels of
proinflammatory cytokines or PICs have been linked with depressive symptoms,
including:
- · dysphoria (opposite of euphoria)
- · anhedonia (inability to experience pleasure)
- · fatigue
- · apathy
- · A sense of helplessness
People with
depression have increased levels of preinflammatory cytokines—this may help to
explain the reason inflammatory diseases and autoimmune diseases are often
associated with depression, as well.
More tomorrow
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