Understanding how prednisone works helps patients appreciate the importance of tapering doses and monitoring for complications, ensuring the benefits outweigh the risks over time. Effects on Inflammatory Mediators Inflammation relies on a complex network of chemical mediators, and prednisone disrupts this network at multiple levels.
How Prednisone Works Immune System: Impact on Inflammation and Immune Response
Complementing this slow genomic effect are rapid non-genomic actions, where the drug triggers immediate signaling cascades that contribute to its vasoconstrictive and anti-edematous effects. It reduces the migration of white blood cells, particularly lymphocytes and eosinophils, to sites of inflammation by downregulating the adhesion molecules required for their movement.
This synthetic corticosteroid mimics the natural cortisol produced by the adrenal glands, binding to glucocorticoid receptors within cells to regulate a vast array of inflammatory and immune genes. This process either promotes the expression of anti-inflammatory proteins or suppresses the transcription of pro-inflammatory cytokines such as interleukins and tumor necrosis factor.
How Prednisone Works Immune System: Impact on Inflammation and Immune Response
Long-term use can lead to metabolic disturbances, osteoporosis, and adrenal suppression because the body senses the high levels of circulating cortisol and reduces its own production. Once inside, the inactive drug is metabolized into its active form, prednisolone, by the enzyme 11-beta-hydroxysteroid dehydrogenase type 1.
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