Abstract:

Inflammation is a physiological host response to external challenges or cellular injury such as pathogens, damaged cells or irritants leading to the release of a complex array of inflammatory mediators and aiding the recovery of tissue structure and function.All inflammatory processes develop along a known sequence: locally increased blood supply, leakage of fluid, small molecule or proteins and infiltration of cells.Inflammation is not a synonym for infection, even in case where inflammation is caused by infection, response includes clinical signs of erythema, edema, hyperalgesia and pain. Since the ancient Greek and Roman era five basic symptoms of inflammation have been known i.e, redness, swelling, heat, pain and deranged function are produced by inflammatory agents such as nitric oxide, prostaglandins, bradykinin, serotonin, leukotrienes and histamine. The inflammatory process is a series of events that can be elicited by numerous stimuli such as infectious and thermal or physical injury through years of ingenious synthesis and structural modifications. 

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