Learn all about Retrolisthesis, the back pain which is due to the displacement of vertebrae of the spine, its symptoms, causes and treatments used to get rid of it. Retrolisthesis is relatively rare but when present is associated with increased back pain.
One of the best-known chemical mediators released from cells during inflammation is histamine, which triggers vasodilation and increases vascular permeability. Stored in granules of circulating basophils and mast cells, histamine is released immediately when these cells are injured.
These mediators are released by a process called degranulation following activation of the eosinophil, and are toxic to both parasite and host tissues. In normal individuals, eosinophils make up about 1â6% of white blood cells, and are about 12â17 micrometres in size.