Monday, February 9, 2009

Sympathectomy induces mast cell hyperplasia

Mast cell hyperplasia is found in different pathologies such as chronic inflammatory processes, fibrotic disorders, wound healing or neoplastic tissue transformation. The functional significance of the accumulation of mast cells in these processes is largely unknown. It is now established that bone marrow-derived mast cell progenitors circulate in peripheral blood and subsequently migrate into the tissue where they undergo final maturation under the influence of local microenvironmental factors. Cytokines are of particular importance for mast cell recruitment, development, and function.
http://www.ncbi.nlm.nih.gov/pubmed/11919420

Long-term superior cervical sympathectomy induces mast cell hyperplasia and increases histamine and serotonin content in the rat dura mater
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