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Histiocytosis Research Trust
PO Box 435
Leeds, LS17 1GE
The Histiocytosis Research Trust is a non-profit organization dedicated to promoting vital scientific research into uncovering not only the causes of histiocytosis diseases but also ensuring early diagnosis, effective treatment and a cure. They also aim to support parents and their families as well as raise public and professional awareness about histiocytic disorders. Histiocytoses are diseases affecting white blood cells known as histiocytes. Histiocytes are large phagocytic cells (macrophages) that normally play a role in responding to infection and injury. A phagocytic cell is any "scavenger cell" that engulfs and destroys invading microorganisms or cellular debris. There are several types of histiocyte and therefore several diseases caused by these cells and known as histiocytoses.
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