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e·ryth·ro·poi·e·tin (EPO),(ĕ-rith'rō-poy'ĕ-tin), [MIM*133170]
A protein containing sialic acid that enhances erythropoiesis by stimulating formation of proerythroblasts and release of reticulocytes from bone marrow; it is formed by the kidney and liver, and possibly by other tissues, and can be detected in human plasma and urine.
hematopoietin(hē″mă-tō-poy′ĕ-tĭn, hĕm″) [″ + Gr. poiein, to make]
Any growth factor that influences the development of blood cells.