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・ Erythropoietic porphyria
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Erythropoietin
・ Erythropoietin in neuroprotection
・ Erythropoietin receptor
・ Erythropotamos
・ Erythropterus
・ Erythropterus amabilis
・ Erythropterus boliviensis
・ Erythropterus cuissi
・ Erythropterus kochi
・ Erythropterus urucuri
・ Erythrorchis
・ Erythrose
・ Erythrose 4-phosphate
・ Erythrose-4-phosphate dehydrogenase
・ Erythroseris


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Erythropoietin : ウィキペディア英語版
Erythropoietin

Erythropoietin, (, ) (from (ギリシア語:ἐρυθρός), ''erythros'' 'red' and , ''poiein'' 'make') also known as EPO, is a glycoprotein hormone that controls erythropoiesis, or red blood cell production. It is a cytokine (protein signaling molecule) for erythrocyte (red blood cell) precursors in the bone marrow. Human EPO has a molecular weight of 34 kDa.
Also called hematopoietin or hemopoietin, it is produced by interstitial fibroblasts in the kidney in close association with peritubular capillary and proximal convoluted tubule. It is also produced in perisinusoidal cells in the liver. While liver production predominates in the fetal and perinatal period, renal production is predominant during adulthood. In addition to erythropoiesis, erythropoietin also has other known biological functions. For example, it plays an important role in the brain's response to neuronal injury. EPO is also involved in the wound healing process.
Exogenous erythropoietin is produced by recombinant DNA technology in cell culture. Several different pharmaceutical agents are available with a variety of glycosylation patterns, and are collectively called erythropoiesis-stimulating agents (ESA). The specific details for labelled use vary between the package inserts, but ESAs have been used in the treatment of anemia in chronic kidney disease, anemia in myelodysplasia, and in anemia from cancer chemotherapy. Boxed warnings include a risk of death, myocardial infarction, stroke, venous thromboembolism, and tumor recurrence. Exogenous erythropoietin has been used illicitly as a performance-enhancing drug; it can often be detected in blood, due to slight differences from the endogenous protein, for example, in features of posttranslational modification.
== Function ==


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