noun[mass noun] Biochemistry
A hormone secreted by the kidneys that increases the rate of production of red blood cells in response to falling levels of oxygen in the tissues.
- The mechanism responsible for polycythaemia is the release of the hormone erythropoietin from the kidney as a result of the shortage of oxygen there.
- However, if symptoms become severe, a blood transfusion or injections of synthetic erythropoietin, a hormone normally produced by the kidneys, may help stimulate red blood cell production and ease fatigue.
- Another important renal response to ischemia is the release of erythropoietin, which stimulates the bone marrow to increase production of red blood cells.
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