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It is stimulated by decreased O 2 in circulation, which is detected by the kidneys, which then secrete the hormone erythropoietin. [2] This hormone stimulates proliferation and differentiation of red cell precursors, which activates increased erythropoiesis in the hemopoietic tissues, ultimately producing red blood cells (erythrocytes). [ 2 ]
The growth of CFU-GEMM is stimulated by the stem cell factor, or SCF. SCF has been found also to synergize with GM-CSF, IL-6, IL-3, IL-11 or erythropoietin to increase the numbers of CFU-GEMM. [6] CFU-GEMM gives rise to CFU-GM (leading to monoblasts and myeloblasts), CFU-Meg (leading to megakaryoblasts), and CFU-E (leading to proerythroblasts).
Erythropoietin (/ ɪ ˌ r ɪ θ r oʊ ˈ p ɔɪ. ɪ t ɪ n,-r ə-,-p ɔɪ ˈ ɛ t ɪ n,-ˈ iː t ɪ n /; [1] [2] [3] EPO), also known as erythropoetin, haematopoietin, or haemopoietin, is a glycoprotein cytokine secreted mainly by the kidneys in response to cellular hypoxia; it stimulates red blood cell production (erythropoiesis) in the bone marrow.
Erythropoiesis-stimulating agents (ESA) are medications which stimulate the bone marrow to make red blood cells. [1] They are used to treat anemia due to end stage kidney disease , chemotherapy , major surgery, or certain treatments in HIV/AIDS .
[8] [9] Epoetin alfa is an erythropoiesis-stimulating agent. [8] It stimulates erythropoiesis (increasing red blood cell levels) and is used to treat anemia, commonly associated with chronic kidney failure and cancer chemotherapy. Epoetin alfa is developed by Amgen. [8] It is on the World Health Organization's List of Essential Medicines. [10]
It stimulates erythropoiesis (production of red blood cells) in the bone marrow. Calcitriol, the activated form of vitamin D, promotes intestinal absorption of calcium and the renal reabsorption of phosphate. Renin is an enzyme which regulates angiotensin and aldosterone levels.
Darbepoetin alfa / d ɑːr b ə ˈ p oʊ ɪ t ɪ n / is a re-engineered form of erythropoietin containing 5 amino acid changes (N30, T32, V87, N88, T90) resulting in the creation of 2 new sites for N-linked carbohydrate addition.
Red blood cells (RBCs), referred to as erythrocytes (from Ancient Greek erythros 'red' and kytos 'hollow vessel', with -cyte translated as 'cell' in modern usage) in academia and medical publishing, also known as red cells, [1] erythroid cells, and rarely haematids, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O 2) to the body tissues—via ...