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1926 Chem. Abstr. 20 1839 Hemopoëtin, a substance which appears in the serum of organisms exposed to reduced pressure and has a marked stimulating effect on the bone marrow resulting in increased regenerative capacity of the blood.

1932 Wilkinson & Klein in Lancet 2 Apr. 721/1 Hæmopoietin may be identified with or allied to Castle's ‘intrinsic factor’ of normal human gastric juice.

1932 Wilkinson & Klein in Lancet 2 Apr. 721/2 This ‘enzyme’ acting on the proteins in a normal diet may produce a substance which is stored as the active principle in liver until it is required for haemopoietic regeneration... It is proposed temporarily to term this substance in hog's stomach ‘haemopoietin’.

1960 Blood XVI. 1407 Up to the present the only reproducible sources of hemopoietine are plasma and urine of animals made severely hypoxic.

1970 S. B. Krantz & L. Jacobson Erythropoietin i. 4 The plasma factor that increased erythropoiesis had been termed hemopoietine by Carnot and Deflandre; however, as work proceeded, it appeared to be involved exclusively in red cell production.., and erythropoietin became the adopted name.