Abstract
It has been shown that the effect of ceruloplasmin is a new one of conditions which accelates erythropoietic activity. It is presented data obtained by autoradiographic methods combined with tissue culture to show that erythropoietc activity induced by ceruloplasmin causes an increase of DNA synthesis by marrow cells as well as anemic or hypoxic status. But it is not clear whether this increase in DNA synthesis may associated with an increase in hemoglobin synthesis.
