[A bone marrow factor causing hyperglycemia and glycosuria: released glucose comes from general glycogenolysis, especially in muscle].

An agent extracted from calf bone marrow has a potent hyperglycemic effect when injected into rabbits and causes a very high glycosuric release. This high glucose release come from generalized glycogenolysis, particularly in muscles, contrary to glucagon effect. This agent has glycoprotein characteristics. It might be named, according to its origin: "erthromyelin".