[The quantitative assessment of the biological activity of angiogenin]

Methods have been developed for the in vivo quantitative estimation of biological activity of angiogenin, a protein growth factor of blood vessels. The quantitative analysis of angiogenin with the methods of angiogenetic disks in isotopic modification requires nanogram amounts of the angiogenetic. The cutireaction test is less sensitive though technically simple. The methods are developed on animal (mouse and rat) tissues.