Potop I, Boeru V, Prahoveanu E, Simionescu L, Petrescu A, Popescu A
Endocrinologie. 1977 Jan-Mar;15(1):13-8.
The authors show that a thymus polypeptide extract, TP1, prepared by them has the effedt of stimulating the formation of anti-influenza serum antibodies and do not show antigenic properties. The extract causes increase of serum lymphocytes. Electrophoretic analysis in polyacrylamide gel reveals a number of 11 fraction, while paper chromatography for amino acids, a number of 12 spots.