London: Scientists have discovered in cell cultures, animal models and human tumour tissue that a harmless plant extract can be applied to treat Cushing Disease caused by a tumour.

"Silibinin is the major active constituent of milk thistle seeds. It has an outstanding safety profile in humans and is already used for the treatment of liver disease and poisoning," informed lead researcher Marcelo Paez-Pereda from the Max Planck Institute of Psychiatry in Munich.