Researchers at the University of Sussex, in collaboration with scientists from different institutes worldwide, have identified a blood test capable of early diagnosis of the most aggressive form of brain tumor. The technology has the potential to save lives. Lead author Professor Georgios Giamas and his team have identified distinctive biomarkers (molecules that act as signs of normal processes, diseases, or responses to treatment) within patient blood samples, which could signal the presence of glioblastoma, one of the most aggressive forms of brain tumor.