The vascular endothelial growth factor (VEGF) activity in a patient's bloodstream or other biological sample can serve as a diagnostic and prognostic index for cancer, diabetes, heart conditions, and other pathologies. Antibody-sandwich ELISA method and kits for VEGF as an antigen were developed to detect...http://www.google.de/patents/US7541160?utm_source=gb-gplus-sharePatent US7541160 - ELISA for VEGF