PHAGE MEDIATED IMMUNO-PCR FOR THE DIAGNOSIS OF ALZHEIMER'S DISEASE

Method for diagnosing Alzheimer's disease in an individual, comprising the steps of providing at least one serum sample derived from the individual, providing at least one preparation of phage clones expressing peptides that mimic conformational epitopes of the Aβ- 42 peptide, reacting said at least one serum sample with said at least one preparation of phage clones expressing peptides that mimic conformational epitopes of Aβ-42, so that antibodies that may be present in said serum and are directed against the Aβ-42 peptide bind to the peptides expressed by phage clones of said preparation of phage clones, detecting, by real-time PCR technique, the quantity of phage clones of said preparation to which said antibodies have bound, and determining, based on the quantity of phage clones of said preparation to which said antibodies have bound, whether the individual from whom said serum sample was derived suffers from Alzheimer's disease.