Method for assisting the diagnosis of Alzheimer's disease by measuring the amyloid β peptide (X- ≧ 41) and tau

摘要

(57) [Abstract] The present invention provides methods useful for assisting in the diagnosis of Alzheimer's disease. The method includes measuring the amount of amyloid β peptides in cerebrospinal fluid of patients with (x- ≧ 41). In general, high levels of peptides, not consistent with a diagnosis of Alzheimer's disease. May provide a positive diagnostic test together with other low level of peptides and, consistent with the disease. Other methods include the step of measuring the amount of both Aβ and tau (x- ≧ 41). High levels of tau and low levels of (x- ≧ 41) Aβ is a positive indication of Alzheimer's disease, on the other hand, low levels of tau and the high level of (x- ≧ 41) Aβ is, the negative of Alzheimer's disease is an indicator.