The present invention provides a method for the treatment of neuronal disorders, in a mammal such as a human, which method comprises administering an effective, nontoxic and pharmaceutically acceptable amount of at least one QC-inhibitor, optionally in combination with at least one agent, selected from the group consisting of PEP-inhibitors, inhibitors of DP IV/DP IV-like enzymes, NPY-receptor ligands, NPY agonists, NPY antagonists, ACE-inhibitors, PIMT enhancers, inhibitors of beta secretases, inhibitors of gamma secretases and inhibitors of neutral endopeptidase, to a mammal in need thereof.
