Abstract: Provided is a novel APP (amyloid precursor protein) transgenic non-human animal modeling in vivo the pathophysiological effects and effects on cognitive behavior of early intraneuronal and extracellular brain parenchymal amyloid-? (A?) deposition and cerebral amyloid angiopathy associated with brain microhemorrhages and reduced vasoreactivity and blood flow. Furthermore, methods of screening for therapeutic or diagnostic agents useful in the treatment or diagnosis of Alzheimer's disease, in particular for improving blood flow to the brain are provided as well as the corresponding therapeutic methods.

Abstract: A novel method of identifying and obtaining molecules interacting with neurodegenerative, neurological or neuropsychiatric disorder-associated proteins is provided, which is suitable for drug screening and drug development. Furthermore, drugs and drug targets for the therapeutic intervention of neurodegenerative, neurological or neuropsychiatric disorders, in particular Alzheimer's disease are described.

Abstract: Provided is a novel APP (amyloid precursor protein) transgenic non-human animal modeling in vivo the pathophysiological effects and effects on cognitive behavior of early intraneuronal and extracellular brain parenchymal amyloid-? (A?) deposition and cerebral amyloid angiopathy associated with brain microhemorrhages and reduced vasoreactivity and blood flow. Furthermore, methods of screening for therapeutic or diagnostic agents useful in the treatment or diagnosis of Alzheimer's disease, in particular for improving blood flow to the brain are provided as well as the corresponding therapeutic methods.

Abstract: The present invention relates to a method of monitoring an immunotherapy against amyloidosis and other diseases characterized by the deposition of abnormal protein aggregates. More specifically, it relates to a method of evaluating an immunotherapy against Alzheimer's disease, based on a novel assay that is characterized by scoring immunoreactivity levels of patient sera in amyloid plaque containing samples. The assay possesses highly predictive properties in relation to the clinical outcome of such an immunotherapy, in contrast to previously used, conventional ELISA assays. Therefore, the novel assay is useful for the evaluation of the efficacy of an immunotherapy in a patient suffering from amyloidosis, particularly Alzheimer's disease.