Molecular and biochemical studies of Alzheimer's disease have recently undergone a major revolution with the discovery of the presenilin genes. An understanding of the mechanisms by which mutations in the presenilin genes cause neurodegeneration and dementia should greatly facilitate the development of novel strategies for treating Alzheimer's disease and related disorders.

Molecular and biochemical studies of Alzheimer's disease have recently undergone a major revolution with the discovery of the presenilin genes. An understanding of the mechanisms by which mutations in the presenilin genes cause neurodegeneration and dementia should greatly facilitate the development of novel strategies for treating Alzheimer's disease and related disorders.