Alzheimer’s Disease (AD) is a progressive neurodegenerative condition, and the most common cause of dementia. It is characterised by a build-up of certain proteins in the brain. Currently there is no cure, although symptoms can be managed with medication. Researchers use stem cells to model AD in the lab, to understand how it develops and how it might be treated. Researchers have begun to investigate whether gene therapy might one day be used to treat AD, although this work is in very early stages. In this section you will find factsheets about AD and about ongoing research in this area, as well as guidelines as to where you can look for support if you or a loved one are living with AD.