Neurodegenerative dementias, like **Alzheimer's disease** and **Frontotemporal Dementia**, are brain disorders that gradually worsen over time. The exact causes of these diseases are often unknown, though some are linked to **genetic mutations** (changes in genes) and **polymorphisms** (gene variations). These may be inherited through family genes, known as **autosomal dominant** patterns, where a child can get the disease if one parent has it. However, many genes involved in these diseases are not yet discovered. This study aims to explore the genetic makeup (**genotypes**) of patients with suspected or confirmed neurodegenerative dementia. We also study those with a family history of these diseases to identify unknown genetic factors.

• The study is open to adults 18 years and older who can visit our clinic and agree to a blood test.
• Participants should either have a neurodegenerative disorder or be a family member of someone diagnosed with one.
• People who cannot or do not wish to have a blood test cannot participate.