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Behavioral Symptoms
In Alzheimer�s disease, symptoms that relate to action or emotion, such as wandering, depression, anxiety, hostility, and sleep disturbances.
Beneficiary
An individual named in a will who is designated to receive all or part of an estate upon the death of a will maker.
Beta Amyloid Protein
A specific type of amyloid normally found in humans and animals. In Alzheimer�s disease, beta amyloid is abnormally processed by nerve cells and becomes deposited in amyloid plaques in the brains of persons with the disease.
Binswanger�s Disease
A type of dementia associated with stroke-related changes in the brain.
Biomarker
Used to indicate or measure a biological process (for instance, levels of a specific protein in blood or spinal fluid, genetic mutations, or brain abnormalities observed in a PET scan or other imaging test). Detecting biomarkers specific to a disease can aid in the identification, diagnosis, and treatment of affected individuals and people who may be at risk but do not yet exhibit symptoms.
Blood-Brain Barrier
The selective barrier that controls the entry of substances from the blood into the brain.
Brain
One of the two components of the central nervous system, the brain is the center of thought and emotion. It is responsible for the coordination and control of bodily activities, and the interpretation of information from the senses (sight, hearing, smell, etc.).
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