Huntington Disease - The Most Common Hereditary Brain Disorders

Huntington Disease - The Most Com mon Hereditary Brain Disorders

Huntington disease is an autosomal dominant disorder, meaning that a person needs one copy of the defective gene to develop the disorder.

This altered HTT gene passes on between generations, being passed down from parent to child. This disease leads to brain changes causing abnormal involuntary movements, decreased thinking and reasoning skills, and mood changes such as irritability and depression.

Symptoms of Huntington Disease Huntington disease is now considered as one of the most common hereditary brain disorders. It tends to progress over a 10 to 20 year period, affecting both the basal ganglia and the brain cortex. The basal ganglia are responsible for controlling coordination.

How to test if you are at risk?

To test if you’re at risk of developing Huntington’s disease there is a presymptomatic testing done to measure the number of repeats in the Huntington’s disease gene. This test is a blood test and is done on people who do not have any symptoms of Huntington’s disease. This is done to let people know if they are going to develop this condition or not, easing any uncertainty.

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