Learn About Dentatorubral-Pallidoluysian Atrophy

What is the definition of Dentatorubral-Pallidoluysian Atrophy?

Dentatorubral-pallidoluysian atrophy, commonly known as DRPLA, is a progressive brain disorder that causes involuntary movements, mental and emotional problems, and a decline in thinking ability. The average age of onset of DRPLA is 30 years, but this condition can appear anytime from infancy to mid-adulthood.

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What are the causes of Dentatorubral-Pallidoluysian Atrophy?

DRPLA is caused by a mutation in the ATN1 gene. This gene provides instructions for making a protein called atrophin 1. Although the function of atrophin 1 is unclear, it likely plays an important role in nerve cells (neurons) in many areas of the brain.

How prevalent is Dentatorubral-Pallidoluysian Atrophy?

DRPLA is most common in the Japanese population, where it has an estimated incidence of 2 to 7 per million people. This condition has also been seen in families from North America and Europe.

Is Dentatorubral-Pallidoluysian Atrophy an inherited disorder?

This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person has one parent with the condition.

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Who are the sources who wrote this article ?

Published Date: November 01, 2008Published By: National Institutes of Health

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