cerebroatrophic hyperammonemia


cerebroatrophic hyperammonemia

rare progressive neurological disorder that causes mental retardation, compulsive hand movements, reduced muscle tone, difficulties in walking, autism, decreased body weight, failure of the head to grow with age, and the increased presence of ammonia in the blood (hyperammonemia). Rett syndrome causes progressive disabilities in intellectual and motor development after about the first year of life. It is a sex-linked hereditary disorder that exclusively affects girls and occurs in about one of every 15,000 female births. The disease was identified by the Austrian physician Andreas Rett. There is no cure for Rett syndrome; however, the majority of individuals with the disorder reach middle adulthood.

Learn more about cerebroatrophic hyperammonemia with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Explore Dictionary.com
Previous Definition: cerebro-spinal
More from Thesaurus.com
Synonyms and Antonyms for cerebroatrophic hyperammonemia
More from Reference.com
Search for articles containing cerebroatrophic hyperammonemia
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature