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Riley-Day syndrome - Overview

Alternative Names

Familial dysautonomia; Hereditary sensory and autonomic neuropathy - type III (HSAN III)

Definition of Riley-Day syndrome:

Riley-Day syndrome is an inherited disorder that affects the development and function of nerves throughout the body.

Causes, incidence, and risk factors:

Riley-Day syndrome is passed down through families (inherited). A person must inherit a copy of the defective gene from each parent to develop the condition.

This condition is seen most often in people of Eastern European Jewish ancestry (Ashkenazi Jews), where the incidence is 1 in 3,700. The disease is caused by a change (mutation) of the IKBKAP gene on chromosome 9. It is rare in the general population.

  • Reviewed last on: 10/15/2008
  • Diana Chambers, MS, EdD, Certified Genetics Counselor (ABMG), Charter Member of the ABGC, University of Tennessee, Memphis, TN. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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