Allan-Herndon-Dudley Mental Retardation
Definition:

Allan-Herndon-Dudley mental retardation is a rare genetic disorder that leads to severe mental retardation. This condition occurs only in males.


Diagnosis:

Observation of the symptoms as well as genetic testing is done to diagnose the onset of the disease.


Treatment:

There is no exact treatment for the disorder.


Symptoms and Signs:

Among the symptoms of the disease are eventual mental retardation, impaired speech, weak muscle tone, and joint deformities. As they grow older patients become bound on a wheelchair.


Causes:

The disease is caused by a defect in the gene SLC16A2.