Adrenoleukodystrophy (ALD) is a rare inherited disorder that affects approximately 1 in 20,000 people worldwide. It is caused by a genetic mutation on the X chromosome that affects the metabolism of very long chain fatty acids. The disease affects the nervous system and can result in serious neurological damage, including loss of coordination, seizures, and blindness.
The exact number of people affected by ALD is difficult to determine as there is no universal registry of cases and the condition is often misdiagnosed. However, it is estimated that between 1 in 18,000 and 1 in 21,000 people may have the disorder. It has been reported that in the United States, there are approximately 5,000 to 10,000 people living with ALD.
ALD is more common in boys than girls, as the disorder is caused by a mutation on the X chromosome, which boys only have one of. It is estimated that 1 in 17,000 boys is affected with ALD, while the rate for girls is only 1 in 39,000.
ALD is a progressive disorder and can lead to severe neurological damage and disability in some cases. Early diagnosis and treatment are essential for improving the prognosis. There are currently no known cures for the disorder, but treatments such as bone marrow transplants and enzyme replacement therapy can help slow the progression of the disease.