Short answer · Medically reviewed summary · Last updated: 2023-07-13
Farber disease is a rare genetic disorder that affects the breakdown and storage of certain fats in the body. It is caused by mutations in the ASAH1 gene, which is responsible for producing an enzyme called acid ceramidase.
Is Farber disease hereditary?
Is Farber disease hereditary? The genetic component explained in plain language, reviewed against medical sources, with patient experiences.
Farber disease is a rare genetic disorder that affects the breakdown and storage of certain fats in the body. It is caused by mutations in the ASAH1 gene, which is responsible for producing an enzyme called acid ceramidase. This enzyme plays a crucial role in breaking down a type of fat called ceramide.
Farber disease is inherited in an autosomal recessive manner, which means that both parents must carry a copy of the mutated gene for their child to be affected. When both parents are carriers, there is a 25% chance with each pregnancy that the child will inherit two copies of the mutated gene and develop Farber disease.
Individuals with Farber disease have a deficiency of acid ceramidase, leading to the accumulation of ceramide in various tissues and organs. This buildup can cause a range of symptoms, including joint deformities, hoarseness, difficulty swallowing, enlarged liver and spleen, and respiratory problems. The severity and progression of the disease can vary widely among affected individuals.
Genetic testing can be performed to identify mutations in the ASAH1 gene and confirm a diagnosis of Farber disease. Prenatal testing is also available for families with a known history of the condition.
Since Farber disease is a genetic disorder, it is important for individuals with a family history of the condition to seek genetic counseling before planning a pregnancy. A genetic counselor can provide information about the risk of having a child with Farber disease and discuss available testing options.
