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Glucocerebrosidase deficiency; Glucosylceramidase deficiency
Gaucher disease is a rare genetic disorder in which a person lacks an enzyme called glucocerebrosidase.
Gaucher disease affects an estimated 1 in 50,000 to 1 in 100,000 people in the general population. Persons of Eastern and Central European (Ashkenazi) Jewish heritage are at highest risk for the disease.
It is an autosomal recessive disease. This means that the mother and father must both pass one abnormal copy of the gene to the child in order for the child to develop the disease. A parent who silently carries an abnormal copy of the gene is called a carrier.
The lack of the glucocerebrosidase enzyme causes harmful substances to build up in the liver, spleen, bones, and bone marrow. The substances prevent cells and organs from working properly.
There are three main subtypes of Gaucher disease:
Symptoms vary depending on the type of disease, but may include:
The doctor will perform a physical exam. The patient may have signs of liver and spleen swelling, bone changes, lung disease, eye movement problems, heart problems, or hearing loss.
The following tests may be performed:
Enzyme replacement therapy is available. A bone marrow transplant may be needed in severe cases.
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How well a person does depends on the subtype of the disease. The infantile form of Gaucher disease may lead to early death. Most affected children die before age 5.
Adults with the type 1 form of the disease can expect normal life expectancy with enzyme replacement therapy.
Genetic counseling is recommended for prospective parents with a family history of Gaucher disease. Testing can determine if parents carry the gene that could pass on the Gaucher disease. A prenatal test can also tell if the fetus has Gaucher syndrome.
Stanley CA, Bennett MJ. Defects of metabolism in lipids. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 86.
Kumar V, Abbas AK, Fausto N. Robbins and Cotran Pathologic Basis of Disease. 7th ed. St. Louis, Mo: WB Saunders; 2005:163-165.
Sidransky E, Lamarca ME, Ginns EI. Therapy for Gaucher disease: Don't stop thinking about tomorrow. Mol Genet Metab. 2007 Feb;90(2):122-5. Epub 2006 Nov 3.
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