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By Mayo Clinic staffGaucher's (go-SHAYZ) disease occurs when certain harmful fatty substances build to excessive levels in your liver, spleen, lungs, bone marrow and, less commonly, your brain. This accumulation of fatty material in tissues interferes with the normal functioning of the body's organs, and may cause organ enlargement and bone pain.
Gaucher's disease is caused by a deficiency of the enzyme glucocerebrosidase, which helps the body metabolize the fatty substance glucocerebroside. The disease is sometimes called glucocerebrosidase deficiency.
Gaucher's disease can occur at any age. It's most common in Eastern and Central European (Ashkenazi) Jewish people.
Treatment for Gaucher's disease may involve enzyme replacement and other therapies.
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