From Wikipedia:
Gaucher's disease is a genetic disease in which a fatty substance (lipid) accumulates in
cells and certain organs. Gaucher's disease is the most common of the
lysosomal storage diseases.
It is a form of
sphingolipidosis (a subgroup of lysosomal storage diseases), as it involves dysfunctional metabolism of
sphingolipids.
The disorder is characterized by bruising, fatigue, anemia, low blood
platelets, and enlargement of the liver and spleen. It is caused by a
hereditary deficiency of the enzyme
glucocerebrosidase.
The enzyme acts on the fatty acid glucosylceramide. When the enzyme is
defective, glucosylceramide accumulates, particularly in white blood
cells, most often macrophages (
mononuclear leukocytes). Glucosylceramidase can collect in the
spleen, liver,
kidneys,
lungs,
brain and bone marrow.
Symptoms may include enlarged spleen and liver, liver malfunction,
skeletal disorders and bone lesions that may be painful, severe
neurologic complications, swelling of
lymph nodes and (occasionally) adjacent joints, distended abdomen, a brownish tint to the skin,
anemia, low blood
platelets and yellow fatty deposits on the white of the eye (
sclera).
Persons affected most seriously may also be more susceptible to
infection. Some forms of Gaucher's disease may be treated with enzyme
replacement therapy.
The disease is caused by a
recessive mutation in a gene located on
chromosome 1 and affects both males and females. About 1 in 100 people in the United States are
carriers of the most common type of Gaucher disease. The carrier rate among
Ashkenazi Jews is 8.9% while the birth incidence is 1 in 450.
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There was some very promising news that came out last week about treatment of Gaucher Disease:
Genzyme reports encouraging data for Gaucher disease drug candidate
Genzyme is also researching treatments for Niemann-Pick Type B, including enzyme replacement therapy. A drug currently used to treat Gaucher's, migulstat, is also used to stem the effects of Niemann-Pick Type C, although there are some potentially significant side effects to its use in NPC patients.
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The "cheat sheet" about Gaucher Disease from the National Library of Medicine is
here.
Gaucher Disease is just one of 7,000 rare diseases, most without cures
and very few treatments. Please see the rare disease facts at
GlobalGenes.org and feel free to share this post with anyone and everyone.
Rare Disease Day is February 28, 2013.