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Endocrinology. Lysosomal storage diseases (LSDs; / ˌlaɪsəˈsoʊməl /) are a group of over 70 rare inherited metabolic disorders that result from defects in lysosomal function. [ 1 ][ 2 ] Lysosomes are sacs of enzymes within cells that digest large molecules and pass the fragments on to other parts of the cell for recycling.
This type of treatment is taken orally. [10] It does not induce an unwanted immune response, and a single type of small molecule could be used to treat many lysosomal storage diseases. [10] Substrate reduction therapy is FDA approved and there is at least one treatment available on the market. [10]
Gaucher's disease is the most common of the lysosomal storage diseases. [2] It is a form of sphingolipidosis (a subgroup of lysosomal storage diseases), as it involves dysfunctional metabolism of sphingolipids. [3] The disease is named after the French physician Philippe Gaucher, who originally described it in 1882. [4]
Specialty. Endocrinology. Neuronal ceroid lipofuscinosis is a family of at least eight genetically separate neurodegenerative lysosomal storage diseases that result from excessive accumulation of lipopigments (lipofuscin) in the body's tissues. [ 1 ] These lipopigments are made up of fats and proteins.
A lysosome (/ ˈlaɪsəˌsoʊm /) is a single membrane-bound organelle found in many animal cells. [ 1 ][ 2 ] They are spherical vesicles that contain hydrolytic enzymes that digest many kinds of biomolecules. A lysosome has a specific composition, of both its membrane proteins and its lumenal proteins.
Endocrinology. Glycogen storage disease type II(GSD-II), also called Pompe disease, and formerly known as GSD-IIa or Limb–girdle muscular dystrophy 2V, is an autosomal recessive metabolic disorder [ 1 ] which damages muscle and nerve cells throughout the body.
I-cell disease is an autosomal recessive disorder caused by a deficiency of GlcNAc phosphotransferase, which phosphorylates mannose residues to mannose-6-phosphate on N-linked glycoproteins in the Golgi apparatus within cells. Without mannose-6-phosphate to target them to the lysosomes, the enzymes are erroneously transported from the Golgi to ...
Cystinosis. Cystinosis is a lysosomal storage disease characterized by the abnormal accumulation of cystine, the oxidized dimer of the amino acid cysteine. [3] It is a genetic disorder that follows an autosomal recessive inheritance pattern. It is a rare autosomal recessive disorder resulting from accumulation of free cystine in lysosomes ...