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Also, glycogen storage disease type II (Pompe disease) is a defect in lysosomal metabolism as well, [6] although it is otherwise classified into E74.0 in ICD-10. Cystinosis is an lysosomal storage disease characterized by the abnormal accumulation of the amino acid cystine. [citation needed]
The mucopolysaccharidoses are part of the lysosomal storage disease family, a group of genetic disorders that result when the lysosome organelle in animal cells malfunctions. The lysosome can be thought of as the cell's recycling center because it processes unwanted material into other substances that the cell can utilize.
Pages in category "Lysosomal storage diseases" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. *
Sly syndrome, also called mucopolysaccharidosis type VII (MPS-VII), is an autosomal recessive lysosomal storage disease caused by a deficiency of the enzyme β-glucuronidase. This enzyme is responsible for breaking down large sugar molecules called glycosaminoglycans (AKA GAGs, or mucopolysaccharides). The inability to break down GAGs leads to ...
For example, in the lysosomal storage diseases, patients with a pseudodeficiency allele show greatly reduced enzyme activity, yet they remain clinically healthy. In medical genetics, a false positive result occurs in an enzyme assay test when test results are positive, but disease or morbidity is not present. One possible cause of false ...
If residual breakdown through other pathways is insufficient to prevent harmful accumulation, the molecule accumulates in the cell and eventually interferes with normal biological processes. Examples of lysosomal storage disorders include Gaucher's disease, Tay–Sachs disease, Sandhoff disease, and Sanfilippo syndrome.
Alpha-mannosidosis is a lysosomal storage disorder, [1] first described by Swedish physician Okerman in 1967. [2] In humans it is known to be caused by an autosomal recessive genetic mutation in the gene MAN2B1, located on chromosome 19, affecting the production of the enzyme alpha-D-mannosidase, resulting in its deficiency.
Inclusion-cell (I-cell) disease, also referred to as mucolipidosis II (ML II), [1] [2] is part of the lysosomal storage disease family and results from a defective phosphotransferase (an enzyme of the Golgi apparatus). This enzyme transfers phosphate to mannose residues on specific proteins.