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Canavan disease, or Canavan–Van Bogaert–Bertrand disease, is a rare and fatal autosomal recessive [1] degenerative disease that causes progressive damage to nerve cells and loss of white matter in the brain. [2] It is one of the most common degenerative cerebral diseases of infancy. [3]
The first case of spongy degeneration of the CNS was reported in 1928 by Globus and Strauss, [42] who designated the case as Schilder's disease, a term for diffuse myelinoclastic sclerosis. [43] [44] [45] In 1931, Canavan reported a case where the megalencephaly of brain degeneration is different from that caused by a tumour. [46]
Canavan disease is a less-studied type of leukodystrophy that, like MLD and Krabbe disease, is also inherited in an autosomal recessive pattern. It is due to a mutation in the ASPA gene that encodes aspartoacylase , an enzyme needed to metabolize N-acetyl-L-aspartate (NAA).
Canavan disease is a rare autosomal recessive disorder that causes spongy degeneration of the white matter in the brain and severe psychomotor retardation, usually leading to death at a young age. [ 12 ] [ 20 ] The loss of aspartoacylase activity leads to the buildup of N-acetyl-L-aspartate in the brain and an increase in urine concentration by ...
Aminoacylase 2 deficiency - also known as Canavan's disease - is another rare disease caused by a mutation in the ASPA gene (on chromosome 17) that leads to a deficiency in the enzyme aminoacylase 2. Aminoacylase 2 is known for the fact that it can hydrolyze N-acetylaspartate while aminoacylase 1 cannot. [17]
Glutaric aciduria type 1 (GA1): An autosomal recessive disease, GA1 is due to glutaryl-coenzyme A dehydrogenase deficiency. Abnormalities are seen in the basal ganglia and dentate nucleus. [12] Canavan's disease: Canavan's disease is a white matter disease due to aspartoacylase deficiency. The dentate nucleus is not affected until late in ...
In the later stages of the disease, patients have severe mental impairment and lose the ability to move or speak. [ 15 ] Early neuropathological reports on human prion diseases suffered from a confusion of nomenclature, in which the significance of the diagnostic feature of spongiform change was occasionally overlooked.
The meaning of this fact is controversial. For some investigation teams it means that MS is a heterogeneous disease. Others maintain that the shape of the scars can change with time from one type to other and this could be a marker of the disease evolution. [63] Anyway, the heterogeneity could be true only for the early stage of the disease. [64]