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Pfeiffer syndrome is a rare genetic disorder, characterized by the premature fusion of certain bones of the skull (craniosynostosis), which affects the shape of the head and face. The syndrome includes abnormalities of the hands and feet, such as wide and deviated thumbs and big toes.
Niemann–Pick type C (NPC) (colloquially, "Childhood Alzheimer's " [1]) is a lysosomal storage disease associated with mutations in NPC1 and NPC2 genes. Niemann–Pick type C affects an estimated 1:150,000 people. [2] Approximately 50% of cases present before 10 years of age, but manifestations may first be recognized as late as the sixth decade.
Lafora disease is a rare, adult-onset and autosomal recessive [4] genetic disorder which results in myoclonus epilepsy and usually results in death several years after the onset of symptoms. The disease is characterized by the accumulation of inclusion bodies, known as Lafora bodies, within the cytoplasm of the cells in the heart, liver, muscle ...
Mitochondrial DNA depletion syndrome (MDS or MDDS), or Alper's disease, is any of a group of autosomal recessive disorders that cause a significant drop in mitochondrial DNA in affected tissues. Symptoms can be any combination of myopathic, hepatopathic, or encephalomyopathic. [1] These syndromes affect tissue in the muscle, liver, or both the ...
Sanfilippo syndrome, also known as mucopolysaccharidosis type III (MPS III), is a rare lifelong genetic disease that mainly affects the brain and spinal cord.It is caused by a problem with how the body breaks down certain large sugar molecules called glycosaminoglycans (also known as GAGs or mucopolysaccharides).
Leber congenital amaurosis. Leber congenital amaurosis (LCA) is a rare inherited eye disease that appears at birth or in the first few months of life. [2] It affects about 1 in 40,000 newborns. [1] LCA was first described by Theodor Leber in the 19th century. [3][4] It should not be confused with Leber's hereditary optic neuropathy, which is a ...
Neuropathy, ataxia, and retinitis pigmentosa, also known as NARP syndrome, is a rare disease with mitochondrial inheritance that causes a variety of signs and symptoms chiefly affecting the nervous system [1] Beginning in childhood or early adulthood, most people with NARP experience numbness, tingling, or pain in the arms and legs (sensory neuropathy); muscle weakness; and problems with ...
The classic characterization of the group of neurodegenerative, lysosomal storage disorders called the neuronal ceroid lipofuscinoses (NCLs) is through the progressive, permanent loss of motor and psychological ability with a severe intracellular accumulation of lipofuscins, [2] [3] with the United States and Northern European populations having slightly higher frequency with an occurrence of ...