Slow virus
A virus that has a long incubation period before the onset of a very gradual progressive disease. Typically, the diseases caused by slow viruses affect the central nervous system and are associated with a variety of nervous system symptoms while having a characteristically protracted, progressive clinical course.
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- Slow-wave sleep
Stage 3 and 4 non-rapid eye movement (non-REM) sleep. Slow-wave sleep is characterized by brain wave patterns (electroencephalogram or EEG) with a frequency of less than 4 Hz and peak-to-peak amplitude of 75 microV.
- SLS (Sjogren-Larsson syndrome)
NAD+ oxidoreductase deficiency (FAO deficiency); fatty aldehyde dehydrogenase deficiency (FALDH deficiency); and fatty aldehyde dehydrogenase 10 deficiency (FALDH10 deficiency).
- Genetic Disease: Get the
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- Sludge, biliary
A mixture of microscopic particulate matter in bile that occurs when particles of material precipitate from bile. (Bile is the fluid that is made by the liver. It is stored in the gallbladder until after a meal when it passes out of the gallbladder and through the common bile duct into the intestine to help […]
- Sly syndrome
A disorder of mucopolysaccharide metabolism characterized by short stature, coarsening of the facial features, clouding of the cornea, striking enlargement of the liver and spleen, skeletal abnormalities, and intellectual deterioration resulting in moderately severe mental retardation. Sly syndrome is due to deficiency of the enzyme beta-glucuronidase which causes the damaging accumulation of mucopolysaccharides in the […]