Biological activities of 7-dehydrocholesterol-derived oxysterols: implications for Smith-Lemli-Opitz syndrome
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چکیده
منابع مشابه
Biological activities of 7-dehydrocholesterol-derived oxysterols: implications for Smith-Lemli-Opitz syndrome.
Smith-Lemli-Opitz syndrome (SLOS) is a metabolic and developmental disorder caused by mutations in the gene encoding the enzyme 7-dehydrocholesterol reductase (Dhcr7). This reductase catalyzes the last step in cholesterol biosynthesis, and levels of 7-dehydrocholesterol (7-DHC), the substrate for this enzyme, are elevated in SLOS patients as a result of this defect. Our group has previously sho...
متن کاملSmith-Lemli-Opitz syndrome
Mayeda K, Weiss L, Lindahl R, Dully M. Localization of the human lactate dehydrogenase B gene on the short arm of chromosome 12. Ain J Humn Genet 1974:26:59-64. 2 Kivlin JD, Fineman RM, Williams MS. Phenotype variation in the del(12p) syndrome. Am J Med Genet 1985;22:769-79. 3 Magenis E, Brown M G. Chamberlin J. et al. Resolution of breakpoints in a complex rearrangement by use of multiple stai...
متن کامل7-dehydrocholesterol efficiently supports Ret signaling in a mouse model of Smith-Opitz-Lemli syndrome
Smith-Lemli-Opitz syndrome (SLOS) is a rare disorder of cholesterol synthesis. Affected individuals exhibit growth failure, intellectual disability and a broad spectrum of developmental malformations. Among them, renal agenesis or hypoplasia, decreased innervation of the gut, and ptosis are consistent with impaired Ret signaling. Ret is a receptor tyrosine kinase that achieves full activity whe...
متن کامل[Smith Lemli-Opitz syndrome].
BACKGROUND Smith-Lemli-Opitz syndrome (SLOS) is an autosomic recessive metabolic affection. Children affected by SLOS exhibit a defect in cholesterol biosynthesis associated with a high concentration of cholesterol precursor 7 dehydrocholesterol (7 DHC) and its isomers, which is due to an enzymatic block at the level of delta-7-DHC reductase. SLOS has been subdivided into two types on the basis...
متن کامل7-Dehydrocholesterol down-regulates cholesterol biosynthesis in cultured Smith-Lemli-Opitz syndrome skin fibroblasts.
The Smith-Lemli-Opitz syndrome (SLOS) is a common birth defect-mental retardation syndrome caused by a defect in the enzyme that reduces 7-dehydrocholesterol to cholesterol. Because of this block, patients' plasma cholesterol levels are generally low while 7-dehydrocholesterol concentrations are markedly elevated. In addition, plasma total sterols are abnormally low and correlate negatively wit...
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ژورنال
عنوان ژورنال: Journal of Lipid Research
سال: 2010
ISSN: 0022-2275
DOI: 10.1194/jlr.m009365