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描述
cholesta-5,24-dien-3β-ol-d6
检测方案
>99% (TLC)
形式
powder
包装
pkg of 1 × 1 mg (700040P-1mg)
制造商/商品名称
Avanti Polar Lipids
运输
dry ice
储存温度
−20°C
一般描述
Desmosterol constitutes 1% of brain sterol and is catabolized to cholesterol by the enzyme 3-hydroxysterol 24-reductase (DHCR24). It is an intermediate in the Bloch branch of the cholesterol biosynthesis pathway. Desmosterol-d6 is a deuterated form of desmosterol.
应用
Desmosterol-d6 has been used:
- as a deuterated standard in liquid chromatography multiple reaction monitoring (LC-MRM)
- as a deuterated standard in high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC-ESI-MS)
- for spiking brain tissue homogenate from Alzheimer′s disease (AD) for liquid chromatography -mass spectrometry (LC-MS) analysis
生化/生理作用
Desmosterol low levels in the hippocampus directly impacts progenitor cell differentiation into neurons. Desmosterol-d6 is used as a substitute to desmosterol in hepatitis C virus (HCV) based viral assays to rescue replication. Desmosterol being a C27 sterol intermediate is implicated in the Alzheimer′s disease (AD) pathogenesis.
包装
5 mL Amber Glass Screw Cap Vial (700040P-1mg)
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法规信息
美国出口管控1C298产品
Valerie A Villareal et al.
ACS chemical biology, 11(7), 1827-1833 (2016-04-30)
Hepatitis C virus (HCV) increases intracellular desmosterol without affecting the steady-state abundance of other sterols, and the antiviral activity of inhibitors of desmosterol synthesis is suppressed by the addition of exogenous desmosterol. These observations suggest a model in which desmosterol
Yoshiaki Sato et al.
Alzheimer's & dementia (Amsterdam, Netherlands), 1(1), 67-74 (2015-03-01)
We here examined whether plasma desmosterol-to-cholesterol ratio (DES/CHO) is decreased in patients with Alzheimer's disease (AD) and investigated the association between plasma DES/CHO and longitudinal cognitive decline. Plasma DES/CHO of AD patients and age-matched controls in a Japanese cross-sectional cohort
Thomas Wisniewski et al.
Journal of Alzheimer's disease : JAD, 33(3), 881-888 (2012-10-09)
Desmosterol is a C27 sterol intermediate in cholesterol synthesis generated during the metabolic pathway that transforms lanosterol into cholesterol. It has become of particular interest in the pathogenesis of Alzheimer's disease (AD) because of the report that the activity of
Jeffrey G McDonald et al.
Methods in enzymology, 432, 145-170 (2007-10-24)
We describe the development of a high performance liquid chromatography mass spectrometry (HPLC-MS) method that allows the identification and quantitation of sterols in mammalian cells and tissues. Bulk lipids are extracted from biological samples by a modified Bligh/Dyer procedure in
Priyadarshini Chakrabarti et al.
Metabolomics : Official journal of the Metabolomic Society, 15(10), 127-127 (2019-09-21)
Significant annual honey bee colony losses have been reported in the USA and across the world over the past years. Malnutrition is one among several causative factors for such declines. Optimal nutrition serves as the first line of defense against
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