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Key Documents

SML1648

Sigma-Aldrich

24(S)-Hydroxycholesterol

≥98% (HPLC)

Synonyme(s) :

24S-Hydroxycholesterol, 5-Cholesten-3β,24(S)-diol, Cerebrosterin, Cerebrosterol, Cholest-5-ene-3β,24-diol

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About This Item

Formule empirique (notation de Hill):
C27H46O2
Numéro CAS:
474-73-7
Poids moléculaire :
402.65
Code UNSPSC :
12352211
Nomenclature NACRES :
NA.77

Niveau de qualité

100

Pureté

≥98% (HPLC)

Forme

powder

Activité optique

[α]/D -45 to -52°, c = 1 in chloroform-d

Conditions de stockage

desiccated

Couleur

white to beige

Solubilité

DMSO: 3 mg/mL, clear (warmed)

Température de stockage

−20°C

InChI

1S/C27H46O2/c1-17(2)25(29)11-6-18(3)22-9-10-23-21-8-7-19-16-20(28)12-14-26(19,4)24(21)13-15-27(22,23)5/h7,17-18,20-25,28-29H,6,8-16H2,1-5H3/t18-,20+,21+,22-,23+,24+,25+,26+,27-/m1/s1

Clé InChI

IOWMKBFJCNLRTC-XWXSNNQWSA-N

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Actions biochimiques/physiologiques

24(S)-Hydroxycholesterol is the major brain metabolite formed from cholesterol in the brain and is important for brain cholesterol homeostasis in addition to being an an endogenous agonist of the nuclear liver X receptors (LXRs). Impairment of brain cholesterol metabolism has been associated with several neurodegenerative diseases, including multiple sclerosis, Alzheimer′s, and Huntington diseases. The exact role role of 24(S)-Hydroxycholesterol is unclear, and it may have differing effects depending on concentration. Low concentrations can protect neuronal cells against oxidative stress, while high concentrations induce necroptosis-like neuronal cell death. 24(S)-Hydroxycholesterol has also been found to be a potent allosteric modulator of N-methyl-d-aspartate receptors, potentiating NMDAR-mediated EPSCs in rat hippocampal neurons with an EC50 of 1.2 μM.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Steven M Paul et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 33(44), 17290-17300 (2013-11-01)
N-methyl-D-aspartate receptors (NMDARs) are glutamate-gated ion channels that are critical to the regulation of excitatory synaptic function in the CNS. NMDARs govern experience-dependent synaptic plasticity and have been implicated in the pathophysiology of various neuropsychiatric disorders including the cognitive deficits
Genta Kakiyama et al.
The Journal of steroid biochemistry and molecular biology, 189, 36-47 (2019-02-03)
The aim of this paper was to more completely study the mitochondrial CYP27A1 initiated acidic pathway of cholesterol metabolism. The mitochondrial CYP27A1 initiated pathway of cholesterol metabolism (acidic pathway) is known to synthesize two well-described vital regulators of cholesterol/lipid homeostasis
Min-Yu Sun et al.
The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry, 22(2), 132-144 (2015-01-30)
The major cholesterol metabolite in brain, 24(S)-hydroxycholesterol (24S-HC), serves as a vehicle for cholesterol removal. Its effects on neuronal function, however, have only recently begun to be investigated. Here, we review that nascent work. Our own studies have demonstrated that
Elza Fonseca et al.
Genome biology and evolution, 9(1), 222-230 (2017-01-07)
Nuclear receptors (NRs) regulate numerous aspects of the endocrine system. They mediate endogenous and exogenous cues, ensuring a homeostatic control of development and metabolism. Gene duplication, loss and mutation have shaped the repertoire and function of NRs in metazoans. Here
Xiaofei Wei et al.
Neuropharmacology, 148, 11-20 (2018-12-31)
24S-hydroxycholesterol (24HC) is the major metabolic breakdown product of cholesterol in the brain. Among its other effects on neurons, 24HC modulates N-methyl-d-aspartate (NMDA or GluN) receptors, but our understanding of this mechanism is poor. We used whole-cell patch clamp recordings
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