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    CAS No. 474-60-2 Price
    Catalog No.CFN93818Purity>=98%
    Molecular Weight402.70Type of CompoundSteroids
    FormulaC28H50OPhysical DescriptionPowder
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    Description: Campestanol, which shares the same basic structure and intestinal absorption pathway with cholesterol, does not accumulate when fed, and may be incorporated into the diet to block cholesterol absorption.
    In vivo:
    J Lipid Res. 2000 Nov;41(11):1883-9.
    Hyperabsorption and retention of campestanol in a sitosterolemic homozygote: comparison with her mother and three control subjects.[Pubmed: 11060358]

    We measured the percent absorption, turnover, and distribution of Campestanol (24-methyl-5alpha-cholestan-3beta-ol) in a sitosterolemic homozygote, her obligate heterozygous mother, and three healthy human control subjects. For reasons relating to sterol hyperabsorption, the homozygote consumed a diet low in plant sterols that contained Campestanol at about 2 mg/day. The heterozygote and three control subjects were fed a diet supplemented with a spread that contained Campestanol at 540 mg/day and sitostanol (24-ethyl-5alpha-cholestan-3beta-ol) at 1.9 g/day as fatty acid esters. Plasma Campestanol concentrations determined by capillary gas-liquid chromatography were 0.72 +/- 0.03 mg/dl in the homozygote, 0.09 +/- 0.04 mg/dl in the heterozygote, and 0.05 +/- 0.03 mg/dl for the control mean. After simultaneous pulse labeling with [3alpha-(3)H]Campestanol intravenously and [23-(14)C]Campestanol orally, the maximum percent absorption measured by the plasma dual-isotope ratio method as a single time point was 80% in the homozygote, 14.3% in the heterozygote, and 5.5 +/- 4.3% as the mean for three control subjects. Turnover (pool size) values estimated by mathematical analysis of the specific activity versus time [3alpha-(3)H]Campestanol decay curves were as follows: 261 mg in the homozygote, 27.3 mg in the heterozygote, and 12.8 +/- 7.6 mg in the three control subjects (homogygote vs. controls, P < 0.001). The calculated production rate (mg/24 h) equivalent to actual absorption in the presence of dietary sterols and stanols was 0.67 mg/day or 31% of intake in the homozygote, 2.1 mg/day or 0.3% of intake in the heterozygote, and 0.7 +/- 0.3 mg/day or 0.1% of intake in the three control subjects. However, the excretion constant from pool A (K(A)) was prolonged markedly in the homozygote, but was 100 times more rapid in the heterozygote and three control subjects.
    Thus, Campestanol, like other noncholesterol sterols, is hyperabsorbed and retained in sitosterolemic homozygotes. However, Campestanol absorption was only slightly increased in the sitosterolemic heterozygote and removal was as rapid as in control subjects.
    Lipids. 2005 Sep;40(9):919-23.
    Dietary sitostanol and campestanol: accumulation in the blood of humans with sitosterolemia and xanthomatosis and in rat tissues.[Pubmed: 16331855]
    Dietary sitostanol has a hypocholesterolemic effect because it decreases the absorption of cholesterol. However, its effects on the sitostanol concentrations in the blood and tissues are relatively unknown, especially in patients with sitosterolemia and xanthomatosis. These patients hyperabsorb all sterols and fail to excrete ingested sitosterol and other plant sterols as normal people do. The goal of the present study was to examine the absorbability of dietary sitostanol in humans and animals and its potential long-term effect.
    Two patients with sitosterolemia were fed the margarine Benecol (McNeill Nutritionals, Ft. Washington, PA), which is enriched in sitostanol and Campestanol, for 7-18 wk. Their plasma cholesterol levels decreased from 180 to 167 mg/dL and 153 to 113 mg/dL, respectively. Campesterol and sitosterol also decreased. However, their plasma sitostanol levels increased from 1.6 to 10.1 mg/dL and from 2.8 to 7.9 mg/dL, respectively. Plasma Campestanol also increased. After Benecol withdrawal, the decline in plasma of both sitostanol and Campestanol was very sluggish. In an animal study, two groups of rats were fed high-cholesterol diets with and without sitostanol for 4 wk. As expected, plasma and liver cholesterol levels decreased 18 and 53%, respectively. The sitostanol in plasma increased fourfold, and sitostanol increased threefold in skeletal muscle and twofold in heart muscle. Campestanol also increased significantly in both plasma and tissues.
    Our data indicate that dietary sitostanol and Campestanol are absorbed by patients with sitosterolemia and xanthomatosis and also by rats. The absorbed plant stanols were deposited in rat tissues. Once absorbed by sitosterolemic patients, the prolonged retention of sitostanol and Campestanol in plasma might increase their atherogenic potential.
    Campestanol Description
    Source: The seeds of Brassica campestris
    Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
    Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

    After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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    Calculate Dilution Ratios(Only for Reference)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 2.4832 mL 12.4162 mL 24.8324 mL 49.6648 mL 62.081 mL
    5 mM 0.4966 mL 2.4832 mL 4.9665 mL 9.933 mL 12.4162 mL
    10 mM 0.2483 mL 1.2416 mL 2.4832 mL 4.9665 mL 6.2081 mL
    50 mM 0.0497 mL 0.2483 mL 0.4966 mL 0.9933 mL 1.2416 mL
    100 mM 0.0248 mL 0.1242 mL 0.2483 mL 0.4966 mL 0.6208 mL
    * Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
    Animal Research:
    Metabolism. 1999 Mar;48(3):363-8.
    Campestanol (24-methyl-5alpha-cholestan-3beta-ol) absorption and distribution in New Zealand White rabbits: effect of dietary sitostanol.[Pubmed: 10094114]
    Campestanol (24-methyl-5alpha-cholestan-3beta-ol) is a naturally occurring plant stanol, structurally similar to cholesterol (5-cholesten-3beta-ol) and widely distributed in vegetable oils consumed in human diets.
    We measured the absorption and turnover of Campestanol by the plasma dual-isotope ratio method and mathematical analysis of specific activity versus time decay curves after simultaneous oral and intravenous pulse-labeling with [3alpha-3H]- and [23-14C]-labeled Campestanol, respectively, in New Zealand White (NZW) rabbits: six fed chow and six fed chow with 125 mg/d Campestanol and 175 mg/d sitostanol (24-ethyl-5alpha-cholestan-3beta-ol). Plasma concentrations increased insignificantly from 0.08+/-0.01 to 0.09+/-0.01 mg/dL with dietary stanols. The percent Campestanol absorption measured by the plasma dual-isotope ratio method after the rabbits were fasted for 6 hours yielded the percent absorption in the absence of competing intestinal sterols and stanols and declined insignificantly from 11.6%+/-3.5% in controls to 8.1%+/-3.7% in the treated rabbit groups. In contrast, the turnover, which measured actual absorption averaged over 24 hours, increased from 0.12+/-0.05 to 0.37+/-0.05 mg/d (P < .05) with Campestanol and sitostanol added to the diet. However, the actual percent absorption declined from 3% to 0.3% of dietary intake with the Campestanol and sitostanol-enriched diet. Campestanol pool sizes, although remaining small, increased slightly from 1.1+/-0.4 to 2.5+/-1.5 mg. The removal constant (KA) from pool A (MA) did not change significantly with added dietary Campestanol and sitostanol (KA= -0.040+/-0.005 v -0.037+/-0.007 d(-1)). The results demonstrate small Campestanol plasma concentrations and body pools even when the rabbits consumed substantial amounts because (1) intestinal absorption was limited and (2) was further reduced by competing dietary sitostanol, and (3) Campestanol was removed rapidly from the body.
    Thus, Campestanol, which shares the same basic structure and intestinal absorption pathway with cholesterol, does not accumulate when fed, and may be incorporated into the diet to block cholesterol absorption.