منابع مشابه
Quantitative Isolation of Sterols.
I n 1909, Windaus published the important discovery that cholesterol, sitosterol, and P-cholestanol form sparingly soluble addition compounds with digitonin, whereas a-cholestanol and cholesterol esters do not (1). Ever since, this reaction has been a major tool of steroid chemists; it has been used in many methods for cholesterol determination and in many separations of steroids with the beta ...
متن کاملElectrophoresis of Sterols
The electrophoretic behavior of powdered ergosterol crystals is identical with that previously found for cholesterol within the limits of experimental error. Evidence for an adsorption hypothesis is presented to explain this phenomenon.
متن کاملPlant Sterols and Sterolins Monograph
Alternative Medicine Review ◆ Volume 6, Number 2 ◆ 2001 Page 203 Plant Sterols and Sterolins Introduction Sterols and sterolins, also known as phytosterols, are fats present in all plants, including fruits and vegetables. Although they are chemically similar to the animal fat, cholesterol, they have been shown to exert significant unique biochemical effects in both animals and humans. Because t...
متن کاملCholesterol-lowering Sterols and Stanols
Unfortunately, whilst the in vitro evidence for their beneficial effects on lipid profile is convincing, this does not translate with any compelling degree into prevention of primary cardiovascular events. Except in borderline normo/hypercholesterolaemia, prescription drugs (eg, statins) are more effective than stanol/sterol esters for lowering LDL cholesterol. The National Institute for Health...
متن کاملProtein Sensors for Membrane Sterols
Cholesterol is an essential component of animal cell membranes, and its concentration is tightly controlled by a feedback system that operates at transcriptional and posttranscriptional levels. Here, we discuss recent advances that explain how cells employ an ensemble of membrane-embedded proteins to monitor sterol concentrations and adjust sterol synthesis and uptake.
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1966
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)99808-x