Journal
ANALYTICA CHIMICA ACTA
Volume 586, Issue 1-2, Pages 49-56Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2006.07.031
Keywords
cholesterol; phytosterols; phytostanols; anabolic agents; designer drugs
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Cholesterol is a well-known component in fats of animal origin and it also is the precursor of natural hormones. Phytosterols appear in plants and only differ slightly in structure from cholesterol. An important difference however is the low absorption in the gut of phytosterols and their saturated derivatives, the phytostanols. As a result, there is time for all kind of reactions in faecal material inside and outside of the gut. Determination of the abuse of natural hormones may be based on gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS). Abuse of natural hormones changes the C-13/C-12 ratio of some metabolites during a relatively long time. The formation of (natural) hormones in the gut may interfere with this method. Designer drugs are mainly known from sports doping. In animal fattening, designer drugs may be used as well. Small changes in the structure of (natural) hormones may lead to a new group of substances asking for new strategies for their detection and the constatation of their abuse. (c) 2006 Elsevier B.V. All rights reserved.
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