pubmed:abstractText |
The lipid free radical marker, termed diene conjugation, in secretin-stimulated human bile obtained from the duodenum, was shown by high performance liquid chromatography and capillary gas chromatography-mass spectrometry, to be due mainly to 9Z,11E-octadecadienoic acid. The lack of evidence for possible conjugated diene isomers argues for an enzymatic origin of this product rather than being due to a random free radical mechanism, as is usually assumed.
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