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. 1991;10(1):13-21.
doi: 10.1016/0891-5849(91)90016-v.

On the identification of a conjugated diene component of duodenal bile as 9Z,11E-octadecadienoic acid

G N Smith  1 , M Taj, J M Braganza
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On the identification of a conjugated diene component of duodenal bile as 9Z,11E-octadecadienoic acid

G N Smith et al. Free Radic Biol Med. 1991.

Abstract

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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