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Relationship between the degree of unsaturation of dietary fatty acids and adipose tissue fatty acids assessed by natural‐ abundance 13 c magnetic resonance spectroscopy in man
Author(s) -
Beckmann N.,
Brocard J.J.,
Keller U.,
Seelig J.
Publication year - 1992
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910270110
Subject(s) - degree of unsaturation , adipose tissue , polyunsaturated fatty acid , chemistry , nuclear magnetic resonance spectroscopy , fatty acid , medicine , food science , endocrinology , biochemistry , biology , organic chemistry
Natural‐abundance 13 C magnetic resonance spectroscopy was used for determining noninvasively the relative concentration of mono‐ and polyunsaturated fatty acids of adipose tissue in two groups of volunteers. The first consisted of subjects who had followed a fat‐reduced diet for at least half a year before the 13 C measurements. The second were control subjects who were on a usual high‐fat diet. The ratio of unsaturated to total fatty acids in adipose tissue determined by 13 C MRS correlated significantly with the same ratio in fat of the diet composition estimated by a dietician according to food records. The results indicate that 13 C MRS is capable of assessing the degree of unsaturation of dietary fatty acids consumed during the preceding months.