0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

The influence of dietary conjugated linoleic acid isomers and Se on the fatty acid profile in rat blood plasma and selected tissues

I. Wąsowska 1,  
M. Czauderna 1  ,  
J. Kowalczyk 1,  
 
1
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
J. Anim. Feed Sci. 2006;15(3):471–489
Publish date: 2006-07-05
KEYWORDS
ABSTRACT
The objective of this study was to determine the conjugated linoleic acid (CLA) isomer composition of blood plasma and other organ tissues of Wistar rats fed a diet enriched with 1 or 2% CLA isomer(s) and 2 ppm Se as sodium selenate for 4 weeks. The dietary supplement of CLA isomers significantly elevated the concentration of CLA isomers and other fatty acids containing conjugated double bonds in plasma, spleen, pancreas, heart, and kidney tissues. cis9,trans11CLA was preferentially accumulated in plasma and organ tissues of rats fed the CLA isomer mixture with or without Se, while the percentage contribution of trans10,cis12CLA in the tissues of organs tended to be lower than its percentage in the administered CLA isomer mixture. Dietary CLA isomer(s) increased the Ca content of whole blood, while the diet with the CLA isomer(s) and Se increased the concentration of Mg and Se in spleen tissue. The experimental diets did not produce any substantial changes in the Fe or Zn concentrations in blood or spleen tissue. The diet enriched in trans10,cis12CLA and Se significantly increased spleen, pancreas and heart weights. Regardless of the presence of Se, the diet enriched in CLA isomer(s) stimulated the accumulation of polyunsaturated fatty acids in blood plasma, and in pancreas, heart, and kidney tissues. The diets enriched in the CLA isomer(s) usually resulted in a decrease of the monounsaturated fatty acid concentration and Δ9-desaturase capacity in plasma, spleen, pancreas, and kidney tissues, but not in noticeably decreased concentrations in heart and brain tissues. The presence of both Se and the CLA isomer(s) produced less consistent changes in the capacity of Δ9 desaturase and monounsaturated fatty acid concentrations compared with the effect of the diet with the CLA isomer(s) only.
CORRESPONDING AUTHOR
M. Czauderna   
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
 
CITATIONS (3):
1. Docosahexaenoic Acid and Eicosapentaenoic Acid Did not Alter trans-10,cis-12 Conjugated Linoleic Acid Incorporation into Mice Brain and Eye Lipids
Madhuri Vemuri, Yuriko Adkins, Bruce E. Mackey, Darshan S. Kelley
Lipids
2. Effect of dietary conjugated linoleic acid and selenized yeast on the concentration of fatty acids and minerals in rats
Marian Czauderna, Jan Kowalczyk, Katarzyna Korniluk
Archives of Animal Nutrition
3. Dietary carnosic acid, selenized yeast, selenate and fish oil affected the concentration of fatty acids, tocopherols, cholesterol and aldehydes in the brains of lambs
Agnieszka J. Rozbicka-Wieczorek, Katarzyna A. Krajewska-Bienias, Marian Czauderna
Archives Animal Breeding
ISSN:1230-1388