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Paper Information

Journal:   INTERNATIONAL JOURNAL OF PREVENTIVE MEDICINE   2014 , Volume 5 , Number 3; Page(s) 333 To 340.
 
Paper: 

EFFECTS OF EICOSAPENTAENOIC ACID SUPPLEMENTATION ON LIPID AND LIPOPROTEIN PROFILE IN HYPERTRIGLYCERIDEMIC SUBJECTS WITH DIFFERENT PROLIFERATOR-ACTIVATED RECEPTOR ALPHA GENOTYPES

 
 
Author(s):  PISHVA HAMIDEH*, MEHDIPOUR PARVIN, ESHRAGHIAN MOHAMMAD REZA, MAHBOOB SOLTAN ALI
 
* DEPARTMENT OF CELLULAR, MOLECULAR NUTRITION, SCHOOL OF NUTRITION SCIENCES AND DIETETIC, TEHRAN UNIVERSITY OF MEDICAL SCIENCES, TEHRAN, IRAN
 
Abstract: 

Background: We determined the blood lipid-lowering effects of eicosapentaenoic acid (EPA) on hypertriglyceridemic subjects with Leu 162/Val in exon 5 and G/C in intron7 polymorphism of peroxisome proliferator-activated receptor alpha (PPARa) genotypes that, to our knowledge, have not been previously studied.
Methods: A total of 170 hypertriglyceridemic subjects were enrolled and genotyped for Ala54Thr, Leu162Val, and intron7 polymorphism by the use of a polymerase chain reaction–restriction fragment length polymorphism method. After determination of their genotypes, the first 23 eligible subjects who were found as Ala54 carriers and the first 23 eligible Thr54 carriers were enrolled in the study and stratified for PPAR
a genotypes. Participants took 2 g of pure EPA daily for 8 weeks. Fasting blood lipid and lipoprotein profiles were determined and changes from baseline were measured.
Results: We observed significant difference between EPA supplementation and Leu162 and Val162, Interon 7 (GG and GC) carriers (P
<0.001). We did not observe significant associations between the PPARa L162V single nucleotide polymorphism and multiple lipid and lipoprotein measures. Although EPA consumption lowered lipid and lipoprotein concentrations in Leu162 and Val162 carriers and Interon 7 CC and GC carriers, these differences between the studied groups were not statistically significant.
Conclusions: EPA consumption has a lipid-lowering effect in hypertriglyceridemic subjects in both Leu162 and Val162 carriers. But there was no significant interaction between EPA supplementation and PPAR
a genotypes. Thus, genetic variation within the PPARa Leu162/Val cannot modulate the association of EPA intakes with lipid and lipoprotein profile. However, we must note that the sample size in this study was small.

 
Keyword(s): EICOSAPENTAENOIC ACID, HYPERTRIGLYCERIDEMIC, LIPID PROFILE, PEROXISOME PROLIFERATOR-ACTIVATED RECEPTOR ALPHA, POLYMORPHISM
 
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