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- W4289107575 abstract "Previous studies have suggested a protective role for Polyunsaturated Fatty Acids (PUFA) against cancer, cardiovascular, and other diseases. To provide new insights into the in vivo effects of PUFA on gene expression, the effects of dietary PUFA on DNMT3b and PPARα gene expression and global DNA methylation were investigated in selected rat tissues.Thirty sprague-dawley rats were allotted into 3 dietary groups of ten animals each, received experimental diets containing PUFAs every day by gavages for 12 weeks as follows: control group fed a normal diet and water; n-3 PUFAs group received 300 mg/kg/day n-3 PUFAs supplementation; mixed-PUFAs group received 300 mg/kg/day of a mixture of n-3, -6, -9 PUFAs supplementations. The expressions of DNMT3b and PPARα genes were quantitated using real-time RT-PCR. The genome-wide 5-methylcytosine contents in rat tissues were determined by ELISA method.The average expression of the DNMT3b mRNA was 50% lower in the colon and liver of rats fed the n-3- or mixed-PUFAs supplemented diet than control group (p=0.00). However, PPARα expression was significantly upregulated both in the colon and liver of PUFAs-supplemented rats (p<0.001). No significant difference was observed in the blood, colon, and liver DNA methylation levels between PUFAs-supplemented and control animals.The results indicate that dietary PUFAs could modulate the expressions of PPARα and DNMT3b genes in various rat tissues. The findings of this study provide additional insights into the in vivo mechanism of PUFA-mediated regulation of gene expression and could provide an opportunity to develop personalized diets for related disease control." @default.
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- W4289107575 date "2018-12-18" @default.
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- W4289107575 title "Effects of Dietary Polyunsaturated Fatty Acids on DNA Methylation and the Expression of DNMT3b and PPARα Genes in Rats." @default.
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