30 January 2017 : Animal Research
Effects of Different Ratio of n-6/n-3 Polyunsaturated Fatty Acids on the PI3K/Akt Pathway in Rats with Reflux EsophagitisJia-Yuan Zhuang1B, Zhi-Yao Chen2C, Tao Zhang3D, Du-Peng Tang4E, Xiao-Yin Jiang1F, Ze-Hao Zhuang5AG*
Med Sci Monit 2017; 23:542-547
BACKGROUND: We designed this study to investigate the influence of different ratios of n-6/n-3 polyunsaturated fatty acid in the diet of reflux esophagitis (RE) rats’ and the effect on the PI3K/Akt pathway.
MATERIAL AND METHODS: RE rats were randomly divided into a sham group and modeling groups of different concentrations of n-6/n-3 polyunsaturated fatty acid (PUFA): 12:1 group, 10:1 group, 5:1 group, and 1:1 group. RT-PCR and Western-blot were used to detect the expression of PI3K, Akt, p-Akt, NF-κBp50, and NF-κBp65 proteins in esophageal tissue.
RESULTS: In the n-6/n-3 PUFAs groups the expression of PI3K, Akt, p-Akt, nf-κbp50, and NF-κBp65 mRNA decreased with the decrease in n-6/n-3 ratios in the diet. The lowest expression of each indicator occurred in the 1:1 n-6/n-3 group compared with other n-6/n-3 groups, the difference was statistically significant (p<0.05).
CONCLUSIONS: The inhibition of n-3 PUFAs in the development of esophageal inflammation in rats with RE was attributed to the function of PI3K/Akt-NF-κB signaling pathway.
Keywords: Rats, Inbred ACI
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