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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Early exposure to distinct sources of lipids affects differently the development and hepatic inflammatory profiles of 21-day-old rat offspring

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Author(s):
Mennitti, Lais Vales [1] ; Oyama, Lila Missae [2] ; Santamarina, Aline Boveto [1] ; da Penha Oller do Nascimento, Claudia Maria [2] ; Pisani, Luciana Pellegrini [3]
Total Authors: 5
Affiliation:
[1] Fed Univ Sao Paulo UNIFESP, PhD Program Interdisciplinar Hlth Sci, Santos, SP - Brazil
[2] Fed Univ Sao Paulo UNIFESP, Discipline Nutr Physiol, Dept Physiol, Sao Paulo, SP - Brazil
[3] Fed Univ Sao Paulo UNIFESP, Inst Hlth & Soc, Dept Biosci, Santos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF INFLAMMATION RESEARCH; v. 11, p. 11-23, 2018.
Web of Science Citations: 1
Abstract

Introduction: Maternal diet composition of fatty acids during pregnancy and lactation seems to modify the fetal programming, epigenetic pattern and offspring phenotype. Aim: Herein, we investigated the effects of maternal consumption of normal-fat diets with distinct lipid sources during pregnancy and lactation on the somatic development and proinflammatory status of 21-day-old rat offspring. Materials and Methods: On the first day of pregnancy, female Wistar rats were divided into four groups as follows: soybean oil (M-SO), lard (M-L), hydrogenated vegetable fat (M-HVF) and fish oil (M-FO). Diets were maintained during pregnancy and lactation. Male offspring constituted the SO, L, HVF and FO groups. Pups were weighed and measured weekly. Lipopolysaccharide serum concentration was determined. Tumor necrosis factor alpha, interleukin (IL)-6 and IL-10 in the liver were evaluated by enzyme-linked immunosorbent assay. Liver gene expressions were determined by real-time polymerase chain reaction. Protein expressions in the liver were analyzed by Western blotting. Results: We observed an increase in body weight and adiposity in L and HVF groups. Moreover, HVF group showed an increase in the toll-like receptor 4 mRNA levels, IL10R alpha and phosphorylated form of I kappa B kinase (IKK; p-IKK alpha+beta) protein expression. The FO group presented a decrease in body weight, relative weight of retroperitoneal adipose tissue, ADIPOR2 gene expression, lipopolysaccharide and p-IKK alpha+beta and phosphorylated form of nuclear transcription factor kappa B (NF kappa B) p50 (p-NF kappa B p50) protein expression. Conclusion: Summarily, whereas maternal intake of normal-fat diets based on L and HVF appear to affect the somatic development negatively, only early exposure to HVF impairs the pups' proinflammatory status. In contrast, maternal diets based on FO during pregnancy and lactation have been more beneficial to the adiposity and toll-like receptor 4 signaling pathway of the 21-day-old rat offspring, particularly when compared to L or HVF diets. (AU)

FAPESP's process: 14/10683-0 - Effect of different fatty acids maternal intake during pregnancy and lactation on epigenetic modifications and pro-inflammatory status of the fetus and 21-D-OLD offspring
Grantee:Laís Vales Mennitti
Support Opportunities: Scholarships in Brazil - Doctorate