Hepatic transcriptomics of squalene in male Apoe-deficient mice on Western diet
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PROVIDER: PRJNA606788 | ENA |
REPOSITORIES: ENA
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Project description:Background and Purpose: Squalene is the main hydrocarbon present in extra virgin olive oil and it has been reported to have anti-steatotic properties in different animal models. The aims of this study were to investigate its effects on liver transcriptomics in Male C57BL/6J Apoe-deficient mice. Experimental Approaches: Male C57BL/6J Apoe-deficient mice were fed a purified Western diet with or without squalene during 11 weeks and hepatic squalene content was assessed. Hepatic transcriptomic changes were studied and confirmed by RT-qPCR. Key Results: Squalene supplementation increased its hepatic content. The Cyp2b10 and Cyp2c55 gene expressions were significantly up-regulated by the squalene intake in all animal models, with independence of sex, sexual hormones, dietary fat content, genetic background and dose, and were strongly associated with antioxidant defense capacity and with lipid content and composition. Conclusions and Implications: hepatic squalene exerts its activity through overexpression of these cytochromes and their changes in virgin olive oil diets may be due to squalene.
2021-04-30 | GSE145343 | GEO
Project description:The hypothesis that the squalene of olive oil might influence hepatic gene expression in an apoE and sex-dependent ways was tested in mice. Gene expression was analyzed using DNA microarrays in male apoE-deficient mice that received 1 g/kg/day of squalene for 10 weeks.
2016-03-30 | GSE36932 | GEO
Project description:The hypothesis that the squalene of olive oil might influence hepatic gene expression in an apoE and sex-dependent ways was tested in mice. Gene expression was analyzed using DNA microarrays in male apoE-deficient mice that received 1 g/kg/day of squalene for 10 weeks. As initial screening of potential candidate genes involved in a differential response, only genes with remarkably modified expression (signal log2 ratio > 1.5 or < -1.5) were further considered
2016-03-30 | E-GEOD-36932 | biostudies-arrayexpress
Project description:Identification of novel pathways in the development of atherosclerosis. Here, we are looking at changes in gene expression that occur in the aorta with the development of atherosclerosis Analysis used RNA from thoracic aortas from chow fed ApoE knockout mice as control samples for comparison to the experimental samples from 8 week and 16 week ApoE knockout mice fed a western-type diet
2015-02-03 | E-GEOD-65494 | biostudies-arrayexpress
Project description:The deficiency in CCL17 decreased atherosclerotic plaque burden by facilitating Treg maintenance and survival. cDC-derived CCL17 plays a crucial role in the recruitment and migration of various T cell subsets, including a subpopulation of CD4+ T cells, regulatory T cells (Tregs). To evaluate whether CCL17-deficient cDCs harbor an unique expression profile. we FACS-sorted CD45+CD11c+CD3-CD19- cells from lymph nodes (LNs) of Apoe-/-Ccl17wt/e or Apoe-/-Ccl17e/e mice on chew diet (CD) and performed single cell RNA sequencing (scRNAseq). We also performed scRNAseq to detect the expression of some chemokine receptors in sorted CD45+CD19-MHC+ cells from aortic LNs of Apoe-/-Ccl17wt/e or Apoe-/-Ccl17e/e mice on 6-week western diet (WD).
2022-04-18 | GSE200862 | GEO
Project description:Background & Aims: The influences of the maternal diet during gestation has been suggested to be involved in the development of different aspects of the metabolic syndrome. In our mouse model we characterised the role of maternal western diet in the development of non-alcoholic fatty liver disease (NAFLD) in the offspring. Methods: Female mice were fed either a western (W) or low-fat control (L) semi-synthetic diet before and during gestation and lactation. At weaning, male offspring were assigned either the W or the L diet, generating four experimental groups: WW, WL, LW and LL offspring. Biochemical, histological and epigenetic indicators were investigated at 29 weeks of age. Results: Male offspring exposed to prenatal western style diet and to a post-weaning W diet (WW) showed hepatomegaly combined with increased hepatic cholesterol and triglycerides accumulation, compared to LW offspring. This was associated with up-regulation of de novo lipid synthesis and dysregulation of beta oxidation and lipid storage. Elevated hepatic transaminases and increased expression of Tnfa, Cd11, Mcp1 and Tgfb underpin the severity of liver injury. Histological analysis supported the presence of steatohepatitis in the WW offspring. In addition alterations in DNA methylation in key metabolic genes (Ppara, Insig, Fasn) were detected. Conclusion: Maternal dietary fat intake during critical developmental phases programs susceptibility to liver disease in mouse offspring. This was mediated by shifts in lipid metabolism and inflammatory response. Long lasting epigenetic changes may underlie this dysregulation 4 groups of 6 male mouse were analysed , 1 experimental and 1 biological outlier was excluded , so n=6,5,5,6 in the 4 groups (LL,LW,WL,WW)
2014-01-21 | E-GEOD-44901 | biostudies-arrayexpress
Project description:Purpose: The goal of this study was to determine squalene effect on hepatic transcriptome by comparing high-throughput data for tested group vs. control group in Wildtype New Zealand white rabbits. Method: Hepatic mRNA profile of two Wildtype New Zealand white rabbits groups fed over 4 weeks with 1% of sunflower oil and the second fed with purified 1% of sunflower oil and 0.5% of squalene was analysed by Transcriptome sequencing using DNBseq platform. Sequence reads that passed quality filters were mapped onto reference genome, followed by SNP & INDEL calling and Gene expression detection. Results: Squalene intake did not significantly influence single nucleotide polymorphisms. When alternative splicing events were tested, squalene administration had significant influence on splicing events, alternative 5' splicing, alternative 3' splicing Site and retained intron while no effect was found on skipped exons or mutually exclusive exons. Splicing patterns led to variety of differentially splicing genes and a variety of different isoforms from one gene. Differentially expressed genes were 18,485 in the squalene group and 18,286 in the control group. Conclusions: This study represents the first analysis of hepatic transcriptome in respond to squalene. Result data confirm that RNA-Sequencing is a sensitive and accurate tool that provides a framework for comparative investigations of known and novel DEGs.
2024-12-19 | GSE191236 | GEO
Project description:L.mucosae A1 modulated the gut microbiota in ApoE-/- mice with western diet
| PRJNA645512 | ENA
Project description:Background & Aims: The influences of the maternal diet during gestation has been suggested to be involved in the development of different aspects of the metabolic syndrome. In our mouse model we characterised the role of maternal western diet in the development of non-alcoholic fatty liver disease (NAFLD) in the offspring. Methods: Female mice were fed either a western (W) or low-fat control (L) semi-synthetic diet before and during gestation and lactation. At weaning, male offspring were assigned either the W or the L diet, generating four experimental groups: WW, WL, LW and LL offspring. Biochemical, histological and epigenetic indicators were investigated at 29 weeks of age. Results: Male offspring exposed to prenatal western style diet and to a post-weaning W diet (WW) showed hepatomegaly combined with increased hepatic cholesterol and triglycerides accumulation, compared to LW offspring. This was associated with up-regulation of de novo lipid synthesis and dysregulation of beta oxidation and lipid storage. Elevated hepatic transaminases and increased expression of Tnfa, Cd11, Mcp1 and Tgfb underpin the severity of liver injury. Histological analysis supported the presence of steatohepatitis in the WW offspring. In addition alterations in DNA methylation in key metabolic genes (Ppara, Insig, Fasn) were detected. Conclusion: Maternal dietary fat intake during critical developmental phases programs susceptibility to liver disease in mouse offspring. This was mediated by shifts in lipid metabolism and inflammatory response. Long lasting epigenetic changes may underlie this dysregulation
2014-01-21 | GSE44901 | GEO
Project description:Purpose: The goal of this study was to determine squalene effect on hepatic transcriptome by comparing high-throughput data for tested group vs. control group in male Large White x Landrace Large swine animals Method: Study the Hepatic mRNA profile of swine animals in response to a steatotic diet supplied with 0.5% squalene over a month by Transcriptome sequencing using DNBseq platform. Sequence reads that passed quality filters were mapped onto reference genome, followed by SNP & INDEL variants calling and Gene expression detection. Results: Squalene intake did not significantly influence single nucleotide polymorphisms. When alternative splicing events were tested, squalene administration had significant influence on splicing events including alternative 5' splicing, alternative 3' splicing , retained intron, skipped exons and mutually exclusive exons. Splicing patterns led to variety of differentially splicing genes and a variety of different isoforms from one gene. Differentially expressed genes were 18,659 in the squalene group and 18,602 in control group.
2023-08-30 | GSE214732 | GEO