Project description:We fed mice fot 6 weeks with either a high-fat diet or standard chow with sucrose supplemented drinking water We used microarrays to detail the global changes of gene expression induced by the two dietary regimes in liver, adipose and muscle tissues.
Project description:The impact of high fat diet on secreted milk small RNA transcriptome was studied by isolating total RNA from milk fat fraction collected on lactation day 10 from control diet fed (C; n=5; 10% fat; 7% sucrose; Research Diets #D12450J, Brunswick, NJ) and high fat diet fed (HF; n=4; Research Diets #D12492, 60% of total kcal energy is fat and match 7% of total kcal is sucrose; Brunswick, NJ) mice.
Project description:The impact of high fat diet on secreted milk small RNA transcriptome was studied by isolating total RNA from milk fat fraction collected on lactation day 10 from control diet fed (C; n=5; 10% fat; 7% sucrose; Research Diets #D12450J, Brunswick, NJ) and high fat diet fed (HF; n=4; Research Diets #D12492, 60% of total kcal energy is fat and match 7% of total kcal is sucrose; Brunswick, NJ) mice.
Project description:We isolated plasma exosomes from mice fed for 6 weeks with either standard chow, a high-fat diet or standard chow with sucrose supplemented drinking water. We injected these exosomes into control mice fed standard chow and sacrificed them 72 h after the injection for tissue analysis We used microarrays to detail the global changes of gene expression induced by the injected exosomes in liver, adipose and muscle tissues
Project description:To determine the effect of consumption of a quercetin-rich diet on obesity and dysregulated hepatic gene expression, C56BL/6J mice were fed for 20 weeks on control or a Western diet high in fat, cholesterol and sucrose, both with or without 0.05% quercetin. Chronic dietary intake of quercetin reduced body weight gain and visceral and liver fat accumulation, and improved hyperglyceamia, hyperinsulinaemia, dyslipidaemia in mice fed a Western-style diet. Feeding a Western-style diet altered expression of genes related to inflammatory responses, lipid metabolism and oxidative phosphorylation in C57BL/6J mice after 20 weeks. The results from exhaustive gene expression analysis showed that quercetin minimally influenced hepatic gene expression in mice fed the Western diet. The gene screening results (GSEA) were consistent with the notion that it did improve mitochondrial function to some extent. Quantitative RT-PCR analysis indicated that quercetin did influence important regulators of fat accumulation and metabolic disorders. Our results suggest that quercetin reduces fat accumulation presumably through decreasing oxidative stress and increasing PPARα expression, and the following improvement of gene expression related to steatosis in the liver. C56BL/6J mice were fed for 20 weeks on AIN93G (con) or a Western diet high in fat, cholesterol and sucrose, both with or without 0.05% quercetin for 20 weeks.
Project description:The C57BL/6J mouse model develops obesity and pre-diabetes when fed a high-fat diet. In this experiment, DNA methylation was assessed globally at specific CpG sites in liver tissue from mice receiving high-fat diet (45E% from fat) for 13 weeks (Control) or high-fat diet supplemented with 20% (w/w) of freeze-dried lingonberries (n=4). Our findings show that lingonberries prevent development of high-fat induced obesity, hepatic steatosis and low-grade inflammation, and the DNA was hypermethylated in mice receiving lingonberries compared to control. Genome wide hepatic DNA methylation comparison between mice fed high-fat diet with or without a lingonberry supplement (n=4/group).
Project description:To assess the effect of steatosis and oxidative stress on progression of liver fibrosis, we have employed whole genome microarray expression profiling as a discovery platform to identify genes that are related with oxidative stress- and steatosis-induced hepatic fibrogenesis. When wild type mice were fed high-fat/high-sucrose diet for 24 weeks, expression of 69 genes was changed more than 10-fold compared with wild type animals fed normal diet, 11 of which were categorized to lipid metabolic process. Moreover, expression of 208 genes showed more than 5-fold changes in Tet-mev-1 mice fed high-fat/high-sucrose diet compared with the same transgenic animals fed normal diet, and gene ontology analyses indicated significant changes in chemokine activity and chemokine receptor binding as well as defense and immune responses. oxidative stress and high fat high calorie induced gene expression in wild type or Tet-mev-1 mouse liver tissue. wild type and Tet-mev-1 mice were fed either normal diet or high fat high sucrose diet for 4 months, and have been given doxycycline-containing water from embryo. Each group were perfomed by duplicate.
Project description:To dentify cecal and liver gene expression changes associated with altered microbiota profiles and reduced weight gain in mice consuming a high-fat diet supplemented with the inulin, or with inulin esterified with propionate and butyrate.
