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Multi-tissue expression profiling of TALLYHO/Jng and C57BL/6J Mice under high-fat and chow diets

ABSTRACT: Multi-tissue expression profiling of TALLYHO/Jng and C57BL/6J Mice under high-fat and chow diets

PROVIDER: PRJNA979191 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24820700_1.fastq.gz	Fastqsanger.gz
	SRR24820700_2.fastq.gz	Fastqsanger.gz
	SRR24820800_1.fastq.gz	Fastqsanger.gz
	SRR24820800_2.fastq.gz	Fastqsanger.gz
	SRR24820900_1.fastq.gz	Fastqsanger.gz

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Multi-tissue expression profiling of TALLYHO/Jng and C57BL/6J Mice under high-fat and chow diets

Project description:In order to identify gene expression patterns that vary with diet, genetics, and their interaction, we performed expression profiling by RNA-Seq across four different tissues (liver, gonadal fat, soleus muscle, and pancreas) of TALLYHO/Jng (TH) and C57BL/6J (B6) male (M) and female (F) mice, fed either a chow or high fat (HF) diet at 5 weeks and 20 weeks of age.

2023-11-30 | GSE234011 | GEO

Effect of high-fat and chow diets on satellite cell transcriptome

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Differential expression of genes in pancreatic islet of C57Bl/6J on high fat diet

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Liver proteomic assessment of mice fed high carbohydrate and high fat diets identify a disconnect between proteins associated with de novo lipogenesis and fat

Project description:De novo lipogenesis (DNL) has been implicated in the development and progression of hepatic liver steatosis. Hepatic DNL is strongly influenced by dietary macronutrient composition with diets high in carbohydrate increasing DNL and diets high in fat decreasing DNL. The enzymes in the core DNL pathway have been well characterised however less is known about proteins that play accessory or regulatory roles in DNL. In the current study, we associate measured rates of hepatic DNL and liver fat content with abundance of liver proteins from liquid chromatography mass spectrometry in mice to identify known and uncharacterised proteins that may have a role in DNL. Male C57BL/6J mice were fed either a standard chow diet a semi-purified high starch diet or a high fat diet. Both semi-purified diets resulted in increased body weight, fat mass and liver triglyceride content compared to chow-fed mice while hepatic DNL was increased in the high starch fed mice and decreased in the high fat fed mice. Proteomic analysis was carried out on the livers of these mice and proteins were identified that associated with either the rate of DNL or triglyceride content in the liver. There was no overlap between DNL and triglyceride associated proteins. We identify novel proteins associated with DNL that are involved in taurine metabolism, which suggests a link between these pathways. Further analysis identified proteins that are differentially regulated when comparing a non-purified chow diet to either of the semi-purified diets to provide a set of proteins that are regulated by the degree of dietary complexity alone. Finally, we compared the liver proteome between 4 week-fed and 30-week diet-fed mice and found remarkable similarity suggesting that the majority of diet-regulated proteins change early in response to differing dietary components.

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Differential expression of genes in pancreatic islets from high fat fed AKR/J and C57Bl/6J

Project description:Increased fat intake is associated with obesity and insulin resistance. In some individuals, a failure of pancreatic b-cells to increase insulin production in response to the high demands of obesity leads to diabetes. We sought to determine whether the impaired b- cell adaptation in obesity is associated with differential expression of genes involved in b-cell expansion and intermediary metabolism. Two strains of inbred mice prone to obesity, C57Bl/6J and AKR/J, were fed regular rodent chow or high-fat diet, after which islet morphology, secretory function and gene expression were assessed. AKR/J had lower blood glucose and higher insulin levels compared with C57Bl/6J mice on regular rodent chow or high fat diet. Insulin secretion was 3.2 fold higher in AKR/J than C57Bl/6J mice following intraperitoneal glucose injection. Likewise, glucose-stimulated insulin secretion from isolated islets was higher in AKR/J. Additionally, islet mass was 1.4 fold greater in AKR/J compared with C57Bl/6J. To elucidate the factors associated with the differences in insulin, we analyzed the gene expression profiles in pancreatic islets in AKR/J and C57Bl/6J mice. Of 14,000 genes examined, 220 were up-regulated and 286 were down-regulated in islets from diet-induced obese AKR/J mice compared with C57Bl/6J mice. Key genes involved in islet signaling and metabolism, e.g. glucagon like peptide-1 receptor, sterol Co-A desaturase 1 & 2 and fatty acid desaturase 2 were upregulated in obese AKR/J mice. The expression of multiple extracellular matrix proteins was also increased in AKR/J mice, suggesting a role in modulation of islet mass. Functional analyses of differentially regulated genes hold promise for elucidating factors linking obesity to alterations in islet function. Keywords: response to high fat diet

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Project description:The present study was conducted to evaluate the effects of the intake of three types of coffee (caffeinated, decaffeinated, and green unroasted coffee) on the livers of C57BL/6J mice fed a high-fat diet, and to extensively elucidate the physiological responses to coffee intake by analysing the findings obtained from a comprehensive transcriptomic analysis using DNA microarrays. The present study was conducted to evaluate the effects of the intake of three types of coffee (caffeinated, decaffeinated, and green unroasted coffee) on the livers of C57BL/6J mice fed a high-fat diet, and to extensively elucidate the physiological responses to coffee intake by analysing the findings obtained from a comprehensive transcriptomic analysis using DNA microarrays. Briefly, 7-week-old male C57BL/6J mice purchased from Charles River Laboratories Japan (Yokohama) were divided into the following five groups. The normal diet group (ND group) was fed D12450B (10 kcal% fat, Research Diets, New Brunswick, NJ, USA). The high-fat diet group (HF group) was fed D12492 (60 kcal% fat, Research Diets, New Brunswick, NJ, USA). The caffeinated coffee group (HFCC group) was fed a high-fat diet containing 2% caffeinated freeze-dried coffee. The decaffeinated coffee group (HFDC group) was fed a high-fat diet containing 2% decaffeinated freeze-dried coffee. The green unroasted coffee group (HFGC group) was fed a high-fat diet containing 2% unroasted caffeinated freeze-dried coffee. The mice had ad libitum access to their diets and drinking water. After 9 weeks, mice were sacrificed and the livers were subjected to the Affymrtix DNA microarray experiment.

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Impact of various high fat diets on intestinal gene expression in mouse

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Liver tissue from hormone treated C57BL/6J mice versus pool C57BL/6J mice of chow diet Liver

Project description:The purpose of this experiment was to determine the expression traits in animals of inbred strain C57BL/6J, treated with gonadal hormones. (N=40, 20 males and 20 females). Liver tissue from the hormone treated group consists of 40 female and male C57BL/6J mice fed a chow diet containing 4% fat (Ralston-Purina Co., St. Louis, MO) until 8 weeks of age and then were gonadectomized at 8 weeks of life, implanted with hormone pellets at 12 weeks, and sacrificed at 14 weeks. Male and female mice of the hormone treated groups received subcutaneous implants of either 0.5 mg estradiol (E2) pellet (plasma yield of 300 picogram/ml) or a 5 mg dihydrotestosterone (DHT) pellet (plasma yield of 1-2 nanogram/ml), designed to release over 21 days, (Innovative Research of America, 17B-estradiol: Cat. No. E-121 0.5mg/pellet, 5a-dihydrotestosterone: Cat. No. A-16). Control mice were treated with the placebo pellet (Innovative Research of America, placebo: Cat. No. C-111). At 14 weeks mice were sacrificed, after a 12-hour fast, Liver tissue were dissected and flash frozen in LN2 and stored at -80Â°C. All sample were compared to a common pool created from equal portions of RNA from each of the samples. Keywords=hormone treated Mouse liver Tissue

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Differential expression of genes in pancreatic islet of C57Bl/6J on high fat diet

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