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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Hepatic gene expression in wild type and SHPKO mice fed chow or western diet

ABSTRACT: SHP (small heterodimer partner; NR0B2) belongs to the nuclear hormone receptor superfamily, which regulates numerous developmental and metabolic cellular functions. To study physiological function of SHP, we generated congenic SHP-/- mice on C57Bl/6 background. When the congenic SHP-/- mice were challenged with a western diet (harlan, TD.88137) for 22 weeks, they were resistant to diet induced obesity and hepatic steatosis compared to WT controls. However, their hepatic insulin sensitivity was compromised when assessed with phospho-Akt levels after insulin injection. Therefore, we investigated hepatic gene expression using illumina beadchip array to explore mechanisms underneath the unique liver physiology in SHP-/- mice. Livers were collected from C57Bl/6 wild type and C57Bl/6 SHP-/- mice fed chow or western diet. The 1 microgram of total RNA obtained from individual mouse (n=4 per group) and subjected to illumina beadchip gene expression profiling.

ORGANISM(S): Mus musculus

SUBMITTER: Yoonkwang Lee

PROVIDER: E-GEOD-38013 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Hepatic gene expression in wild type and SHPKO mice fed chow or western diet

Project description:SHP (small heterodimer partner; NR0B2) belongs to the nuclear hormone receptor superfamily, which regulates numerous developmental and metabolic cellular functions. To study physiological function of SHP, we generated congenic SHP-/- mice on C57Bl/6 background. When the congenic SHP-/- mice were challenged with a western diet (harlan, TD.88137) for 22 weeks, they were resistant to diet induced obesity and hepatic steatosis compared to WT controls. However, their hepatic insulin sensitivity was compromised when assessed with phospho-Akt levels after insulin injection. Therefore, we investigated hepatic gene expression using illumina beadchip array to explore mechanisms underneath the unique liver physiology in SHP-/- mice.

2012-05-17 | GSE38013 | GEO

mRNA expression in islets isolated from wild type and SHPKO mice fed chow or western diet

Project description:SHP (small heterodimer partner; NR0B2) belongs to the nuclear hormone receptor superfamily, which regulates numerous developmental and metabolic cellular functions. To study physiological function of SHP, we generated congenic SHP-/- mice on C57Bl/6 background. When the congenic SHP-/- mice were challenged with a western diet (high fat, hgih sucrose, high cholesterol) for 20 weeks, they were resistant to diet induced obesity but severely glucose intolerant compared to wild type control mice. However, their overall peripheral tissue insulin sensitivity was normal when assessed by insulin tolerance test. Next, we examined the glucose stimulated insulin secretion (GSIS) in isolated islets from these animals. Islets from SHP-/- mice showed strongly impaired GSIS especially fed the western diet, which is believed to be a major factor causing the whole body glucose intolerance in SHP-/- mice. Therefore, we explored gene expression in islets using illumina beadchip array to understand mechanisms underneath the impaired GSIS.

2010-02-24 | GSE20518 | GEO

Liver gene expression profile _ wild type_ CYP7A1 transgenic

Project description:Bile acids are not only physiological detergents facilitating nutrient absorption, but also signaling molecules regulating metabolic homeostasis. We reported recently that transgenic expression of CYP7A1 in mice stimulated bile acid synthesis and prevented Western diet-induced obesity, insulin resistance and hepatic steatosis. The aim of this experiment is to determine the impact of induction of hepatic bile acid synthesis on liver metabolism by determining hepatic gene expression profile in CYP7A1 transgenic mice. CYP7A1 transgenic mice and wild type control mice were fed either standard chow diet or high fat high cholesterol Western diet for 4 month. Hepatic gene expressions were measured by microarray analysis. Our results indicate that hepatic bile acid synthesis is closely linked to cholesterogenesis and lipogenesis, and maintaining bile acid homeostasis is improtant in hepatic metabolic homeostasis. Male aged matched (~ 12-14 weeks) CYP7A1 transgenic mice and their wild type control littermates were fed a standard chow diet or a high fat (42%) high cholesterol (0.2%) diet (Harlan Teklad #88137) for 4 month Four groups (4 mice/group) are included in the experiments: Group 1: WT _ Chow Group 2: CYP7A1-tg + chow Group 3: WT + Western diet Group 4: CYP7A1-tg _ Western diet Total liver mRNA was isolated with a RNeasy kit (Qiagen) and used for microarray analysis.

2013-08-15 | E-GEOD-38872 | biostudies-arrayexpress

Ath29 congenic mice - gene expression in aorta

Project description:A congenic mouse line was constructed by introgressing a C3H chromosome 9 region harboring Ath29 into the C57BL/6 apoE-deficient background. RNA was extracted from aorta using a QIAGEN kit . Total RNA was pooled in an equal amount from 3 mice for each group. Standard Affymetrix procedures were performed using 8ug of total RNA. Microarrays were used to detect gene expression in the aorta of Ath29 congenic mice and C57BL/6 apoE-deficient mouse strains fed a chow or western diet. 4 groups of mice were studied: C57BL/6 apoE-/- control mice and Ath29 congenic mice fed a chow or Western diet. After fed a Western diet for 2 weeks, aorta was harvested and total RNA prepared.

2011-05-11 | E-GEOD-29149 | biostudies-arrayexpress

Bglu3 congenic mice - gene expression in liver

Project description:A congenic line was constructed by introgressing a C3H chromosome 1 region harboring Bglu3 into C57BL/6 apoE-/- background. RNA was extracted from liver using a QIAGEN kit . Total RNA was pooled in an equal amount from 3 mice for each group. Standard Affymetrix procedures were performed using 8ug of total RNA. Microarrays were used to detect gene expression in the liver of Bglu3 congenic mice and C57BL/6 apoE-deficient mouse strains fed a western diet. 2 groups of mice were studied: C57BL/6 apoE-/- control mice and Bglu3 congenic mice. After fed a Western diet for 12 weeks, liver was harvested and total RNA prepared.

2011-05-11 | E-GEOD-29151 | biostudies-arrayexpress

Bglu3 congenic mice - gene expression in liver

2011-05-11 | GSE29151 | GEO

Ath29 congenic mice - gene expression in aorta

2011-05-11 | GSE29149 | GEO

Expression profiling of Brain tissue from C57BL/6J X C3H/HeJ)F2 and (C3H/HeJ X C57BL/6J)F2

Project description:The purpose of this experiment was to determine the expression traits in animals from F2 intercross of inbred strains C57BL/6J, C3H/HeJ. (N=309, 164 males and 145 females). Brain from 292 F2 female and male mice were generated by intercrossing F1 mice. Mice were fed chow diet containing 4% fat (Ralston-Purina Co., St. Louis, MO) until 8 weeks of age and then were placed on a high-fat "Western" diet containing 42% fat and 0.15%cholesterol (Teklad 88137, Harlan Teklad, Madison WI) for 12 weeks. At 20 weeks mice were sacrificed, after a 12-hour fast Brain tissues were dissected and flash frozen in LN2 and stored at -80Â°C.

2009-08-09 | E-GEOD-12798 | biostudies-arrayexpress

Liver gene expression profile _ wild type_ CYP7A1 transgenic

2013-08-15 | GSE38872 | GEO

Gene Expression in wild type and Atp7b-/- mice

Project description:Inactivating mutations in the copper transporter Atp7b result in Wilson’s disease. The Atp7b-/- mouse develops hallmarks of Wilson’s disease. The activity of several nuclear receptors is decreased in Atp7b-/- mice, and nuclear receptors are critical for maintaining metabolic homeostasis. Therefore, we anticipated that Atp7b-/- mice would exhibit altered progression of diet-induced obesity, fatty liver, and insulin resistance. Following 10 weeks on a chow or Western-type diet (40% kcal fat), parameters of glucose and lipid homeostasis were measured. Hepatic metabolites were measured by LC-MS and correlated with transcriptomic data. Atp7b-/- mice fed a chow diet had lower fat mass and were more glucose tolerant than wild type (WT) littermate controls although body weights did not differ between genotypes. On Western diet, Atp7b-/- mice exhibited reduced adiposity and hepatic steatosis compared with WT controls. Atp7b-/- mice fed either diet were more insulin sensitive than WT controls; however, fasted Atp7b-/- mice exhibited hypoglycemia after administration of insulin, due to an impaired glucose counter-regulatory response, as evidenced by reduced hepatic glucose production. Coupling gene expression with metabolomic analyses, we observed striking changes in hepatic metabolic profiles in Atp7b-/- mice. In addition, the active phosphorylated form of AMP kinase was significantly increased in Atp7b-/- mice relative with WT controls. Alterations in hepatic metabolic profiles and nuclear receptor signaling were associated with improved glucose tolerance and insulin sensitivity, as well as impaired fasting glucose production in Atp7b-/- mice.

2020-04-14 | GSE125637 | GEO

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