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Differential effects of a glucagon-like peptide 1 receptor agonist in NAFLD and in response to hepatectomy

ABSTRACT: The genomic analysis of liver from mice fed with standard or MCD diet and treated with FC-GLP-1 during two weeks before 70%partial hepatectomy (PH) and after 2 weeks PH resulted in a set of genes regulated by diet and other set regulated differentially by treatment in MCD treated animals. These genes are apparently responsible for the reversion and prevention of NAS and improvement in hepatic regeneration induced by drug treatment

ORGANISM(S): Mus musculus

PROVIDER: GSE119725 | GEO | 2018/09/11

REPOSITORIES: GEO

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Effects of dual agonist of GLP1 and GCGR on animal model of NAS (MCD diet) and hepatic regeneration

Project description:The genomic analysis of liver from mice fed with standard or methyl and choline deficient (MCD) diet and treated with dual agonist of GLP1R/GCGR during two weeks before 70% partial hepatectomy (PH) and after 2 weeks PH resulted in a set of genes regulated by diet and other set regulated differentially by treatment in MCD treated animals. These genes are apparently responsible for the reversion and prevention of NAS and improvement in hepatic regeneration induced by drug treatment

2016-02-23 | GSE78170 | GEO

Effects of dual agonist of GLP1 and GCGR on animal model of NAS (MCD diet) and hepatic regeneration

2016-02-23 | E-GEOD-78170 | biostudies-arrayexpress

Gene expression in the liver remnant is significantly affected by the size of partial hepatectomy - an experimental rat study

Project description:Background: Extended hepatectomies may result in post-hepatectomy liver failure, a condition with a high mortality. The main purpose of the present study was to investigate and compare the gene expression profiles in rats subjected to increasing size of partial hepatectomy. Methods: 40 Wistar rats were subjected to 30%, 70%, or 90% partial hepatectomy, sham operation or no operation. 24 hours following resection, liver tissue was harvested and genome-wide expression analysis was performed. Results: Cluster analysis revealed 2 main groupings, one containing the PH(90%) and one containing the remaining groups (baseline, sham, PH(30%) and PH(70%)). Categorization of specific affected molecular pathways in the PH(90%) group revealed a downregulation of cellular homeostatic functions degradation and biosynthesis, whereas proliferation, cell growth, and cellular stress and injury were upregulated in the PH(90%) group. After PH(90%), the main upregulated pathways were mTOR and ILK. The main activated upstream regulators were hepatocyte growth factor and transforming growth factor. Conclusion: With decreasing size of the future liver remnant, the liver tended to prioritize expression of genes involved in cell proliferation and differentiation at the expense of genes involved in metabolism and body homeostasis. This prioritizing may be an essential molecular explanation for post-hepatectomy liver failure.

2018-03-31 | GSE97429 | GEO

Genome wide analysis of liver histone H3K9 acetylation after partial hepatectomy in glucose-treated and control mice.

2016-02-09 | GSE71496 | GEO

Transcriptional analysis of non-fibrotic NAFLD progression

Project description:Background & Aims: Non-alcoholic steatohepatitis (NASH), a subtype of non-alcoholic fatty liver disease (NAFLD) that can lead to fibrosis, cirrhosis, and hepatocellular carcinoma, is characterized by hepatic inflammation. Despite evolving therapies aimed to ameliorate inflammation in NASH, the transcriptional changes that lead to inflammation progression in NAFLD remain poorly understood. The aim of this study is to define transcriptional changes in early, non-fibrotic NAFLD using a biopsy-proven non-fibrotic NAFLD cohort. Methods: We extracted RNA from liver tissue of 40 patients with biopsy-proven NAFLD based on NAFLD Activity Score (NAS) (23 with NAS ≤3, 17 with NAS ≥5) and 21 healthy controls and compared changes in expression of 594 genes involved in innate immune function. Results: Compared to healthy controls, NAFLD patients with NAS ≥5 had differential expression of 211 genes, while those with NAS ≤3 had differential expression of only 14 genes. Notably, osteopontin (SPP1) (3.74-fold in NAS ≤3, 8.28-fold in NAS ≥5) and CXCL10 (2.27-fold in NAS ≤3, 8.28-fold in NAS ≥5) gene expression were significantly upregulated with histologic progression of NAFLD.

2020-07-08 | GSE151158 | GEO

Real-time quantitative PCR analysis of the effects of chronic ethanol feeding and partial hepatectomy on gene expression in single rat hepatocytes

Project description:Heaptocytes from four different rats were analyzed for gene expression. Two animals received alcohol containing liquid diet and two other littermates were pair-fed liquid carbohydrate diet for 6-8 weeks following the Lieber-De Carli feeding protocol. The rats were then anesthetized and subjected to 70% partial hepatectomy (PHx). The left lateral and medial (LLM) lobes were removed and quickly frozen in OCT. 24 hours post hepatectomy, the rats were anesthetized again and the remnant liver was harvested. Single hepatocytes were collected from LLM and PHx liver slices using laser capture microdissection. We used the 96.96 BioMark Dynamic Array (Fluidigm) to measure the expression of functionally relevant genes in each hepatocyte.

2018-11-01 | GSE111448 | GEO

Expression data from rat hepatocyte during liver regeneration after partial hepatectomy

Project description:The recovery of liver mass is mainly mediated by proliferation and enlargement of hepatocytes after partial hepatectomy. Studying the gene expression profiles of hepatocytes after partial hepatectomy will be helpful in exploring the mechanism of liver regeneration. We used microarrays to further highlight the regulatory role of hepatocyte in liver regeneration at gene transcription level. Rat liver regeneration after partial hepatectomy (PH) is a good model to study the regulation of cell proliferation. We isolated hepatocytes from regenerating liver at 9 time points (2, 6, 12,24, 30, 36, 72, 120, and 168h) after PH and measured gene expression profiles of hepatocytes from 2h to 168h with rat Genome 230 2.0 gene chip. Each sample corresponding to one time point was hybridized onto one array. The experiment was repeated 3 times for each time point. In total, 10 time points were measured and 0h was used control group. After careful quality control analyses of each chip, Affymetrix GCOS 2.0 software was used to analyze the data. The relevance of gene expression profiles and biological processes was analyzed by bioinformatics and systems biology.

2014-02-28 | E-GEOD-55434 | biostudies-arrayexpress

Genome wide analysis of liver histone H3K9 acetylation after partial hepatectomy in glucose-treated and control mice.

Project description:We report the results of AcH3K9 ChIP-Seq on regenerating liver harvested 12 h after partial hepatectomy (PH) from mice treated with supplemental parenteral dextrose (to delay onset of PH-induced hypoglycemia) or vehicle (as control). Examination of the effect of delaying PH-induced hypoglycemia on histone H3K9 acetylation in regenerating liver.

2016-02-09 | E-GEOD-71496 | biostudies-arrayexpress

mRNA profile between 1/3 partial hepatectomy (PH) and 2/3 PH at 24 hours

Project description:Six rats underwent partial hepatectomy (PH) (3, 1/3PH; 3, 2/3PH). The total mRNA of three rats each group were pooled and compared by microarray to selected the mRNA which differs between between 2/3PH with robust DNA replication and 1/3PH with a minimal replicative response.

2016-04-08 | GSE80030 | GEO

Effects of NAFLD/NASH on hepatic gene expression.

Project description:To characterize gene expression changes in arachidonic acid metabolism pathway genes in the presense of non-alcoholic fatty liver disease (NAFLD)/non-alcoholic steatohepatitis (NASH) mice administered were administered an atherogenic diet for a period of four weeks. Administration of the atherogenic diet resulted in significant enrichment of the arachidonic acid metabolism pathway by gene set enrichment analysis (GSEA). The core enrichment subset of genes was down-regulated in mice administered the atherogenic diet and the majority of the genes that were down-regulated were cytochrome P450s. A total of 4 wild-type mice were administered a standard diet (STD; control group) and 4 wild-type mice were administered a HFHC diet (HFHC).

2014-01-03 | E-GEOD-53381 | biostudies-arrayexpress

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