Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Array CGH between GK and Wistar Rats for Detecting Copy Number Variations

ABSTRACT: The Goto-Kakizak (GK) rat, a nonobese animal model of Type 2 diabetes (T2D), were developed by repeated inbreeding of glucose-intolerent individuals selected from Wistar rats. During their development, GK rats suffer from reduced beta-cell mass and insulin resistance spontaneously (T2D phenotype), which are supposed to be caused by loci holding different genotypes between GK and Wistar rats. This array CGH experiment can detect loci which show different copy numbers (genotype) between GK and Wistar rats. These loci serve as a valuable repository for mining candidates contributing to the pathogenesis of T2D.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE21387 | GEO | 2010/12/31

SECONDARY ACCESSION(S): PRJNA126067

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Array CGH between GK and Wistar Rats for Detecting Copy Number Variations

Project description:The Goto-Kakizak (GK) rat, a nonobese animal model of Type 2 diabetes (T2D), were developed by repeated inbreeding of glucose-intolerent individuals selected from Wistar rats. During their development, GK rats suffer from reduced beta-cell mass and insulin resistance spontaneously (T2D phenotype), which are supposed to be caused by loci holding different genotypes between GK and Wistar rats. This array CGH experiment can detect loci which show different copy numbers (genotype) between GK and Wistar rats. These loci serve as a valuable repository for mining candidates contributing to the pathogenesis of T2D. The genomic DNA taken from 3 male GK rats as 3 test samples while pooled genomic DNA from 8 male Wistar rats as the common referrence. For each of the hybridization, a dye-swap was designed as well.

2010-12-31 | E-GEOD-21387 | biostudies-arrayexpress

GK and Wistar rats

Project description:Whole genome sequencing of GK and Wistar rats.

| PRJEB6678 | ENA

Gene expression in adipose tissue and liver from a spontaneous rat model of Type 2 diabetes

Project description:Type 2 diabetes (T2D) is characterized by hyperglycaemia and defects in insulin secretion and action at target tissues. Using the Illumina RatRef-12 v1.0 array, gene expression was assessed in two insulin-target tissues (liver and adipose tissue) from seven-month-old spontaneously diabetic (Goto-Kakizaki [GK]) and non-diabetic (Brown-Norway [BN]) rats. This study was performed in parallel with miRNA expression profiling of the same rats.

2009-07-14 | GSE17059 | GEO

MicroRNA expression profiling in diabetic GK rat model

Project description:MicroRNAs (miRNAs), which are a newly identified class of small single-stranded non-coding RNAs, regulate their target genes via post-transcriptional pathway. It has been proved that miRNAs play important roles in many biological processes. To better understand miRNA function with type 2 diabetes, we have used an oligonucleotide microarray to monitor miRNA expression profiles of GK and Wistar rats’ muscle. We found 7 miRNAs were down-expressed and 2 were over-expressed in the muscle of GK rats. Among them, miR-24 showed the most prominent change. P38 MAPK, which is a direct target of miR-24 also showed expression difference. All the data give a clue that miR-24 might be associated with diabetes through down regulation of p38 MAPK.

2008-12-31 | GSE13920 | GEO

Hepatic gene expression profile in persimmon peel extract administrated GK rat

2011-03-17 | GSE21417 | GEO

MiRNA expression in adipose tissue and liver from a spontaneous rat model of Type 2 diabetes

Project description:MicroRNAs (miRNAs) are non-coding RNA molecules involved in post-transcriptional control of gene expression of a wide number of genes, including those involved in glucose homeostasis. Type 2 diabetes (T2D) is characterized by hyperglycaemia and defects in insulin secretion and action at target tissues. Using a miRNA microarray platform, we sought to establish differences in miRNA expression in two insulin-target tissues (liver and adipose tissue) from seven-month-old spontaneously diabetic (Goto-Kakizaki [GK]) and non-diabetic (Brown-Norway [BN]) rats. MiRNA data were integrated with gene expression data from the same rats to investigate how differentially expressed miRNAs affected the expression of their predicted target genes. Two-colour experiment comparing GK and BN rat strains for two different tissues. Biological replicates: 4 GK and 4 BN rats; adipose tissue and liver extracted from each rat. Two samples were hybridised to each array (one of each strain, same tissue)

2010-05-16 | E-GEOD-17058 | biostudies-arrayexpress

Hepatic gene expression profile in persimmon peel extract administrated GK rat

Project description:Persimmon (Diospyros kaki L. f.) is a most popular fruit in Asian countries but its peels are totally wasted despite of containing a plenty of antioxidants such as carotenoids and polyphenols. We prepared a fat-soluble extract from a persimmon peel (PP) fraction and fed type 2 diabetic Goto-Kakizaki (GK) rats with a PP extract-containing AIN-93G diet (PP diet) for 12 weeks. Compared with the control AIN-93G diet, the feeding of the PP diet reduced the plasma glutamic-pyruvate transaminase activity significantly, with accumulation of M-NM-2-cryptoxanthin in the liver. A DNA microarray analysis revealed that the PP diet altered the hepatic gene expression profiles. In particular, insulin signaling pathway-related genes were significantly enriched in differentially expressed gene sets. Moreover, Western blotting analysis actually showed the promotion of IRM-NM-2 tyrosine phosphorylation. All these data suggest that the PP extract administration to the GK rats improves their insulin resistance. Male GK rats (90M-bM-^@M-^S107 g), aged 5 weeks, were purchased from Japan SLC Co. (Hamamatsu, Japan). The rats were maintained in a room at 22 M-BM-1 1M-BM-0C under a 12-h light-dark cycle (lights on at 0800) and administered a commercial diet (AIN-93G, Research Diets, Inc., New Brunswick, NJ, USA) for a week. The rats were allowed free access to diet and water. After one week, they were divided into two groups with similar average body weights. The control group rats (n = 4) were fed on the commercial diet, and the PP group rats (n = 4) on the same diet containing the PP extract. After the 12-week-feeding the liver was excised and analyzed the effect of PP extract administration on hepatic gene expression.

2011-03-17 | E-GEOD-21417 | biostudies-arrayexpress

Temporal Transcriptomic and Proteomic Landscapes of Deteriorating Pancreatic Islets in Type 2 Diabetic Rats

Project description:Progressive reductions in β-cell mass and function comprise the core of the pathogenesis mechanism leading to type 2 diabetes (T2D). To understand the molecular events in this process, we quantified the temporal transcriptome and proteome of pancreatic islets from Goto-Kakizaki (GK) rats at different stages of diabetes. Integrated omics analysis allowed us to unravel the chronological order of T2D-related molecular events during GK islet deterioration. Two major events occur early in the disease, specifically, a reduction in β-cell mass caused by defective neogenesis and senescence-related low proliferation, and metabolic shift caused by mitochondrial dysfunction. Furthermore, our data revealed the evolution of compensation failure in GK islets and two distinct stages of islet inflammation: priming and amplification. Our study offers a valuable resource for the diabetes research community and will facilitate further studies aimed at protecting β-cell mass and function.

2017-12-22 | GSE81811 | GEO

PIWI-interacting RNAs as novel regulators of pancreatic beta-cell function [GK, wistar samples]

Project description:There is mounting evidence indicating that piRNAs are also present in somatic cells where they may accomplish additional regulatory tasks. The aim of this study was to identify the piRNAs expressed in pancreatic islets and to determine whether they are involved in the control of beta-cell activities. piRNA profiling of rat pancreatic islets was performed by microarray. We detected about 18’000 piRNAs in rat pancreatic islets, many of which were differentially expressed throughout islet of Goto-Kakizaki rats, a well-established model of Type 2 diabetes.

2017-06-29 | GSE93791 | GEO

Transcription profiling of white adipose tissue and kidney in a rat BNxGK F2 cross

Project description:The genetic control of kidney and white adipose tissue transcriptomic regulation was investigated in Goto-Kakizaki (GK), Brown Norway and hybrids of an F2cross between GK and BN rats using Illumina Beadchips. Expression data was determined in 5 months old rats.

2014-01-20 | E-MTAB-969 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data