GEO DataSets

(Submitter supplied) A gene co-expression network analysis has been conducted to identify T2D-associated gene modules. Donors 1-48 were used for the initial analysis and donors 49-80 for the replication and were normalized separately in this study

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

77 Samples

Download data: CEL

(Submitter supplied) We found PAX5 to be overexpressed in human pancreatic islets of donors from donors with type 2 diabetes compared to islets from non-diabetic individuals. Functional follow-up showed that Pax5 overexpression in rat clonal beta-cells (832/13 INS1) results in impaired insulin secretion. Microarrays were used to investigate if overexpression of Pax5 alters the gene expression profile of 832/13 INS1 beta-cells.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL23040

16 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Expression profiling by array

Platforms:

GPL6244 GPL11154

178 Samples

Download data: CEL

(Submitter supplied) Here we harnessed the potential of expression arrays in 89 human pancreatic islet donors (different levels of blood glucose (HbA1c)) to identify genes regulated in this relevant tissue for type 2 diabetes (T2D).

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

89 Samples

Download data: CEL

(Submitter supplied) Here we harnessed the potential of RNA sequencing in 89 human pancreatic islet donors to identify genes and exons regulated in this relevant tissue for T2D.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

89 Samples

Download data: GFF, GTF, TXT

(Submitter supplied) Close to 50 genetic loci have been associated with type 2 diabetes (T2D), but they explain only 15% of the heritability. In an attempt to identify additional T2D genes, we analyzed global gene expression in human islets from 63 donors.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4337

Platform:

GPL6244

63 Samples

Download data: CEL

Analysis of pancreatic islets from type 2 diabetes (T2D) and non-diabetic cadaver donors. Glycemic control (HbA1c) levels also measured from the same individuals (normoglycemic: HbA1c < 6%; hyperglycemic: HbA1c ≥ 6%). Results provided insight into molecular basis of islet dysfunction in T2D.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 disease state, 23 other sets

Platform:

GPL6244

Series:

GSE38642

63 Samples

Download data: CEL

(Submitter supplied) Genome-wide association studies in human type 2 diabetes (T2D) have renewed interest in the pancreatic islet as a major site of T2D risk. In this study, microarray data collected from mouse islets were used to identify genes that are regulated by cytokines at levels consistent with the chronic low-grade inflammation observed in T2D. The most cytokine-sensitive genes were then examined for association of single nucleotide polymorphisms (SNPs) with acute insulin response to glucose (AIRg) measured in the Genetics UndeRlying DIAbetes in HispaNics (GUARDIAN) study. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

12 Samples

Download data: CEL

(Submitter supplied) We have used RNA-seq to identify transcripts, including splice variants, expressed in human islets of Langerhans under control condition or following exposure to the pro-inflammatory cytokines interleukin-1β (IL-1β) and interferon-γ (IFN-γ). A total of 29,776 transcripts were identified as expressed in human islets. Expression of around 20% of these transcripts was modified by pro-inflammatory cytokines, including apoptosis- and inflammation-related genes. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9115

10 Samples

Download data: BED, GTF

(Submitter supplied) Neonatal beta-cells undergo a maturation process to acquire glucose responsiveness. We hypothesize that in later life, a partial reversal of this maturation might promote beta-cell dysfunction. We previously ascertained that fetuin-A, a fetal glycoprotein downregulated at birth but increasingly secreted when fatty liver develops, inhibits insulin secretion. Here, we evaluate fetuin-A’s impact on beta-cell maturation. more...

Organism:

Sus scrofa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20983

30 Samples

Download data: TSV

(Submitter supplied) To delineate the effects of BCL11A (a type 2 diabetes risk gene) in human beta cell function we knockdown BCL11A in primary human beta cells and generated and sequenced RNA-seq libraries from 4 human donors

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

8 Samples

Download data: TXT