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Identification of Hub Genes and Potential ceRNA Networks of Diabetic Cardiomyopathy [miRNA-seq]

ABSTRACT: To explore the unique pathogenesis of DCM and analyzed the differences in gene expression, associated pathways and immune cell infiltration among different organs that are targeted by high glucose by bioinformatics-based strategy. In order to find the specific factors that trigger DCM, we contrasted the gene profile of DCM to that of other diabetic diseases including diabetic peripheral neuropathy (DPN) and nephropathy (DN). we performed RNA-seq and miRNA sequencing on heart tissue from db/db mice to explore the transcriptome alterations in DCM pathogenesis including lncRNA, miRNA and mRNA.

ORGANISM(S): Mus musculus

PROVIDER: GSE211107 | GEO | 2023/05/10

REPOSITORIES: GEO

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Identification of Hub Genes and Potential ceRNA Networks of Diabetic Cardiomyopathy [RNA-seq]

Project description:To explore the unique pathogenesis of DCM and analyzed the differences in gene expression, associated pathways and immune cell infiltration among different organs that are targeted by high glucose by bioinformatics-based strategy. In order to find the specific factors that trigger DCM, we contrasted the gene profile of DCM to that of other diabetic diseases including diabetic peripheral neuropathy (DPN) and nephropathy (DN). we performed RNA-seq and miRNA sequencing on heart tissue from db/db mice to explore the transcriptome alterations in DCM pathogenesis including lncRNA, miRNA and mRNA.

2023-05-10 | GSE211106 | GEO

Comparative RNA-Seq transcriptome analyses of diabetic nerve and kidney disease II

Project description:Diabetic kidney disease (DKD) and diabetic peripheral neuropathy (DPN) are common complications of type 1 (T1D) and type 2 (T2D) diabetes. However, the mechanisms underlying the development and progression of these complications are unclear. Thus, the goal of the current study was to use system biology approaches to examine DKD and DPN pathogenesis in T1D and T2D mouse models on the same genetic background. We optimized a streptozotocin-induced db/+ murine model of T1D and compared it to our established db/db T2D mouse model of the same C57BLKS/J background and confirmed both develop DKD and DPN. Transcriptomic data from glomeruli and sciatic nerve tissue from T1D and T2D mice were analyzed by self-organizing map and differential gene expression analysis followed by functional enrichment. Consistent with prior literature, pathways related to immune function and inflammation were dysregulated in both DKD and DPN in T1D and T2D mice. The gene-level analysis identified a high degree of concordance in DEGs in both DKD and DPN and across diabetes type, suggesting genetic background influences diabetic complications. These findings offer new insight as the influence of genetic background on DPN in mouse models has not been well defined. Collectively, these findings support the role of inflammation and genetic background in complications of both T1D and T2D.

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Gene expression profiles of diabetic kidney disease and neuropathy in eNOS knockout mice: predictors of pathology and RAAS blockade effects

Project description:Diabetic kidney disease (DKD) and diabetic peripheral neuropathy (DPN) are two common diabetic complications. However, their pathogenesis remains elusive and current therapies are only modestly effective. We evaluated genome-wide expression to identify pathways involved in DKD and DPN progression in db/db eNOS -/- mice receiving renin-angiotensin-aldosterone system (RAAS) blocking drugs to mimic the current standard of care for DKD patients. Diabetes and eNOS deletion worsened DKD, which improved with RAAS treatment. Diabetes also induced DPN, which was not affected by eNOS deletion or RAAS blockade. Given the multiple factors affecting DKD and the graded differences in disease severity across mouse groups, an automatic data-analysis method, SOM or self-organizing map was used to elucidate glomerular transcriptional changes associated with DKD, whereas pairwise bioinformatics analysis was used for DPN. These analyses revealed that enhanced gene expression in several pro-inflammatory networks and reduced expression of development genes correlated with worsening DKD. Although RAAS treatment ameliorated the nephropathy phenotype, it did not alter the more abnormal gene expression changes in kidney. Moreover, RAAS exacerbated expression of genes related to inflammation and oxidant generation in peripheral nerves. The graded increase in inflammatory gene expression and decrease in development gene expression with DKD progression underline the potentially important role of these pathways in DKD pathogenesis. Since RAAS blockers worsened this gene expression pattern in both DKD and DPN, it may partly explain the inadequate therapeutic efficacy of such blockers.

2022-07-08 | GSE159059 | GEO

USP28-regulated mitochondrial homeostasis mechanism that involves the PPARα-Mfn2 axis in diabetic hearts [ChIP-seq]

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2023-10-15 | GSE244905 | GEO

Transcriptional profiling of diabetic peripheral neuropathy patients, diabetic patients, and healthy participants

Project description:Diabetic peripheral neuropathy (DPN) is a common complication of diabetes mellitus (DM). It is not diagnosed or managed properly in the majority of patients, because its pathogenesis remains controversial. In this study, using microarray-based genome-wide expression analyses, we sought to identify both common and distinct mechanisms underlying the pathogenesis of DM and DPN. The results demonstrated that down-regulation of the neurotrophin-MAPK signaling pathway may be the major mechanism of DPN pathogenesis, thus providing a potential approach for DPN treatment.

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RNA Sequencing of Cardiac in STZ-induced Rat model Uncovers Potential Target of Diabetic cardiomyopathy

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2022-03-13 | GSE197999 | GEO

Expression data from whole retina of 8-week old db/db diabetic mice and lean littermates

Project description:Diabetic retinopathy is one of the leading causes of blindness in diabetic patients. Emerging evidence suggests that retinal neurodegeneration is an early event in the pathogenesis of diabetic retinopathy, but the underlying causes of neuronal loss are unknown. To unravel potential mechanisms underlying early retinal neurodegeneration in diabetic retinopathy, a gene expression profiling study was undertaken to compare the gene expression in retinas of 8-week db/db diabetic mice with that of lean non-diabetic littermates. Retinas were obtained from 8-week db/db diabetic mice and age-matched lean non-diabetic controls. Total RNA was extracted and processed for being hybridized onto affymetrix DNA microarrays.

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Expression data from kidney in type 2 diabetic db/db mice

Project description:Diabetic nephropathy(DN) is a common diabetic microvascular complication, the underlying mechanisms involved in DN remain to be elucidated. We used microarrays to explore the global profile of gene expression for better understanding the molecular mechanism of diabetic nephropathy in type 2 diabetic db/db mice.

2017-06-10 | GSE87359 | GEO

Proteomics analyses reveal the novel targets of spermine alleviating diabetic cardiomyopathy

Project description:Diabetic cardiomyopathy (DCM) is one of the most serious complications of diabetes. Recent cardiology studies suggest that spermine has cardioprotective effect. Here, we used proteomics analyses to reveal the underlying research target in type 2 diabetic mouse model treated with spermine. Left ventricular tissue was excised from 9 mice (Control group, 3; T2D group（db/db mouse）, 3; T2D+SP group, 3) and analyzed. Quantitative analysis of the global proteome were detected using 4D label-free technique,and differentially expressed proteins (DEPs) were used to perform bioinformatic analyses.

2022-10-13 | PXD036364 | Pride

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Project description:Diabetic cardiomyopathy (DCM) is an important complication of chronic diabetes mellitus (DM). However, its pathogenesis and pathologic process have not been fully elucidated. This study was aimed to investigate the role of ferroptosis in the pathogenesis of DCM and clarify the effect of HMOX1 on DCM by targeting ferroptosis. DCM mouse model was constructed by high fat diet (HFD) feeding and streptozotocin (STZ). injection.

2023-08-28 | GSE241166 | GEO

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