PROTON
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB46664 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR6395160_1.fastq.gz | Fastqsanger.gz | |||
| ERR6395160_2.fastq.gz | Fastqsanger.gz | |||
| ERR6395170_1.fastq.gz | Fastqsanger.gz | |||
| ERR6395170_2.fastq.gz | Fastqsanger.gz | |||
| ERR6395180_1.fastq.gz | Fastqsanger.gz |
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Project description:Previous studies have shown that the circulating miRNA signatures are altered in plasma-derived extracellular vesicles of individuals with type 1 diabetes. These alterations in the miRNA profile could serve as a potential biomarker applicable in clinical practice for monitoring disease status in lactating mothers with type 1 diabetes during the postpartum period. In the present study, we investigate the profiles of extracellular vesicle-derived miRNAs in circulation in a cohort of lactating mothers with and without type 1 diabetes.
2021-09-23 | E-MTAB-10458 | biostudies-arrayexpress
Project description:The early diagnosis of diabetic nephropathy (DN) is essential to improve the prognosis and manage patients affected by this disease. Standard biomarkers, including albuminuria and glomerular filtration rate, are limited to give a precise result. New molecular biomarkers are needed to identify better and predict DN disease evolution. Characteristic DN biomarkers can be identified using transcriptomic analysis. Blood samples were used to isolate RNA for microarray expression using Agilent SurePrint G3 Human Gene Expression 8x60K v2 Microarrays, we evaluated the transcriptomic profile of controls , prediabetes, type-2 diabetes mellitus, and DN.
2022-09-16 | E-MTAB-12135 | biostudies-arrayexpress
Project description:Despite research progresses, the chance to accurately predict the risk for diabetic nephropathy (DN) is still poor. Our goal is to develop new predictive tools of nephropathy starting from urine, which can be easily obtained using noninvasive procedures and it is directly related to kidney. In this study, urine from children with recent diagnosis of type 1 diabetes was subjected to proteomic analysis in comparison to age-matched controls. Targeted confirmation was performed on children with a longer history of diabetes using Western Blotting and applying a urinary lipidomic approach. To definitively understand whether the observed alterations could be related to diabetic nephropathy, urine from diabetic adults with or without albuminuria, which is an indication of nephropathy, was also examined. Our results showed that lipid metabolisms of prostaglandin and ceramide, which are significantly and specifically modified in association with DN, are already altered in children with a recent diabetes diagnosis.
2018-11-04 | PXD011183 | Pride
Project description:Metabolome analysis of people with type 2 diabetes
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Project description:To improve the power of mediation in high-throughput studies, here we introduce High-throughput mediation analysis (Hitman), which accounts for direction of mediation and applies empirical Bayesian linear modeling. We apply Hitman in a retrospective, exploratory analysis of the SLIMM-T2D clinical trial in which participants with type 2 diabetes were randomized to Roux-en-Y gastric bypass (RYGB) or nonsurgical diabetes/weight management, and fasting plasma proteome and metabolome were assayed up to 3 years. RYGB caused greater improvement in HbA1c, which was mediated by growth hormone receptor (GHR). GHR’s mediation is more significant than clinical mediators, including BMI. GHR decreases at 3 months postoperatively alongside increased insulin-like growth factor binding proteins IGFBP1/BP2; plasma GH increased at 1 year. Experimental validation indicates (1) hepatic GHR expression decreases in post-bariatric rats; (2) GHR knockdown in primary hepatocytes decreases gluconeogenic gene expression and glucose production. Thus, RYGB may induce resistance to diabetogenic effects of GH signaling.
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Project description:Inhibitors of glucose (IO+DHEA group) or fatty acids (ETOMOXIR group) metabolism were applied during bovine oocyte in vitro maturation (IVM). Control group was conducted in standard maturation conditions. In vitro fertilization and embryo culture were applied. Obtained blastocysts were analysed with regard to lipidome, metabolome (mass spectrometry), transcriptome (RNA Seq) and lipid droplets staining (BODIPY).
2023-05-31 | GSE218045 | GEO
Project description:Type 1 diabetes is a chronic autoimmune disease which results in inefficient regulation of glucose homeostasis and can lead to different vascular comorbidities through life. Next generation sequencing analysis was firstly performed to identify miRNAs that were differentially expressed between groups (20 patients vs. 10 controls). The aim of this study is to analyze the expression profile of circulating miRNAs in the plasma of adult patients with well-established type 1 diabetes and with no associated comorbidities, compared to healthy subjects, to identify miRNAs that are specific from diabetes pathology, and to assess pathways and biological processes related to the state of this disease.
2024-01-01 | E-MTAB-12641 | biostudies-arrayexpress
Project description:The incidence of type 2 diabetes (T2D) is increasing globally, with long-term implications for human health and longevity. Heart disease is the leading cause of death in T2D patients, who display an elevated risk of an acute cardiovascular event and worse outcomes following such an insult. The underlying mechanisms that predispose the diabetic heart to this poor prognosis remain to be defined. This study developed a pre-clinical model (Rattus norvegicus) that complemented caloric excess from a high-fat diet (HFD) and pancreatic β-cell dysfunction from streptozotocin (STZ) to produce hyperglycaemia, peripheral insulin resistance, hyperlipidaemia and elevated fat mass to mimic the clinical features of T2D. Ex vivo cardiac function was assessed using Langendorff perfusion with systolic and diastolic contractile depression observed in T2D hearts. Cohorts representing untreated, individual HFD- or STZ-treatments and the combined HFD+STZ approach were used to generate ventricular samples (n=9 per cohort) for sequential and integrated analysis of the proteome, lipidome and metabolome by liquid chromatography-tandem mass spectrometry. This study found that in T2D hearts, HFD treatment primed the metabolome, while STZ treatment was the major driver for changes in the proteome. Both treatments equally impacted the lipidome. Our data suggest that increases in β-oxidation and early TCA cycle intermediates promoted rerouting via 2-oxaloacetate to glutamate, γ aminobutyric acid and glutathione. Furthermore, we suggest that the T2D heart activates networks to redistribute excess acetyl-CoA towards ketogenesis and incomplete β-oxidation through the formation of short-chain acylcarnitine species. Multi-omics provided a global and comprehensive molecular view of the diabetic heart, which distributes substrates and products from excess β-oxidation, reduces metabolic flexibility and impairs capacity to restore high energy reservoirs needed to respond to and prevent subsequent acute cardiovascular events.
2022-11-01 | PXD029587 | Pride
Project description:Diabetic nephropathy (DN) is a leading cause of ESRD worldwide, but its molecular pathogenesis is not well-defined and there are no specific treatments. In humans, there is a strong genetic component determining susceptibility to DN. However, specific genes controlling DN susceptibility in humans have not been identified. Here we describe a new mouse model, combining type 1 diabetes with activation of the renin angiotensin system (RAS), which develops robust kidney disease with features resembling human DN: heavy albuminuria, hypertension and glomerulosclerosis. Additionally, there is a powerful effect of genetic background regulating susceptibility to nephropathy. The 129 strain is susceptible to kidney disease, whereas the C57BL/6 strain is resistant. To examine the molecular basis of this differential susceptibility, we analyzed the glomerular transcriptome of young mice with albuminuria but without detectable alterations in glomerular structure. We find dramatic difference in regulation of immune and inflammatory pathways with up-regulation of pro-inflammatory pathways in the susceptible (129) strain and coordinate down-regulation in the resistant (C57BL/6) strain, compared to their respective baselines. Many of these pathways were also up-regulated in a rat model and in humans with DN. Our studies suggest that genes controlling inflammatory responses, triggered by hyperglycemia and hypertension, may be critical early determinants of susceptibility to DN. The analysis was carried out on 2 strains of mice (129/SvEv and C57BL/6), each involving 2 genotypes (wild-type and RenTg/Ins2Akita mutations). Four replicates were used for each strain-genotype (with the exception of 129/SvEv wild-type mice, which had 3 replicates).
2016-08-13 | E-GEOD-85569 | biostudies-arrayexpress