Project description:Bariatric surgical techniques are known to cause weight loss and diabetes remission to varying degrees in severly obese patients. However, the mechanisms involved in the restoration of beta-cell function remain to be uncovered. In this study, the leptin-deficient ob/ob mouse was used as a model to investigate the effect of EGA bariactric surgery on pancreatic islet gene expression.
Project description:Bariatric surgical techniques are known to cause weight loss and diabetes remission to varying degrees in severly obese patients. However, the mechanisms involved in the restoration of beta-cell function remain to be uncovered. In this study, the leptin-deficient ob/ob mouse was used as a model to investigate the effect of EGA bariactric surgery on pancreatic islet miRNA expression.
Project description:Ob/ob mice are characterized by a defect in leptin synthesis. In this study, the contribution of leptin deficiency to the deregulation of miRNA expression in ob/ob mice was determined by comparing leptin infused ob/ob mice to saline control.
Project description:GWAT store most of the TAG in mice, ob/ob mice is an obese mice. Ob/ob/Fsp27-/- mice are lean when compared with ob/ob mice. The GWAT weight was dramatically reduced in ob/ob/Fsp27-/- mice. We next extract the total RNA from the GWAT of ob/ob and ob/ob/Fsp27-/- mice, to perform microaary analysis using Mouse Genome 430 2.0 arrays, Affymetrix. We then analysised the up-regulated and down regulated pathways.
Project description:GWAT store most of the TAG in mice, ob/ob mice is an obese mice. Ob/ob/Fsp27-/- mice are lean when compared with ob/ob mice. The GWAT weight was dramatically reduced in ob/ob/Fsp27-/- mice. We next extract the total RNA from the GWAT of ob/ob and ob/ob/Fsp27-/- mice, to perform microaary analysis using Mouse Genome 430 2.0 arrays, Affymetrix. We then analysised the up-regulated and down regulated pathways. We extract the RNA of GWAT from 4 month old mice and hybridization on Affymetrix microarrays. We then analysis the data.
Project description:Mouse strains like NZO and B6-ob/ob differ in their susceptibility to diet-induced diabetes. Comparison of the islet transcriptomes leads to genes that are either involved in protection or apoptosis of pancreatic islet cells upon carbohydrate challenge. Genes being upregulated in NZO can be seen as drivers of beta cell failure, while genes upregulated in B6-ob/ob are most likely involved in beta cell protection.
Project description:ob/ob mice is an obese mice. CIDE family proteins including Cidea, Cideb and Cidec play important role in lipid metabolism. Cidea is mainly expressed in the brown adipose tissue (BAT). Cidec is mainly expressed in the BAT and white adipose tissue (WAT). We generated ob/ob/Cidea-/-/Cidec-/- mice to investigate the phenotype of fat tissue. ob/ob/Cidea-/-/Cidec-/- mice are lean when compared with ob/ob mice. The tissue weight and TAG content of BAT and WAT was extreamly decreased in ob/ob/Cidea-/-/Cidec-/- mice compared with that in ob/ob mice. We next extract the total RNA from the BAT and WAT of ob/ob and ob/ob/Cidea-/-/Cidec-/- mice, to perform microarray analysis using Mouse Gene 1.0 ST array system, Affymetrix. We then analysised the up-regulated and down regulated pathways.
