Project description:The microRNAs (miRNAs) that can influence diabetic kidney disease (DKD) have not been fully characterized. The aim of this study was to identify the miRNAs that affect DKD and could be used as specific biomarkers or therapeutic agents. First, kidneys from two DKD mouse models were screened for differences in miRNA expression from control mice. We found that miRNA-125b-5p and miRNA-181-5p were specifically differentially expressed in the kidneys of DKD mice. Next, we administered miRNA-181b-5p-mimic to DKD mice, which reduced the albuminuria and abnormal mesangial expansion. Pathway analysis revealed that overexpression of miRNA-181-5p significantly altered the expression of 51 genes in the kidneys of DKD mice. Furthermore, the serum level of miRNA-125b-5p was significantly higher and that of miRNA-181-5p was lower in patients with DKD than in patients with other kidney diseases. These results suggest that miRNA-125b-5p and miRNA-181b-5p may represent novel diagnostic biomarkers and that miRNA-181b-5p may represent a therapeutic target for DKD.
Project description:This research was detected the differentially expressed circular RNAs in the heart tissues of WT mouse and db/db mouse. We have completed the circRNA Arraystar mouse V.2 analysis of the 3 wt mouse and 3 db/db mouse age 3 month. Whole heart tissue RNA samples were collected and then were digested with RNAse R. Total RNA from each sample was quantified using the NanoDrop ND-1000. The sample preparation and microarray hybridization were performed based on the Arraystar?s standard protocols.
Project description:The microRNAs (miRNAs) that can influence diabetic kidney disease (DKD) have not been fully characterized. The aim of this study was to identify the miRNAs that affect DKD and could be used as specific biomarkers or therapeutic agents. First, kidneys from two DKD mouse models were screened for differences in miRNA expression from control mice. We found that miRNA-125b-5p and miRNA-181-5p were specifically differentially expressed in the kidneys of DKD mice. Next, we administered miRNA-181b-5p-mimic to DKD mice, which reduced the albuminuria and abnormal mesangial expansion. Pathway analysis revealed that overexpression of miRNA-181-5p significantly altered the expression of 51 genes in the kidneys of DKD mice. Furthermore, the serum level of miRNA-125b-5p was significantly higher and that of miRNA-181-5p was lower in patients with DKD than in patients with other kidney diseases. These results suggest that miRNA-125b-5p and miRNA-181b-5p may represent novel diagnostic biomarkers and that miRNA-181b-5p may represent a therapeutic target for DKD.
Project description:We have established a new fructose-overconsumption model using db/db mice, which showed more advanced kidney damage compared to the conventional db/db mouse model. To elucidate the mechanism of kidney injury caused by excessive fructose intake, we performed single-cell RNA analysis on the kidneys from this fructose-overconsumption model.
Project description:To investigate effects of Adjudin on gene expression of islets from db/db mouse, islets from 12 to 13 weeks old male db/db mice were isolated, cultured in incubator for overnight recovery, and treated with either DMSO or 10 µM Adjudin for 1 day before RNA sequencing.
Project description:The goal of this project is to obtain the expression pattern of miRNAs in wild type kidneys at various ages during development. The data is obtained from mouse kidneys of ages P0, P7, P14, P21 and P35. The analysis compares the expression levels of miRNAs between the age groups.