Ontology highlight
ABSTRACT:
PROVIDER: PRJNA978992 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR24861843.fastq.gz | Fastqsanger.gz | |||
| SRR24861844.fastq.gz | Fastqsanger.gz | |||
| SRR24861845.fastq.gz | Fastqsanger.gz | |||
| SRR24861846.fastq.gz | Fastqsanger.gz | |||
| SRR24861847.fastq.gz | Fastqsanger.gz |
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Project description:Sleeve gastrectomy (SG) can improve diabetes mellitus dramatically. However, the mechanisms remain largely undetermined. With the advancement of in-depth bioinformatic analysis, non-coding RNAs especially circular RNAs(circRNAs), have been implicated in many biological processes. To explore whether circRNAs mediate the amelioration of diabetes mellitus after SG, we subjected liver samples of diabetic rats after SG and shame operations for RNA sequencing. Through RNA sequencing, we identified a dramatically differentially expressed profile of 107 circRNAs. Some of these specific circRNAs were only expressed in diabetic rats after SG, which may be promising biological markers of SG prognosis.
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Project description:Patients with long-duration diabetes develop cardiovascular complications resulting in highly increased mortality and complications which affect the kidneys, eyes and peripheral nerves associated with high morbidity. Among the diabetic complications, damage in the eye, diabetic retinopathy, is the most common microvascular complication of diabetes. Diabetic retinopathy is a leading cause of vision-loss globally. It is characterized by a number of different patho-mechanisms including changes in vascular permeability, capillary degeneration, and finally at a late stage overshooting formation of new blood vessels. This expression analysis focused on the use of different experimental models for Diabetes Mellitus and its complications (for a review see 1: Al-Awar et al: Experimental Diabetes Mellitus in Different Animal Models. J Diabetes Res. 2016; doi: 10.1155/2016/9051426). By that, we wanted to uncover the relative contributions of systemic hyperinsulinaemia and/or hyperglycemia to molecular regulations. The following models have been used: As insulinopenic, hyperglycemic model reflecting Type 1 diabetes, male STZ-Wistar rats (60mg/kg BW; i.p.) were used. Wistar rats without STZ injection served as non-diabetic controls. Male obese ZDF rats (Fa/Fa) were used as type-2 diabetes model characterized by persisting hyperglycemia and transient hyperinsulinemia. Male lean ZDF rats (Fa/-) served as non-diabetic controls. Male obese ZF rats (Fa/Fa) hyperglycemia were used reflecting euglycemia and severe insulin resistance. Male lean ZF rats (Fa/-) served as controls. ZDF and ZF rats were obtained in two genotypes, obese (genotype fa/fa) and lean littermates (genotype Fa/?). All rats were housed in standard cages under a normal light-dark cycle for 16 weeks. All animals had free access to food and water. ZF and Wistar rats received a standard chow (Ssniff R/M) and ZDF rats received Purina 5008 chow. A group size of n=8 were used for all study groups. Wistar rats were rendered type-1 like hyperglycemic and hypoinsulinemic via a single injection of streptocotocin (STZ, 60mg/kg; i.p.) at 7 weeks of age. Obese ZDF rats (fa/fa) develop spontaneously a type-2 diabetes phenotype with persisting hyperglycemia and transient hyperinsulinemia (hyperglycemic, hypoinsulinemic). Obese ZF rats (fa/fa) develop insulin resistance with permanent hyperinsulinemia without concomitant hyperglycemia and no overt diabetes phenotype. Non STZ treated Wistar rats, lean ZDF littermates (Fa/?), and lean ZF littermates (Fa/?) served as controls. All groups were kept for 12 weeks on respective conditions together with appropriate age-matched controls. Unbiased gene expression analysis was performed per group using Affymetrix gene arrays.
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Project description:Medicinal plants or herbs have been long used in traditional practice and considered as an alternative treatment for diseases. Gynura procumbens is one of the herbs that showed high potential for treating various diseases such as diabetes mellitus, cancer and fertility. Previous study demonstrated G. procumbens potential as anti-hyperglycaemic agent by lowering the blood glucose level of diabetic-induced male rats (Hassan et al. 2010). G. procumbens is claimed to emulate the mechanism of action in insulin, by increasing the glucose intake in the skeletal muscle (Hassan et al. 2010). Another study made by Kamaruzaman & Mat Noor (2017) showed that G. procumbens extract has the ability to improve fertility of diabetes-induced male rats. Diabetes mellitus has caused deleterious effect on male reproductive system due to disruption in spermatogenesis, testicular impairment as well as erectile and ejaculation dysfunction (Alves et al. 2013). Testicular impairment in diabetic rats leads to low sperm quality. Hence, proteomic analysis was performed to identify the differential expressions of total sperm protein after treatment of G. procumbens extract.
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Project description:In order to develop new safe and potent therapeutics, insights into the mechanisms underlying diabetes mellitus are urgently needed. We used proteomics profiling of the liver tissue from Macaca fascicularis with spontaneously occurred diabetes mellitus at their middle age and including two groups of the monkeys fed with the same food and high-fat and high-sugar diet for comparison.We hoped to find something new for diabetes mellitus treatment.
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Project description:Sleeve gastrectomy (SG) could improve diabetes mellitus dramatically. However, the mechanisms remain largely undetermined. With the advancement of in-depth bioinformatic analysis, non-coding RNAs especially long non-coding RNAs(lncRNAs), have been implicated in many biological processes. To explore whether lncRNAs mediate the amelioration of diabetes mellitus condition after SG, we subjected liver samples of diabetic rats after SG and shame operations for RNA sequencing. Further, interaction network between lncRNAs and mRNAs/microRNAs(miRNAs) were constructed to infer the function of lncRNAs in diabetic remission, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Through RNA sequencing, we identified more than 9000 lncRNAs with a dramatically differentially expressed profile of 147 lncRNAs. Some of these specific lncRNAs were only expressed in diabetic rats after SG, which may be promising biological markers of diabetic remission and SG prognosis. Through co-analysis between lncRNAs and mRNAs, 20 potential target genes of lncRNAs were screened out. Further bioinformatic analysis indicated the differentially expressed lncRNAs harbored various miRNAs binding sites and three representative lncRNA-miRNA networks of lnc50 and lnc136 were constructed. The KEGG analysis revealed that differential expressed lncRNAs were mainly related to mitogen-activated protein kinase (MAPK) pathway. These results demonstrated that SG dramatically altered expression profile of lncRNAs on diabetes mellitus, and altered lncRNAs expression may contribute to the improvement on diabetic remission through MAPK pathway by interaction with mRNA/miRNA. Our findings provide valuable resources for molecular mechanism of diabetic remission after SG and is benefit for development of lncRNAs-based diagnostic and therapeutic interventions of diabetes mellitus.
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