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Novel biomarkers for a personalized managemnet of Type II Diabetes [adipose, liver, muscle]

ABSTRACT: Novel biomarkers for a personalized managemnet of Type II Diabetes [adipose, liver, muscle]

PROVIDER: PRJNA691542 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13416500.fastq.gz	Fastqsanger.gz
	SRR13416600.fastq.gz	Fastqsanger.gz
	SRR13416700.fastq.gz	Fastqsanger.gz
	SRR13416800.fastq.gz	Fastqsanger.gz
	SRR13416900.fastq.gz	Fastqsanger.gz

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Novel biomarkers for a personalized managemnet of Type II Diabetes [adipose, liver, muscle]

Project description:Quantitative measurement of circulating metabolites may help to identify tissue specific metabolic pathways that are modulated by or causal for a disease condition. The aim of the study was to explore associations between plasma lipid concentrations and gene expression in pancreatic β-cells and insulin target tissues in a mouse model of pre-diabetes to uncover molecular mechanisms and biomarkers of diabetes susceptibility.

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Project description:Obesity is a strong risk factor for the development of type 2 diabetes. We have previously reported that in adipose tissue of obese (ob/ob) mice, the expression of adipogenic genes is decreased. When made genetically obese, the BTBR mouse strain is diabetes susceptible and the C57BL/6J (B6) strain is diabetes resistant. We used DNA microarrays and RT-PCR to compare the gene expression in BTBR-ob/ob versus B6-ob/ob mice in adipose tissue, liver, skeletal muscle, and pancreatic islets. Our results show: 1) there is an increased expression of genes involved in inflammation in adipose tissue of diabetic mice; 2) lipogenic gene expression was lower in adipose tissue of diabetes-susceptible mice, and it continued to decrease with the development of diabetes, compared with diabetes-resistant obese mice; 3) hepatic expression of lipogenic enzymes was increased and the hepatic triglyceride content was greatly elevated in diabetes-resistant obese mice; 4) hepatic expression of gluconeogenic genes was suppressed at the prediabetic stage but not at the onset of diabetes; and 5) genes normally not expressed in skeletal muscle and pancreatic islets were expressed in these tissues in the diabetic mice. We propose that increased hepatic lipogenic capacity protects the B6-ob/ob mice from the development of type 2 diabetes. Diabetes 52:688â700, 2003 Experiment Overall Design: Four B6-ob/ob and four BTBR-ob/ob male mice at 14 weeks of age were used in the microarray study. RNA samples from two individuals were pooled for each tissue, and each pooled RNA sample was applied to an Affymetrix MGU74AV2 array. Because of the scarcity of islets in the BTBR-ob/ob mice, 4 additional mice were pooled to obtain islet RNA from these animals. Sixteen MGU74Av2 arrays (2 strains X 4 tissues X 2 replicates = 16 arrays) were used to monitor the expression level of â12,000 genes or ESTs.

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