Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of rat ventricle samples from streptozotocin (STZ)-diabetic animals to investigate mitochondrial long-chain free fatty acid export

ABSTRACT: Cardiomyopathy in type 1 diabetic patients is characterized by early onset diastolic and late onset systolic dysfunction. The mechanism underlying development of diastolic and systolic dysfunction in diabetes remains unknown. We used microarrays to detail the ventricle gene expression changes that underly development of diabetic cardiomyopathy. We identified distinct classes of up-regulated genes during this process. Experiment Overall Design: 150g male Wistar rats (Harlan) we injected with 65 mg/kg streptozotocin to induce Type 1 diabetes. Four replicates of Control and Diabetic rat ventricles were removed and frozen at Three time points for total RNA isolation and hybridization on the Affymetrix RG-U34A microarray. The 3 day samples show a baseline for initial diabetic changes in the ventricle. The 28 day samples show changes associated with diastolic dysfunction in diabetes. The 42 day samples show changes associated with both diastolic and systolic dysfunction in type 1 diabetic rat ventricles.

ORGANISM(S): Rattus norvegicus

SUBMITTER: Mohammed Abdul Matlib

PROVIDER: E-GEOD-4745 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Activation of a novel long-chain free fatty acid generation and export system in mitochondria of diabetic rat hearts.

Gerber Lamar K LK Aronow Bruce J BJ Matlib Mohammed A MA

American journal of physiology. Cell physiology 20060719 6

A number of reports indicate that a long-chain free fatty acid export system may be operating in mitochondria. In this study, we sought evidence of its existence in rat heart mitochondria. To determine its potential role, we also sought evidence of its activation or inhibition in streptozotocin (STZ)-induced diabetic rat heart mitochondria. If confirmed, it could be a novel mechanism for regulation of long-chain fatty acid oxidation (FAO) in mitochondria. To obtain evidence of its existence, we ...[more]

PMID: 16855217

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Dataset Information

Transcription profiling of rat ventricle samples from streptozotocin (STZ)-diabetic animals to investigate mitochondrial long-chain free fatty acid export

Publications

Activation of a novel long-chain free fatty acid generation and export system in mitochondria of diabetic rat hearts.

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