RGD Reference Report - Pattern of superoxide dismutase enzymatic activity and RNA changes in rat heart ventricles after myocardial infarction. - Rat Genome Database

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Pattern of superoxide dismutase enzymatic activity and RNA changes in rat heart ventricles after myocardial infarction.

Authors: Assem, M  Teyssier, JR  Benderitter, M  Terrand, J  Laubriet, A  Javouhey, A  David, M  Rochette, L 
Citation: Assem M, etal., Am J Pathol. 1997 Aug;151(2):549-55.
RGD ID: 1580839
Pubmed: PMID:9250167   (View Abstract at PubMed)
PMCID: PMC1858014   (View Article at PubMed Central)

A multiplex reverse transcription polymerase chain reaction assay was designed to measure manganese superoxide dismutase (MnSOD) and CuZnSOD mRNAs in the left and right ventricles of rat hearts after myocardial infarction induced by occlusion of the left coronary artery. These data were compared with changes in enzymatic activities. In the left ventricle, Mn-SOD RNA increased significantly at 6 hours, peaked at 12 hours (490 +/- 38 arbitrary units), and progressively decreased (127 +/- 21 arbitrary units at 48 hours). In contrast, there was a steady accumulation of transcripts in the right ventricle up to 48 hours. In both ventricles, the changes in the MnSOD mRNA and protein content were not associated with proportional variations in enzymatic activity. There was no characteristic alteration of the CuZnSOD system in either ventricle over the 48-hour period. These results demonstrate that infarction selectively activates the MnSOD gene in the viable myocardium of both ventricles. They suggest that MnSOD may be involved in the adaptive response of myocytes to the overloading stress.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
myocardial infarction  ISOSod2 (Rattus norvegicus)1580839; 1580839 RGD 
myocardial infarction  IEP 1580839 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Sod2  (superoxide dismutase 2)

Genes (Mus musculus)
Sod2  (superoxide dismutase 2, mitochondrial)

Genes (Homo sapiens)
SOD2  (superoxide dismutase 2)


Additional Information