Key result
Overexpression of catalase in Gαq mice decreased SERCA oxidative modifications and restored SERCA activity and myocyte contractile function.
Why the study?
Does cardiac myocyte-specific overexpression of catalase improve SERCA activity and myocyte contractile function in Galphaq-overexpressing mice?
Population
Mice with cardiac myocyte-specific overexpression of Galphaq
Comparison
Cross-breeding with transgenic mice that have… vs Galphaq mice without catalase overexpression
Design
Preclinical
Authors
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Catalase effects on SERCA remain preclinical in Gαq cardiomyopathy; leaves open translation to human contractile dysfunction.
Does cardiac myocyte-specific overexpression of catalase improve SERCA activity and myocyte contractile function in Galphaq-overexpressing mice?
In a mouse model of Galphaq-induced cardiomyopathy, oxidative posttranslational modifications of SERCA mediate myocyte contractile dysfunction, which can be mitigated by catalase overexpression.
Lancel et al. (2010) studied Gαq-induced cardiomyopathy. Cardiac myocyte-specific overexpression of catalase vs. Gαq mice without catalase overexpression was evaluated on SERCA activity and myocyte contractile function. Overexpression of catalase in Gαq mice decreased SERCA oxidative modifications and restored SERCA activity and myocyte contractile function.
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