Key result
Female rats showed superior right ventricular function and less diastolic dysfunction and fibrosis compared with male rats in a juvenile model of right ventricular pressure load.
Why the study?
Temporal sex-related differences in right ventricular adaptation to pressure load during pubertal development had not been previously evaluated.
Do female rats show better right ventricular adaptation to pressure overload compared to male rats in a juvenile model?
Do female rats show better right ventricular adaptation to pressure overload compared to male rats in a juvenile model?
Female rats exhibit better right ventricular adaptation to pressure overload than males, and these differences appear to be independent of pubertal sex hormones.
In this study, we describe sex differences in our unique weanling rat model of increased RV pressure load by pulmonary artery banding. We are the first to assess temporal sex-related differences in RV adaptation during pubertal development. Female rats show superior RV function and less diastolic dysfunction and fibrosis compared with male rats. These differences are already present before puberty, indicating that the differences in RV adaptation are not only determined by sex hormones.
No takes yet. Share an insight, caveat, or question.
Bossers et al. (2022) studied Right ventricular pressure load. Female sex vs. Male sex was evaluated on Right ventricular function, diastolic dysfunction, and fibrosis. Female rats showed superior right ventricular function and less diastolic dysfunction and fibrosis compared with male rats in a juvenile model of right ventricular pressure load.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: