ArticlePhysiological reports2024
Right ventricular diastolic adaptation to pressure overload in different rat strains.
Article in Physiological reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Sex and ovarian hormone status shape baseline cardiovascular physiology in Sprague Dawley rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2026Article
- Electrical Remodeling of Pressure Overloaded Rat Heart Is Attenuated if Imposed During Proliferative Cardiac Growth.Acta physiologica (Oxford, England) · 2025Article
- Left ventricular pressure-loading improves pressure-induced right ventricular remodeling by redistributing mechanical load and reducing mechanosignaling.Physiological reports · 2025Article
- Right Ventricular Diastolic Dysfunction Before Coronary Artery Bypass Grafting: Impact on 5-Year Follow-Up Outcomes.Journal of clinical medicine · 2025Article
- Chemopreventive Potential of Paddy Waste: A Promising Approach Against Benign Prostate Hyperplasia in Spontaneously Hypertensive Rats.Analytical cellular pathology (Amsterdam) · 2025Article
- Effects of dopamine β-hydroxylase inhibition in pressure overload-induced right ventricular failure.Pulmonary circulation · 2024Article
- Right ventricular diastolic adaptation to pressure overload in different rat strains.Physiological reports · 2024Article
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Authors and funding
8 authors.
Funding
Abstract
Different rat strains are used in various animal models of pulmonary hypertension and right ventricular (RV) failure. No systematic assessment has been made to test differences in RV response to pressure overload between rat strains. We compared RV adaptation to pulmonary trunk banding (PTB) in Wistar (W), Sprague Dawley (SD), and Fischer344 (F) rats by hemodynamic profiling focusing on diastolic function. Age-matched male rat weanlings were randomized to sham surgery (W-sham, n = 5; SD-sham, n = 4; F-sham, n = 4) or PTB (W-PTB, n = 8; SD-PTB, n = 8; F-PTB, n = 8). RV function was evaluated after 5 weeks by echocardiography, cardiac MRI, and invasive pressure-volume measurements. PTB caused RV failure and increased RV systolic pressures four-fold in all three PTB groups compared with sham. W- and SD-PTB had a 2.4-fold increase in RV end-systolic volume index compared with sham, while F-PTB rats were less affected. Diastolic and right atrial impairment were evident by increased RV end-diastolic elastance, filling pressure, and E/e' in PTB rats compared with sham, again F-PTB the least affected. In conclusions, PTB caused RV failure with signs of diastolic dysfunction. Despite a similar increase in RV systolic pressure, F-PTB rats showed less RV dilatation and a more preserved diastolic function compared with W- and SD-PTB.
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