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Comparative cardioprotective effects of carvedilol versus atenolol in a rat model of cardiorenal syndrome type 4

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Abstract

The incidence of chronic kidney disease is escalating; cardiorenal syndrome (CRS) type 4 is gaining a major health concern causing significant morbidity and mortality, putting major burdens on the healthcare system. This study was designed to compare the cardioprotective effects of carvedilol versus atenolol against CRS type 4 induced by subtotal 5/6 nephrectomy in rats and to explore the underlying mechanisms. Immediately after surgery, carvedilol (20 mg/kg/day) or atenolol (20 mg/kg/day) was added to drinking water for 10 weeks. Carvedilol was more effective than atenolol in improving kidney functions, decreasing elevated blood pressures, attenuating cardiac hypertrophy, reducing serum brain natriuretic peptide, and diminished cardiac fibrous tissue deposition. However, carvedilol was equivalent to atenolol in modulating β1-adrenergic receptors (β1ARs) and cardiac diacylglycerol (DAG) signaling, but carvedilol was superior in modulating β-arrestin2, phosphatidyl inositol 4,5 bisphosphates (PIP2), and caspase 3 levels. Carvedilol has superior cardioprotective effects than atenolol in a rat model of CRS type 4. These protective effects are mediated through modulating cardiac β1ARs/β-arrestin2/PIP2/DAG as well as abating cardiac apoptotic signaling pathways (caspase3/pS473 protein kinase B (Akt)).

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The data of this study are available from the corresponding author upon request.

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“The authors declare that all data were generated in-house and that no paper mill was used.” RM, SE, and DA: conception and design the experiment. RM and ON: writing the manuscript and data management and analysis. All authors contributed to drafting and revising the article, approved the final version, and agreed to be accountable for all aspects of the study.

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Correspondence to Ola E. Nafea.

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Ethics approval

All animals received humane care in compliance with the Animal Care Guidelines of the National Institutes of Health (NIH), and the Research Ethics Committee of the Faculty of Pharmacy, Zagazig University, Zagazig, Egypt, approved the design of the experiment (approval number P4-8–2017).

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All authors approved the manuscript to be published in its final version.

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The authors declare no competing interests.

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Mohamed, R.M.S.M., Elshazly, S.M., Nafea, O.E. et al. Comparative cardioprotective effects of carvedilol versus atenolol in a rat model of cardiorenal syndrome type 4. Naunyn-Schmiedeberg's Arch Pharmacol 394, 2117–2128 (2021). https://doi.org/10.1007/s00210-021-02130-1

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  • DOI: https://doi.org/10.1007/s00210-021-02130-1

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