Protective effects of spironolactone on vascular calcification in chronic kidney disease
2021
Hammer, Fabian | Buehling, Salvatore S. | Masyout, Jaber | Malzahn, Uwe | Hauser, Tobias | Auer, Tilman | Grebe, Sören | Feger, Martina | Tuffaha, Rashad | Degenhart, Gerald | Lang, Florian | Pasch, Andreas | Alesutan, Ioana | Wanner, Christoph | Krane, Vera | Voelkl, Jakob
Vascular calcification is common in chronic kidney disease (CKD) and associated with increased cardiovascular mortality. Aldosterone has been implicated as an augmenting factor in the progression of vascular calcification. The present study further explored putative beneficial effects of aldosterone inhibition by the mineralocorticoid receptor antagonist spironolactone on vascular calcification in CKD.Serum calcification propensity was determined in serum samples from the MiREnDa trial, a prospective, randomized controlled clinical trial to investigate efficacy and safety of spironolactone in maintenance hemodialysis patients. Experiments were conducted in mice with subtotal nephrectomy and cholecalciferol treatment, and in calcifying primary human aortic smooth muscle cells (HAoSMCs).Serum calcification propensity was improved by spironolactone treatment in patients on hemodialysis from the MiREnDa trial. In mouse models and HAoSMCs, spironolactone treatment ameliorated vascular calcification and expression of osteogenic markers.These observations support a putative benefit of spironolactone treatment in CKD-associated vascular calcification. Further research is required to investigate possible improvements in cardiovascular outcomes by spironolactone and whether the benefits outweigh the risks in patients with CKD.
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