• Transl Res · Jun 2022

    A systematic analysis of diet-induced nephroprotection reveals overlapping changes in cysteine catabolism.

    • Felix C Koehler, Chun-Yu Fu, Martin R Späth, K Johanna R Hoyer-Allo, Katrin Bohl, Heike Göbel, Jan-Wilm Lackmann, Franziska Grundmann, Thomas Osterholt, Claas Gloistein, Joachim D Steiner, Adam Antebi, Thomas Benzing, Bernhard Schermer, Günter Schwarz, Volker Burst, and Roman-Ulrich Müller.
    • Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.
    • Transl Res. 2022 Jun 1; 244: 32-46.

    AbstractCaloric Restriction (CR) extends lifespan and augments cellular stress-resistance from yeast to primates, making CR an attractive strategy for organ protection in the clinic. Translation of CR to patients is complex, due to problems regarding adherence, feasibility, and safety concerns in frail patients. Novel tailored dietary regimens, which modulate the dietary composition of macro- and micronutrients rather than reducing calorie intake promise similar protective effects and increased translatability. However, a direct head-to-head comparison to identify the most potent approach for organ protection, as well as overlapping metabolic consequences have not been performed. We systematically analyzed six dietary preconditioning protocols - fasting mimicking diet (FMD), ketogenic diet (KD), dietary restriction of branched chained amino acids (BCAA), two dietary regimens restricting sulfur-containing amino acids (SR80/100) and CR - in a rodent model of renal ischemia-reperfusion injury (IRI) to quantify diet-induced resilience in kidneys. Of the administered diets, FMD, SR80/100 and CR efficiently protect from kidney damage after IRI. Interestingly, these approaches show overlapping changes in oxidative and hydrogen sulfide (H2S)-dependent cysteine catabolism as a potential common mechanism of organ protection.Copyright © 2022 Elsevier Inc. All rights reserved.

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