11-beta-hydroxysteroid dehydrogenase type 1 (HSD11B1) gene expression in muscle is linked to reduced skeletal muscle index in sarcopenic patients.

"Declarations Conflict of interestAll the authors declare that no conflict of interest could be perceived as prejudicing the impartiality of the research reported. Statement of human and animal rightsAll procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the ethics committee of LMU Munich (IRB-No. 328–15). Informed consentInformed consent was obtained from all individual participants included in the study. Conflict of interest All the authors declare that no conflict of interest could be perceived as prejudicing the impartiality of the research reported."

"Funding Open Access funding enabled and organized by Projekt DEAL. This work was supported by the Förderprogramm für Forschung und Lehre (FöFoLe) (Reg. Nr.1148) to S.S. This work was supported by the Deutsche Forschungsgemeinschaft (Heisenberg Professorship 325768017 and project 314061271-TRR 205) to N.R. and by the Clinician Scientist Program RISE supported by the Eva Luise und Horst Köhler Stiftung Else Kröner-Fresenius-Stiftung (2019_KollegSE.03 to HN). This study was supported by the EU project Keep Control, funded under the European Union’s Horizon 2020 research and innovation programmed under the Marie Skłodowska-Curie grant agreement No 721577 to M.D. The funders had no role in the design and conduct of the study, data collection and analysis, interpretation of data, or preparation of the manuscript. All other authors did not receive any specific grant from any public, commercial, or not-for-profit funding agency."