Submit a comment
Abstract
This issue of the JCI includes studies demonstrating that sirtuin 1 (Sirt1), a NAD+-dependent deacetylase, slows renal senescence and safeguards cells in the renal medulla. Kume et al. demonstrated that caloric restriction protected the aging kidney by preserving renal Sirt1 expression, the latter deacetylating forkhead box O3a (FOXO3a), inducing Bnip 3, and promoting mitochondrial autophagy. Sirt1 expression, as shown by He et al., enabled interstitial cells to withstand the oxidizing medullary environment and exerted antiapoptotic and antifibrotic effects in the obstructed kidney. Sirt1 is thus an important participant in renal cytoprotective responses to aging and stress.
Authors
Karl A. Nath
Guidelines
The Editorial Board will only consider comments that are deemed relevant and of interest to readers. The Journal will not post data that have not been subjected to peer review; or a comment that is essentially a reiteration of another comment.
- Comments appear on the Journal’s website and are linked from the original article’s web page.
- Authors are notified by email if their comments are posted.
- The Journal reserves the right to edit comments for length and clarity.
- No appeals will be considered.
- Comments are not indexed in PubMed.
Specific requirements
- Maximum length, 400 words
- Entered as plain text or HTML
- Author’s name and email address, to be posted with the comment
- Declaration of all potential conflicts of interest (even if these are not ultimately posted); see the Journal’s conflict-of-interest policy
- Comments may not include figures
Copyright © 2025 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)