Evidence map›Paper›PMID 24141423›Full record

ArticleNature medicine2013

Renal tubular Sirt1 attenuates diabetic albuminuria by epigenetically suppressing Claudin-1 overexpression in podocytes.

Kazuhiro Hasegawa, Shu Wakino, Petra Simic, Yusuke Sakamaki, Hitoshi Minakuchi, Keiko Fujimura, Kozi Hosoya, Motoaki Komatsu, Yuka Kaneko, Takeshi Kanda and 5 more

Abstract read
In one paragraph

Article in Nature medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 290 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
290citing papers in PubMed, 3 pooled it
12.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

290 citing papers in PubMed, 3 syntheses or guidelines pooled it, 474 citations in OpenAlex.

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  12. Integrative Approaches to Treating Cellular Senescence in Kidney Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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230 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 3 institutions in 2 countries.

Kazuhiro HasegawaDepartment of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan.
Shu Wakino
Petra Simic
Yusuke Sakamaki
Hitoshi Minakuchi
Keiko Fujimura
Kozi Hosoya
Motoaki Komatsu
Yuka Kaneko
Takeshi Kanda
Eiji Kubota
Hirobumi Tokuyama
Koichi Hayashi
Leonard Guarente
Hiroshi Itoh
Keio University · JPMassachusetts Institute of Technology · USShizuoka Red Cross Hospital · JP

Funding

MOLECULAR STUDY OF YEAST SGS1 AND RDNA CIRCLES IN AGINGR01AG015339 · NIA · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI GUARENTE, LEONARD P · 1999 to 2014
$5.5M
Function of SIRT1 in Growth and ReproductionR01AG011119 · NIA · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI GUARENTE, LEONARD P · 1993 to 2016
$2.8M
NIA NIH HHS R01 AG011119NIA NIH HHS R01 AG015339
6 · The paper itself

Abstract

Sirtuin 1 (Sirt1), a NAD(+)-regulated deacetylase with numerous known positive effects on cellular and whole-body metabolism, is expressed in the renal cortex and medulla. It is known to have protective effects against age-related disease, including diabetes. Here we investigated the protective role of Sirt1 in diabetic renal damage. We found that Sirt1 in proximal tubules (PTs) was downregulated before albuminuria occurred in streptozotocin-induced or obese (db/db) diabetic mice. PT-specific SIRT1 transgenic and Sirt1 knockout mice showed prevention and aggravation of the glomerular changes that occur in diabetes, respectively, and nondiabetic knockout mice exhibited albuminuria, suggesting that Sirt1 in PTs affects glomerular function. Downregulation of Sirt1 and upregulation of the tight junction protein Claudin-1 by SIRT1-mediated epigenetic regulation in podocytes contributed to albuminuria. We did not observe these phenomena in 5/6 nephrectomized mice. We also demonstrated retrograde interplay from PTs to glomeruli using nicotinamide mononucleotide (NMN) from conditioned medium, measurement of the autofluorescence of photoactivatable NMN and injection of fluorescence-labeled NMN. In human subjects with diabetes, the levels of SIRT1 and Claudin-1 were correlated with proteinuria levels. These results suggest that Sirt1 in PTs protects against albuminuria in diabetes by maintaining NMN concentrations around glomeruli, thus influencing podocyte function.

Indexed as

AdultAgedAged, 80 and overAlbuminuriaAnimalsClaudin-1Diabetes MellitusDiabetes Mellitus, ExperimentalEpigenesis, GeneticFemaleGene Expression RegulationHumansKidney Tubules, ProximalMaleMiceMice, Inbred C57BLClaudin-1CLDN1 protein, humanCldn1 protein, mouseNicotinamide MononucleotideSIRT1 protein, humanSirt1 protein, mouseSirtuin 1

Identifiers

PMID24141423
PMCPMC4041199
OpenAlexW2046385403

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.