Evidence map›Paper›PMID 21933451›Full record

ArticleClinical proteomics2011

Morphological changes in diabetic kidney are associated with increased O-GlcNAcylation of cytoskeletal proteins including α-actinin 4.

Yoshihiro Akimoto, Yuri Miura, Tosifusa Toda, Margreet A Wolfert, Lance Wells, Geert-Jan Boons, Gerald W Hart, Tamao Endo, Hayato Kawakami

Open access · goldAbstract read
In one paragraph

Article in Clinical proteomics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

17 citing papers in PubMed, 39 citations in OpenAlex.

  1. Post‑translational modifications in diabetic kidney disease (Review).International journal of molecular medicine · 2026
    Review
  2. Article
  3. Glycosylation in kidney diseases.Precision clinical medicine · 2025
    Review
  4. Immunohistochemical Study onActa histochemica et cytochemica · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. American journal of physiology. Renal physiology · 2019
    Article
  9. Vitamin D suppresses cellular pathways of diabetes complication in liver.Iranian journal of basic medical sciences · 2019
    Article
  10. Article
  11. Nutrient regulation of signaling and transcription.The Journal of biological chemistry · 2019
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Post-translational modification and regulation of actin.Current opinion in cell biology · 2013
    Review
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Yoshihiro AkimotoDepartment of Anatomy, Kyorin University School of Medicine, Mitaka, Tokyo 181-8611, Japan. yakimoto@ks.kyorin-u.ac.jp.
Yuri Miura
Tosifusa Toda
Margreet A Wolfert
Lance Wells
Geert-Jan Boons
Gerald W Hart
Tamao Endo
Hayato Kawakami
Tokyo Metropolitan Institute of Gerontology · JPUniversity of Georgia · USKyorin University · JPJohns Hopkins Medicine · US

Funding

JHU-UMD Diabetes Research CenterP30DK079637 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI WONDISFORD, FREDRIC E. · 2013 to 2017
$9.7M
NIDDK NIH HHS P30 DK079637
6 · The paper itself

Abstract

purposeThe objective of the present study is to identify proteins that change in the extent of the modification with O-linked N-acetylglucosamine (O-GlcNAcylation) in the kidney from diabetic model Goto-Kakizaki (GK) rats, and to discuss the relation between O-GlcNAcylation and the pathological condition in diabetes.

methodsO-GlcNAcylated proteins were identified by two-dimensional gel electrophoresis, immunoblotting and peptide mass fingerprinting. The level of O-GlcNAcylation of these proteins was examined by immunoprecipitation, immunoblotting and in situ Proximity Ligation Assay (PLA).

resultsO-GlcNAcylated proteins that changed significantly in the degree of O-GlcNAcylation were identified as cytoskeletal proteins (α-actin, α-tubulin, α-actinin 4, myosin) and mitochondrial proteins (ATP synthase β, pyruvate carboxylase). The extent of O-GlcNAcylation of the above proteins increased in the diabetic kidney. Immunofluorescence and in situ PLA studies revealed that the levels of O-GlcNAcylation of actin, α-actinin 4 and myosin were significantly increased in the glomerulus and the proximal tubule of the diabetic kidney. Immunoelectron microscopy revealed that immunolabeling of α-actinin 4 is disturbed and increased in the foot process of podocytes of glomerulus and in the microvilli of proximal tubules.

conclusionThese results suggest that changes in the O-GlcNAcylation of cytoskeletal proteins are closely associated with the morphological changes in the podocyte foot processes in the glomerulus and in microvilli of proximal tubules in the diabetic kidney. This is the first report to show that α-actinin 4 is O-GlcNAcylated. α-Actinin 4 will be a good marker protein to examine the relation between O-GlcNAcylation and diabetic nephropathy.

Identifiers

PMID21933451
PMCPMC3224550
OpenAlexW2008854674

What Socratic holds

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LicenceCC BY
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Registered trials

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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 Socratic graph.