Evidence map›Paper›PMID 22129965›Full record

ArticleAmerican journal of physiology. Renal physiology2012

De novo expression of podocyte proteins in parietal epithelial cells in experimental aging nephropathy.

Jiong Zhang, Kim M Hansen, Jeffrey W Pippin, Alice M Chang, Yoshinori Taniguchi, Ronald D Krofft, Scott G Pickering, Zhi-Hong Liu, Christine K Abrass, Stuart J Shankland

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Collapsing Glomerulopathy.Advances in kidney disease and health · 2024
    Review
  3. Mice with aAmerican journal of physiology. Renal physiology · 2024
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  6. Review
  7. Roles of SIRT6 in kidney disease: a novel therapeutic target.Cellular and molecular life sciences : CMLS · 2021
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The transcription factor Dach1 is essential for podocyte function.Journal of cellular and molecular medicine · 2018
    Article
  16. Review
  17. Article
  18. Can podocytes be regenerated in adults?Current opinion in nephrology and hypertension · 2017
    Review
  19. Article
  20. 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

10 authors at 3 institutions in 2 countries.

Jiong ZhangDiv. of Nephrology, Dept. of Medicine, Univ. of Washington School of Medicine, Seattle, WA 98195-6521, USA.
Kim M Hansen
Jeffrey W Pippin
Alice M Chang
Yoshinori Taniguchi
Ronald D Krofft
Scott G Pickering
Zhi-Hong Liu
Christine K Abrass
Stuart J Shankland
University of Washington · USNanjing General Hospital of Nanjing Military Command · CNVA Puget Sound Health Care System · US

Funding

Vector and Transgenic Mouse CoreP30DK017047 · NIDDK · UNIVERSITY OF WASHINGTON · PI Sakeneh Zraika · 1986 to 2026
$41.4M
CELL CYCLE PROTEINS AND GLOMERULAR APOPTOSISR01DK056799 · NIDDK · UNIVERSITY OF WASHINGTON · PI SHANKLAND, STUART JAMES · 2000 to 2014
$3.6M
Molecular Mechanisms of Mesangial SclerosisR01DK068539 · NIDDK · UNIVERSITY OF WASHINGTON · PI ABRASS, CHRISTINE KREGER · 2006 to 2009
$1.3M
New Thoughts on Parietal Epithelial CellsR21DK081835 · NIDDK · UNIVERSITY OF WASHINGTON · PI SHANKLAND, STUART JAMES · 2009 to 2010
$429k
NIDDK NIH HHS P30 DK017047NIDDK NIH HHS R01 DK056799NIDDK NIH HHS R01DK056799NIDDK NIH HHS R01 DK068539NIDDK NIH HHS R01DK068539NIDDK NIH HHS R21 DK081835NIDDK NIH HHS R21DK081835
6 · The paper itself

Abstract

A progressive decrease in podocyte number underlies the development of glomerulosclerosis and reduced kidney function in aging nephropathy. Recent data suggest that under certain disease states, parietal epithelial cells (PECs) begin to express proteins considered specific to podocytes. To determine whether this phenomenon increases in aging kidneys, 4-, 12-, and 20-mo ad libitum-fed and 20-mo calorie-restricted (CR) rats were studied. Single and double immunostaining were performed with antibodies to the PEC protein paired box gene 2 (PAX2) and tight junction protein claudin-1, the podocyte-specific protein Wilms' tumor 1 (WT-1), and the proliferating cell protein (Ki-67). ImageJ software measured Bowman's basement membrane (BBM) length and glomerular tuft area in individual glomeruli from each animal to assess glomerular size. The results showed that in aged ad libitum rats, the decrease in number of podocytes/glomerular tuft area was accompanied by an increase in the number of PECs/BBM length at 12 and 20 mo (P < 0.01 vs. 4 mo). The increase in PEC number was due to proliferation (increase in PAX2/Ki-67 double-positive cells). Aging was accompanied by a progressive increase in the number of glomerular cells double staining for PAX2 and WT-1. In contrast, the control 20-mo-old CR rats had no increase in glomerular size, and podocyte and PEC number were not altered. These results suggest that although the number of PECs and PECs expressing podocyte proteins increase in aging nephropathy, they are likely not sufficient to compensate for the decrease in podocyte number.

Indexed as

AgingAnimalsCell CountCell ProliferationClaudin-1Ki-67 AntigenKidney DiseasesKidney GlomerulusMaleMembrane ProteinsPAX2 Transcription FactorPodocytesRatsRats, Inbred F344WT1 ProteinsClaudin-1Cldn1 protein, ratKi-67 AntigenMembrane ProteinsPAX2 protein, ratPAX2 Transcription FactorWT1 Proteins

Identifiers

PMID22129965
PMCPMC3353646
OpenAlexW2160134717

What OpenQuestion holds

Textmetadata
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.