Evidence map›Paper›PMID 25320354›Full record

ArticleAmerican journal of physiology. Renal physiology2014

Diabetic nephropathy is resistant to oral L-arginine or L-citrulline supplementation.

Hanning You, Ting Gao, Timothy K Cooper, Sidney M Morris, Alaa S Awad

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

26 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Article
  3. Diabetic nephropathy: Role of nitric oxide.Nitric oxide : biology and chemistry · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Iron Overload Damages the Endothelial MitochondriaOxidative medicine and cellular longevity · 2019
    Article
  17. Review
  18. Distinct roles of arginases 1 and 2 in diabetic nephropathy.American journal of physiology. Renal physiology · 2017
    Article
  19. Article
  20. Arginase-2 mediates renal ischemia-reperfusion injury.American journal of physiology. Renal physiology · 2017
    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

5 authors at 2 institutions in 1 country.

Hanning YouDivision of Nephrology, Department of Medicine, Penn State University College of Medicine, Hershey, Pennsylvania;
Ting GaoDivision of Nephrology, Department of Medicine, Penn State University College of Medicine, Hershey, Pennsylvania;
Timothy K CooperDepartment of Comparative Medicine, Penn State University College of Medicine, Hershey, Pennsylvania; and.
Sidney M MorrisDepartment of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania.
Alaa S AwadDivision of Nephrology, Department of Medicine, Penn State University College of Medicine, Hershey, Pennsylvania; asa17@psu.edu.
Penn State Milton S. Hershey Medical Center · USUniversity of Pittsburgh · US

Funding

Role of Arginase in Diabetic NephropathyR01DK094930 · NIDDK · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI AWAD, ALAA S · 2012 to 2016
$1.9M
SIGNAL TRANSDUCTION--HEPATIC SINUSOIDAL XANTHINE OXIDASEF32DK009493 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI BASS, KIRSTEN N · 1996 to 1997
–
NIDDK NIH HHS DK-094930NIDDK NIH HHS DK-094930S1NIDDK NIH HHS R01 DK094930
6 · The paper itself

Abstract

Our recent publication showed that pharmacological blockade of arginases confers kidney protection in diabetic nephropathy via a nitric oxide (NO) synthase (NOS)3-dependent mechanism. Arginase competes with endothelial NOS (eNOS) for the common substrate L-arginine. Lack of L-arginine results in reduced NO production and eNOS uncoupling, which lead to endothelial dysfunction. Therefore, we hypothesized that L-arginine or L-citrulline supplementation would ameliorate diabetic nephropathy. DBA mice injected with multiple low doses of vehicle or streptozotocin (50 mg/kg ip for 5 days) were provided drinking water with or without L-arginine (1.5%, 6.05 g·kg(-1)·day(-1)) or L-citrulline (1.66%, 5.73 g·kg(-1)·day(-1)) for 9 wk. Nonsupplemented diabetic mice showed significant increases in albuminuria, blood urea nitrogen, glomerular histopathological changes, kidney macrophage recruitment, kidney TNF-α and fibronectin mRNA expression, kidney arginase activity, kidney arginase-2 protein expression, and urinary oxidative stress along with a significant reduction of nephrin and eNOS protein expression and kidney nitrite + nitrate compared with normal mice after 9 wk of diabetes. Surprisingly, L-arginine or L-citrulline supplementation in diabetic mice did not affect any of these parameters despite greatly increasing kidney and plasma arginine levels. These findings demonstrate that chronic L-arginine or L-citrulline supplementation does not prevent or reduce renal injury in a model of type 1 diabetes.

Indexed as

Dietary SupplementsAmino AcidsAnimalsArginaseArginineBlood PressureCitrullineDiabetes Mellitus, ExperimentalDiabetic NephropathiesFibronectinsKidneyMaleMembrane ProteinsMiceMice, Inbred DBANitratesAmino AcidsArginaseArginineCitrullineFibronectinsMembrane ProteinsnephrinNitratesNitric Oxide Synthase Type IIINitritesTumor Necrosis Factor-alphadiabetic nephropathyl-argininel-citrullineoral supplementation

Identifiers

PMID25320354
PMCPMC4254967
OpenAlexW1999853237

What Socratic 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 Socratic graph.