Evidence map›Paper›PMID 21123489›Full record

ArticleAmerican journal of physiology. Renal physiology2011

Evidence for net renal tubule oxalate secretion in patients with calcium kidney stones.

Kristin J Bergsland, Anna L Zisman, John R Asplin, Elaine M Worcester, Fredric L Coe

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Review
  6. Future treatments for hyperoxaluria.Current opinion in urology · 2020
    Review
  7. Review
  8. Evidence for disordered acid-base handling in calcium stone-forming patients.American journal of physiology. Renal physiology · 2020
    Article
  9. Article
  10. Immunity, microbiota and kidney disease.Nature reviews. Nephrology · 2019
    Review
  11. Dietary oxalate and kidney stone formation.American journal of physiology. Renal physiology · 2019
    Review
  12. Mechanism for higher urine pH in normal women compared with men.American journal of physiology. Renal physiology · 2018
    Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Body fat content and distribution and urinary risk factors for nephrolithiasis.Clinical journal of the American Society of Nephrology : CJASN · 2014
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Kristin J BergslandDepartment of Medicine, Nephrology Section, The University of Chicago, Chicago, IL 60637, USA. kbergsland@uchicago.edu
Anna L Zisman
John R Asplin
Elaine M Worcester
Fredric L Coe
University of Chicago · USLink Foundation · US

Funding

TRANSLATIONAL RESEARCH UNIVERSITY OF CHICAGO: CLINICAL TRIALSUL1RR024999 · NCRR · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2007 to 2011
$25.3M
STONE FORMATION IN GENETIC HYPERCALCIURIAP01DK056788 · NIDDK · UNIVERSITY OF CHICAGO · PI WILLIAMS, JAMES C · 2000 to 2021
$22.5M
NCRR NIH HHS UL1 RR024999NIDDK NIH HHS P01 DK056788NIDDK NIH HHS P01 DK56788
6 · The paper itself

Abstract

Little is known about the renal handling of oxalate in patients with idiopathic hypercalciuria (IH). To explore the role of tubular oxalate handling in IH and to evaluate whether differences exist between IH and normal controls, we studied 19 IH subjects, 8 normal subjects, and 2 bariatric stone formers (BSF) during a 1-day General Clinical Research Center protocol utilizing a low-oxalate diet. Urine and blood samples were collected at 30- to 60-min intervals while subjects were fasting and after they ate three meals providing known amounts of calcium, phosphorus, sodium, protein, oxalate, and calories. Plasma oxalate concentrations and oxalate-filtered loads were similar between patients (includes IH and BSF) and controls in both the fasting and fed states. Urinary oxalate excretion was significantly higher in patients vs. controls regardless of feeding state. Fractional excretion of oxalate (FEOx) was >1, suggesting tubular secretion of oxalate, in 6 of 19 IH and both BSF, compared with none of the controls (P < 0.00001). Adjusted for water extraction along the nephron, urine oxalate rose more rapidly among patients than normal subjects with increases in plasma oxalate. Our findings identify tubular secretion of oxalate as a key mediator of hyperoxaluria in calcium stone formers, potentially as a means of maintaining plasma oxalate in a tight range.

Indexed as

AdultCalciumDietFemaleHumansHypercalciuriaKidney CalculiKidney TubulesMaleMiddle AgedOxalatesCalciumOxalates

Identifiers

PMID21123489
PMCPMC3043999
OpenAlexW2136244398

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.