Evidence map›Paper›PMID 18650406›Full record

ArticleClinical journal of the American Society of Nephrology : CJASN2008

Determinants of 24-hour urinary oxalate excretion.

Eric N Taylor, Gary C Curhan

Abstract read
In one paragraph

Article in Clinical journal of the American Society of Nephrology : CJASN, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 2 pooled it
6.6field-weighted citation impact, top 3% 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

73 citing papers in PubMed, 2 syntheses or guidelines pooled it, 169 citations in OpenAlex.

  1. Guideline
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  4. Oxalic acid and diacylglycerol 36:3 are cross-species markers of sleep debt.Proceedings of the National Academy of Sciences of the United States of America · 2015
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13 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Eric N TaylorRenal Division and Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. entaylor@partners.org
Gary C Curhan
Brigham and Women's Hospital · US

Funding

Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ELIASSEN, A. HEATHER · 2000 to 2019
$77.8M
Validity of Diet and Activity Measures in WomenP01CA055075 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SPIEGELMAN, DONNA L · 1991 to 2009
$41.8M
Risk Factors for Breast Cancer in Younger NursesR01CA050385 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ELIASSEN, A. HEATHER, WILLETT, WALTER C. · 1989 to 2019
$32.3M
The Pathobiology of NephrolithiasisP01DK070756 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI CURHAN, GARY C. · 2007 to 2011
$8.4M
Risk Factors for Recurrent NephrolithiasisR01DK059583 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI CURHAN, GARY C. · 2002 to 2006
$2.6M
Novel Risk Factors for Kidney Stone FormationK08DK073381 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI TAYLOR, ERIC N · 2005 to 2008
$536k
NCI NIH HHS CA50385NCI NIH HHS CA55075NCI NIH HHS CA87969NCI NIH HHS P01 CA055075NCI NIH HHS P01 CA087969NCI NIH HHS R01 CA050385NIDDK NIH HHS DK59583NIDDK NIH HHS DK70756NIDDK NIH HHS DK73381NIDDK NIH HHS K08 DK073381NIDDK NIH HHS P01 DK070756NIDDK NIH HHS R01 DK059583
6 · The paper itself

Abstract

BACKGROUND AND

objectivesHigher levels of urinary oxalate substantially increase the risk of calcium oxalate kidney stones. However, the determinants of urinary oxalate excretion are unclear. The objective was to examine the impact of dietary factors, age, body size, diabetes, and urinary factors on 24-h urinary oxalate. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS: We conducted a cross-sectional study of 3348 stone forming and non-stone-forming participants in the Health Professionals Follow-up Study (men), the Nurses' Health Study (older women), and the Nurses' Health Study II (younger women).

resultsMedian urinary oxalate was 39 mg/d in men, 27 mg/d in older women, and 26 mg/d in younger women. Participants in the highest quartile of dietary oxalate excreted 1.7 mg/d more urinary oxalate than participants in the lowest quartile (P trend 0.001). The relation between dietary and urinary oxalate was similar in individuals with and without nephrolithiasis. Participants consuming 1000 mg/d or more of vitamin C excreted 6.8 mg/d more urinary oxalate than participants consuming <90 mg/d (P trend < 0.001). Body mass index, total fructose intake, and 24-h urinary potassium, magnesium, and phosphorus levels also were positively associated with urinary oxalate. Calcium intake and age were inversely associated with urinary oxalate. After adjustment for body size, participants with diabetes excreted 2.0 mg/d more urinary oxalate than those without diabetes (P < 0.01).

conclusionsThe impact of dietary oxalate on urinary oxalate appears to be small. Further investigation of factors influencing urinary oxalate may lead to new approaches to prevent calcium kidney stones.

Indexed as

Body WeightCircadian RhythmAdultAgedAge FactorsAscorbic AcidBody Mass IndexCross-Sectional StudiesDiabetes ComplicationsDietDietary SupplementsFemaleFructoseHumansKidney CalculiMagnesiumAscorbic AcidFructoseMagnesiumOxalatesPhosphorusPotassium

Identifiers

PMID18650406
PMCPMC2518810
OpenAlexW2102411545

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.