Evidence map›Paper›PMID 21559041›Full record

ArticleEuropean journal of clinical nutrition2011

Analysis of the urinary glucose-[¹⁵N, ¹⁵N]-ureide content in the study of the lactose-[¹⁵N, ¹⁵N]-ureide metabolism in healthy humans.

V De Preter, E Houben, K Windey, A Luypaerts, K Verbeke

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in European journal of clinical nutrition, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.2field-weighted citation impact, top 37% 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

0 citing papers in PubMed, 2 citations in OpenAlex.

No citing paper in PubMed yet.

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 1 institution in 1 country.

V De PreterDepartment of Gastrointestinal Research and Leuven Food Science and Nutrition Research Centre, University Hospital Gasthuisberg, KU Leuven, Leuven, Belgium.
E Houben
K Windey
A Luypaerts
K Verbeke
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesLactose-[(15)N, (15)N]-ureide is used to study the fate of the colonic urea-nitrogen metabolism. During the passage through the gastrointestinal tract, lactose ureide is hydrolysed to glucose ureide, which is absorbed to a limited extent from the small intestine and is excreted urinarily. In the present study, a procedure has been developed to quantify the urinary excretion of glucose-[(15)N, (15)N]-ureide. In addition, urine and faecal samples obtained during a dietary intervention study with the prebiotic lactulose were retrospectively analysed. SUBJECTS/

methodsThe glucose ureide and lactose ureide content was measured by GC-MS in 19 healthy volunteers. After consumption of a standard test meal containing 75 mg lactose-[(15)N, (15)N]-ureide, six healthy volunteers performed a fractionated 24 h urine collection to investigate the urinary excretion of glucose-[(15)N, (15)N]-ureide. In 13 volunteers, the effect of lactulose administration on the urinary excretion of glucose-[(15)N, (15)N]-ureide was analysed.

resultsThe urinary excretion of glucose-[(15)N, (15)N]-ureide reached its maximum level in the 3-6 h urine collection and decreased in the 6-9 h urine. The label was still detectable in the 9-24 h urine collection. The cumulative excretion of (15)N-labelled glucose ureide after 24 h amounted 12.91%. No significant differences in glucose-[(15)N, (15)N]-ureide excretion were found in either of the urine fractions after administration of lactulose, compared with baseline. In none of the urine samples lactose-[(15)N, (15)N]-ureide was detected.

conclusionsIn conclusion, the results obtained in the present study indicated that the percentage dose glucose-[(15)N, (15)N]-ureide recovered in urine is rather constant and not influenced by the presence of lactulose.

Indexed as

AdultDietFecesFemaleGas Chromatography-Mass SpectrometryGlucoseHumansLactoseLactuloseMalePrebioticsRetrospective StudiesUreaUrinalysisYoung AdultGlucoseglucosylureaLactoselactose ureideLactulosePrebioticsUrea

Identifiers

PMID21559041
OpenAlexW2084424187

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.