Evidence map›Paper›PMID 22118569›Full record

Trial reportNutrition journal2011

Bioactive oat β-glucan reduces LDL cholesterol in Caucasians and non-Caucasians.

Thomas M S Wolever, Alison L Gibbs, Jennie Brand-Miller, Alison M Duncan, Valerie Hart, Benoît Lamarche, Susan M Tosh, Ruedi Duss

2 registry-linked trialsOpen access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Nutrition journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 10% 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.

NCT00981981 phase2completednot on this map

Effect of Varying Dose and Molecular Weight on the Serum LDL-cholesterol-lowering Properties of Oat β-glucan

TypeinterventionalSponsorGlycemic Index Laboratories, IncRan2008 to 2009Enrolled367ConditionsHypercholesterolemiaArmsWheat bran, 3g high MW, 4g medium MW, 3g medium MW, 4g low MW
NCT02189200 nacompletednot on this mapstarted 2012, after this paper: background citation

Effect of Nutritional Counseling Associated With the Ingestion of Oat Bran in Hypercholesterolemic Subjects in Secondary Prevention

TypeinterventionalSponsorUniversidade Federal do Rio de JaneiroRan2012 to 2014Enrolled132ConditionsDietary ModificationArmsoat bran - 40g, refined rice flour- 40g
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Dietary Fiber: An Opportunity for a Global Control of Hyperlipidemia.Oxidative medicine and cellular longevity · 2021
    Review
  7. Review
  8. Lipid Lowering with Soluble Dietary Fiber.Current atherosclerosis reports · 2016
    Review
  9. Article
  10. Article
  11. Article
  12. Review
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

8 authors at 6 institutions in 3 countries.

Thomas M S WoleverGlycemic Index Laboratories, Inc,, Toronto, Ontario, Canada. thomas.wolever@utoronto.ca
Alison L Gibbs
Jennie Brand-Miller
Alison M Duncan
Valerie Hart
Benoît Lamarche
Susan M Tosh
Ruedi Duss
University of Guelph · CAGlycemic Index Laboratories · CAReading Museum · GBUniversité Laval · CAUniversity of Sydney · AUUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is increasing global acceptance that viscous soluble fibers lower serum LDL cholesterol (LDL-C), but most evidence for this comes from studies in Caucasians. To see if oat β-glucan lowers LDL-C in Caucasians and non-Caucasians we conducted a post-hoc analysis of the results of a randomized, controlled, double-blind, multi-center clinical trial whose primary aim was to determine if molecular-weight (MW) influenced the LDL-C-lowering effect of oat β-glucan.

resultsCaucasian and non-Caucasian subjects with LDL-C-C ≥ 3.0 and ≤ 5.0 mmol/L (n = 786 screened, n = 400 ineligible, n = 19 refused, n = 367 randomized, n = 345 completed, n = 1 excluded for missing ethnicity) were randomly assigned to consume cereal containing wheat-fiber (Control, n = 74:13 Caucasian:non-Caucasian) or 3 g high-MW (3H, 2,250,000 g/mol, n = 67:19), 4 g medium-MW (4 M, 850,000 g/mol, n = 50:17), 3 g medium-MW (3M, 530,000 g/mol, n = 54:9) or 4 g low-MW (4 L, 210,000 g/mol, n = 51:12) oat β-glucan daily for 4 weeks. LDL-C after 4 weeks was influenced by baseline LDL-C (p < 0.001) and treatment (p = 0.003), but not ethnicity (p = 0.74). In all subjects, compared to control, 3 H, 4 M and 3 M reduced LDL-C significantly by 4.8 to 6.5%, but 4 L had no effect. Compared to control, the bioactive oat β-glucan treatments (3H, 4M and 3M) reduced LDL-C by a combined mean (95% CI) of 0.18 (0.06, 0.31) mmol/L (4.8%, n = 171, p = 0.004) in Caucasians, a value not significantly different from the 0.37 (0.09, 0.65) mmol/L (10.3%, n = 45, p = 0.008) reduction in non-Caucasians.

conclusionWe conclude that oat β-glucan reduces LDL-C in both Caucasians and non-Caucasians; there was insufficient power to determine if the magnitude of LDL-C-lowering differed by ethnicity.

trial registrationClinicalTrials.gov: NCT00981981.

Indexed as

White PeopleAdultAvenabeta-GlucansCholesterol, LDLDietary FiberDouble-Blind MethodFemaleHumansHypercholesterolemiaMaleMiddle AgedTriticumbeta-glucan, (1-3)(1-4)-beta-GlucansCholesterol, LDLDietary Fiber

Identifiers

PMID22118569
PMCPMC3252259
OpenAlexW2115020183

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.