Evidence map›Paper›PMID 24709940›Full record

ArticlePloS one2014

Ruminal Prevotella spp. may play an important role in the conversion of plant lignans into human health beneficial antioxidants.

Ana L B Schogor, Sharon A Huws, Geraldo T D Santos, Nigel D Scollan, Barbara D Hauck, Ana L Winters, Eun J Kim, Hélène V Petit

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 14% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Genetic Variation and Hot Flashes: A Systematic Review.The Journal of clinical endocrinology and metabolism · 2020
    Pooled it
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  19. Microbial monotherapy withExpert review of neurotherapeutics · 2019
    Review
  20. Gut Microbiota Interventions WithFrontiers in immunology · 2019
    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

8 authors at 5 institutions in 4 countries.

Ana L B SchogorInstitute of Biological, Environmental, and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, United Kingdom.
Sharon A HuwsInstitute of Biological, Environmental, and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, United Kingdom.
Geraldo T D SantosDepartamento de Zootecnia, Universidade Estadual de Maringá, Maringá, PR, Brazil.
Nigel D ScollanInstitute of Biological, Environmental, and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, United Kingdom.
Barbara D HauckInstitute of Biological, Environmental, and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, United Kingdom.
Ana L WintersInstitute of Biological, Environmental, and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth, United Kingdom.
Eun J KimDepartment of Animal Science, Kyungpook National University, Sangju, Korea.
Hélène V PetitDairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada.
Aberystwyth University · GBInstitute of Biological, Environmental and Rural Sciences · GBAgriculture and Agri-Food Canada · CAKyungpook National University · KRUniversidade Estadual de Maringá · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Secoisolariciresinol diglucoside (SDG), the most abundant lignan in flaxseed, is metabolized by the ruminal microbiota into enterolignans, which are strong antioxidants. Enterolactone (EL), the main mammalian enterolignan produced in the rumen, is transferred into physiological fluids, with potentially human health benefits with respect to menopausal symptoms, hormone-dependent cancers, cardiovascular diseases, osteoporosis and diabetes. However, no information exists to our knowledge on bacterial taxa that play a role in converting plant lignans into EL in ruminants. In order to investigate this, eight rumen cannulated cows were used in a double 4 × 4 Latin square design and fed with four treatments: control with no flax meal (FM), or 5%, 10% and 15% FM (on a dry matter basis). Concentration of EL in the rumen increased linearly with increasing FM inclusion. Total rumen bacterial 16S rRNA concentration obtained using Q-PCR did not differ among treatments. PCR-T-RFLP based dendrograms revealed no global clustering based on diet indicating between animal variation. PCR-DGGE showed a clustering by diet effect within four cows that had similar basal ruminal microbiota. DNA extracted from bands present following feeding 15% FM and absent with no FM supplementation were sequenced and it showed that many genera, in particular Prevotella spp., contributed to the metabolism of lignans. A subsequent in vitro study using selected pure cultures of ruminal bacteria incubated with SDG indicated that 11 ruminal bacteria were able to convert SDG into secoisolariciresinol (SECO), with Prevotella spp. being the main converters. These data suggest that Prevotella spp. is one genus playing an important role in the conversion of plant lignans to human health beneficial antioxidants in the rumen.

Indexed as

PrevotellaAnimalsAntioxidantsCattleFemaleHumansLignansPolymorphism, Restriction Fragment LengthReal-Time Polymerase Chain ReactionRNA, Ribosomal, 16SStomach, RuminantAntioxidantsLignansRNA, Ribosomal, 16S

Identifiers

PMID24709940
PMCPMC3977842
OpenAlexW2006066120

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.