Evidence map›Paper›PMID 30791484›Full record

ArticleNutrients2019

Daidzein Intake Is Associated with Equol Producing Status through an Increase in the Intestinal Bacteria Responsible for Equol Production.

Chikara Iino, Tadashi Shimoyama, Kaori Iino, Yoshihito Yokoyama, Daisuke Chinda, Hirotake Sakuraba, Shinsaku Fukuda, Shigeyuki Nakaji

Open access · goldAbstract readComparative Study
In one paragraph

Article in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
7.8field-weighted citation impact, top 2% 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

44 citing papers in PubMed, 95 citations in OpenAlex.

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  20. TwoBiology · 2022
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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 1 institution in 1 country.

Chikara IinoDepartment of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. chikaran0601@yahoo.co.jp.
Tadashi ShimoyamaAomori General Health Examination Center, Aomori 030-0962, Japan. tsimo-hki@umin.ac.jp.
Kaori IinoDepartment of Obstetrics and Gynecology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. iino-ka@hirosaki-u.ac.jp.
Yoshihito YokoyamaDepartment of Obstetrics and Gynecology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. yokoyama@hirosaki-u.ac.jp.
Daisuke ChindaDepartment of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. donkeyra3@yahoo.co.jp.
Hirotake SakurabaDepartment of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. hirotake@hirosaki-u.ac.jp.
Shinsaku FukudaDepartment of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. sfukuda@hirosaki-u.ac.jp.
Shigeyuki NakajiDepartment of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan. nakaji@hirosaki-u.ac.jp.
Hirosaki University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Equol is a metabolite of isoflavone daidzein and has an affinity to estrogen receptors. Although equol is produced by intestinal bacteria, the association between the status of equol production and the gut microbiota has not been fully investigated. The aim of this study was to compare the intestinal bacteria responsible for equol production in gut microbiota between equol producer and non-producer subjects regarding the intake of daidzein. A total of 1044 adult subjects who participated in a health survey in Hirosaki city were examined. The concentration of equol in urine was measured by high-performance liquid chromatography. The relative abundances of 8 bacterial species responsible for equol production in the gut microbiota was assessed using 16S rRNA amplification. There were 458 subjects identified as equol producers. The proportion of equol production status and the intake of daidzein increased with age. Daily intake of daidzein was larger in equol-producer. The intestinal bacteria, which convert daidzein to equol were present in both equol producers and non-producers. However, the relative abundance and the prevalence of

Indexed as

AdultAgedBacteriaEquolFemaleGastrointestinal MicrobiomeHumansIsoflavonesMaleMiddle AgedPhytoestrogensRNA, Ribosomal, 16SdaidzeinEquolIsoflavonesPhytoestrogensRNA, Ribosomal, 16SAsaccharobacter celatusdaidzeinequolgut microbiotaSlackia isoflavoniconvertens

Identifiers

PMID30791484
PMCPMC6412946
OpenAlexW2918075623

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.