Evidence map›Paper›PMID 16963248›Full record

ArticleThe Journal of nutritional biochemistry2007

Dietary isoflavones differentially induce gene expression changes in lymphocytes from postmenopausal women who form equol as compared with those who do not.

Mihai D Niculescu, Elena A Pop, Leslie M Fischer, Steven H Zeisel

Open access · greenAbstract readControlled Clinical Trial
In one paragraph

Article in The Journal of nutritional biochemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 71 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Review
  8. Targeted Approaches for In Situ Gut Microbiome Manipulation.JPEN. Journal of parenteral and enteral nutrition · 2020
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Does equol production determine soy endocrine effects?European journal of nutrition · 2012
    Review
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Mihai D NiculescuDepartment of Nutrition, School of Public Health and School of Medicine, University of North Carolina at Chapel Hill, NC 27599-7461, USA.
Elena A Pop
Leslie M Fischer
Steven H Zeisel
University of North Carolina at Chapel Hill · US

Funding

Zonisamide in Patients with Neuropathic Pain Associated with Diabetic NeuropathyM01RR000046 · NCRR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JOY, MELANIE S · 1985 to 2008
$38.5M
UNC-CH CENTER FOR ENVIRONMENTAL HEALTH &SUSCEPTIBILITYP30ES010126 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Melissa A. Troester · 2001 to 2026
$36.3M
UNIV OF NORTH CAROLINA CLINICAL NUTRITION RESEARCH UNITP30DK056350 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SUSAN M. SMITH · 1999 to 2026
$31.6M
PHASE I SINGLE AND MULTIPLE-DOSE SAFETY. PHARMACOKINETIC. AND EFFICACY-261075035N01CN075035 · CN · UNIVERSITY OF KANSAS MEDICAL CENTER · 1997 to 2005
–
NCI NIH HHS CN75035NCRR NIH HHS M01 RR000046NCRR NIH HHS RR00046NIDDK NIH HHS DK56350NIDDK NIH HHS P30 DK056350NIEHS NIH HHS ES10126NIEHS NIH HHS P30 ES010126
6 · The paper itself

Abstract

Human and animal studies suggest that dietary soy isoflavones reduce cancer risk, ameliorate postmenopausal syndrome and decrease bone resorption in postmenopausal women. The capacity to form the metabolite equol from daidzein is suggested as an important modulator of response to isoflavones; this capacity depends on gut colonization with appropriate bacteria. We administered a dietary supplement containing high-dose purified soy isoflavones (genistein, 558 mg/day; daidzein, 296 mg/day; and glycitein, 44 mg/day) to 30 postmenopausal women for 84 days and collected peripheral lymphocytes at timed intervals. Using microarray analysis, we determined whether changes in gene expression associated with this treatment support existing hypotheses as to isoflavones' mechanisms of action. Expression of a large number of genes was altered by isoflavone treatment, including induction of genes associated with cyclic adenosine 3',5'-monophosphate (cAMP) signaling and cell differentiation and decreased expression of genes associated with cyclin-dependent kinase activity and cell division. We report that isoflavone treatment in subjects who have the capacity to produce equol differentially affects gene expression as compared with nonproducers, supporting the plausibility of the importance of equol production. In general, isoflavones had a stronger effect on some putative estrogen-responsive genes in equol producers than in nonproducers. Our study suggests that, in humans, isoflavone changes are related to increased cell differentiation, increased cAMP signaling and G-protein-coupled protein metabolism and increased steroid hormone receptor activity and have some estrogen agonist effects; equol-production status is likely to be an important modulator of responses to isoflavones.

Indexed as

Administration, OralEquolFemaleGene Expression RegulationHumansIsoflavonesLymphocytesOligonucleotide Array Sequence AnalysisPostmenopauseRNASoy Foods4',7-dihydroxy-3,4-dihydroisoflavoneEquolIsoflavonesRNA

Identifiers

PMID16963248
PMCPMC2441946
OpenAlexW1999202797

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.