Evidence map›Paper›PMID 24951101›Full record

SynthesisMaturitas2014

Effects of isoflavones and amino acid therapies for hot flashes and co-occurring symptoms during the menopausal transition and early postmenopause: a systematic review.

Annette J Thomas, Rita Ismail, Lisa Taylor-Swanson, Lori Cray, Janet G Schnall, Ellen Sullivan Mitchell, Nancy Fugate Woods

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in Maturitas, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 5 pooled it
4.9field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 5 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Atencion primaria · 2018
    Guideline
  4. Survivorship, Version 2.2017, NCCN Clinical Practice Guidelines in Oncology.Journal of the National Comprehensive Cancer Network : JNCCN · 2017
    Guideline
  5. Pooled it
  6. Trial
  7. Trial
  8. Trial
  9. Article
  10. Article
  11. Article
  12. Heart Failure in Menopause: Treatment and New Approaches.International journal of molecular sciences · 2022
    Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. A Nutraceutical Approach to Menopausal Complaints.Medicina (Kaunas, Lithuania) · 2019
    Review
  19. Review
  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

7 authors at 2 institutions in 1 country.

Annette J ThomasUniversity of Washington School of Nursing, United States. Electronic address: ajthomas@uw.edu.
Rita IsmailUniversity of Washington School of Nursing, United States and Ministry of Health, Republic of Indonesia, United States.
Lisa Taylor-SwansonUniversity of Washington School of Nursing, United States.
Lori CrayCollege of Nursing, Seattle University, United States.
Janet G SchnallHealth Sciences Library, University of Washington, United States.
Ellen Sullivan MitchellFamily and Child Nursing, University of Washington, United States.
Nancy Fugate WoodsBiobehavioral Nursing and Health Systems, University of Washington, United States.
University of Washington · USSeattle University · US

Funding

BIOBEHAVIORAL NURSING RESEARCH TRAINING PROGRAMT32NR007106 · NINR · UNIVERSITY OF WASHINGTON · PI LANDIS, CAROL A · 1999 to 2013
$4.6M
Partnership CoreP30NR004001 · NINR · UNIVERSITY OF WASHINGTON · PI HEITKEMPER, MARGARET MCLEAN · 1994 to 2008
$3.7M
MENOPAUSE TRANSITION--BIOBEHAVIORAL MODELS OF SYMPTOMSR01NR004141 · NINR · UNIVERSITY OF WASHINGTON · PI MITCHELL, ELLEN S · 1996 to 2006
$2.4M
Menopause Symptom Clusters: Refocusing TherapeuticsR21NR012218 · NINR · UNIVERSITY OF WASHINGTON · PI WOODS, NANCY FUGATE · 2010 to 2011
$427k
NINR NIH HHS 1R21NR012218-01NINR NIH HHS NR 04141NINR NIH HHS P30 NR004001NINR NIH HHS P30 NR 04001NINR NIH HHS P50-NR02323NINR NIH HHS R01 NR004141NINR NIH HHS R21 NR012218NINR NIH HHS T32 NR007106
6 · The paper itself

Abstract

aimsReview controlled clinical trials of isoflavones and amino acid preparation effects on hot flashes and at least one other symptom including mood, sleep, pain, and cognitive function that women report during the menopausal transition and early postmenopause.

methodsAn experienced reference librarian searched PubMed/Medline, CINAHL Plus, PsycInfo, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Web of Science, EMBASE, AMED, and Alt-Health Watch for English-language randomized controlled trials between 2004 and July 2011. Seventeen trials of isoflavones and amino acid effects on hot flashes and one additional symptom were identified.

resultsIn five trials of soy isoflavone preparations, two (6g soy germ extract and 25 g soy protein in soy nuts) significantly decreased hot flashes, but no other symptoms. In the seven trials of other isoflavones, six significantly reduced hot flashes; in addition, red clover (80 mg) significantly reduced mood symptoms; Rexflavone (350 mg) for women with Kupperman Index>20 significantly reduced sleep symptoms; two trials had significant reductions for pain: isoflavone powder (90 mg) and red clover (80 mg). The only trial in this systematic review that significantly reduced cognitive symptoms was red clover (80 mg). In one trial, red clover isoflavone (80 mg/day) significantly relieved hot flashes, mood, pain, and cognitive symptoms. Amino acids yielded no significant results. Equol supplements of 30 mg/day for non-Equol producing women significantly reduced mood symptoms in one trial. The magnolia bark extract combination significantly reduced hot flashes, mood, and sleep symptoms.

conclusionsIsoflavone trials yielded significant reductions on hot flashes and co-occurring symptoms during the menopausal transition and postmenopause, but studies require replication with larger sample sizes and attention to measurement of outcomes.

Indexed as

AffectAmino AcidsCognition DisordersFemaleHot FlashesHumansIsoflavonesMenopausePainPhytoestrogensPostmenopauseSleep Wake DisordersAmino AcidsIsoflavonesPhytoestrogensAmino acidsHot flashesIsoflavonesMenopausal transitionSoySymptom clusters

Identifiers

PMID24951101
PMCPMC4120238
OpenAlexW2112271806

What OpenQuestion holds

Textmetadata
LicenceTDM
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.