Evidence map›Paper›PMID 35651836›Full record

ReviewNutrition research and practice2022

Effect of isoflavone supplementation on menopausal symptoms: a systematic review and meta-analysis of randomized controlled trials.

Inhae Kang, Chai Hong Rim, Hee Sun Yang, Jeong-Sook Choe, Ji Yeon Kim, Myoungsook Lee

Open access · diamondAbstract readReview
In one paragraph

Review in Nutrition research and practice, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. 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

6 authors at 5 institutions in 1 country.

Inhae KangDepartment of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.ORCID https://orcid.org/0000-0001-9352-5591
Chai Hong RimDepartment of Radiation Oncology, Korea University Ansan Hospital, Ansan 15355, Korea.ORCID https://orcid.org/0000-0001-7431-4588
Hee Sun YangDivision of Functional Food & Nutrition, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea.ORCID https://orcid.org/0000-0003-1916-1907
Jeong-Sook ChoeDivision of Functional Food & Nutrition, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea.ORCID https://orcid.org/0000-0002-2380-0591
Ji Yeon KimDepartment of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Korea.ORCID https://orcid.org/0000-0002-4316-2726
Myoungsook LeeDepartment of Food and Nutrition, School of Bio-Health Convergence, Sungshin Women's University, Seoul 01133, Korea.ORCID https://orcid.org/0000-0003-1344-6979
Rural Development Administration · KRJeju National University · KRKorea University · KRSeoul National University of Science and Technology · KRSungshin Women's University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesComplementary and alternative medicines can be used to alleviate climacteric symptoms that significantly affect the quality of life of postmenopausal women. Isoflavones are the most common plant-based therapies for postmenopausal changes, but the results of previous studies have been controversial. MATERIALS/

methodsTo investigate whether isoflavones would affect menopausal symptoms as well as ovarian hormones, we performed a systematic review and meta-analysis. The PubMed and EMBASE databases were used to perform the systematic search. Included studies were limited to randomized controlled trials (RCTs) assessing the impact of isoflavone supplementation on menopausal symptoms.

resultsEleven studies were included for the final quantitative assessment. Isoflavone intervention was varied between 49.3 and 135 mg of isoflavones per day for 12 wk-2 yrs. The meta-analysis showed that supplementation of isoflavones significantly increased the estradiol levels (standardized mean difference [SMD] = 0.615,

conclusionsAlthough the results showed a significant SMD in estradiol and the Kupperman index, the results should be interpreted with caution due to the high heterogeneity. Further validation with a larger RCT will be necessary. Overall, isoflavone supplementation has distinct effects on the climacteric symptoms and hormonal changes in postmenopausal women.

Indexed as

estradiolIsoflavonesmeta-analysispostmenopausesystematic review

Identifiers

PMID35651836
PMCPMC9127519
OpenAlexW4282942078

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.