Evidence map›Paper›PMID 29641206›Full record

ArticleJournal of natural products2018

Estrogen Receptor (ER) Subtype Selectivity Identifies 8-Prenylapigenin as an ERβ Agonist from Glycyrrhiza inflata and Highlights the Importance of Chemical and Biological Authentication.

Atieh Hajirahimkhan, Obinna Mbachu, Charlotte Simmler, Sarah G Ellis, Huali Dong, Dejan Nikolic, David C Lankin, Richard B van Breemen, Shao-Nong Chen, Guido F Pauli and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of natural products, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 26 citations in OpenAlex.

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  10. Review
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  12. Article
  13. Improving natural product research translation: From source to clinical trial.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  14. Evidence for Chemopreventive and Resilience Activity of Licorice:Cancer prevention research (Philadelphia, Pa.) · 2018
    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

12 authors at 1 institution in 1 country.

Atieh HajirahimkhanORCID 0000-0003-0585-5668
Charlotte SimmlerORCID 0000-0002-6923-2630
Sarah G Ellis
Huali Dong
Dejan Nikolic
Richard B van BreemenORCID 0000-0003-2016-0063
University of Illinois Chicago · US

Funding

Van Breemen: Project 3; Botanical Dietary Supplements - Metabolism and Safety in Women (Van Breemen)P50AT000155 · NCCIH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PAULI, GUIDO F · 1999 to 2019
$30.4M
Research Training in Natural Product Complementary and Integrative HealthT32AT007533 · NCCIH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI Joanna E Burdette, JIMMY ORJALA · 2013 to 2026
$4.3M
Center for Natural Product Technologies at UIC (CeNAPT)U41AT008706 · NCCIH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PAULI, GUIDO F · 2015 to 2019
$1.5M
NCCIH NIH HHS P50 AT000155NCCIH NIH HHS T32 AT007533NCCIH NIH HHS U41 AT008706
6 · The paper itself

Abstract

Postmenopausal women are increasingly using botanicals for menopausal symptom relief due to the increased breast cancer risk associated with traditional estrogen therapy. The deleterious effects of estrogens are associated with estrogen receptor (ER)α-dependent proliferation, while ERβ activation could enhance safety by opposing ERα effects. Three medicinal licorice species, Glycyrrhiza glabra ( G. glabra), G. uralensis, and G. inflata, were studied for their differential estrogenic efficacy. The data showed higher estrogenic potency for G. inflata in an alkaline phosphatase induction assay in Ishikawa cells (ERα) and an estrogen responsive element (ERE)-luciferase assay in MDA-MB-231/β41 breast cancer cells (ERβ). Bioassay-guided fractionation of G. inflata led to the isolation of 8-prenylapigenin (3). Surprisingly, a commercial batch of 3 was devoid of estrogenic activity. Quality control by MS and qNMR revealed an incorrect compound, 4'- O-methylbroussochalcone B (10), illustrating the importance of both structural and purity verification prior to any biological investigations. Authentic and pure 3 displayed 14-fold preferential ERβ agonist activity. Quantitative analyses revealed that 3 was 33 times more concentrated in G. inflata compared to the other medicinal licorice extracts. These data suggest that standardization of G. inflata to 3 might enhance the safety and efficacy of G. inflata supplements used for postmenopausal women's health.

Indexed as

Breast NeoplasmsChalconesEstrogen Receptor alphaEstrogen Receptor betaEstrogensFemaleFlavonesGlycyrrhizaHumansPlant Extracts8-prenylapigeninChalconesEstrogen Receptor alphaEstrogen Receptor betaEstrogensFlavonesPlant Extracts

Identifiers

PMID29641206
PMCPMC5928484
OpenAlexW2796920413

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.