Evidence map›Paper›PMID 24861737›Full record

ArticleBiomedical chromatography : BMC2014

Biological and chemical standardization of a hop (Humulus lupulus) botanical dietary supplement.

Elizabeth Krause, Yang Yuan, Atieh Hajirahimkhan, Huali Dong, Birgit M Dietz, Dejan Nikolic, Guido F Pauli, Judy L Bolton, Richard B van Breemen

Open access · greenAbstract read
In one paragraph

Article in Biomedical chromatography : BMC, 2014. 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
4.9field-weighted citation impact, top 6% 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, 30 citations in OpenAlex.

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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

9 authors at 3 institutions in 1 country.

Elizabeth KrauseUIC/NIH Center for Botanical Dietary Supplements Research, Department of Medicinal Chemistry and Pharmacognosy, University of Illinois College of Pharmacy, Chicago, IL, 60612-72312, USA.
Yang Yuan
Atieh Hajirahimkhan
Huali Dong
Birgit M Dietz
Dejan Nikolic
Guido F Pauli
Judy L Bolton
Richard B van Breemen
University of Illinois Chicago · USUniversity of Illinois Urbana-Champaign · USIllinois College · 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
NCCIH NIH HHS P50 AT000155NCCIH NIH HHS P50AT000155-12S1
6 · The paper itself

Abstract

Concerned about the safety of conventional estrogen replacement therapy, women are using botanical dietary supplements as alternatives for the management of menopausal symptoms such as hot flashes. Before botanical dietary supplements can be evaluated clinically for safety and efficacy, botanically authenticated and standardized forms are required. To address the demand for a standardized, estrogenic botanical dietary supplement, an extract of hops (Humulus lupulus L.) was developed. Although valued in the brewing of beer, hop extracts are used as anxiolytics and hypnotics and have well-established estrogenic constituents. Starting with a hop cultivar used in the brewing industry, spent hops (the residue remaining after extraction of bitter acids) were formulated into a botanical dietary supplement that was then chemically and biologically standardized. Biological standardization utilized the estrogen-dependent induction of alkaline phosphatase in the Ishikawa cell line. Chemical standardization was based on the prenylated phenols in hops that included estrogenic 8-prenylnaringenin, its isomer 6-prenylnaringenin, and pro-estrogenic isoxanthohumol and its isomeric chalcone xanthohumol, all of which were measured using high-performance liquid chromatography-tandem mass spectrometry. The product of this process was a reproducible botanical extract suitable for subsequent investigations of safety and efficacy.

Indexed as

Cell LineDietary SupplementsEstrogensFemaleHumansHumulusPlant ExtractsEstrogensPlant Extracts8-prenylnaringeninbotanical dietary supplementsestrogen replacementhopsIshikawa cellsLC/MS-MSstandardizationxanthohumol

Identifiers

PMID24861737
PMCPMC4240625
OpenAlexW2153356840

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.