Evidence map›Paper›PMID 31877807›Full record

ArticleAntioxidants (Basel, Switzerland)2019

A Micromethod for Polyphenol High-Throughput Screening Saves 90 Percent Reagents and Sample Volume.

Franz Tatzber, Willibald Wonisch, Sonja Lackner, Meinrad Lindschinger, Werner Pursch, Ulrike Resch, Christopher Trummer, Michael Murkovic, Sieglinde Zelzer, Sandra Holasek and 1 more

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 32% 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, 15 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

11 authors at 3 institutions in 1 country.

Franz TatzberOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Immunology and Pathophysiology, Medical University of Graz, Graz 8010, Austria.
Willibald WonischOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Physiological Medicine, Medical University of Graz, Graz 8010, Austria.
Sonja LacknerOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Immunology and Pathophysiology, Medical University of Graz, Graz 8010, Austria.
Meinrad LindschingerInstitute of Nutritional and Metabolic Diseases, Outpatient Clinic Laßnitzhöhe, Laßnitzhöhe 8301, Austria.
Werner PurschOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Immunology and Pathophysiology, Medical University of Graz, Graz 8010, Austria.
Ulrike ReschDepartment of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna 1090, Austria.ORCID 0000-0002-8380-9555
Christopher TrummerInstitute of Biochemistry, Graz University of Technology, Graz 8010, Austria.
Michael MurkovicInstitute of Biochemistry, Graz University of Technology, Graz 8010, Austria.
Sieglinde ZelzerClinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz 8010, Austria.
Sandra HolasekOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Immunology and Pathophysiology, Medical University of Graz, Graz 8010, Austria.
Gerhard CvirnOtto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Devision of Physiological Medicine, Medical University of Graz, Graz 8010, Austria.
Medical University of Graz · ATGraz University of Technology · ATMedical University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is ample evidence that polyphenols are important natural substances with pronounced antioxidative properties. This study aimed to develop a fast and reliable method to determine total polyphenol content (TPC) in foodstuffs and human samples. The microtitration format offers the advantage of low sample volumes in the microlitre range, facilitating high-throughput screening with 40 samples simultaneously. We accordingly adjusted the so-called Folin-Ciocalteu method to a microtitre format (polyphenols microtitre-PPm) with 90% reduction of reagents. The assay was standardized with gallic acid in the range between 0.1 and 3 mM, using a 20 µL sample volume. The intra-assay coefficient of variation (CV) was less than 5%, and inter-assay CV was in the range of 10%. Wavelength was measured at 766 nm after two hours of incubation. This micromethod correlates significantly with both the classical Folin-Ciocalteu method and High-Performance Thin-Layer Chromatography (HPTLC) (r

Indexed as

antioxidantsFolin–Ciocalteu reagentoxidative stressTACTMB

Identifiers

PMID31877807
PMCPMC7023636
OpenAlexW2994768964

What OpenQuestion holds

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LicenceCC BY
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.