Evidence map›Paper›PMID 37298922›Full record

ReviewMolecules (Basel, Switzerland)2023

Progress in the Detection of Erythropoietin in Blood, Urine, and Tissue.

Yukiko Yasuoka, Yuichiro Izumi, Jeff M Sands, Katsumasa Kawahara, Hiroshi Nonoguchi

Open access · goldAbstract readReview
In one paragraph

Review in Molecules (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.6field-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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
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  3. Review
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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

5 authors at 4 institutions in 2 countries.

Yukiko YasuokaDepartment of Physiology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Japan.ORCID 0000-0002-9380-1653
Yuichiro IzumiDepartment of Nephrology, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.ORCID 0000-0003-0827-9619
Jeff M SandsRenal Division, Department of Medicine, Emory University School of Medicine, 1639 Pierce Drive, WMB Room 3313, Atlanta, GA 30322, USA.
Katsumasa KawaharaDepartment of Physiology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0374, Japan.
Hiroshi NonoguchiDivision of Internal Medicine, Kitasato University Medical Center, 6-100 Arai, Kitamoto 364-8501, Japan.ORCID 0000-0001-7831-7380
Kitasato University · JPEmory University · USKitasato University Medical Center · JPKumamoto University · JP

Funding

a Grant-in-Aid for Scientific Research from the Ministry of Education, Vulture, Sports, Science and Technology of Japan 18K08247The Science Research Promotion Fund from Kitasato University Medical Center H24-01
6 · The paper itself

Abstract

Detection of erythropoietin (Epo) was difficult until a method was developed by the World Anti-Doping Agency (WADA). WADA recommended the Western blot technique using isoelectric focusing (IEF)-PAGE to show that natural Epo and injected erythropoiesis-stimulating agents (ESAs) appear in different pH areas. Next, they used sodium N-lauroylsarcosinate (SAR)-PAGE for better differentiation of pegylated proteins, such as epoetin β pegol. Although WADA has recommended the use of pre-purification of samples, we developed a simple Western blotting method without pre-purification of samples. Instead of pre-purification, we used deglycosylation of samples before SDS-PAGE. The double detection of glycosylated and deglycosylated Epo bands increases the reliability of the detection of Epo protein. All of the endogenous Epo and exogenous ESAs shift to 22 kDa, except for Peg-bound epoetin β pegol. All endogenous Epo and exogenous ESAs were detected as 22 kDa deglycosylated Epo by liquid chromatography/mass spectrum (LC/MS) analysis. The most important factor for the detection of Epo is the selection of the antibody against Epo. WADA recommended clone AE7A5, and we used sc-9620. Both antibodies are useful for the detection of Epo protein by Western blotting.

Indexed as

Body FluidsErythropoietinAntibodiesBlotting, WesternElectrophoresis, Polyacrylamide GelIsoelectric FocusingRecombinant ProteinsReproducibility of ResultsSubstance Abuse DetectionAntibodiesErythropoietinRecombinant ProteinsdeglycosylationdopingerythropoietinglycoproteinHIF2αhypoxiaPHD inhibitorWestern blotting

Identifiers

PMID37298922
PMCPMC10254663
OpenAlexW4378882648

What OpenQuestion holds

Textmetadata
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.