Evidence map›Paper›PMID 26627938›Full record

ArticleJournal of chromatography. B, Analytical technologies in the biomedical and life sciences2016

Entrapment of alpha1-acid glycoprotein in high-performance affinity columns for drug-protein binding studies.

Cong Bi, Abby Jackson, John Vargas-Badilla, Rong Li, Giana Rada, Jeanethe Anguizola, Erika Pfaunmiller, David S Hage

Open access · greenAbstract read
In one paragraph

Article in Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Characterization of binding by sulfonylureas with normal or modified human serum albumin using affinity microcolumns prepared by entrapment.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2023
    Article
  6. Characterization of drug binding with alphaJournal of chromatography. A · 2021
    Article
  7. Article
  8. Affinity chromatography: A review of trends and developments over the past 50 years.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2020
    Review
  9. Article
  10. Optimization of protein entrapment in affinity microcolumns using hydrazide-activated silica and glycogen as a capping agent.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2019
    Article
  11. Review
  12. Article
  13. Studies of drug interactions with alphaJournal of chromatography. A · 2017
    Article
  14. Review
  15. Article
  16. Article
  17. 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

8 authors at 1 institution in 1 country.

Cong BiDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
Abby JacksonDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
John Vargas-BadillaDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
Rong LiDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
Giana RadaDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
Jeanethe AnguizolaDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
Erika PfaunmillerDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA.
David S HageDepartment of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA. Electronic address: dhage1@unl.edu.
University of Nebraska–Lincoln · US

Funding

CHROMATOGRAPHIC AUTOMATION OF IMMUNOASSAYSR01GM044931 · NIGMS · UNIVERSITY OF NEBRASKA LINCOLN · PI HAGE, DAVID S · 1998 to 2014
$2.7M
EXTRAMURAL RESEARCH FACILITIES CONSTRUCTIONC06RR015468 · NCRR · UNIVERSITY OF NEBRASKA LINCOLN · PI PAUL, PREM S · 2000 to 2000
$2.0M
NCRR NIH HHS C06 RR015468NIGMS NIH HHS R01 GM044931
6 · The paper itself

Abstract

A slurry-based method was developed for the entrapment of alpha1-acid glycoprotein (AGP) for use in high-performance affinity chromatography to study drug interactions with this serum protein. Entrapment was achieved based on the physical containment of AGP in hydrazide-activated porous silica supports and by using mildly oxidized glycogen as a capping agent. The conditions needed for this process were examined and optimized. When this type of AGP column was used in binding studies, the association equilibrium constant (Ka) measured by frontal analysis at pH 7.4 and 37°C for carbamazepine with AGP was found to be 1.0 (±0.5)×10(5)M(-1), which agreed with a previously reported value of 1.0 (±0.1)×10(5)M(-1). Binding studies based on zonal elution were conducted for several other drugs with such columns, giving equilibrium constants that were consistent with literature values. An entrapped AGP column was also used in combination with a column containing entrapped HSA in a screening assay format to compare the binding of various drugs to AGP and HSA. These results also agreed with previous data that have been reported in literature for both of these proteins. The same entrapment method could be extended to other proteins and to the investigation of additional types of drug-protein interactions. Potential applications include the rapid quantitative analysis of biological interactions and the high-throughput screening of drug candidates for their binding to a given protein.

Indexed as

Chromatography, AffinityChromatography, High Pressure LiquidHumansOrosomucoidPharmaceutical PreparationsProtein BindingSerum AlbuminOrosomucoidPharmaceutical PreparationsSerum AlbuminAlpha(1)-acid glycoproteinDrug-protein bindingEntrapmentHigh-performance affinity chromatographyHuman serum albumin

Identifiers

PMID26627938
PMCPMC4862888
OpenAlexW2186246937

What OpenQuestion holds

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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.