Evidence map›Paper›PMID 36984668›Full record

ArticleMembranes2023

Erythrocyte Membrane Biophysical Changes Mediated by Pooled Immunoglobulin G and Hematin: Electrokinetic and Lipid Peroxidation Studies.

Virjinia Doltchinkova, Meglena Kitanova, Rumen Nikolov, Angelina Stoyanova-Ivanova, Ognyan Petkov, Yoana Dikova, Victoria Vitkova

Open access · goldAbstract read
In one paragraph

Article in Membranes, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

3 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
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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

7 authors at 3 institutions in 1 country.

Virjinia DoltchinkovaDepartment of Biophysics and Radiobiology, Faculty of Biology, Sofia University "St. Kliment Ohridski", 8 Dragan Tzankov blvd., 1164 Sofia, Bulgaria.ORCID 0000-0003-3096-7311
Meglena KitanovaDepartment of Genetics, Faculty of Biology, Sofia University "St. Kliment Ohridski", 8 Dragan Tzankov blvd., 1164 Sofia, Bulgaria.ORCID 0000-0002-6730-7387
Rumen NikolovFaculty of Mechanical Engineering, Technical University of Sofia, 8 Kl. Ohridski blvd., 1784 Sofia, Bulgaria.
Angelina Stoyanova-IvanovaGeorgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee blvd., 1784 Sofia, Bulgaria.ORCID 0000-0001-6393-1177
Ognyan PetkovGeorgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee blvd., 1784 Sofia, Bulgaria.
Yoana DikovaDepartment of Biophysics and Radiobiology, Faculty of Biology, Sofia University "St. Kliment Ohridski", 8 Dragan Tzankov blvd., 1164 Sofia, Bulgaria.
Victoria VitkovaGeorgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee blvd., 1784 Sofia, Bulgaria.ORCID 0000-0002-4098-7650
Bulgarian Academy of Sciences · BGSofia University "St. Kliment Ohridski" · BGTechnical University of Sofia · BG

Funding

National Science Fund, Ministry of education and Science KP-06-N38/14/2019
6 · The paper itself

Abstract

Pooled Immunoglobulin G (IgG), hematin and the membrane-disruptive amphipathic peptide melittin have received attention as powerful biomacromolecules for biomedical and pharmacology applications. Their action on surface properties, oxidation status and epifluorescence properties measured in vitro provide useful information about the functional activity of upper biomacromolecules in erythrocytes in vivo. The hemolysis of erythrocyte membranes, as well as changes in hematocrit and the morphology of erythrocytes, was investigated here via fluorescence microscopy using FITC-concanavalin A binding to cells. The effect of melittin on the membrane capacitance and resistance of model lipid bilayers was probed via electrochemical impedance spectroscopy. Lipid bilayer capacitance was higher in the presence of 0.10 g/L melittin compared to that in the control, which is likely related to bilayer thinning and alterations of the dielectric permittivity of melittin-treated membranes. The biomolecule interactions with red blood cells were probed in physiological media in which the surface of erythrocyte membranes was negatively charged. Surface parameters of erythrocytes are reported upon IgG/hematin and IgG/melittin treatment. Pooled IgG in the presence of melittin, preincubated IgG/hematin preparations promoted a significant decrease in the electrokinetic potential of erythrocytes (Rh-positive). A malondialdehyde (MDA) assay revealed a high rate of lipid peroxidation in erythrocytes treated with IgG/hematin or IgG/melittin preparations. This finding might be a result of pooled IgG interactions with the hematin molecule and the subsequent conformational changes in the protein molecule altering the electrokinetic properties of the erythrocyte membrane related to the Rh group type of erythrocytes. The pooled IgG and hematin are reported to have important consequences for the biophysical understanding of the immunopathological mechanisms of inflammatory, autoimmune and antibody-mediated pathological processes.

Indexed as

bilayer lipid membraneselectrical capacitanceelectrokinetic potentialerythrocytesfluorescence microscopyhematinhemolysislipid peroxidationmelittinmembrane transportmicroelectrophoresispooled immunoglobulin G

Identifiers

PMID36984668
PMCPMC10056742
OpenAlexW4322629587

What Socratic 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 Socratic graph.