Cited by 19Neutrophil, Myeloperoxidase and Oxidative MechanismsAtherosclerosis and Cardiovascular DiseasesNitric Oxide and Endothelin Effects

Correlation of low-density lipoprotein modification by myeloperoxidase with hypochlorous acid formation

Jerlich, A., Horakova, L., Fabjan, J. S., Giessauf, A., Schaur, R. J., Jürgens, G., Schaur, R. J.·1999·International Journal of Clinical & Laboratory Research

Abstract

Myeloperoxidase is an enzyme in phagocytes which catalyzes several redox reactions. A major product is hypochlorous acid which appears to be important in inflammatory processes such as atherosclerosis. The aim of this study was to investigate whether the kinetics of low-density lipoprotein modification by the myeloperoxidase/hydrogen peroxide/chloride system in vitro conform to the established kinetics of hypochlorous acid formation and to compare the results with known in vivo data. The absorbance at 234 nm was applied to study the kinetics of the modification of low-density lipoprotein. Variation of the concentration of low-density lipoprotein, hydrogen peroxide, and chloride, respectively, had a biphasic effect on the maximal rate of low-density lipoprotein modification. Increasing the substrates up to certain threshold levels resulted in increased modification, however, further increases caused inhibition of low-density lipoprotein modification. The inhibitory effect of higher low-density lipoprotein concentrations might be relevant, since these concentrations occur in the human aortic intima. Furthermore, a positive correlation was found between the maximal rate of low-density lipoprotein modification and the acidity of the medium. In summary, low-density lipoprotein modification is affected by the myeloperoxidase/hydrogen peroxide/chloride system in a similar manner to hypochlorous acid production. We conclude that myeloperoxidase, which has been detected in atherosclerotic lesions, is able to modify low-density lipoprotein into the form which is taken up by macrophages in an uncontrolled manner.

Integrity signals

Registry

Crossref · 10.1007/s005990050083

Cites

54 of 54 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

1 of the 55 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Jerlich, A., Horakova, L., Fabjan, J. S., Giessauf, A., Schaur, R. J., Jürgens, G., & Schaur, R. J.
Affiliations
University of Graz (AT)
Venue
International Journal of Clinical & Laboratory Research
Published
1999-12
Volume
29
Issue
4
Pages
155-161
ISSN
  • 0940-5437 (ISSN-L)
  • 1434-4467
OpenAlex
W2325357782
Cited by
19
References
55
Citations by year
2022: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 1 · 2016: 1 · 2014: 1
FWCI
0.45
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Clinical & Laboratory Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
myeloperoxidase, hypochlorous acid, hydrogen peroxide, chloride, reaction kinetics, atherosclerosis, phagocytes, redox reactions, medium acidity
MeSH terms
Adult, Arteriosclerosis, Chlorides, Female, Humans, Hydrogen Peroxide, Hydrogen-Ion Concentration, Hypochlorous Acid, Kinetics, Cholesterol, LDL, Male, Peroxidase, Oxidants, Oxidative Stress

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review