Cited by 714Advanced Glycation End Products researchAntioxidant Activity and Oxidative StressNitric Oxide and Endothelin Effects

Increased accumulation of the glycoxidation product N(epsilon)-(carboxymethyl)lysine in human tissues in diabetes and aging.

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Schleicher, E D, Wagner, E, Nerlich, A G·1997·Journal of Clinical Investigation

Abstract

N(epsilon)-(Carboxymethyl)lysine (CML), a major product of oxidative modification of glycated proteins, has been suggested to represent a general marker of oxidative stress and long-term damage to proteins in aging, atherosclerosis, and diabetes. To investigate the occurrence and distribution of CML in humans an antiserum specifically recognizing protein-bound CML was generated. The oxidative formation of CML from glycated proteins was reduced by lipoic acid, aminoguanidine, superoxide dismutase, catalase, and particularly vitamin E and desferrioxamine. Immunolocalization of CML in skin, lung, heart, kidney, intestine, intervertebral discs, and particularly in arteries provided evidence for an age-dependent increase in CML accumulation in distinct locations, and acceleration of this process in diabetes. Intense staining of the arterial wall and particularly the elastic membrane was found. High levels of CML modification were observed within atherosclerotic plaques and in foam cells. The preferential location of CML immunoreactivity in lesions may indicate the contribution of glycoxidation to the processes occurring in diabetes and aging. Additionally, we found increased CML content in serum proteins in diabetic patients. The strong dependence of CML formation on oxidative conditions together with the increased occurrence of CML in diabetic serum and tissue proteins suggest a role for CML as endogenous biomarker for oxidative damage.

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Authors
Schleicher, E. D., Wagner, E., & Nerlich, A. G.
Affiliations
  • University of Tübingen (DE)
  • Universitätsklinikum Tübingen (DE)
Venue
Journal of Clinical Investigation
Published
1997-02-01
Volume
99
Issue
3
Pages
457-468
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2089878313
Cited by
714
References
45
Citations by year
2026: 6 · 2025: 13 · 2024: 14 · 2023: 17 · 2022: 15 · 2021: 23 · 2020: 24 · 2019: 22 · 2018: 20 · 2017: 26 · 2016: 22 · 2015: 28 · 2014: 35 · 2013: 29 · 2012: 22
FWCI
15.17
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
carboxymethyllysine, glycoxidation, advanced glycation end products, oxidative stress, diabetes mellitus, aging, atherosclerosis, atherosclerotic plaque, foam cells, arterial wall, serum proteins, alpha-lipoic acid, vitamin E, deferoxamine, superoxide dismutase, catalase, aminoguanidine
MeSH terms
Adult, Aged, Aging, Antibodies, Epitopes, Arteries, Arteriosclerosis, Blood Proteins, Catalase, Child, Deferoxamine, Diabetes Mellitus, Enzyme-Linked Immunosorbent Assay, Female, Fetus, Foam Cells, Guanidines, Humans, Immunohistochemistry, Intervertebral Disc, Intestinal Mucosa, Kidney, Thioctic Acid, Lung, Lysine, Middle Aged, Myocardium, Oxidation-Reduction, Pregnancy, Skin, Superoxide Dismutase, Time Factors, Vitamin E, Molecular Structure, Biomarkers, Oxidative Stress

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