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Immunohistochemical detection of imidazolone and N(epsilon)-(carboxymethyl)lysine in aortas of hemodialysis patients. 1998

F Takayama, and I Aoyama, and S Tsukushi, and T Miyazaki, and S Miyazaki, and T Morita, and Y Hirasawa, and K Shimokata, and T Niwa
Nagoya University Daiko Medical Center, Japan.

The modification of long-lived proteins with advanced glycation endproducts (AGEs) has been hypothesised to contribute to the development of pathologies associated with uremia. Imidazolone and N(epsilon)-(carboxymethyl)lysine (CML) are common epitopes of AGE-modified proteins. Imidazolone is a reaction product of arginine with 3-deoxyglucosone (3-DG) which is markedly accumulated in uremic serum. CML is produced by glycoxidation, and represents a marker of oxidative stress. The specificity of anti-imidazolone antibody that we had developed was further examined using ELISA. The antibody reacted only with imidazolone derived from 3-DG and arginine, but did not react at all with the other imidazolone-like compounds such as reaction products of glyoxal, methylglyoxal, glucosone with arginine or a reaction product of 3-DG with creatine. Further, to determine if AGEs are involved in the development of atherosclerosis in hemodialysis (HD) patients, we studied the localisation of imidazolone and CML in the aortas obtained from HD patients by immunohistochemistry using the anti-imidazolone and anti-CML antibodies. Imidazolone and CML were localised in all atherosclerotic aortic walls of the HD patients. In conclusion, imidazolone and CML are localised in the characteristic lesions of atherosclerosis in HD patients. These results strongly suggest that imidazolone produced by 3-DG, and CML produced by glycoxidation may contribute to the development of atherosclerosis in uremic patients.

UI MeSH Term Description Entries
D007093 Imidazoles Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008239 Lysine An essential amino acid. It is often added to animal feed. Enisyl,L-Lysine,Lysine Acetate,Lysine Hydrochloride,Acetate, Lysine,L Lysine
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011765 Pyruvaldehyde An organic compound used often as a reagent in organic synthesis, as a flavoring agent, and in tanning. It has been demonstrated as an intermediate in the metabolism of acetone and its derivatives in isolated cell preparations, in various culture media, and in vivo in certain animals. Acetylformaldehyde,Methylglyoxal,Oxopropanal,Pyruvic Aldehyde,Aldehyde, Pyruvic
D003847 Deoxyglucose 2-Deoxy-D-arabino-hexose. An antimetabolite of glucose with antiviral activity. 2-Deoxy-D-glucose,2-Deoxyglucose,2-Desoxy-D-glucose,2 Deoxy D glucose,2 Deoxyglucose,2 Desoxy D glucose
D005260 Female Females
D006037 Glyoxal A 2-carbon aldehyde with carbonyl groups on both carbons. Ethanedial,Ethanedione
D006435 Renal Dialysis Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION. Dialysis, Extracorporeal,Dialysis, Renal,Extracorporeal Dialysis,Hemodialysis,Dialyses, Extracorporeal,Dialyses, Renal,Extracorporeal Dialyses,Hemodialyses,Renal Dialyses

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