Concentration of Circulating Advanced Glycation end Products of in the Model of Acute Renal insufficiency in Rats
ZVÝŠENIE KONCENTRÁCIÍ CIRKULUJÚCICH KONCOVÝCH PRODUKTOV POKROČILEJ GLYKÁCIE V MODELI AKÚTNEJ RENÁLNEJ INSUFICIENCIE U POTKANA
Východisko.
Koncové produkty pokročilej glykácie (advanced glycation end products, AGEs) vznikajú neenzymatickou glykáciou a glyoxidáciou bielkovín a peptidov pomaly počas starnutia. V obehu a tkanivách sa hromadila pri diabete a chronickej renálnej insuficiencii. Oblička hrá kľúčovú úlohu pri eliminácii AGEs. Cieľom práce bolo overiť predpoklad, že akútna strata obličkových funkcií so zvýšeným oxidačným a krabonylovým stresom sa prejaví zvýšením koncentrácií cirkulujúcich AGEs.Metódy a výsledky. Akútnu renálnu insuficienciu (ARI) sme u potkana indukoval bilaterálnou nefrektómiou (24-72 h). Výsledky sme porovnávali oproti kontrolnej skupine slepo operovaných potkanov. Koncentrácie AGEs merané spektrofluorometricky alebo ako Ne-karboxymetyllyzín, sa v priebehu 48 hodín zvýšili na viac ako dvojnásobok kontrolných hodnôt, a tesne korelovali s koncentráciami kreatinínu (r=0,938, p
Klíčová slova:
koncové produkty pokročilej glykácie (AGEs), akútna renálna insuficiencia (ARI), Ne-karboxymetyllyzín (CML), malondialdehyd (MDA), lipofuscín (LP), totálny antioxidačný status (TAS).
Authors:
P. Boor; P. Božek; P. Blažíček; D. Syrová; R. Schinzel; A. Heidland; A. Pecovová; K. Šebeková
Authors place of work:
Lekárska fakulta Univerzity Komenského, Bratislava Nemocnica ministerstva vnútra SR, Bratislava Nemocnica Ministerstva obrany SR, Bratislava Inštitút fyziologickej chémie I, Biocentrum, Wuerzburg, SRN Interná klinika Univerzity Wuerzburg, SRN Ústav preven
Published in the journal:
Čas. Lék. čes. 2001; : 375-380
Category:
Summary
Background.
Advanced glycation end products (AGEs) are formed from proteins and peptides by non-enzymatic glycation or glycoxidation. AGEs are formed slowly during aging, and they accumulate in circulation and tissues in diabetes and chronic renal failure. Kidney plays a key role in the disposal of AGEs. Aim of this study was to verify the hypothesis that, acute loss of renal function with enhanced oxidative and carbonyl stress should results in a rise of circulating AGEs levels.Method and Results. Acute renal failure (ARI) was induced in rats by bilateral nephrectomy (24-72 hours). The data on AGEs levels, oxidative status and antioxidative defense was compared to those of sham operated animals. 48 hours after the induction of ARI concentrations of AGEs, determined fluorimetrically or as carboxymethyllysine, rose 2-fold, and they correlated with concentrations of creatinine (r=0.938, p
Key words:
advanced glycation end products, acute renal failure, Ne-carboxymethyllysine, malondialdehyde, lipofuscine, total antioxidant status, oxidative stress, carbonyl stress.
Štítky
Addictology Allergology and clinical immunology Angiology Audiology Clinical biochemistry Dermatology & STDs Paediatric gastroenterology Paediatric surgery Paediatric cardiology Paediatric neurology Paediatric ENT Paediatric psychiatry Paediatric rheumatology Diabetology Pharmacy Vascular surgery Pain management Dental HygienistČlánok vyšiel v časopise
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