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Non-invasive Markers of their Activity of Glomerulonephritis in Childhood


Neinvazívne markery aktivity glomerulonefritíd v detskom veku

Glomerulonefritídy (GN) tvoria heterogénnu skupinu chorôb glomerulu s rozdielnou patogenézou, klinickým priebehom a prognózou. Pri vzniku a progresii GN majú kľúčovú úlohu cytokíny, ktoré sa tvoria v TH1 a TH2 lymfocytoch. Rastové faktory, najmä TGF-beta a PDGF majú význam pri vzniku tubulointersticiálnej fibrózy, ktorá rozhoduje o prognóze GN a prechode choroby do renálnej insuficiencie. Nepriamo na aktivitu imunitných pochodov v glomerule môže poukazovať vyšetrenie interleukínov a antioxidačného systému. Autori vyšetrili IL-2 a IL-6 v sére a v moči u 20 detí s GN a nefrotickým syndrómom (NS). Vyššie vylučovanie IL-6 zistili u detí s proliferatívnymi GN (23,82 pg/ml). U detí s NS našli negatívnu koreláciu medzi s-IL-2R v moči a CD8+ lymfocytmi (r = -0,7309, p < 0,05). Ako ďalší marker aktivity hodnotili anitoxidačný systém (superoxidizmutázu - SOD, glutathionperoxidázu - GHPx a katalázu - KAT) a jeho prepojenie s metabolizmom stopových prvkov (Zn, Se, Cu) v skupine 34 detí s GN a chronickou renálnou insuficienciou. Najvyššiu aktivitu SOD a KAT v erytrocytoch zistili u detí s nefrotickým syndrómom (p < 0,01). Vyššie vylučovanie Zn našli u detí s chronickou GN. Kauzálnu súvislosť medzi poruchou metabolizmu Zn a Se zistili u detí s renálnou insuficienciou.

Klíčová slova:
glomerulonefritídy, cytokíny, rastové faktory, antioxidanty, stopové prvky


Authors: Ľ. Podracká;  M. Šašinka;  A. Böör;  O. Rácz
Authors‘ workplace: Pediatrická klinika LF UPJŠ, Košice, prednosta prof. MUDr. M. Šašinka, DrSc. Ústav patologickej anatómie LF UPJŠ, Košice, prednosta doc. MUDr. A. Böör, CSc. Ústav patologickej fyziológie LF UPJŠ, Košice, prednosta doc. MUDr. O. Rácz, CSc.
Published in: Čes-slov Pediat 1998; (12): 756-761.
Category:

Overview

Glomerulonephritis (GN) is a heterogeneous group of disease of the glomerulus with a different pathogenesis, clinical course and prognosis. In the development of progression of GN a crucial role is played by cytokines which are formed in TH1 and TH2 lymphocytes. Growth factors, in particular TGF-beta and PDGF, are important for the development of tubulointerstitial fibrosis which is decisive for the prognosis of GN and the transformation of the disease into renal insufficiency. The activity of immune processes in the glomerulus is indirectly suggested by examination of interleukins and the antioxidant system. The authors examined IL-2 and IL-6 in serum and urine of 20 children with GN and nephrotic syndrome. An elevated excretion of IL-6 was found in children with proliferative GN (23.82 pg/ml). In children with NS they found a negative correlation between s-IL-2R in urine and CD8+ lymphocytes (r = -0.7309, p < 0.05). As another marker of activity they evaluated the antioxidant system (superoxidismutase - SOD, glutathione peroxidase - GHPx and catalase - KAT) and its interrelations with the metabolism of trace elements (Zn, Se, Cu) in a group of 34 children with GN and chronic renal insufficiency. The highest SOD and KAT activity in erythrocytes was found in children with nephrotic syndrome (p < 0.01). A higher Zn excretion was found in children with chronic GN. A causal association between impaired Zn and Se metabolism was found in children with renal insufficiency.

Key words:
glomerulonephritis, cytokines, growth factors, antioxidants, trace elements

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Labels
Neonatology Paediatrics General practitioner for children and adolescents

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Czech-Slovak Pediatrics


1998 Issue 12
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