Serum concentrations and renal expressions of IL-1 and TNF-a early after hemorrhage in rats under the effect of glibenclamide
Marques, Christiane D'Oliveira; Diego, Luis Antonio dos Santos; Marcondes-Machado, Jussara; Amorim, Renée Lauffer; Carvalho, Lídia Raquel; Módolo, Norma Sueli Pinheiro; Braz, Leandro Gobbo; Castiglia, Yara Marcondes Machado.
Acta cir. bras;
31(7): 434-441, tab, graf
Artículo
en Inglés
| LILACS | ID: lil-787265
ABSTRACT
PURPOSE:
To investigate changes in the serum concentration and renal expression of IL-1 and TNF-α cytokines in rats that received sevoflurane and glibenclamide prior to hemorrhage.METHODS:
Two groups of sevoflurane-anesthetized Wistar rats (n=10) G1 (control) and G2 (glibenclamide, 1 µg/g i.v.); hemorrhage of 30% blood volume (10% every 10 min), with replacement using Ringer solution, 5 ml/kg/h. Serum concentrations of IL-1 and TNF-α were studied in the first hemorrhage (T1) and 50 min later (T2), renal expression, at T2.RESULTS:
In serum, G1 TNF-α (pg/mL) was T1=178.6±33.5, T2=509.2±118.8 (p<0.05); IL-1 (pg/mL) was T1=148.8±31.3, T2=322.6±115.4 (p<0.05); in G2, TNF-α was T1=486.2±83.6, T2=261.8±79.5 (p<0.05); IL-1 was T1=347.0±72.0, T2= 327.3±90.9 (p>0.05). The expression of TNF-α and IL-1 in the glomerular and tubular cells was significantly higher in the G2 group.CONCLUSIONS:
Hemorrhage and glibenclamide elevated TNF-α and IL-1 concentrations in serum and kidneys. High levels of TNF-α already present before the hemorrhage in the glibenclamide group may have attenuated the damages found in the kidneys after the ischemia event.
Biblioteca responsable:
BR1.1
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