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- W2170263816 abstract "Renal ischemia reperfusion (IR) injury (IRI) is an important mechanism of acute renal failure (ARF) and a crucial factor of tissue damage during vascular surgery. IR may lead to tissue destruction and influence the early and long-term outcome of organs. The anti-anginal medication trimetazidine (TMZ) is a drug, the protective effects of which have been already assessed during cold preservation and warm ischemia (WI). The objective of this dose-effect study was to assess the role of TMZ in severe renal WI model.We have used an established WI pig kidney model associated with a uninephrectomy condition and studied the dose-dependent role of TMZ (1, 5, and 10 mg/Kg, i.v. for 24 hours before WI) against deleterious effects of WI (60 minutes of WI followed by reperfusion) compared with sham-operated (control) and uninephrectomized animals (unif). Direct effect of TMZ was determined using different variables: renal function (creatinine clearance; C(cr)) and indirectly, the consequences on inflammation (cells infiltration), rate of apoptosis, fibrosis development, and renal epithelial cells change into myofibroblast, which defined epithelial to mesenchymal transition (alpha-smooth muscle actin [alpha-SMA] and vimentin expression).TMZ (5 or 10 mg/Kg) significantly increased C(cr) and reduced the inflammatory response prevalent in ischemic kidney injury and rate of apoptosis expression. In addition, the limitation of initial IRI was correlated with an earlier and greater expression of hypoxia-inducible transcription factor-1alpha (HIF-1alpha), which is a hypoxia marker during kidney regeneration. A reduction of the tubulointerstitial development of fibrosis and a limitation of the alpha-smooth muscle actin expression (alpha-SMA) was observed with TMZ treatment. At 3 months, vimentin expression was increased in WI groups without TMZ or low TMZ dose treatment compared with 5 or 10 mg/Kg treated groups.Collectively, these data suggest that TMZ made the warm ischemic kidneys more resistant to the deleterious impact of a single episode of IR and could have a role in preserving the ischemic kidney from long-term damage." @default.
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- W2170263816 date "2008-04-01" @default.
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- W2170263816 title "Trimetazidine reduces early and long-term effects of experimental renal warm ischemia: A dose effect study" @default.
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- W2170263816 doi "https://doi.org/10.1016/j.jvs.2007.10.036" @default.
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