Trimetazidine reverses deleterious effects of ischemia-reperfusion in the isolated perfused pig kidney model.
BACKGROUND
Delayed graft function has remained an important complication after renal transplantation.


METHODS
The purpose of this study was to evaluate Euro-Collins (EC) plus trimetazidine (TMZ) in comparison with standard EC solution after 24- or 48-hour cold storage. The normothermic isolated perfused pig kidney technique combined with proton nuclear magnetic spectroscopy was used.


RESULTS
The study verified that TMZ plus EC had a beneficial preservation effect over EC in terms of better perfusate flow rate at both 24 and 48 h (p < 0.01 and p < 0.001, respectively). In addition, TMZ also was beneficial in terms of increased glomerular filtration rate, better proximal tubular functions, and less tubular injury markers. Lipid peroxidation, evaluated by malondialdehyde renal tissue levels, was decreased in kidney homogenates preserved with TMZ, particularly after 48-hour cold storage. Citrate excretion which reflects a better intracellular pH regulation was detected in urine from kidneys preserved with TMZ. Histological data paralleled findings of the above when comparing cellular injury factors such as vacuolization, necrosis, tubular structure, and interstitial edema.


CONCLUSIONS
These results indicate that, under the conditions of our experiments, the addition of TMZ to EC solution increased the preservation quality of kidneys particularly after prolonged cold ischemia.
Hauet
T
T
Groupe de Recherche en Transplantation Multiviscérale (GRTMV) et Institut National de Recherche Agronomique Le Magneraud, Surgères, Hôpital Saint-Louis, Paris, France.
Mothes
D
D
Goujon
J
J
Germonville
T
T
Caritez
J C
JC
Carretier
M
M
Eugene
M
M
Tillement
J
J
D000818:Animals; D015415:Biomarkers / Q000032:analysis; D003080:Cold Temperature; D006982:Hypertonic Solutions / Q000494:pharmacology; D007668:Kidney / Q000166:cytology / Q000187:drug effects* / Q000648:ultrastructure; D007684:Kidney Tubules / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008315:Malondialdehyde / Q000032:analysis; D008854:Microscopy, Electron; D008954:Models, Biological; D009926:Organ Preservation / Q000379:methods; D019188:Organ Preservation Solutions / Q000494:pharmacology; D009929:Organ Size / Q000187:drug effects; D010477:Perfusion / Q000379:methods*; D015427:Reperfusion Injury / Q000188:drug therapy* / Q000517:prevention & control; D013552:Swine; D013997:Time Factors; D014292:Trimetazidine / Q000494:pharmacology*; D014556:Urine / Q000737:chemistry
D015415:Biomarkers; C037096:Euro-Collins' solution; D006982:Hypertonic Solutions; D019188:Organ Preservation Solutions; D008315:Malondialdehyde; D014292:Trimetazidine