Oxypurine and nucleoside concentrations in renal veins during reperfusion are predictors of early graft function.
OBJECTIVE
To examine whether purine and pyrimidine nucleoside concentrations as well as oxypurine concentrations in renal and peripheral veins during reperfusion correlate with graft function parameters.


METHODS
The study population comprised 25 recipients of cadaver kidney transplant. A first blood sample was taken from the recipient's peripheral vein before anastomosing the kidney allograft vessels with the recipient's iliac vessels. Subsequent samples were taken from the allograft renal vein and the recipient's peripheral vein 5 min after beginning reperfusion. High-performance liquid chromatography was done to measure plasma concentrations of the oxypurines hypoxanthine (Hyp), xanthine (Xan) and uric acid and the nucleosides guanosine, inosine (Ino) and uridine (Urd).


RESULTS
Concentrations of Hyp, Xan and Ino were significantly higher in the renal than the peripheral vein. The differences between the Xan, Hyp, Ino and Urd plasma concentrations in the renal and peripheral veins before and 5 min after reperfusion correlated positively and significantly with serum creatinine concentrations 24 and 72 h after graft transplantation. Moreover, the concentrations of Hyp were significantly increased in renal transplant recipients with delayed graft function.


CONCLUSIONS
The results of this study suggest that the concentration of Hyp in the kidney allograft vein can be a useful predictor of early graft function.
Domanski
Leszek
L
Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland. domanle@sci.pam.szczecin.pl
Safranow
Krzysztof
K
Jakubowska
Katarzyna
K
Myslak
Marek
M
Rozanski
Jacek
J
Ostrowski
Marek
M
Dutkiewicz
Grazyna
G
Pawlik
Andrzej
A
Ciechanowski
Kazimierz
K
D005260:Female; D006151:Guanosine / Q000097:blood*; D006801:Humans; D019271:Hypoxanthine / Q000097:blood*; D007288:Inosine / Q000097:blood*; D016030:Kidney Transplantation / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009705:Nucleosides / Q000097:blood*; D011237:Predictive Value of Tests; D012082:Renal Veins; D015424:Reperfusion; D014527:Uric Acid / Q000097:blood*; D014529:Uridine / Q000097:blood*; D019820:Xanthine / Q000097:blood*
D009705:Nucleosides; D006151:Guanosine; D019820:Xanthine; D014527:Uric Acid; D019271:Hypoxanthine; D007288:Inosine; D014529:Uridine