title: Endothelial Nitric Oxide Synthase and Endothelin-1 Expression in the Early Post-Porcine Kidney Autotransplantation Period.
abstract: BACKGROUND
  The aim of this study was the assessment of endothelial nitric oxide synthase (eNOS) and endothelin-1 (EDN-1) expression in porcine kidneys on the 14th and 30th days after the autotransplantation procedure.
  
  
  METHODS
  The research was conducted on 12 animals that underwent a left renal transplantation procedure with further standardized rinsing and 24-hour storage in 4°C; subsequently, the kidneys were implanted in the right retroperitoneal space after right-sided nephrectomy. Removed kidneys were examined (group 0). Six randomly chosen animals (group 1) were under observation for 14 days and 6 others (group 2) for 30 days.
  
  
  RESULTS
  After these observation periods, euthanasia was performed on the animals and 4-g samples were collected from the renal cortex and medulla. The Western blot technique was used to detect the eNOS and EDN-1 expression at the protein level. The obtained results are presented as absolute values of integrated optical density. Stable graft function was observed in all animals from the 2nd day after the procedure. eNOS in group 1 reached the mean value of 1.064 and was statistically significantly lower than in group 2 (2.085) or in the control group 0 (3.318). In the case of EDN-1 expression on 14th day after transplantation, the medium level was reported (0.248), which was similar to group 0 (0.216), whereas group 2 presented values 2 times higher (0.743).
  
  
  CONCLUSIONS
  A lowered eNOS level in the organ was observed on the 14th day after autotransplantation of a pig kidney; further enzyme normalization is associated with increased EDN-1 expression.
authors: Department of General, Vascular, and Transplant Surgery, Medical University of Silesia, Katowice, Poland.
authors: G
authors: G
authors: Oczkowicz
authors: Department of General, Vascular, and Transplant Surgery, Medical University of Silesia, Katowice, Poland. Electronic address: acaban@man.pl.
authors: A
authors: A
authors: Caban
authors: Department of General, Vascular, and Transplant Surgery, Medical University of Silesia, Katowice, Poland.
authors: G
authors: G
authors: Budziński
authors: Department of Histology and Embryology, Medical University of Silesia, Katowice, Poland.
authors: A
authors: A
authors: Suszka-Świtek
authors: Department of Applied Pharmacy and Drug Technology, Sosnowiec, Poland.
authors: B
authors: B
authors: Dolińska
authors: Department of Histology and Embryology, Medical University of Silesia, Katowice, Poland.
authors: E
authors: E
authors: Czech
authors: Department of Histology and Embryology, Medical University of Silesia, Katowice, Poland.
authors: R
authors: R
authors: Wiaderkiewicz
authors: "Biochefa" Pharmaceutical Research Production Plant, Sosnowiec, Poland.
authors: F
authors: F
authors: Ryszka
authors: Department of General, Vascular, and Transplant Surgery, Medical University of Silesia, Katowice, Poland.
authors: L
authors: L
authors: Cierpka
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D019332:Endothelin-1 / Q000032:analysis / Q000096:biosynthesis*; D007668:Kidney / Q000378:metabolism*; D016030:Kidney Transplantation; D052250:Nitric Oxide Synthase Type III / Q000032:analysis / Q000096:biosynthesis*; D013552:Swine; D014182:Transplantation, Autologous
chemical_list: D019332:Endothelin-1; D052250:Nitric Oxide Synthase Type III