title: The assessment of renalase: searching for the best predictor of early renal dysfunction by multivariate modeling in stable renal transplant recipients.
abstract: BACKGROUND
  Renal transplant dysfunction has been shown to be an independent risk factor for cardiac, non-cardiovascular, and all-cause mortality in post-transplantation follow-up.
  
  
  METHODS
  We enrolled 73 renal transplant recipients who were more than 12 months post-renal transplant surgery, had stable graft function, and were on standard immunosuppression. The purpose of the study was to observe the relation between renal dysfunction and endothelial dysfunction parameters (nitrates, asymmetric and symmetric dimethylarginine, and endothelial nitric oxide synthase), and renalase, and to hypothesize the best predictor of early renal dysfunction by multivariate modeling. The other aim was to observe differences with regard to immunosuppression.
  
  
  RESULTS
  Non-adjusted odds ratio showed a significant risk of reduced glomerular filtration rate in transplant recipients with increased renalase concentration (p=0.026); age-adjusted odds ratio showed a significant risk of reduced glomerular filtration rate with increased renalase concentration (p=0.042), also after multivariable adjustment (p=0.032). Increased plasma endothelial nitric oxide synthase concentration was a protective factor for glomerular filtration rate (p=0.011). After adjustment for age (p=0.045), and after multivariate modeling, endothelial nitric oxide synthase was shown to be a protective factor for glomerular filtration rate (p=0.014). Significant differences in immunosuppression were found in plasma renalase in patients maintained on cyclosporine (p=0.027).
  
  
  CONCLUSIONS
  Renalase was shown to be strong predictor of decreased glomerular filtration rate and was significantly higher in the group of patients on cyclosporine. Endothelial nitric oxide synthase was identified as a strong protective factor for kidney function.
authors.affiliation: Institute of Pathophysiology, Medical Faculty, Nis, Serbia.
authors.forename: Dijana
authors.initials: D
authors.lastname: Stojanovic
authors.affiliation: Institute of Biochemistry, Medical Faculty, Nis, Serbia.
authors.forename: Tatjana
authors.initials: T
authors.lastname: Cvetkovic
authors.affiliation: Departament of Medical Statistics, Medical Faculty, Nis, Serbia.
authors.forename: Miodrag
authors.initials: M
authors.lastname: Stojanovic
authors.affiliation: Institute of Pathophysiology, Medical Faculty, Nis, Serbia.
authors.forename: Vladmila
authors.initials: V
authors.lastname: Bojanic
authors.affiliation: Department of Pharmacy, Medical Faculty, Nis, Serbia.
authors.forename: Nikola
authors.initials: N
authors.lastname: Stefanovic
authors.affiliation: Institute of Biochemistry, Medical Faculty, Nis, Serbia.
authors.forename: Ivana
authors.initials: I
authors.lastname: Stojanovic
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D016572:Cyclosporine / Q000627:therapeutic use; D005260:Female; D005919:Glomerular Filtration Rate; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D007677:Kidney Function Tests; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D008995:Monoamine Oxidase / Q000097:blood*; D051437:Renal Insufficiency / Q000097:blood / Q000175:diagnosis*; D012307:Risk Factors
chemical_list: D015415:Biomarkers; D007166:Immunosuppressive Agents; D016572:Cyclosporine; D008995:Monoamine Oxidase; C521557:renalase