title: Hyperuricemia in kidney transplant recipients with intact graft function.
abstract: OBJECTIVE
  The aim of this study was to investigate the prevalence of hyperuricemia and factors predicting its occurrence, and to establish the relationship over time between serial changes in estimated glomerular filtration rate (eGFR) and uric acid (UR) concentration in kidney transplant (KT) recipients with eGFR >60 mL/min/1.73 m(2).
  
  
  METHODS
  Adult patients who underwent KT at the Asan Medical Center between 1990 and 2008 and maintained eGFR >60 mL/min/1.73 m(2) were retrospectively assessed. Clinical and laboratory data were obtained from inpatient and outpatient charts and from the hospital electronic database.
  
  
  RESULTS
  Of 356 patients, 301 (84.55%) had normal UR levels and 55 (15.45%) had hyperuricemia. After multivariate adjustment, transplant duration, male gender, eGFR, diabetes mellitus (DM), and calcium level were associated with higher mean UR levels. Mean UR level increased significantly and mean eGFR decreased significantly during the first year after transplantation, but there were no significant differences over the next 4 years. Serial UR and eGFR levels changed almost simultaneously.
  
  
  CONCLUSIONS
  Transplantation duration, male gender, eGFR level, DM, and serum calcium level were risk factors for hyperuricemia in kidney recipients with intact graft function. Increased uric acid after KT did not significantly affect graft function.
authors.affiliation: Division of Nephrology, Department of Internation Medicine, Asan Medical Center, Seoul, South Korea.
authors.forename: K M
authors.initials: KM
authors.lastname: Kim
authors.forename: S-S
authors.initials: SS
authors.lastname: Kim
authors.forename: D J
authors.initials: DJ
authors.lastname: Han
authors.forename: W S
authors.initials: WS
authors.lastname: Yang
authors.forename: J S
authors.initials: JS
authors.lastname: Park
authors.forename: S-K
authors.initials: SK
authors.lastname: Park
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D016009:Chi-Square Distribution; D005260:Female; D005919:Glomerular Filtration Rate; D006801:Humans; D033461:Hyperuricemia / Q000097:blood / Q000209:etiology* / Q000503:physiopathology; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D007668:Kidney / Q000503:physiopathology*; D016030:Kidney Transplantation / Q000009:adverse effects*; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D056910:Republic of Korea; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D015854:Up-Regulation; D014527:Uric Acid / Q000097:blood*
chemical_list: D015415:Biomarkers; D007166:Immunosuppressive Agents; D014527:Uric Acid