Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (18): 3247-3254.doi: 10.3969/j.issn.2095-4344.2013.18.003

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Serum cystatin C is considered to monitor the renal function of urinary tract obstruction patients after renal transplantation

Zhang Xin-tao1, Dai Cheng1, Zhang Qing2   

  1. 1 Department of Urology, Shenzhen Second People’s Hospital, Shenzhen  518000, Guangdong Province, China
    2 Department of Transplantation, the First Affiliated Hospital of Jinan University, Guangzhou  510000, Guangdong Province, China
  • Received:2013-01-19 Revised:2013-03-08 Online:2013-04-30 Published:2013-04-30
  • About author:Zhang Xin-tao★, Master, Associate chief physician, Associate professor, Department of Urology, Shenzhen Second People’s Hospital, Shenzhen 518000, Guangdong Province, China zhangxt75@sohu.com

Abstract:

BACKGROUND: As cystatin C cannot be secreted and reabsorbed by the renal tubule, it is considered as an ideal indicator to evaluate the glomerular filtration rate in recent years.
OBJECTIVE: To assess the change of serum cystatin C level in ureteral stenosis patients after renal transplantation and to investigate the effect on the diagnosis of renal function impairment.
METHODS: Eighteen renal transplantation patients with ureteral stenosis and renal insufficiency after renal transplantation were selected from the Department of Urology, Shenzhen Second People’s Hospital and Guangzhou Overseas Chinese Hospital as the case group, while there were 63 healthy cases in the control group whose age and gender were matched with those in the case group. The levels of serum cystatin C, serum creatinine and urea nitrogen were tested before and at 1 month after the treatment of ureteral stenosis, and the correlation was analyzed. 
RESULTS AND CONCLUSION: Compared with the control group, the levels of serum cystatin C, serum creatinine and urea nitrogen in the case group were increased significantly before the treatment of ureteral stenosis (P < 0.01); at 1 month after treatment, the levels of serum cystatin C, serum creatinine and urea nitrogen in the case group were decreased significantly when compared with those before treatment (P < 0.01). The relative analysis results showed that the serum cystatin C level of the ureteral stenosis patients was positively correlated with the levels of serum creatinine and urea nitrogen. It suggests that serum cystatin C can be regarded as one of the monitoring indicators of renal function recovery after renal transplantation.

Key words: organ transplantation, renal transplantation, renal insufficiency, cystatin C, ureteral stenosis, urinary tract obstruction, diagnosis, creatinine, urea nitrogen

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