Volume 10 Issue 2
Mar.  2019
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Article Navigation >  ORGAN TRANSPLANTATION  > 2019  >  10(2): 175-181
Fang Jiali, Chen Zheng, Ma Junjie, et al. Long-term study of pathological changes of living renal grafts from elderly relatives in young recipients[J]. ORGAN TRANSPLANTATION, 2019, 10(2): 175-181. doi: 10.3969/j.issn.1674-7445.2019.02.010
Citation: Fang Jiali, Chen Zheng, Ma Junjie, et al. Long-term study of pathological changes of living renal grafts from elderly relatives in young recipients[J]. ORGAN TRANSPLANTATION, 2019, 10(2): 175-181. doi: 10.3969/j.issn.1674-7445.2019.02.010
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Long-term study of pathological changes of living renal grafts from elderly relatives in young recipients

doi: 10.3969/j.issn.1674-7445.2019.02.010

  • Department of Transplantation, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China

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  • Corresponding author: Chen Zheng, Email: docchenzheng@163.com
  • Received Date: 2018-12-14
    Available Online: 2021-01-19
  • Publish Date: 2019-03-15
    Abstract
  •   Objective  To investigate the safety of young recipients undergoing living donor renal transplantation from elderly relative donors through long-term follow-up of the pathological changes.  Methods  According to the age of donors, 28 young recipients were divided into the observation group (n=14, elderly donors) and control group (n=14, young and middle-aged donors). The 7-year survival after renal transplantation, the serum creatinine (Scr) levels at various postoperative time points were compared between two groups. The chronic pathological injury scores of renal allograft biopsy at time-zero, postoperative 6-month and 7-year were compared between two groups. The expression levels of renal interstitial fibrosis indicators connective tissue growth factor (CTGF), transforming growth factor (TGF)-β, laminin (LN), fibronectin (FN), cell senescence indicators intercellular connexin (Cx)-43 and mammalian target of rapamycin (mTOR) at postoperative 6-month and 7-year were compared between two groups.  Results  The 7-year survival rates in the observation and control groups were 78.5% and 92.8% with no statistical significance (P > 0.05). In the observation and control groups, the levels of Scr were 190 and 160 μmol/L at the postoperative 7 d, and 170 and 125 μmol/L at postoperative 1 month. At each postoperative time point, the levels of Scr in the observation group were significantly higher than those in the control group (all P > 0.05). The total chronic pathological injury scores of renal transplant biopsy at time-zero in the observation group was significantly higher than that in the control group (P > 0.05), whereas the total chronic pathological injury scores at postoperative 7-year did not significantly differ between two groups (P > 0.05). Within either group, the total chronic pathological injury scores at postoperative 7-year was remarkably higher than those at time-zero and postoperative 6-month (both P < 0.05). The expression levels of CTGF, TGF-β, LN, FN, mTOR, Cx43 of renal transplant tissue at postoperative 7-year did not significantly differ between two groups (all P > 0.05).  Conclusions  The long-term follow-up outcomes demonstrate that the pathological changes of young recipients undergoing renal transplantation from elderly donors are similar to those from young and middle-aged donors. It is safe and feasible for young recipients to undergo renal transplantation from elderly donors in the pathological perspective.

     

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