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Chinese Journal of Clinicians(Electronic Edition) ›› 2022, Vol. 16 ›› Issue (10): 1005-1011. doi: 10.3877/cma.j.issn.1674-0785.2022.10.015

• Clinical Research • Previous Articles     Next Articles

Effect of initial blood group antibody titer on renal function and immune function in ABO blood type-incompatible live renal transplant receptors

Cheng Qiu1, Shuai Dai1, Lexi Zhang1, Hongtao Liu1,()   

  1. 1. Department of Renal Transplantation, Anhui Provincial Hospital, the First Affiliated Hospital of China University of Science and Technology, Hefei 230001, China
  • Received:2021-10-12 Online:2022-10-15 Published:2023-03-18
  • Contact: Hongtao Liu

Abstract:

Objective

To investigate the effect of the initial blood group antibody titer before renal transplantation on the postoperative renal function and immune function in ABO blood type-incompatible living donor kidney transplant recipients.

Methods

A total of 91 patients who received living donor kidney transplantation at Anhui Provincial Hospital from July 2019 to June 2021 were selected. ABO blood types were incompatible between all kidney transplant donors and recipients. According to the blood group antibody immunoglobulin (Ig)M titer levels of the patients at admission, they were divided into either a high titer group (IgM≥128) or a low titer group (IgM<128). All patients were treated by double filtration plasmapheresis before surgery and then underwent living donor kidney transplantation. Changes of blood group antibody, renal function, cellular immunity, and humoral immunity after operation were compared between the two groups.

Results

There was no significant difference in the levels of blood group antibody IgM or IgG titers at days 1, 3, and 7 after operation, and at the time of discharge between the two groups (P>0.05). Creatinine at days 3 and 7 and at discharge were significantly lower than that at day 1 in both groups (P<0.05), while glomerular filtration rate at days 3 and 7 and at discharge were significantly higher than that at day 1 (P<0.05); there was no statistical difference between the two groups (P>0.05). The levels of CD3+ T cells, CD4+ T cells, CD4+/CD8+ ratio, and NK cells were significantly higher at day 7 and at discharge than at day 1, and at discharge than at day 3 in both groups (P<0.05); there was no statistical difference between the two groups (P>0.05). The levels of IgG, IgA, IgG , C3, and C4 were significantly higher at day 7 and at discharge than at day 1, and at discharge than at day 3 in both groups; the levels of these indexes at discharge were significantly higher in the high titer group higher than in the low titer group (P<0.05).

Conclusion

The initial blood group antibody titer of ABO incompatible living donor kidney transplant recipients has no significant effect on the renal function and cellular immune function of the patients, but the humoral immunity level of patients with a high titer is higher after surgery.

Key words: Blood type antibody, ABO blood type incompatibility, Kidney transplantation, Renal function, Immune function

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