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Predictive values of donor TIMP-2 and IGFBP7 in delayed graft function after kidney transplantation / 中华器官移植杂志
Chinese Journal of Organ Transplantation ; (12): 593-598, 2021.
Article in Chinese | WPRIM | ID: wpr-911689
ABSTRACT

Objective:

To explore the predictive values of tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor binding protein 7 (IGFBP7) in donor sera and lavage fluid on delayed graft function (DGF) in donation after circulatory death (DCD) kidney transplant recipients.

Methods:

A total of 33 eligible kidney donors and 33 corresponding recipients were recruited. Preoperative serum and renal perfusion fluid samples of donors were collected to determine the levels of TIMP-2 and IGFBP7. Patients were grouped according to whether DGF occurred after kidney transplantation and measured indicators analyzed. Independent sample t test was utilized for comparing the groups with normal distribution measurement data. And χ2 test was employed for comparing the groups with normal distribution counting data and Mann-Whitney test for comparing the groups with non-normal distribution measurement data. Receiver operating characteristic (ROC) curve and area under curve (AUC) were used for evaluating the diagnostic efficacy of indicators.

Results:

In donor-DGF group, lavage fluid TIMP-2, product of lavage fluid TIMP-2 and IGFBP7 (TIMP-2×IGFBP7), serum IGFBP7 and product of serum TIMP-2 and IGFBP7 (TIMP-2×IGFBP7) were higher than those in donor-non-DGF group ( P<0.05). The AUC of TIMP-2, TIMP-2×IGFBP7, serum IGFBP7 and serum TIMP-2×IGFBP7 in the diagnosis of DGF were 0.753 (95%CI 0.546~0.959), 0.747 (95%CI 0.510~0.984), 0.824 (95%CI 0.615~1.000) and 0.852 (95%CI 0.660~1.000) respectively.

Conclusions:

Donor serum IGFBP7, donor serum TIMP-2×IGFBP7, lavage fluid TIMP-2 and lavage fluid TIMP-2×IGFBP7 may be used for predicting the occurrence of early DGF after kidney transplantation. Among them, serum TIMP-2×IGFBP7 has the highest diagnostic efficiency and may be an excellent predictor of DGF occurrence.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Organ Transplantation Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Chinese Journal of Organ Transplantation Year: 2021 Type: Article