Urinary Endotrophin and Long-term Outcomes in Kidney Transplant Recipients

被引:0
|
作者
Alkaff, Firas F. [1 ,2 ,7 ]
Kremer, Daan [1 ]
Thaunat, Olivier [3 ]
Berger, Stefan P. [1 ]
van den Born, Jacob [1 ]
Genovese, Federica [4 ]
Karsdal, Morten A. [4 ]
Bakker, Stephan J. L. [1 ]
Rasmussen, Daniel G. K. [4 ]
Tepel, Martin [5 ,6 ]
机构
[1] Univ Groningen, Univ Med Ctr Groningen, Dept Internal Med, Div Nephrol, Groningen, Netherlands
[2] Univ Airlangga, Dept Anat Histol & Pharmacol, Div Pharmacol & Therapy, Fac Med, Surabaya, Indonesia
[3] Hop Edouard Herriot, Serv Transplantat Nephrol & Immunol Clin, Hosp Civils Lyon, Lyon, France
[4] Nord Biosci, Herlev, Denmark
[5] Odense Univ Hosp, Dept Nephrol, Odense, Denmark
[6] Univ Southern Denmark, Inst Mol Med, Cardiovasc & Renal Res, Odense, Denmark
[7] Univ Groningen, Univ Med Ctr Groningen, Dept Internal Med, Div Nephrol, Hanzeplein 1, NL-9713 GZ Groningen, Netherlands
来源
TRANSPLANTATION DIRECT | 2024年 / 10卷 / 03期
关键词
FIBROSIS; RISK; MORTALITY; INJURY; SURVIVAL; COLLAGEN; DISEASE; VI;
D O I
10.1097/TXD.0000000000001591
中图分类号
R3 [基础医学]; R4 [临床医学];
学科分类号
1001 ; 1002 ; 100602 ;
摘要
Background.Kidney fibrosis is a suggested cause of kidney failure and premature mortality. Because collagen type VI is closely linked to kidney fibrosis, we aimed to evaluate whether urinary endotrophin, a collagen type VI fragment, is associated with graft failure and mortality among kidney transplant recipients (KTR).Methods.In this prospective cohort study, KTR with a functioning graft >= 1-y posttransplantation were recruited; 24-h urinary endotrophin excretion was measured using an ELISA method. Multivariate Cox regression analyses were performed.Results.A total of 621 KTR (mean age 53 y old, 43% female) at a median of 5.2 y posttransplantation were included. Median 24-h urinary endotrophin excretion was 5.6 (3.1-13.6) mu g/24h. During a median follow-up of 7.5 y, 87 KTR (14%) developed graft failure and 185 KTR (30%) died; 24-h urinary endotrophin excretion was associated with increased risk of graft failure (hazard ratio [95% confidence interva] per doubling = 1.24 [1.08-1.42]) and all-cause mortality (hazard ratio [95% confidence intervals] per doubling = 1.14 [1.03-1.25]) independent of potential confounders including plasma endotrophin concentration. Twenty-four-hour urinary protein excretion was a significant effect modifier for the association with mortality (Pinteraction = 0.002). Twenty-four-hour urinary endotrophin excretion was only significantly associated with mortality in KTR with low levels of proteinuria.Conclusions.Urinary endotrophin is independently associated with an increased risk of graft failure in all KTR and mortality only in KTR with low levels of proteinuria. Further studies with different KTR populations are needed to confirm these findings.
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页数:11
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