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Shen X, Wu J, Zhang F, Bi Q, Sun Z, Wang W. Deciphering the impact of senescence in kidney transplant rejection: An integrative machine learning and multi-omics analysis via bulk and single-cell RNA sequencing. PLoS One 2024; 19:e0312272. [PMID: 39602449 PMCID: PMC11602102 DOI: 10.1371/journal.pone.0312272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Accepted: 09/30/2024] [Indexed: 11/29/2024] Open
Abstract
BACKGROUND The demographic shift towards an older population presents significant challenges for kidney transplantation (KTx), particularly due to the vulnerability of aged donor kidneys to ischemic damage, delayed graft function, and reduced graft survival. KTx rejection poses a significant threat to allograft function and longevity of the kidney graft. The relationship between senescence and rejection remains elusive and controversial. METHODS Gene Expression Omnibus (GEO) provided microarray and single-cell RNA sequencing datasets. After integrating Senescence-Related Genes (SRGs) from multiple established databases, differential expression analysis, weighted gene co-expression network analysis (WGCNA), and machine learning algorithms were applied to identify predictive SRGs (pSRGs). A cluster analysis of rejection samples was conducted using the consensus clustering algorithm. Subsequently, we utilized multiple machine learning methods (RF, SVM, XGB, GLM and LASSO) based on pSRGs to develop the optimal Acute Rejection (AR) diagnostic model and long-term graft survival predictive signatures. Finally, we validated the role of pSRGs and senescence in kidney rejection through the single-cell landscape. RESULTS Thirteen pSRGs were identified, correlating with rejection. Two rejection clusters were divided (Cluster C1 and C2). GSVA analysis of two clusters underscored a positive correlation between senescence, KTx rejection occurrence and worse graft survival. A non-invasive diagnostic model (AUC = 0.975) and a prognostic model (1- Year AUC = 0.881; 2- Year AUC = 0.880; 3- Year AUC = 0.883) for graft survival were developed, demonstrating significant predictive capabilities to early detect acute rejection and long-term graft outcomes. Single-cell sequencing analysis provided a detailed cellular-level landscape of rejection, supporting the conclusions drawn from above. CONCLUSION Our comprehensive analysis underscores the pivotal role of senescence in KTx rejection, highlighting the potential of SRGs as biomarkers for diagnosing rejection and predicting graft survival, which may enhance personalized treatment strategies and improve transplant outcomes.
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Affiliation(s)
- Xihao Shen
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Jiyue Wu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Feilong Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Qing Bi
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Zejia Sun
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Wei Wang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
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Savoye E, Santin G, Legeai C, Kerbaul F, Gaillard F, Pastural M. Comparison of Kidney Graft Function and Survival in an Emulated Trial With Living Donors and Brain-Dead Donors. Transpl Int 2024; 37:13208. [PMID: 39267619 PMCID: PMC11391114 DOI: 10.3389/ti.2024.13208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/25/2024] [Indexed: 09/15/2024]
Abstract
Living donation (LD) transplantation is the preferred treatment for kidney failure as compared to donation after brain death (DBD), but age may play a role. We compared the 1-year estimated glomerular filtration rate (eGFR) after kidney transplantation for recipients of LD and DBD stratified by recipient and donor age between 2015 and 2018 in a matched cohort. The strength of the association between donation type and 1-year eGFR differed by recipient age (P interaction < 0.0001). For LD recipients aged 40-54 years versus same-aged DBD recipients, the adjusted odds ratio (aOR) for eGFR ≥60 mL/min/1.73 m2 was 1.48 (95% CI: 1.16-1.90). For DBD recipients aged ≥ 60 years, the aOR was 0.18 (95% CI: 0.12-0.29) versus DBD recipients aged 40-54 years but was 0.91 (95% CI: 0.67-1.24) versus LD recipients aged ≥60 years. In the matched cohort, 4-year graft and patient survival differed by donor age and type. As compared with DBD grafts, LD grafts increased the proportion of recipients with 1-year eGFR ≥60 mL/min/1.73 m2. Recipients aged ≥60 years benefited most from LD transplantation, even if the donor was aged ≥60 years. For younger recipients, large age differences between donor and recipient could also be addressed with a paired exchange program.
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Affiliation(s)
- Emilie Savoye
- Direction Prélèvement Greffe Organes-Tissus, Agence de la Biomédecine, Saint-Denis La Plaine, France
| | - Gaëlle Santin
- Direction Prélèvement Greffe Organes-Tissus, Agence de la Biomédecine, Saint-Denis La Plaine, France
| | - Camille Legeai
- Direction Prélèvement Greffe Organes-Tissus, Agence de la Biomédecine, Saint-Denis La Plaine, France
| | - François Kerbaul
- Direction Prélèvement Greffe Organes-Tissus, Agence de la Biomédecine, Saint-Denis La Plaine, France
| | - François Gaillard
- Service de Transplantation, Néphrologie et Immunologie Clinique, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France
| | - Myriam Pastural
- Direction Prélèvement Greffe Organes-Tissus, Agence de la Biomédecine, Saint-Denis La Plaine, France
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Pruett TL, Martin P, Gupta D. Outcomes of kidneys used for transplantation: an analysis of survival and function. FRONTIERS IN TRANSPLANTATION 2024; 3:1335999. [PMID: 38993770 PMCID: PMC11235350 DOI: 10.3389/frtra.2024.1335999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/19/2024] [Indexed: 07/13/2024]
Abstract
Introduction Kidney transplant recipients expect to survive the procedure with sufficient renal function for reliable dialysis freedom. Methods Transplant outcomes (survival and estimated renal function) were assessed after live and deceased donor transplantation from the US national database. Outcomes were stratified by age (donor and recipient) and donor type. Results Aggregate recipient outcomes were better transplanting living vs deceased donated kidneys. However, when stratified by the one-year renal function (within KDIGO CKD stage stratifications), surviving recipients had clinically similar dialysis-freedom, irrespective of donor type or age. The major outcome differences for recipients of age-stratified live and deceased kidneys was 1) the increasing frequency of one-year graft failures and 2) the increasing likelihood of severely limited renal function (CKD 4/5) with advancing donor age. Over 30% of recipients of deceased kidneys >65 years had either one-year graft failure or severely limited renal function contrasted to less than 15% of recipients of live kidneys aged >65 years. Conclusions Evolving techniques to reduce adverse events after urgent vs elective procedures, plus improved transplant outcome predictability with increased-age deceased donor kidneys using advanced predictive analytics (using age-stratified live kidney transplantation outcomes as a relevant reference point) should facilitate similar kidney transplant outcomes, irrespective of donor type.
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Affiliation(s)
- Timothy L. Pruett
- Division of Transplantation, University of Minnesota School of Medicine, Minneapolis, MN, United States
| | - Paola Martin
- ODT, Kelley School of Business, Indiana University, Bloomington, IN, United States
| | - Diwakar Gupta
- IROM, The McCombs School of Business at University of Texas (Austin), Austin, TX, United States
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Kuo FC, Wu TH, Loong CC, Lin NC, Ou SM, Chen CY. The strategy of diminishing age gap effect on different donor-recipient combinations in living donor kidney transplantation. J Chin Med Assoc 2023; 86:65-71. [PMID: 36279143 DOI: 10.1097/jcma.0000000000000822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The disparity between kidney donation and the number of uremic patients on the waiting list has increased the demand for older live-donor kidneys (OLK). However, the donor-recipient age gap may have an impact on the recipient's outcome. METHODS Patients who underwent living donor kidney transplantation at our institute between 2005 and 2019 were enrolled and categorized into four donor-recipient groups according to age (≥50 years and <50 years). The Estimated Post-Transplant Survival (EPTS) score was used to quantify the recipient's condition. Adjusted models analyzed recipient outcomes and related risks among the four groups. RESULTS Of the 154 pairs of live donors and recipients, OLK did not influence overall or death-censored graft survival. The four donor-recipient combinations had similar recipient outcomes, except it slightly worsened in the "old donor to young recipient" group. The EPTS score (adjusted HR, 1.02; 95% CI, 1.01-1.04; p = 0.014) and rejection (adjusted HR, 4.26; 95% CI, 1.36-13.37; p = 0.013) were significant risk factors for overall and death-censored graft survival, respectively. Recipients with pretransplant diabetes or prior solid organ transplantation could have amplified risk effects. The main causes of graft loss were death in older recipients and chronic rejection in younger recipients. CONCLUSION OLK is safe for young recipients. Nevertheless, adequate immunosuppression should be maintained to prevent rejection and subsequent graft loss, especially for those receiving second kidney transplantation. In contrast, older recipients should avoid overt immunosuppression and control their comorbidities, such as diabetes-related complications to improve their long-term outcomes.
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Affiliation(s)
- Fang-Cheng Kuo
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Tsai-Hun Wu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Nephrology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Che-Chuan Loong
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Niang-Cheng Lin
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Shuo-Ming Ou
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Nephrology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Yen Chen
- Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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Courtney AE, Moorlock G, Van Assche K, Burnapp L, Mamode N, Lennerling A, Dor FJMF. Living Donor Kidney Transplantation in Older Individuals: An Ethical Legal and Psychological Aspects of Transplantation (ELPAT) View. Transpl Int 2023; 36:11139. [PMID: 37152615 PMCID: PMC10161899 DOI: 10.3389/ti.2023.11139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/12/2023] [Indexed: 05/09/2023]
Abstract
Living donor transplantation is the optimal treatment for suitable patients with end-stage kidney disease. There are particular advantages for older individuals in terms of elective surgery, timely transplantation, and early graft function. Yet, despite the superiority of living donor transplantation especially for this cohort, older patients are significantly less likely to access this treatment modality than younger age groups. However, given the changing population demographic in recent decades, there are increasing numbers of older but otherwise healthy individuals with kidney disease who could benefit from living donor transplantation. The complex reasons for this inequity of access are explored, including conscious and unconscious age-related bias by healthcare professionals, concerns relating to older living donors, ethical anxieties related to younger adults donating to aging patients, unwillingness of potential older recipients to consider living donation, and the relevant legislation. There is a legal and moral duty to consider the inequity of access to living donor transplantation, recognising both the potential disparity between chronological and physiological age in older patients, and benefits of this treatment for individuals as well as society.
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Affiliation(s)
- Aisling E. Courtney
- Regional Nephrology and Transplant Unit, Belfast City Hospital, Belfast, United Kingdom
- *Correspondence: Aisling E. Courtney,
| | - Greg Moorlock
- Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Kristof Van Assche
- Research Group Personal Rights and Property Rights, University of Antwerp, Antwerp, Belgium
| | - Lisa Burnapp
- NHS Blood and Transplant, Bristol, United Kingdom
| | - Nizam Mamode
- Department of Surgery, King’s College London, London, United Kingdom
| | - Annette Lennerling
- The Transplant Centre, Sahlgrenska University Hospital, Gothenburg, Sweden
- Institute of Health and Care Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Frank J. M. F. Dor
- Imperial College Renal and Transplant Centre, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
- Department of Surgery and Cancer, Imperial College, London, United Kingdom
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Lim WH, Ooi E, Pilmore HL, Johnson DW, McDonald SP, Clayton P, Hawley C, Mulley WR, Francis R, Collins MG, Jaques B, Larkins NG, Davies CE, Wyburn K, Chadban SJ, Wong G. Interactions Between Donor Age and 12-Month Estimated Glomerular Filtration Rate on Allograft and Patient Outcomes After Kidney Transplantation. Transpl Int 2022; 35:10199. [PMID: 35185379 PMCID: PMC8842263 DOI: 10.3389/ti.2022.10199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/12/2022] [Indexed: 11/25/2022]
Abstract
Reduced estimated glomerular filtration rate (eGFR) at 12-months after kidney transplantation is associated with increased risk of allograft loss, but it is uncertain whether donor age and types modify this relationship. Using Australia and New Zealand registry data, multivariable Cox proportional modelling was used to examine the interactive effects between donor age, types and 12-month eGFR on overall allograft loss. We included 11,095 recipients (4,423 received live-donors). Recipients with lowest 12-month eGFR (<30 ml/min/1.73 m2) experienced the greatest risk of allograft loss, with adjusted HR [95% CI) of 2.65 [2.38–2.95] compared to eGFR of 30–60 ml/min/1.73 m2; whereas the adjusted HR for highest eGFR (>60 ml/min/1.73 m2) was 0.67 [0.62–0.74]. The association of 12-month eGFR and allograft loss was modified by donor age (but not donor types) where a higher risk of allograft loss in recipients with lower compared with higher 12-month eGFR being most pronounced in the younger donor age groups (p < 0.01). Recipients with eGFR <30 ml/min/1.73 m2 12-months after transplantation experienced ≥2.5-fold increased risk of overall allograft loss compared to those with eGFR of >60 ml/min/1.73 m2, and the magnitude of the increased risk is most marked among recipients with younger donors. Careful deliberation of other factors including donor age when considering eGFR as a surrogate for clinical endpoints is warranted.
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Affiliation(s)
- Wai H. Lim
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
- Medical School, University of Western Australia, Perth, WA, Australia
- *Correspondence: Wai H. Lim,
| | - Esther Ooi
- Medical School, University of Western Australia, Perth, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
| | - Helen L. Pilmore
- Department of Renal Medicine, Auckland City Hospital, Auckland, New Zealand
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - David W. Johnson
- Metro South Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Faculty of Medicine, University of Queensland, St Lucia, QLD, Australia
- Translational Research Institute, Brisbane, QLD, Australia
| | - Stephen P. McDonald
- Australia and New Zealand Dialysis and Transplant Registry, Adelaide, SA, Australia
- Central and Northern Adelaide Renal and Transplantation Services, Adelaide, SA, Australia
- South Australia Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Philip Clayton
- Australia and New Zealand Dialysis and Transplant Registry, Adelaide, SA, Australia
- Central and Northern Adelaide Renal and Transplantation Services, Adelaide, SA, Australia
- South Australia Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Carmel Hawley
- Metro South Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Faculty of Medicine, University of Queensland, St Lucia, QLD, Australia
- Translational Research Institute, Brisbane, QLD, Australia
| | - William R. Mulley
- Department of Nephrology, Monash Medical Centre, Melbourne, VIC, Australia
- Department of Medicine, Monash University, Melbourne, VIC, Australia
| | - Ross Francis
- Metro South Integrated Nephrology and Transplant Services, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Faculty of Medicine, University of Queensland, St Lucia, QLD, Australia
| | - Michael G. Collins
- School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
- Department of Renal Medicine, Auckland City Hospital, Auckland, New Zealand
| | - Bryon Jaques
- Western Australia Liver and Kidney Transplant Service, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Nicholas G. Larkins
- Medical School, University of Western Australia, Perth, WA, Australia
- Department of Nephrology, Perth Children’s Hospital, Perth, WA, Australia
| | - Christopher E. Davies
- Australia and New Zealand Dialysis and Transplant Registry, Adelaide, SA, Australia
- South Australia Health and Medical Research Institute, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Kate Wyburn
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Renal Medicine, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Steve J. Chadban
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Renal Medicine, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Germaine Wong
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Centre for Kidney Research, The Children’s Hospital at Westmead, Sydney, NSW, Australia
- Department of Renal Medicine and National Pancreas Transplant Unit, Westmead Hospital, Sydney, NSW, Australia
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Goto S, Oguchi H, Sakai K, Mikami T, Ichikawa D, Yazawa M, Koike J, Furuichi K, Kawabata M, Yokoyama H, Sofue T, Ibuki E, Nishi S. Association between expanded criteria for living kidney donors and renal biopsy findings. J Nephrol 2022; 35:1809-1818. [DOI: 10.1007/s40620-021-01228-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/07/2021] [Indexed: 10/19/2022]
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Wang X, Zu Q, Lu J, Zhang L, Zhu Q, Sun X, Dong J. Effects of Donor-Recipient Age Difference in Renal Transplantation, an Investigation on Renal Function and Fluid Proteome. Clin Interv Aging 2021; 16:1457-1470. [PMID: 34349505 PMCID: PMC8326938 DOI: 10.2147/cia.s314587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/06/2021] [Indexed: 12/18/2022] Open
Abstract
Introduction Our previous study revealed that a young internal environment ameliorated kidney aging by virtue of an animal model of heterochronic parabiosis and a model of heterochronic renal transplantation. In this research, we used proteome to investigate the effects of donor-recipient age difference in clinical renal transplantation. Methods This study included 10 pairs of renal transplantation donors and recipients with an age difference of greater than 20 years to their corresponding recipients/donors. All recipients have received transplantation more than 3 years ago. Renal function and the serum/urine proteomes of the donors and recipients were analyzed. Results The renal function was similar between the young recipients and the old donors. In contrast, the renal function of the young donors was significantly superior to that of the old recipients. Furthermore, 497 and 975 proteins were identified in the serum and urine proteomes, respectively. The content of SLC3A2 in the blood was found to be related to aging, while the contents of SERPINA1 and SERPINA3 in the urine were related to immune functions after renal transplantation. Conclusion This study demonstrated that, in the human body, a younger internal environment could ameliorate kidney aging and provided not only clinical evidence for increasing the age limit of kidney transplant donors but also new information for kidney aging research.
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Affiliation(s)
- Xinning Wang
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Qiang Zu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Jinshan Lu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Lei Zhang
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Qiang Zhu
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Xuefeng Sun
- Department of Nephrology, Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Jun Dong
- Department of Urology, Chinese PLA General Hospital, Beijing, People's Republic of China
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Vrakas G, Weissenbacher A, Ploeg R, Friend P. Effect of Utilizing More Than 20-Year Older Deceased Donor Kidneys for Young Recipients: An Analysis of the UK Registry. EXP CLIN TRANSPLANT 2021; 19:405-410. [PMID: 33877038 DOI: 10.6002/ect.2021.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Despite the wider acceptance of expanded criteria kidneys and the advances in immunosuppression, clinicians remain sceptical when it comes to accepting kidneys from significantly older donors, especially for the young adult recipient population (age ≤40 years). MATERIALS AND METHODS We utilized prospectively maintained data from the United Kingdom Registry and analyzed the deceased donor renal transplant outcomes for 2 cohorts: (1) young recipients who received either a younger kidney or a kidney from a donor who was less than 20 years older (group <20; n = 2072) and (2) young recipients who received a kidney from donors who were 20 or more years older (group ≥20, n = 764). We used life tables for survival and performed Cox regression analysis to identify significant variables. RESULTS Median follow-up was 2918 days. The univariate analysis for graft loss showed the strongest predictors to be donor age, recipient age, recipient ethnicity, and delayed graft function, which retained their significance in the multivariate model. Graft survival rates were 94% versus 90% at 1 year, 86% versus 75% at 5 years, and 75% versus 63% at 10 years for group <20 versus group ≥20, respectively. Respective patient survival rates were comparable for both cohorts: 99% versus 98% at 1 year, 97% versus 96% at 5 years, and 91% versus 91% at 10 years. CONCLUSIONS Our analysis showed that allografts from ≥20-year-older deceased donors are beneficial and should be considered for transplant in younger recipients. Allograft survival may be worse compared with survival with younger allografts; however, young recipients do potentially better and survive longer compared with remaining on dialysis.
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Affiliation(s)
- Georgios Vrakas
- From the Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA.,From the Oxford Transplant Centre, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom
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10
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A Propensity Score-weighted Comparison of Outcomes Between Living and Standard Criteria Deceased Donor Kidney Transplant Recipients. Transplantation 2021; 104:e317-e327. [PMID: 32496358 DOI: 10.1097/tp.0000000000003337] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Consider a theoretical situation in which 2 patients with similar baseline characteristics receive a kidney transplant on the same day: 1 from a standard criteria deceased donor, the other from a living donor. Which kidney transplant will last longer? METHODS We conducted a population-based cohort study using linked administrative healthcare databases from Ontario, Canada, from January 1, 2005, to March 31, 2014, to evaluate several posttransplant outcomes in individuals who received a kidney transplant from a standard criteria deceased donor (n = 1523) or from a living donor (n = 1373). We used PS weighting using overlap weights, a novel weighting method that emphasizes the population of recipients with the most overlap in baseline characteristics. RESULTS Compared with recipients of a living donor, the rate of all-cause graft failure was not statistically higher for recipients of a standard criteria deceased donor (hazard ratio, 1.1; 95% confidence interval [CI], 0.8-1.6). Recipients of a standard criteria deceased donor, compared with recipients of a living donor had a higher rate of delayed graft function (23.6% versus 18.7%; odds ratio, 1.3; 95% CI, 1.0-1.6) and a longer length of stay for the kidney transplant surgery (mean difference, 1.7 d; 95% CI, 0.5-3.0). CONCLUSIONS After accounting for many important donor and recipient factors, we failed to observe a large difference in the risk of all-cause graft failure for recipients of a standard criteria deceased versus living donor. Some estimates were imprecise, which meant we could not rule out the presence of smaller clinically important effects.
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Wang Y, Wang Y, Yang M, Ma X. Implication of cellular senescence in the progression of chronic kidney disease and the treatment potencies. Biomed Pharmacother 2021; 135:111191. [PMID: 33418306 DOI: 10.1016/j.biopha.2020.111191] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/18/2020] [Accepted: 12/26/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic kidney disease (CKD) is an increasing major public health problem worldwide. And CKD shares numerous phenotypic similarities with kidney as well as systemic ageing. Cellular senescence is mainly characterized by a stable cell cycle arrest, senescence-associated secretory phenotype (SASP) and senescent cell anti-apoptotic pathways (SCAPs). Herein, the regulations and the internal mechanisms of cellular senescence will be discussed. Meanwhile, efforts are made to give a comprehensive overview of the recent advances of the implication of cellular senescence in CKD. To date, numerous studies have focused on the effects of ageing risk factors in kidney and thereby trying to interrupt the kidney ageing processes with senolytics. Interestingly, some of them showed enormous clinical application potentials. Therefore, senotherapeutics can be applied as novel potential strategies for the treatment of CKD.
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Affiliation(s)
- Yao Wang
- Department of Nephrology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China
| | - Ying Wang
- Department of Endocrinology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China
| | - Ming Yang
- Department of Nephrology, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China.
| | - Xingjie Ma
- Department of Intensive Care, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu, China.
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12
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Fang Y, Gong AY, Haller ST, Dworkin LD, Liu Z, Gong R. The ageing kidney: Molecular mechanisms and clinical implications. Ageing Res Rev 2020; 63:101151. [PMID: 32835891 PMCID: PMC7595250 DOI: 10.1016/j.arr.2020.101151] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/07/2020] [Accepted: 08/17/2020] [Indexed: 12/11/2022]
Abstract
As human life expectancy keeps increasing, ageing populations present a growing challenge for clinical practices. Human ageing is associated with molecular, structural, and functional changes in a variety of organ systems, including the kidney. During the ageing process, the kidney experiences progressive functional decline as well as macroscopic and microscopic histological alterations, which are accentuated by systemic comorbidities like hypertension and diabetes mellitus, or by preexisting or underlying kidney diseases. Although ageing per se does not cause kidney injury, physiologic changes associated with normal ageing processes are likely to impair the reparative capacity of the kidney and thus predispose older people to acute kidney disease, chronic kidney disease and other renal diseases. Mechanistically, cell senescence plays a key role in renal ageing, involving a number of cellular signaling mechanisms, many of which may be harnessed as international targets for slowing or even reversing kidney ageing. This review summarizes the clinical characteristics of renal ageing, highlights the latest progresses in deciphering the role of cell senescence in renal ageing, and envisages potential interventional strategies and novel therapeutic targets for preventing or improving renal ageing in the hope of maintaining long-term kidney health and function across the life course.
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Affiliation(s)
- Yudong Fang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Division of Nephrology, University of Toledo College of Medicine, Toledo, Ohio, USA
| | - Athena Y Gong
- Division of Nephrology, University of Toledo College of Medicine, Toledo, Ohio, USA
| | - Steven T Haller
- Division of Cardiology, University of Toledo College of Medicine, Toledo, Ohio, USA
| | - Lance D Dworkin
- Department of Medicine, University of Toledo College of Medicine, Toledo, Ohio, USA
| | - Zhangsuo Liu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Rujun Gong
- Division of Nephrology, University of Toledo College of Medicine, Toledo, Ohio, USA; Department of Medicine, University of Toledo College of Medicine, Toledo, Ohio, USA; Department of Physiology and Pharmacology, University of Toledo College of Medicine, Toledo, Ohio, USA.
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13
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Abd ElHafeez S, Noordzij M, Kramer A, Bell S, Savoye E, Abad Diez JM, Lundgren T, Reisaeter AV, Kerschbaum J, Santiuste de Pablos C, Ortiz F, Collart F, Palsson R, Arici M, Heaf JG, Massy ZA, Jager KJ. The association of living donor source with patient and graft survival among kidney transplant recipients in the ERA-EDTA Registry - a retrospective study. Transpl Int 2020; 34:76-86. [PMID: 33022814 PMCID: PMC7821376 DOI: 10.1111/tri.13759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/21/2020] [Accepted: 09/28/2020] [Indexed: 11/28/2022]
Abstract
In this study we aimed to compare patient and graft survival of kidney transplant recipients who received a kidney from a living‐related donor (LRD) or living‐unrelated donor (LUD). Adult patients in the ERA‐EDTA Registry who received their first kidney transplant in 1998–2017 were included. Ten‐year patient and graft survival were compared between LRD and LUD transplants using Cox regression analysis. In total, 14 370 patients received a kidney from a living donor. Of those, 9212 (64.1%) grafts were from a LRD, 5063 (35.2%) from a LUD and for 95 (0.7%), the donor type was unknown. Unadjusted five‐year risks of death and graft failure (including death as event) were lower for LRD transplants than for LUD grafts: 4.2% (95% confidence interval [CI]: 3.7–4.6) and 10.8% (95% CI: 10.1–11.5) versus 6.5% (95% CI: 5.7–7.4) and 12.2% (95% CI: 11.2–13.3), respectively. However, after adjusting for potential confounders, associations disappeared with hazard ratios of 0.99 (95% CI: 0.87–1.13) for patient survival and 1.03 (95% CI: 0.94–1.14) for graft survival. Unadjusted risk of death‐censored graft failure was similar, but after adjustment, it was higher for LUD transplants (1.19; 95% CI: 1.04–1.35). In conclusion, patient and graft survival of LRD and LUD kidney transplant recipients was similar, whereas death‐censored graft failure was higher in LUD. These findings confirm the importance of both living kidney donor types.
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Affiliation(s)
- Samar Abd ElHafeez
- Epidemiology Department, High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Marlies Noordzij
- Department of Medical Informatics, ERA-EDTA Registry, Amsterdam UMC, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Anneke Kramer
- Department of Medical Informatics, ERA-EDTA Registry, Amsterdam UMC, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Samira Bell
- Scottish Renal Registry, Meridian Court, Information Services Division Scotland, Glasgow, UK.,Division of Population Health and Genomics, University of Dundee, Dundee, UK
| | - Emilie Savoye
- Agence de la biomédecine, Direction Prélèvement Greffe Organes-Tissus, Saint-Denis La Plaine, France
| | | | - Torbjörn Lundgren
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Varberg Reisaeter
- Department of Transplantation Medicine, Oslo University hospital, Rikshospitalet, Norway
| | - Julia Kerschbaum
- Austrian Dialysis and Transplant Registry, Department for Internal Medicine IV - Nephrology and Hypertension, Medical University Innsbruck, Innsbruck, Austria
| | - Carmen Santiuste de Pablos
- Murcia Renal Registry, Department of Epidemiology, Murcia Regional Health Authority, IMIB-Arrixaca, Murcia, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Fernanda Ortiz
- Abdominal Center Unit, HUS Helsinki University Hospital, Helsinki, Finland
| | | | - Runolfur Palsson
- Division of Nephrology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Mustafa Arici
- Department of Nephrology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - James G Heaf
- Department of Medicine, Zealand University Hospital, Roskilde, Denmark
| | - Ziad A Massy
- Division of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM) Unit 1018 team5, Research Centre in Epidemiology and Population Health (CESP), University of Paris Ouest-Versailles-St Quentin-en-Yveline, Villejuif, France
| | - Kitty J Jager
- Department of Medical Informatics, ERA-EDTA Registry, Amsterdam UMC, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
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14
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Lim WH, Wong G. Complex kidney donors: should we stretch our limits? Transpl Int 2020; 33:1390-1392. [PMID: 32725686 DOI: 10.1111/tri.13705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 07/22/2020] [Indexed: 12/01/2022]
Affiliation(s)
- Wai H Lim
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Nedlands, WA, Australia.,School of Medicine, University of Western Australia, Perth, WA, Australia
| | - Germaine Wong
- Centre for Kidney Research, Children's Hospital at Westmead, Sydney, NSW, Australia.,School of Public Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia.,Department of Renal Medicine and Transplantation Service, Westmead Hospital, Sydney, NSW, Australia
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15
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Rincon Cintra da Cruz P, Cabral Dias Filho A, Santana VBBM, Biela Boaretto RB, Zanettini Riccetto CL. Donor Age Amplifies the Detrimental Effects of Cold Ischemia Time on Long-Term Kidney Allograft Survival Independently of the Occurrence of Delayed Graft Function or Early Acute Rejection. EXP CLIN TRANSPLANT 2020; 18:436-443. [PMID: 32552628 DOI: 10.6002/ect.2020.0066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES We investigated the influence of the interaction between donor age and cold ischemia time on allograft survival in the absence of delayed graft function, early acute rejection, or the combination of both. MATERIALS AND METHODS We conducted a retrospective analysis of a cohort of patients first transplanted with living-related and deceased-donor allografts between 2001 and 2016. Predictors included cold ischemia time, donor and recipient age and sex, body mass index, renal replacement therapy duration, cause of end-stage renal disease, HLA class I and II mismatches, panel of reactive antibodies score, donor creatinine concentration, development of delayed graft function, and biopsy-proven acute rejection. The response variable was time until return to renal replacement therapy. Patients who died with functioning allografts were censored at the time of death. Analyses included multivariate Cox proportional hazards regression. RESULTS The study included 498 patients followed for median of 4.1 years with median cold ischemia time of 17.0 hours. On multivariate analysis, allograft survival was negatively affected by the cold ischemia time-donor age interaction (P = .026), acute rejection (P = .043), delayed graft function (P = .001), and acute rejection combined with delayed graft function (P = .002). Restricted mean allograft survival times in patients who developed neither delayed graft function nor acute rejection decreased from 13.6 to 8.6 years when cold ischemia time increased from 12 to 36 hours and donor age increased from 30 to 60 years. CONCLUSIONS Allograft survival was negatively affected by donor age-cold ischemia time interaction independently of the development of delayed graft function, acute rejection, or their combination.
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Affiliation(s)
- Pedro Rincon Cintra da Cruz
- From the Department of Urology and Kidney Transplantation, Base Hospital of the Federal District, Brasília-DF, Brazil
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16
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Docherty MH, O'Sullivan ED, Bonventre JV, Ferenbach DA. Cellular Senescence in the Kidney. J Am Soc Nephrol 2019; 30:726-736. [PMID: 31000567 DOI: 10.1681/asn.2018121251] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Senescent cells have undergone permanent growth arrest, adopt an altered secretory phenotype, and accumulate in the kidney and other organs with ageing and injury. Senescence has diverse physiologic roles and experimental studies support its importance in nephrogenesis, successful tissue repair, and in opposing malignant transformation. However, recent murine studies have shown that depletion of chronically senescent cells extends healthy lifespan and delays age-associated disease-implicating senescence and the senescence-associated secretory phenotype as drivers of organ dysfunction. Great interest is therefore focused on the manipulation of senescence as a novel therapeutic target in kidney disease. In this review, we examine current knowledge and areas of ongoing uncertainty regarding senescence in the human kidney and experimental models. We summarize evidence supporting the role of senescence in normal kidney development and homeostasis but also senescence-induced maladaptive repair, renal fibrosis, and transplant failure. Recent studies using senescent cell manipulation and depletion as novel therapies to treat renal disease are discussed, and we explore unanswered questions for future research.
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Affiliation(s)
| | - Eoin D O'Sullivan
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK.,Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK; and
| | - Joseph V Bonventre
- Renal Division and Division of Engineering in Medicine, Brigham and Women's Hospital, Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - David A Ferenbach
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK; .,Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK; and
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17
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Ischemia-Reperfusion Injury in Aged Livers-The Energy Metabolism, Inflammatory Response, and Autophagy. Transplantation 2018; 102:368-377. [PMID: 29135887 DOI: 10.1097/tp.0000000000001999] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Because of the lack of adequate organs, the number of patients with end-stage liver diseases, acute liver failure or hepatic malignancies waiting for liver transplantation is constantly increasing. Accepting aged liver grafts is one of the strategies expanding the donor pool to ease the discrepancy between the growing demand and the limited supply of donor organs. However, recipients of organs from old donors may show an increased posttransplantation morbidity and mortality due to enhanced ischemia-reperfusion injury. Energy metabolism, inflammatory response, and autophagy are 3 critical processes which are involved in the aging progress as well as in hepatic ischemia-reperfusion injury. Compared with young liver grafts, impairment of energy metabolism in aged liver grafts leads to lower adenosine triphosphate production and an enhanced generation of free radicals, both aggravating the inflammatory response. The aggravated inflammatory response determines the extent of hepatic ischemia-reperfusion injury and augments the liver damage. Autophagy protects cells by removal of damaged organelles, including dysfunctional mitochondria, a process impaired in aging and involved in ischemia-reperfusion-related apoptotic cell death. Furthermore, autophagic degradation of cellular compounds relieves intracellular adenosine triphosphate level for the energy depressed cells. Strategies targeting the mechanisms involved in energy metabolism, inflammatory response, and autophagy might be especially useful to prevent the increased risk for ischemia-reperfusion injury in aged livers after major hepatic surgery.
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18
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Trnka P, McTaggart SJ, Francis A. The impact of donor/recipient age difference and HLA mismatch on graft outcome in pediatric kidney transplantation. Pediatr Transplant 2018; 22:e13265. [PMID: 29992708 DOI: 10.1111/petr.13265] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/10/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Understanding the relationship between the factors that influence long-term kidney transplant survival remains a key priority for pediatric nephrologists. We assessed the relative impact of donor/recipient age difference and HLA matching on long-term graft outcomes. METHODS We conducted a retrospective cohort study of pediatric and adolescent recipients who received a primary kidney transplant in Australia and New Zealand between January 1, 1990, and December 31, 2015. The primary outcome was graft survival analyzed by Kaplan-Meier method. RESULTS During the 26-year period, 1134 primary (395 DD and 739 LD) kidney transplants were performed in recipients less than 20 years of age. The median follow-up time was 10.2 years. Overall, 405 patients (35.7%) lost their transplant with graft survival 93.8% at 1 year, 82.5% at 5 years, 65.8% at 10 years, and 49.9% at 15 years post-transplant. There was consistently higher graft loss of DD kidneys as compared to LD kidneys at each time point. Both increasing donor/recipient age difference (aHR 1.11 per 10 years; 95% CI, 1.02-1.20; P = 0.009) and increasing HLA mismatch (aHR 1.20 per mismatch; 95% CI, 1.10-1.30; P < 0.001) were associated with decreased graft survival. CONCLUSIONS Donor/recipient age difference and HLA matching are important factors influencing long-term graft outcomes in pediatric kidney transplantation. HLA mismatch remains a strong predictor of graft loss. For patients without the option of a LD, we suggest that the degree of HLA mismatch should not be discounted as part of the decision-making process of organ allocation.
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Affiliation(s)
- Peter Trnka
- Child and Adolescent Renal Service, Children's Health Queensland, South Brisbane, Australia.,School of Medicine, University of Queensland, Brisbane, Australia
| | - Steven J McTaggart
- Child and Adolescent Renal Service, Children's Health Queensland, South Brisbane, Australia.,School of Medicine, University of Queensland, Brisbane, Australia
| | - Anna Francis
- Child and Adolescent Renal Service, Children's Health Queensland, South Brisbane, Australia.,School of Medicine, University of Queensland, Brisbane, Australia
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19
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Zafar MN, Wong G, Aziz T, Abbas K, Adibul Hasan Rizvi S. Living donor risk model for predicting kidney allograft and patient survival in an emerging economy. Nephrology (Carlton) 2018; 23:279-286. [PMID: 27943514 DOI: 10.1111/nep.12983] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 12/06/2016] [Accepted: 12/08/2016] [Indexed: 01/10/2023]
Abstract
AIM Living donor kidney is the main source of donor organs in low to middle income countries. We aimed to develop a living donor risk model that predicts graft and patient survival in an emerging economy. METHODS We used data from the Sindh Institute of Urology and Transplantation (SIUT) database (n = 2283 recipients and n = 2283 living kidney donors, transplanted between 1993 and 2009) and conducted Cox proportional hazard analyses to develop a composite score that predicts graft and patient survivals. RESULTS Donor factors age, creatinine clearance, nephron dose (estimated by donor/recipient body weight ratio) and human leukocyte antigen (HLA) match were included in the living donor risk model. The adjusted hazard ratios (HRs) for graft failures among those who received a kidney with living donor scores (reference to donor score of zero) of 1, 2, 3 and 4 were 1.14 (95%CI: 0.94-1.39), 1.24 (95%CI:1.03-1.49), 1.25 (95%CI:1.03-1.51) and 1.36 (95%CI:1.08-1.72) (P-value for trend =0.05). Similar findings were observed for patient survival. CONCLUSIONS Similar to findings in high income countries, our study suggests that donor characteristics such as age, nephron dose, creatinine clearance and HLA match are important factors that determine the long-term patient and graft survival in low income countries. However, other crucial but undefined factors may play a role in determining the overall risk of graft failure and mortality in living kidney donor transplant recipients.
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Affiliation(s)
- Mirza Naqi Zafar
- Department of Pathology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - Germaine Wong
- Sydney School of Public Health, University of Sydney, Sydney, New South Wales, Australia
| | - Tahir Aziz
- Department of Nephrology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - Khawar Abbas
- Department of Pathology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - S Adibul Hasan Rizvi
- Department of Urology, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
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20
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Lee D, Whitlam JB, Cook N, Walker AM, Roberts MA, Ierino FL, Kausman JY. Lifetime risk of end-stage kidney disease in living donors for paediatric kidney transplant recipients in Australia and New Zealand - a retrospective study. Transpl Int 2018; 31:1144-1152. [PMID: 29846984 DOI: 10.1111/tri.13284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 05/17/2018] [Indexed: 11/28/2022]
Abstract
Living kidney donors (LKD) for paediatric kidney transplant recipients (KTR) have a heightened motivation to donate for emotional reasons and the clear health benefits to the KTR. We hypothesized that the cohort of LKD for paediatric KTR (LKD-P) includes motivated young parents with a higher lifetime end-stage kidney disease (ESKD) risk compared to adult KTR (LKD-A). Data from the Australia and New Zealand Dialysis and Transplant LKD Registry (2004-2015) was analysed to compare baseline characteristics and predonation ESKD risk in LKD-P (n = 315) versus LKD-A (n = 3448). LKD-P were younger (median age 42 vs. 50 years; P < 0.001) and had a marginally higher lifetime ESKD risk (median 0.44% vs. 0.40%; P < 0.01), with a similar proportion of LKD exceeding 1% risk threshold (5.4% vs. 5.6%; P = NS). Compared to grandparents as LKD-P, parents (median age 41 vs. 59 years; P < 0.001) had a higher lifetime ESKD (0.44% vs. 0.25%; P < 0.001). Although unique benefits to paediatric KTR justify the minor increase in lifetime ESKD risk in young parents, carefully selected grandparents are an alternative LKD-P option, allowing parents to donate for subsequent transplants.
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Affiliation(s)
- Darren Lee
- Department of Renal Medicine, Eastern Health, Box Hill, Vic., Australia.,Eastern Health Clinical School, Monash University, Clayton, Vic., Australia.,Department of Nephrology, Austin Health, Heidelberg, Vic., Australia
| | - John B Whitlam
- Department of Nephrology, Austin Health, Heidelberg, Vic., Australia.,University of Melbourne, Parkville, Vic., Australia
| | - Natasha Cook
- Department of Nephrology, Austin Health, Heidelberg, Vic., Australia.,University of Melbourne, Parkville, Vic., Australia
| | - Amanda M Walker
- University of Melbourne, Parkville, Vic., Australia.,Department of Nephrology, Royal Children's Hospital, Parkville, Vic., Australia.,Murdoch Children's Research Institute, Parkville, Vic., Australia
| | - Matthew A Roberts
- Department of Renal Medicine, Eastern Health, Box Hill, Vic., Australia.,Eastern Health Clinical School, Monash University, Clayton, Vic., Australia
| | - Francesco L Ierino
- University of Melbourne, Parkville, Vic., Australia.,Department of Nephrology, St Vincent's Hospital Melbourne, Fitzroy, Vic., Australia
| | - Joshua Y Kausman
- University of Melbourne, Parkville, Vic., Australia.,Department of Nephrology, Royal Children's Hospital, Parkville, Vic., Australia.,Murdoch Children's Research Institute, Parkville, Vic., Australia
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21
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Cardinal H, Dieudé M, Hébert MJ. Endothelial Dysfunction in Kidney Transplantation. Front Immunol 2018; 9:1130. [PMID: 29875776 PMCID: PMC5974048 DOI: 10.3389/fimmu.2018.01130] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 05/04/2018] [Indexed: 12/17/2022] Open
Abstract
Kidney transplantation entails a high likelihood of endothelial injury. The endothelium is a target of choice for injury by ischemia-reperfusion, alloantibodies, and autoantibodies. A certain degree of ischemia-reperfusion injury inevitably occurs in the immediate posttransplant setting and can manifest as delayed graft function. Acute rejection episodes, whether T-cell or antibody-mediated, can involve the graft micro- and macrovasculature, leading to endothelial injury and adverse long-term consequences on graft function and survival. In turn, caspase-3 activation in injured and dying endothelial cells favors the release of extracellular vesicles (apoptotic bodies and apoptotic exosome-like vesicles) that further enhance autoantibody production, complement deposition, and microvascular rarefaction. In this review, we present the evidence for endothelial injury, its causes and long-term consequences on graft outcomes in the field of kidney transplantation.
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Affiliation(s)
- Héloïse Cardinal
- Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada.,Canadian National Transplant Research Program, Montreal, QC, Canada.,University of Montreal, Montreal, QC, Canada
| | - Mélanie Dieudé
- Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada.,Canadian National Transplant Research Program, Montreal, QC, Canada
| | - Marie-Josée Hébert
- Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, Canada.,Canadian National Transplant Research Program, Montreal, QC, Canada.,University of Montreal, Montreal, QC, Canada
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22
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van Willigenburg H, de Keizer PLJ, de Bruin RWF. Cellular senescence as a therapeutic target to improve renal transplantation outcome. Pharmacol Res 2018; 130:322-330. [PMID: 29471104 DOI: 10.1016/j.phrs.2018.02.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/02/2018] [Accepted: 02/12/2018] [Indexed: 01/18/2023]
Abstract
Kidney transplants from aged donors are more vulnerable to ischemic injury, suffer more from delayed graft function and have a lower graft survival compared to kidneys from younger donors. On a cellular level, aging results in an increase in cells that are in a permanent cell cycle arrest, termed senescence, which secrete a range of pro-inflammatory cytokines and growth factors. Consequently, these senescent cells negatively influence the local milieu by causing inflammaging, and by reducing the regenerative capacity of the kidney. Moreover, the oxidative damage that is inflicted by ischemia-reperfusion injury during transplantation can induce senescence and accelerate aging. In this review, we describe recent developments in the understanding of the biology of aging that have led to the development of a new class of therapeutic agents aimed at eliminating senescent cells. These compounds have already shown to be able to restore tissue homeostasis in old mice, improve kidney function and general health- and lifespan. Use of these anti-senescence compounds holds great promise to improve the quality of marginal donor kidneys as well as to remove senescent cells induced by ischemia-reperfusion injury. Altogether, senescent cell removal may increase the donor pool, relieving the growing organ shortage and improve long-term transplantation outcome.
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Affiliation(s)
- Hester van Willigenburg
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Peter L J de Keizer
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands; Department of Molecular Cancer Research, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Ron W F de Bruin
- Department of Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands
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Abstract
PURPOSE OF REVIEW Kidney transplantation from a living kidney donor (LKD) is associated with better long-term survival and quality of life for a patient with end-stage renal disease (ESRD) than dialysis. We reviewed recent literature on the acceptability and outcomes of older adults as LKDs, which may be misunderstood in routine care. RECENT FINDINGS Studies report that receiving a kidney from an older LKD is associated with worse recipient and graft survival compared with receiving a kidney from a younger LKD, but similar recipient and graft survival to receiving a kidney from a standard criteria deceased donor. A kidney from a younger vs. older LKD results in better graft survival in younger recipients, whereas the graft survival is similar in older recipients. Compared with healthy matched nondonors, older LKDs have a similar risk of death and cardiovascular disease and the absolute risk of ESRD after 15 years remains less than 1%. The estimated predonation and postdonation lifetime risk of ESRD varies by age, sex and race with lower incidences in individuals who are older, female and white (vs. African-American). SUMMARY Donor and recipient outcomes from several studies support the acceptability of older adults as LKDs.
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Affiliation(s)
- Ngan N Lam
- aDepartment of Medicine, Division of Nephrology, University of Alberta, Edmonton, Alberta bDepartment of Medicine, Division of Nephrology, Western University, London, Ontario, Canada
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24
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Thuret R, Kleinclauss F, Terrier N, Timsit MO. [Deceased donation in renal transplantation]. Prog Urol 2016; 26:909-939. [PMID: 27727092 DOI: 10.1016/j.purol.2016.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 08/23/2016] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To review epidemiologic data's and medical results of deceased donation in renal transplantation. MATERIAL AND METHODS Relevant publications were identified through Medline (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) database using the following keywords, alone or in association, "brain death; cardiac arrest; deceased donation; organ procurement; transplantation". Articles were selected according to methods, language of publication and relevance. The reference lists were used to identify additional historical studies of interest. Both prospective and retrospective series, in French and English, as well as review articles and recommendations were selected. In addition, French national transplant and health agencies (http://www.agence-biomedecine.fr and http://www.has-sante.fr) databases were screened using identical keywords. A total of 2498 articles, 8 official reports and 17 newspaper articles were identified; after careful selection 157 publications were eligible for our review. RESULTS Deceased donation may involve either brain death or non-heartbeating donors (NHBD). Organ shortage led to the procurement of organs from expanded-criteria donors, with an increased age at donation and extended vascular disease, leading to inferior results after transplantation and underlining the need for careful donor management during brain death or cardiac arrest. Evolution of French legislation covering bioethics allowed procurement from Maastricht categories II and recently III non-heartbeating donors. CONCLUSION The increase of organ shortage emphasizes the need for a rigorous surgical technique during procurement to avoid loss of transplants. A history or current neoplasm in deceased-donors, requires attention to increase the pool of organs without putting the recipients at risk for cancer transmission. French NHBD program, especially from Maastricht category III, may stand for a potential source of valuable organs.
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Affiliation(s)
- R Thuret
- Service d'urologie et transplantation rénale, CHU de Montpellier, 34090 Montpellier, France; Université de Montpellier, 34090 Montpellier, France.
| | - F Kleinclauss
- Service d'urologie et transplantation rénale, CHRU de Besançon, 25030 Besançon, France; Université de Franche-Comté, 25030 Besançon, France; Inserm UMR 1098, 25030 Besançon, France
| | - N Terrier
- Service d'urologie et transplantation rénale, CHU de Grenoble, 38000 Grenoble, France
| | - M O Timsit
- Service d'urologie, hôpital européen Georges-Pompidou, AP-HP, 75015 Paris, France; Université Paris Descartes, 75006 Paris, France
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Sosa Peña MDP, Lopez-Soler R, Melendez JA. Senescence in chronic allograft nephropathy. Am J Physiol Renal Physiol 2016; 315:F880-F889. [PMID: 27306980 DOI: 10.1152/ajprenal.00195.2016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Despite increasing numbers of patients on dialysis, the numbers of renal transplants performed yearly have remained relatively static. During the last 50 years, there have been many advances in the pharmacology of prevention of organ rejection. However, most patients will suffer from a slow but steady decline in renal function leading to graft loss. The most common cause of long-term graft loss is chronic allograft nephropathy (CAN). Therefore, elucidating and understanding the mechanisms involved in CAN is crucial for achieving better posttransplant outcomes. It is thought that the development of epithelial to mesenchymal transition (EMT) in proximal tubules is one of the first steps towards CAN, and has been shown to be a result of cellular senescence. Cells undergoing senescence acquire a senescence associated secretory phenotype (SASP) leading to the production of interleukin-1 alpha (IL-1α), which has been implicated in several degenerative and inflammatory processes including renal disease. A central mediator in SASP activation is the production of reactive oxygen species (ROS), which are produced in response to numerous physiological and pathological stimuli. This review explores the connection between SASP and the development of EMT/CAN in an effort to suggest future directions for research leading to improved long-term graft outcomes.
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Affiliation(s)
| | - Reynold Lopez-Soler
- Albany Medical Center, Department of Surgery, Division of Transplantation, Albany, New York
| | - J Andrés Melendez
- SUNY Polytechnic Institute, Colleges of Nanoscale Science and Engineering, Albany, New York
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26
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Querard AH, Foucher Y, Combescure C, Dantan E, Larmet D, Lorent M, Pouteau LM, Giral M, Gillaizeau F. Comparison of survival outcomes between Expanded Criteria Donor and Standard Criteria Donor kidney transplant recipients: a systematic review and meta-analysis. Transpl Int 2016; 29:403-15. [PMID: 26756928 DOI: 10.1111/tri.12736] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 11/03/2015] [Accepted: 12/16/2015] [Indexed: 12/31/2022]
Abstract
In 2002, the United Network for Organ Sharing proposed increasing the pool of donor kidneys to include Expanded Criteria Donor (ECD). Outside the USA, the ECD definition remains the one used without questioning whether such a graft allocation criterion is valid worldwide. We performed a meta-analysis to quantify the differences between ECD and Standard Criteria Donor (SCD) transplants. We paid particular attention to select studies in which the methodology was appropriate and we took into consideration the geographical area. Thirty-two publications were included. Only five studies, all from the USA, reported confounder-adjusted hazard ratios comparing the survival outcomes between ECD and SCD kidney transplant recipients. These five studies confirmed that ECD recipients seemed to have poorer prognosis. From 29 studies reporting appropriate survival curves, we estimated the 5-year pooled nonadjusted survivals for ECD and SCD recipients. The relative differences between the two groups were lower in Europe than in North America, particularly for death-censored graft failure. It is of primary importance to propose appropriate studies for external validation of the ECD criteria in non-US kidney transplant recipients.
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Affiliation(s)
- Anne-Hélène Querard
- Nephrology, Dialysis, Transplantation, Centre Hospitalier Départemental de Vendée, La Roche sur Yon, France.,EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France.,Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France
| | - Yohann Foucher
- EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France.,Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France
| | - Christophe Combescure
- CRC & Division of Clinical Epidemiology, Department of Health and Community Medicine, University of Geneva & University Hospitals of Geneva, Geneva, Switzerland
| | - Etienne Dantan
- EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France
| | - David Larmet
- Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France
| | - Marine Lorent
- EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France
| | - Lise-Marie Pouteau
- Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France
| | - Magali Giral
- EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France.,Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France.,LabEx Transplantex Nantes, Centre d'Investigation Clinique Biothérapie, Nantes, France
| | - Florence Gillaizeau
- EA 4275 SPHERE - bioStatistics, Pharmacoepidemiology and Human sciEnces REsearch, Nantes University, Nantes, France.,Institute for Transplantation, Urology and Nephrology ITUN, CHU Nantes, RTRS 'Centaure', Inserm U1064, Nantes University, Nantes, France
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Simmonds MJ. Using Genetic Variation to Predict and Extend Long-term Kidney Transplant Function. Transplantation 2016; 99:2038-48. [PMID: 26262502 DOI: 10.1097/tp.0000000000000836] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Renal transplantation has transformed the life of patients with end-stage renal disease and other chronic kidney disorders by returning endogenous kidney function and enabling patients to cease dialysis. Several clinical indicators of graft outcome and long-term function have been established. Although rising creatinine levels and graft biopsy can be used to determine graft loss, identifying early predictors of graft function will not only improve our ability to predict long-term graft outcome but importantly provide a window of opportunity to therapeutically intervene to preserve graft function before graft failure has occurred. Since understanding the importance of matching genetic variation at the HLA region between donors and recipients and translating this into clinical practise to improve transplant outcome, much focus has been placed on trying to identify additional genetic predictors of transplant outcome/function. This review will focus on how candidate gene studies have identified variants within immunosuppression, immune response, fibrotic pathways, and specific ethnic groups, which correlate with graft outcome. We will also discuss the challenges faced by candidate gene studies, such as differences in donor and recipient selection criteria and use of small data sets, which have led to many genes failing to be consistently associated with transplant outcome. This review will also look at how recent advances in our understanding of and ability to screen the genome are starting to provide new insights into the mechanisms behind long-term graft loss and with it the opportunity to target these pathways therapeutically to ultimately increase graft lifespan and the associated benefits to patients.
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Affiliation(s)
- Matthew J Simmonds
- 1 Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), University of Oxford, Churchill Hospital, Headington, Oxford, United Kingdom
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28
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Kidneys from Older Living Donors Provide Excellent Short and Intermediate Outcomes--A Single China Center's Experience. Transplantation 2015; 99:e81-8. [PMID: 26308304 DOI: 10.1097/tp.0000000000000580] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Transplantation with kidneys from older living donors is on the rise, yet controversy still exists over whether the outcomes are as satisfactory as with kidneys from younger donors. METHODS We retrospectively analyzed 1009 living donor kidney transplants performed at our center between 2006 and 2013. Graft and patient outcomes were compared between transplants with kidneys from old living donors (OLD, 55-65 years) (n = 264) and from young living donors (YLD, <55 years) (n = 745). RESULTS The age was 32.80 ± 9.71 years and 33.91 ± 5.98 years for recipient in YLD and OLD group, respectively. Death-censored graft survival at 1, 3, and 5 years was 98.8%, 97.1%, and 95.8% in patients receiving YLD kidneys, similar to the corresponding values of 97.6%, 95.5% and 95.5% in patients receiving OLD kidneys (P = 0.356). Patient survival at 1, 3, and 5 years after transplantation was also similar for patients receiving YLD kidneys (98.5%, 97.1%, and 96.7%) and for patients receiving OLD kidneys (99.6%, 99.6%, and 96.8%; P = 0.110). The OLD kidneys were not associated with increased risk of death-censored graft failure (hazard ratio, 2.5; 95% confidence interval, 0.57 to 11.11) and patient death (hazard ratio, 1.67; 95% confidence interval, 0.75 to 3.73). In addition, there is no increased graft loss or patient death for each 10-year increase in donor age. Transplantation with OLD kidneys was not associated with reduced patient or graft outcomes in the short term (≤ 12 months) or medium term (>1 year). CONCLUSIONS Graft and patient outcomes after living-donor kidney transplantation are similar in the short-term and medium-term for donors aged 55 to 65 years and for younger donors. Therefore, the use of OLD kidneys should be encouraged in China.
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. EXP CLIN TRANSPLANT 2015; 13. [DOI: 10.6002/ect.2015.0056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Pianta TJ, Peake PW, Pickering JW, Kelleher M, Buckley NA, Endre ZH. Evaluation of biomarkers of cell cycle arrest and inflammation in prediction of dialysis or recovery after kidney transplantation. Transpl Int 2015; 28:1392-404. [DOI: 10.1111/tri.12636] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/30/2014] [Accepted: 07/07/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Timothy J. Pianta
- Prince of Wales Clinical School; University of New South Wales; Sydney NSW Australia
- Northern Clinical School; Melbourne Medical School; University of Melbourne; Epping Vic Australia
| | - Philip W. Peake
- Prince of Wales Clinical School; University of New South Wales; Sydney NSW Australia
| | - John W. Pickering
- Department of Medicine; University of Otago; Christchurch New Zealand
| | - Michaela Kelleher
- Department of Nephrology; Prince of Wales Hospital; Sydney NSW Australia
| | | | - Zoltan H. Endre
- Prince of Wales Clinical School; University of New South Wales; Sydney NSW Australia
- Department of Medicine; University of Otago; Christchurch New Zealand
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Qiu J, Wang C, Liang X, Chen G, Huang G, Fu Q, Chen L. Effect of donor age and parent-to-child transplant on living-related donor kidney transplantation: a single center's experience of 236 cases. Ren Fail 2015; 37:1007-12. [PMID: 26042341 DOI: 10.3109/0886022x.2015.1052948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To study the impact of parent-to-child transplant and older donor age on recipients' post-transplant creatinine levels, a total of 236 patients who received living donor kidney transplantation were evaluated for kidney viability based on creatinine (Cr) level. Of the 236 pairings, 113 (48%) were parent-to-child followed by sibling transplants (66, 30%). Recipient Cr levels were significantly higher at 6 months and 3 years post-transplant in the parent-to-child transplants compared to other donor-recipient relationships. In addition, donor age (average age: 44.1 ± 11.5; range: 19-66) contributed to higher recipient post-transplant Cr levels (p < 0.01). Pre-transplant donor and recipient Cr levels tended to result in higher post-transplant Cr levels in recipients (p < 0.05). Multivariate logistic regression analysis revealed that the presence of both parent-to-child transplant and older donor significantly increased the risk of elevated post-transplant Cr levels in recipients with an estimated odds ratios ranging from 3.46 (95% CI: 1.71-6.98) at 6 months to 8.04 (3.14-20.56) at 3 years post-transplant. Donor age significantly affected transplant survival as measured by higher recipient post-transplant Cr levels. In addition, parent-to-child transplant pairings, along with older donor age, significantly increased the risk of elevated post-transplant Cr levels in recipients.
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Affiliation(s)
- Jiang Qiu
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
| | - Changxi Wang
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
| | - Xianwei Liang
- b Department of Clinical Medicine , Sun Yet-sen Medical Academy of Sun Yat-sen University , Guangzhou , China
| | - Guodong Chen
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
| | - Gang Huang
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
| | - Qian Fu
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
| | - Lizhong Chen
- a Organ Transplant Department , The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China and
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Clusterin in kidney transplantation: novel biomarkers versus serum creatinine for early prediction of delayed graft function. Transplantation 2015; 99:171-9. [PMID: 25083615 DOI: 10.1097/tp.0000000000000256] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Current methods for rapid detection of delayed graft function (DGF) after kidney transplantation are unreliable. Urinary clusterin is a biomarker of kidney injury but its utility for prediction of graft dysfunction is unknown. METHODS In a single-center, prospective cohort study of renal transplant recipients (N=81), urinary clusterin was measured serially between 4 hr and 7 days after transplantation. The utility of clusterin for prediction of DGF (hemodialysis within 7 days of transplantation) was compared with urinary interleukin (IL)-18, neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1, serum creatinine, and clinical variables. RESULTS At 4 hr after reperfusion, anuria was highly specific, but of low sensitivity for detection of DGF. At 4 hr, receiver operating characteristic analysis suggested that urinary clusterin, IL-18, kidney injury molecule-1, and NGAL concentration were predictive of DGF. After adjusting for preoperative clinical variables and anuria, clusterin and IL-18 independently enhanced the clinical model for prediction of DGF. Kidney injury molecule-1 only modestly improved the prediction of DGF, whereas NGAL, serum creatinine, and the creatinine reduction ratio did not improve on the clinical model. At 12 hr, the creatinine reduction ratio independently predicted DGF. CONCLUSION Both urinary clusterin and IL-18 are useful biomarkers and may allow triaging of patients with DGF within 4 hr of transplantation. Relative performance of biomarkers for prediction of graft function is time-dependant. Early and frequent measurements of serum creatinine and calculation of the creatinine reduction ratio also predict DGF within 12 hr of reperfusion.
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Bauer A, Limperger V, Nowak-Göttl U. End-stage renal disease and thrombophilia. Hamostaseologie 2015; 36:103-7. [PMID: 25639843 DOI: 10.5482/hamo-14-11-0063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/23/2015] [Indexed: 11/05/2022] Open
Abstract
Chronic kidney disease is an established risk factor for arterial and venous thromboembolism (TE). Whereas the overall risk of TE in moderately decreased kidney function is approximately 2.5-fold higher compared to patients with normal renal function, the risk increase is 5.5-fold in patients with severe renal dysfunction. In patients with renal dysfunction and arterial thrombosis (OR: 4.9), malignancy (OR: 5.8) surgery (OR: 14.0) or thrombophilia (OR: 4.3) the risk to suffer from venous TE is higher compared to the risk associated to the baseline renal dysfunction alone. The treatment options for end-stage renal diseases include hemodialysis, peritoneal dialysis and kidney transplantation. During all treatment modalities thrombotic complications have been described, namely catheter malfunction and shunt thrombosis in patients undergoing hemodialysis in up to 25% of patients, and TE, pulmonary embolism or graft vessel thrombosis in approximately 8% of patients. The reported incidence of reno-vascular thrombosis following renal transplantation leading to hemorrhagic infarction with organ rejection or organ loss varied between 2-12%. Keeping in mind the multifactorial etiology of TE in patients with kidney dysfunction a general screening for thrombophilia in this patient group is not indicated. Selected screening on an individual patient basis should be discussed if the family history for TE is positive or the patient itself had suffered one thrombosis before the onset of the renal disease or multiple TEs during hemodialysis or post kidney transplantation in patients waiting for living donor kidney transplantation.
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Affiliation(s)
| | | | - Ulrike Nowak-Göttl
- Prof. Dr. Ulrike Nowak-Göttl, Institute of Clinical Chemistry, Thrombosis & Hemostasis Treatment Center, Univ. Hospital Schleswig Holstein, Campus Kiel & Lübeck, Arnold-Heller-Str. 5, 24105 Kiel, E-mail:
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34
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Tanrısev M, Hoşcoşkun C, Aşçı G, Sözbilen M, Fırat Ö, Ertilav M, Özkahya M, Töz H. Long-term outcome of kidney transplantation from elderly living and expanded criteria deceased donors. Ren Fail 2014; 37:249-53. [DOI: 10.3109/0886022x.2014.982488] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Patel HV, Kute VB, Shah PR, Vanikar AV, Shrimali JD, Gumber MR, Engineer DP, Trivedi HL. Outcome of renal transplantation from older living donors compared to younger living donor in developing country. Ren Fail 2014; 36:1516-1519. [PMID: 25222108 DOI: 10.3109/0886022x.2014.958954] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To evaluate whether the outcomes of renal grafts from living related donors older than 60 years are acceptable, in terms of renal function and patient/graft survival. MATERIAL AND METHODS One hundred and forty-seven patients who received kidneys from donor age ≥60 years constituted the study group (group 1). The control group (group 2) consisted of 1310 patients who received renal transplants from donor age <60 years. Outcome measures included graft, patient survival, acute rejection rate and serum creatinine (SCr) in patients/donors. Graft and patient survivals were compared using the Kaplan-Meier method. RESULTS The mean age of donors was 62.7 ± 3.39 years in group 1 and 43.45 ± 9.65 years in group 2. Patient survival at 1, 3 and 5 years was 95.7%, 89.4% and 82.6% in group 1 and 93.8%, 89.1% and 83.1% in group 2 (p = 0.785), respectively. Death-censored graft survival at 1, 3 and 5 years was 98.5%, 94.8% and 94.8% in group 1 and 96.1%, 92.9% and 89% in group 2 (p = 0.166), respectively. Biopsy-proven acute rejections were 21% and 16.8% (p = 0.206) and chronic rejections 5% and 3.4% in group 1 and 2, respectively (p = 0.542). Recipient SCr (mg/dL) was 1.8 ± 0.31 in group 1 and 1.58 ± 0.37 in group 2. The donor SCr levels at the last follow-up were 1 mg/dL and 0.9 mg/dL in group 1 and 2, respectively. CONCLUSIONS Donor age did not affect patient and graft survival in the 5-year follow-up in our study. Age alone seems not to be an exclusion criterion to living kidney donation.
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Affiliation(s)
- Himanshu V Patel
- Department of Nephrology and Clinical Transplantation, Institute of Kidney Diseases and Research Center, Dr. HL Trivedi Institute of Transplantation Sciences (IKDRC-ITS) , Ahmedabad , India and
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Stegall MD, Gaston RS, Cosio FG, Matas A. Through a glass darkly: seeking clarity in preventing late kidney transplant failure. J Am Soc Nephrol 2014; 26:20-9. [PMID: 25097209 DOI: 10.1681/asn.2014040378] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A common lament is that long-term kidney transplant outcomes remain the same despite improvements in early graft survival. To be fair, progress has been made-in both our understanding of chronic injury and modestly, graft survival. However, we are still a long way from actually solving this important and difficult problem. In this review, we outline recent data supporting the existence of several causes of renal allograft loss, the incidences of which peak at different time points after transplantation. On the basis of this broadened concept of chronic renal allograft injury, we examine the challenges of clinical trial design in long-term studies, including the use of surrogate end points and biomarkers. Finally, we suggest a path forward that, ultimately, may improve long-term renal allograft survival.
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Affiliation(s)
- Mark D Stegall
- Division of Transplant Surgery, Departments of Surgery and Immunology, von Liebig Transplant Center, Mayo Clinic, Rochester, Minnesota;
| | - Robert S Gaston
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Fernando G Cosio
- Division of Nephrology and Hypertension, Department of Medicine, von Liebig Transplant Center, Mayo Clinic, Rochester, Minnesota; and
| | - Arthur Matas
- Department of Surgery, University of Minnesota, Minneapolis, Minnesota
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37
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Jongbloed F, de Bruin RWF, Pennings JLA, Payán-Gómez C, van den Engel S, van Oostrom CT, de Bruin A, Hoeijmakers JHJ, van Steeg H, IJzermans JNM, Dollé MET. Preoperative fasting protects against renal ischemia-reperfusion injury in aged and overweight mice. PLoS One 2014; 9:e100853. [PMID: 24959849 PMCID: PMC4069161 DOI: 10.1371/journal.pone.0100853] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/29/2014] [Indexed: 11/18/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) is inevitable during kidney transplantation leading to oxidative stress and inflammation. We previously reported that preoperative fasting in young-lean male mice protects against IRI. Since patients are generally of older age with morbidities possibly leading to a different response to fasting, we investigated the effects of preoperative fasting on renal IRI in aged-overweight male and female mice. Male and female F1-FVB/C57BL6-hybrid mice, average age 73 weeks weighing 47.2 grams, were randomized to preoperative ad libitum feeding or 3 days fasting, followed by renal IRI. Body weight, kidney function and survival of the animals were monitored until day 28 postoperatively. Kidney histopathology was scored for all animals and gene expression profiles after fasting were analyzed in kidneys of young and aged male mice. Preoperative fasting significantly improved survival after renal IRI in both sexes compared with normal fed mice. Fasted groups had a better kidney function shown by lower serum urea levels after renal IRI. Histopathology showed less acute tubular necrosis and more regeneration in kidneys from fasted mice. A mRNA analysis indicated the involvement of metabolic processes including fatty acid oxidation and retinol metabolism, and the NRF2-mediated stress response. Similar to young-lean, healthy male mice, preoperative fasting protects against renal IRI in aged-overweight mice of both genders. These findings suggest a general protective response of fasting against renal IRI regardless of age, gender, body weight and genetic background. Therefore, fasting could be a non-invasive intervention inducing increased oxidative stress resistance in older and overweight patients as well.
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Affiliation(s)
- Franny Jongbloed
- Department of Surgery, Laboratory for Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus University Medical Center, Rotterdam, The Netherlands
- Laboratory of Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Ron W. F. de Bruin
- Department of Surgery, Laboratory for Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jeroen L. A. Pennings
- Laboratory of Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - César Payán-Gómez
- Department of Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
- Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia
| | - Sandra van den Engel
- Department of Surgery, Laboratory for Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Conny T. van Oostrom
- Laboratory of Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Alain de Bruin
- Dutch Molecular Pathology Center, Department of Pathobiology Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Jan H. J. Hoeijmakers
- Department of Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Harry van Steeg
- Laboratory of Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
- Department of Toxicogenetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Jan N. M. IJzermans
- Department of Surgery, Laboratory for Experimental Transplantation and Intestinal Surgery (LETIS), Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Martijn E. T. Dollé
- Laboratory of Health Protection Research, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
- * E-mail:
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Ahmadi AR, Lafranca JA, Claessens LA, Imamdi RMS, IJzermans JNM, Betjes MGH, Dor FJMF. Shifting paradigms in eligibility criteria for live kidney donation: a systematic review. Kidney Int 2014; 87:31-45. [PMID: 24786706 DOI: 10.1038/ki.2014.118] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/06/2014] [Accepted: 02/20/2014] [Indexed: 12/11/2022]
Abstract
As the organ shortage increases, inherently the demand for donor kidneys continues to rise. Thus, live kidney donation is essential for increasing the donor pool. In order to create successful expansion, extended criteria live kidney donors should be considered. This review combines current guidelines with all available literature in this field, trying to seek and establish the optimal extended criteria. Comprehensive searches were carried out in major databases until November 2013 to search for articles regarding older age, overweight and obesity, hypertension, vascular anomalies/multiplicity, nulliparous women, and minors as donors. Of the 2079 articles found, 152 fell within the scope of the review. Five major guidelines were included and reviewed. Based on the literature search, live kidney donation in older donors (up to 70 years of age) seems to be safe as outcome is comparable to younger donors. Obese donors have comparable outcome to lean donors, in short- and mid-term follow-up. Since little literature is available proving the safety of donation of hypertensive donors, caution is advised. Vascular multiplicity poses no direct danger to the donor and women of childbearing age can be safely included as donors. Although outcome after donation in minors is shown to be comparable to adult donors, they should only be considered if no other options exist. We conclude that the analyzed factors above should not be considered as absolute contraindications for donation.
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Affiliation(s)
- Ali R Ahmadi
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jeffrey A Lafranca
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Laura A Claessens
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Raoul M S Imamdi
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jan N M IJzermans
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Michiel G H Betjes
- Division of Nephrology, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Frank J M F Dor
- Division of Transplant Surgery, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Telomere length of recipients and living kidney donors and chronic graft dysfunction in kidney transplants. Transplantation 2014; 97:325-9. [PMID: 24492422 DOI: 10.1097/01.tp.0000436705.87898.88] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND A biological marker that would allow clinicians to determine the length of time an allograft will remain functional after transplantation would greatly aid the ability to stratify donors by risk and to use biologically "young" allografts in young recipients, maximizing the use of this rare resource. Telomere length (TL) has been proposed to be such a marker to determine the biological age of a tissue. METHODS We genotyped DNA from 1805 recipients and 1038 living kidney donors for TL to determine the association of TL with acute rejection (AR), chronic graft dysfunction (CGD), and graft failure of kidney allografts. DNA was isolated from peripheral blood white blood cells and TL was measured in DNA using the multiplexed monochrome quantitative polymerase chain reaction assay. RESULTS As has been previously shown, we found a significant association between log-transformed TL and donor age (P=3.8×10) and recipient age (P=5.6×10). Univariate and multivariate analysis did not show any significant associations between log-transformed TL in donor or recipient DNA with AR, CGD, or graft failure, although we did observe an association between donor chronological age and CGD (P=0.018). CONCLUSION Although older allografts have been shown to be at greater risk for AR and CGD, this does not appear to be associated with shorter TL. Different markers will need to be identified to determine how biological age impacts transplant outcome, such as age-related fibrosis or tubular atrophy and tubular loss.
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Underwood PW, Sheetz KH, Cron DC, Terjimanian MN, Englesbe MJ, Waits SA. Cigarette smoking in living kidney donors: donor and recipient outcomes. Clin Transplant 2014; 28:419-22. [PMID: 24617506 DOI: 10.1111/ctr.12330] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND Living kidney donor pools are expanding with the use of "medically complex" donors. Whether or not to include cigarette smokers as living kidney donors remains unclear. The aim of this study was to determine the relationship between donor smoking and recipient outcomes. We hypothesized that donor smoking would increase donor complications and decrease allograft and recipient survival over time. METHODS The charts of 602 living kidney donors and their recipients were retrospectively reviewed. Kaplan-Meier survival analysis and Cox modeling were used to assess the relationships between smoking and recipient and allograft survival. RESULTS No difference in postoperative complications was seen in smoking versus non-smoking donors. Donor smoking at time of evaluation did not significantly decrease allograft survival (HR = 1.19, p = 0.52), but recipient smoking at evaluation did reduce allograft survival (HR = 1.74, p = 0.05). Both donor and recipient smoking decreased recipient survival (HR = 1.93, p < 0.01 vs HR = 1.74, p = 0.048). DISCUSSION When controlled for donor and recipient factors, cigarette smoking by living kidney donors significantly reduced recipient survival. This datum suggests that careful attention to smoking history is an important clinical measure in which to counsel potential donors and recipients. Policy efforts to limit donors with a recent smoking history should be balanced with the overall shortage of appropriate kidney donors.
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20-Year Analysis of Kidney Transplantation: A Single Center in Japan. Transplant Proc 2014; 46:437-41. [DOI: 10.1016/j.transproceed.2013.10.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 10/02/2013] [Indexed: 11/18/2022]
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Tanriover B, Mohan S, Cohen DJ, Radhakrishnan J, Nickolas TL, Stone PW, Tsapepas DS, Crew RJ, Dube GK, Sandoval PR, Samstein B, Dogan E, Gaston RS, Tanriover JN, Ratner LE, Hardy MA, Chvojka J, da Motta H, Devan J, Dytman SA, Díaz GA, Eberly B, Felix J, Fields L, Fiorentini GA, Gago AM, Gallagher H, Gran R, Harris DA, Higuera A, Hurtado K, Jerkins M, Kafka T, Kordosky M, Kulagin SA, Le T, Maggi G, Maher E, Manly S, Mann WA, Marshall CM, Martin Mari C, McFarland KS, McGivern CL, McGowan AM, Miller J, Mislivec A, Morfín JG, Muhlbeier T, Naples D, Nelson JK, Norrick A, Osta J, Palomino JL, Paolone V, Park J, Patrick CE, Perdue GN, Rakotondravohitra L, Ransome RD, Ray H, Ren L, Rodrigues PA, Savage DG, Schellman H, Schmitz DW, Simon C, Snider FD, Solano Salinas CJ, Tagg N, Valencia E, Velásquez JP, Walton T, Wolcott J, Zavala G, Zhang D, Ziemer BP. Kidneys at higher risk of discard: expanding the role of dual kidney transplantation. Am J Transplant 2014; 14:404-15. [PMID: 24472195 PMCID: PMC4058786 DOI: 10.1111/ajt.12553] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 10/15/2013] [Accepted: 10/15/2013] [Indexed: 01/25/2023]
Abstract
Half of the recovered expanded criteria donor (ECD) kidneys are discarded in the United States. A new kidney allocation system offers kidneys at higher risk of discard, Kidney Donor Profile Index (KDPI)>85%, to a wider geographic area to promote broader sharing and expedite utilization. Dual kidney transplantation (DKT) based on the KDPI is a potential option to streamline allocation of kidneys which otherwise would have been discarded. To assess the clinical utility of the KDPI in kidneys at higher risk of discard, we analyzed the OPTN/UNOS Registry that included the deceased donor kidneys recovered between 2002 and 2012. The primary outcomes were allograft survival, patient survival and discard rate based on different KDPI categories (<80%, 80-90% and >90%). Kidneys with KDPI>90% were associated with increased odds of discard (OR=1.99, 95% CI 1.74-2.29) compared to ones with KDPI<80%. DKTs of KDPI>90% were associated with lower overall allograft failure (HR=0.74, 95% CI 0.62-0.89) and better patient survival (HR=0.79, 95% CI 0.64-0.98) compared to single ECD kidneys with KDPI>90%. Kidneys at higher risk of discard may be offered in the up-front allocation system as a DKT. Further modeling and simulation studies are required to determine a reasonable KDPI cutoff percentile.
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Affiliation(s)
- B. Tanriover
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY,The Columbia University Renal Epidemiology (CURE) Group, Department of Medicine, Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY,Corresponding author: Bekir Tanriover,
| | - S. Mohan
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY,The Columbia University Renal Epidemiology (CURE) Group, Department of Medicine, Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - D. J. Cohen
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - J. Radhakrishnan
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - T. L. Nickolas
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY,The Columbia University Renal Epidemiology (CURE) Group, Department of Medicine, Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - P. W. Stone
- Center for Health Policy, Columbia University School of Nursing, New York, NY
| | - D. S. Tsapepas
- Department of Pharmacy, New York Presbyterian Hospital, New York, NY
| | - R. J. Crew
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - G. K. Dube
- Division of Nephrology, Columbia University College of Physicians and Surgeons, New York, NY
| | - P. R. Sandoval
- Renal and Pancreatic Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - B. Samstein
- Renal and Pancreatic Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - E. Dogan
- Division of Nephrology, Sutcu Imam University, Kahramanmaras, Turkey
| | - R. S. Gaston
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, AL
| | | | - L. E. Ratner
- Renal and Pancreatic Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - M. A. Hardy
- Renal and Pancreatic Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, NY
| | - J Chvojka
- University of Rochester, Rochester, New York 14610, USA
| | - H da Motta
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - J Devan
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - S A Dytman
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - G A Díaz
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - B Eberly
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Felix
- Northwestern University, Evanston, Illinois 60208, USA
| | - L Fields
- Northwestern University, Evanston, Illinois 60208, USA
| | - G A Fiorentini
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - A M Gago
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - H Gallagher
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - R Gran
- Department of Physics, University of Minnesota-Duluth, Duluth, Minnesota 55812, USA
| | - D A Harris
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Higuera
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Col. Centro. Guanajuato 36000, Guanajuato, Mexico
| | - K Hurtado
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil and Universidad Nacional de Ingeniería, Apartado 31139 Lima, Peru
| | - M Jerkins
- Department of Physics, University of Texas, 1 University Station, Austin, Texas 78712, USA
| | - T Kafka
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - M Kordosky
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - S A Kulagin
- Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia
| | - T Le
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - G Maggi
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680 Casilla 110-V, Valparaíso, Chile
| | - E Maher
- Massachusetts College of Liberal Arts, 375 Church Street, North Adams, Massachusetts 01247, USA
| | - S Manly
- University of Rochester, Rochester, New York 14610, USA
| | - W A Mann
- Physics Department, Tufts University, Medford, Massachusetts 02155, USA
| | - C M Marshall
- University of Rochester, Rochester, New York 14610, USA
| | | | - K S McFarland
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and University of Rochester, Rochester, New York 14610, USA
| | - C L McGivern
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - A M McGowan
- University of Rochester, Rochester, New York 14610, USA
| | - J Miller
- Departamento de Física, Universidad Técnica Federico Santa María, Avenida España 1680 Casilla 110-V, Valparaíso, Chile
| | - A Mislivec
- University of Rochester, Rochester, New York 14610, USA
| | - J G Morfín
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - T Muhlbeier
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - D Naples
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J K Nelson
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - A Norrick
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - J Osta
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J L Palomino
- Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Rio de Janeiro 22290-180, Brazil
| | - V Paolone
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - J Park
- University of Rochester, Rochester, New York 14610, USA
| | - C E Patrick
- Northwestern University, Evanston, Illinois 60208, USA
| | - G N Perdue
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA and University of Rochester, Rochester, New York 14610, USA
| | | | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - H Ray
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - L Ren
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - P A Rodrigues
- University of Rochester, Rochester, New York 14610, USA
| | - D G Savage
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Schellman
- Northwestern University, Evanston, Illinois 60208, USA
| | - D W Schmitz
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - C Simon
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
| | - F D Snider
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - N Tagg
- Department of Physics, Otterbein University, 1 South Grove Street, Westerville, Ohio 43081, USA
| | - E Valencia
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Col. Centro. Guanajuato 36000, Guanajuato, Mexico
| | - J P Velásquez
- Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
| | - T Walton
- Department of Physics, Hampton University, Hampton, Virginia 23668, USA
| | - J Wolcott
- University of Rochester, Rochester, New York 14610, USA
| | - G Zavala
- Campus León y Campus Guanajuato, Universidad de Guanajuato, Lascurain de Retana No. 5, Col. Centro. Guanajuato 36000, Guanajuato, Mexico
| | - D Zhang
- Department of Physics, College of William & Mary, Williamsburg, Virginia 23187, USA
| | - B P Ziemer
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697-4575, USA
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Lionaki S, Kapsia H, Makropoulos I, Metsini A, Skalioti C, Gakiopoulou H, Zavos G, Boletis JN. Kidney transplantation outcomes from expanded criteria donors, standard criteria donors or living donors older than 60 years. Ren Fail 2014; 36:526-33. [PMID: 24456131 DOI: 10.3109/0886022x.2013.876348] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES To evaluate outcomes in kidney allograft recipients from donors with expanded criteria (ECD) versus standard criteria (SCD) or living donors (LD) >60 years. METHODS We studied all patients who received a kidney between 2005 and 2011, focusing in recipients of kidneys from deceased ECD, SCD and LD >60 years. ECD was any deceased donor >60 years or >50 years with two of the following: hypertension (HTN), stroke as the cause of death, or serum creatinine >1.5 mg/dL. We recorded characteristics of the transplant procedure, patient, graft survival and renal function 1 year after transplantation and at the end of follow-up. RESULTS Six-hundred and five patients were transplanted between 2005 and 2011 in our department. There were 142 (25.1%) transplantations from ECD, 192 (33.98%) from SCD and 96 (16.99%) from LDs older than 60 years. In a mean follow-up time of 36.4 months, graft survival rates were similar for all groups. Calculated GFR was found statistically different between the ECD and SCD groups, but still satisfactory at first year, and at end of follow-up time. Comparison of the patients, who received transplants from ECD, even older than 70 years, and those from LD >60 years revealed equivalent renal function in short and long term. CONCLUSIONS Utilization of marginal kidneys effectively doubled our deceased transplant volume in the period 2005-2011. Patients' and graft survival were shown similar at the end of follow-up for all groups. Renal outcomes were shown equivalent between the ECD and LD >60 years groups, and although significantly lower between the ECD and the SCD group, were still very satisfactory.
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Affiliation(s)
- Sophia Lionaki
- Nephrology and Transplantation Department, Laiko Hospital , Athens , Greece and
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Wang CJ, Wetmore JB, Kasiske BL. Implications of predonation GFR to recipient and donor outcomes. Nephrol Dial Transplant 2013; 29:5-9. [PMID: 24163270 DOI: 10.1093/ndt/gft322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Connie J Wang
- Division of Nephrology and Hypertension, University of Kansas Medical Center, Kansas City, KS, USA
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Li Y, Li J, Fu Q, Chen L, Fei J, Deng S, Qiu J, Chen G, Huang G, Wang C. Kidney transplantation from living related donors aged more than 60 years: a single center experience. Ren Fail 2013; 35:1251-4. [DOI: 10.3109/0886022x.2013.823873] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ding R, Chen X, Wu D, Wei R, Hong Q, Shi S, Yin Z, Ma L, Xie Y. Effects of Aging on Kidney Graft Function, Oxidative Stress and Gene Expression after Kidney Transplantation. PLoS One 2013; 8:e65613. [PMID: 23824036 PMCID: PMC3688821 DOI: 10.1371/journal.pone.0065613] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 04/25/2013] [Indexed: 11/30/2022] Open
Abstract
Conflicting results have been reported regarding the effects of donor age, recipient age and donor-recipient age difference on short- and long-term outcomes after kidney transplantation. The aim of this study was to evaluate the effects of recipient age on graft function, oxidative stress, and gene expression after renal transplantation. Fifty male Fischer 344 rats [25 young (Y, 4 months), 25 senior (S, 16 months)] were randomized to 6 groups: 2 sham groups (Y and S, n = 5 in each group) and 4 renal transplant groups[young-to-young (Y-Y), young-to-senior (Y-S), senior-to-young (S-Y), senior-to-senior (S-S), (n = 10 in each group)]. The left kidneys were transplanted from donor to recipient. After 12 weeks, systematic blood pressure, graft weight, graft function, histology and oxidative stress were measured. Microarray analysis and quantitative real-time PCR confirmation were performed to study gene expression in the grafts. There were no differences in renal graft function between young and senior kidney cross-transplantation. Transplanted kidneys showed no significant differences in glomerulosclerosis index compared to non-transplanted kidneys but had significantly different tubulointerstitium scores compared to age-matched controls. Senior rats had lower SOD activity and higher MDA content than young rats. SOD activity was significantly lower and MDA content significantly higher in the Y-S group than in the Y-Y group. There were 548 transcript differences between senior and young kidneys with 36 upregulated and 512 downregulated transcripts. There were 492 transcript differences between Y-S and Y-Y groups with 127 upregulated and 365 downregulated transcripts. There were 1244 transcript differences between the S-Y and S-S groups with 680 upregulated and 574 downregulated transcripts. Oxidative stress and gene expression profile was significantly different in the Y-S compared to the S-Y group. The identified differences were mainly in the MAPK and insulin signal pathways, making these potential targets for therapeutic intervention.
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Affiliation(s)
- Rui Ding
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Xiangmei Chen
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
- * E-mail:
| | - Di Wu
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Ribao Wei
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Quan Hong
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Suozhu Shi
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Zhong Yin
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Linlin Ma
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
| | - Yuansheng Xie
- State Key Laboratory of Kidney Disease, Department of Nephrology, Chinese PLA General Hospital, Beijing, P. R. China
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