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Acute kidney rejection

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https://www.readbyqxmd.com/read/27891189/variations-in-dna-methylation-of-interferon-gamma-and-programmed-death-1-in-allograft-rejection-after-kidney-transplantation
#1
Karin Boer, L Elly A de Wit, Fleur S Peters, Dennis A Hesselink, Leo J Hofland, Michiel G H Betjes, Caspar W N Looman, Carla C Baan
BACKGROUND: The role of DNA methylation in the regulation of the anti-donor-directed immune response after organ transplantation is unknown. Here, we studied the methylation of two mediators of the immune response: the pro-inflammatory cytokine interferon γ (IFNγ) and the inhibitory receptor programmed death 1 (PD1) in naïve and memory CD8+ T cell subsets in kidney transplant recipients receiving immunosuppressive medication. Both recipients experiencing an episode of acute allograft rejection (rejectors) as well as recipients without rejection (non-rejectors) were included...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27889299/safety-and-efficacy-outcomes-3-years-after-switching-to-belatacept-from-a-calcineurin-inhibitor-in-kidney-transplant-recipients-results-from-a-phase-2-randomized-trial
#2
Josep M Grinyó, Maria Del Carmen Rial, Josefina Alberu, Steven M Steinberg, Roberto C Manfro, Georgy Nainan, Flavio Vincenti, Charlotte Jones-Burton, Nassim Kamar
BACKGROUND: In a phase 2 study, kidney transplant recipients of low immunologic risk who switched from a calcineurin inhibitor (CNI) to belatacept had improved kidney function at 12 months postconversion versus those continuing CNI therapy, with a low rate of acute rejection and no transplant loss. STUDY DESIGN: 36-month follow-up of the intention-to-treat population. SETTING & PARTICIPANTS: CNI-treated adult kidney transplant recipients with stable transplant function (estimated glomerular filtration rate [eGFR], 35-75mL/min/1...
November 23, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27888556/evaluate-quality-of-kidneys-from-dcd-ecd-donors-by-parameters-of-machine-perfusion
#3
Guodong Chen, Chang Wang, Yi Zhao, Longhui Qiu, Xiaopeng Yuan, Jiang Qiu, Changxi Wang, Xiaoshun He, Lizhong Chen
AIM: To investigate whether the parameters of machine perfusion could predict the quality of kidneys from donation after circulatory death(DCD) donors and expanded criteria donors (ECD) . METHODS: 58 kidneys from DCD/ECD donors were harvested in our hospital from July 2011 to August 2014. All kidneys were preserved with machine perfusion(Life Port), and parameters of machine perfusion were collected. All kidneys were biopsied before transplantation. The primary endpoints were delayed graft function(DGF), graft loss and patient death...
November 26, 2016: Nephrology
https://www.readbyqxmd.com/read/27888534/early-steroid-withdrawal-results-in-improved-patient-and-graft-survival-and-lower-risk-of-post-transplant-cardiovascular-risk-profiles-a-single-center-10-year-experience
#4
Reynold Lopez-Soler, Ryan Chan, Jessica Martinolich, Lisa Park, Ashar Ata, Nikolaos Chandolias, David Conti
Long term use of steroids results in predictable secondary effects that can lead to increased morbidity and mortality. In this study, we present 10 years' worth of data of early steroid withdrawal (ESW) immunosuppression consisting of Mycophenolate, Sirolimus, and Tacrolimus. From 2003 to 2013, 563 kidney transplant recipients were weaned off steroids prior to discharge. We compared outcomes with that of our 65 historical controls maintained on steroids. We analyzed graft and patient survival and determined the incidence of steroid-related comorbidities such as hypertension, hypercholesterolemia, diabetes, coronary artery disease, and weight gain...
November 26, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27887677/outcome-disparities-between-african-americans-and-caucasians-in-contemporary-kidney-transplant-recipients
#5
David J Taber, Leonard E Egede, Prabhakar K Baliga
BACKGROUND: Racial disparities in African-American (AA) kidney transplant have persisted for nearly 40 years, with limited data available on the scope of this issue in the contemporary era of transplantation. METHODS: Descriptive retrospective cohort study of US registry data including adult solitary kidney transplants between Jan 1, 2005 to Dec 31, 2009. RESULTS: 60,695 recipients were included; 41,426 Caucasians (68%) and 19,269 AAs (32%)...
November 18, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27873516/cyclosporine-sparing-effect-of-enteric-coated-mycophenolate-sodium-in-de-novo-kidney-transplantation
#6
Su Hyung Lee, Jae Berm Park, Chang Kwon Oh, Myoung Soo Kim, Sung Joo Kim, Jongwon Ha
PURPOSE: The increased tolerability of enteric-coated mycophenolate sodium (EC-MPS), compared to mycophenolate mofetil, among kidney transplant recipients has the potential to facilitate cyclosporine (CsA) minimization. Therefore, a prospective trial to determine the optimum EC-MPS dose in CsA-based immunosuppression regimens is necessary. MATERIALS AND METHODS: A comparative, parallel, randomized, open-label study was performed for 140 patients from four centers to compare the efficacy and tolerability of low dose CsA with standard dose EC-MPS (the investigational group) versus standard dose CsA with low dose EC-MPS (the control group) for six months in de novo kidney transplant recipients...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27872835/six-end-stage-renal-disease-patients-benefited-from-first-non-simultaneous-single-center-6-way-kidney-exchange-transplantation-in-india
#7
Vivek B Kute, Himanshu V Patel, Umesh T Varyani, Pankaj R Shah, Pranjal R Modi, Veena R Shah, Sayyed J Rizvi, Bipin C Pal, Priya S Shah, Pavan S Wakhare, Vijay A Ghodela, Saiprasad G Shinde, Varsha B Trivedi, Minaxi H Patel, Hargovind L Trivedi
AIM: To avoid desensitization protocols and ABO incompatible kidney transplantation (KT) due to high costs and increased risk of infections from intense immunosuppression. METHODS: We present institutional ethical review board - approved study of single center 6-way kidney exchange transplantation. The participants comprised ABO incompatibility (n = 1); positive cross-match and/or presence of donor specific antibody (n = 5). The average time required from registration in kidney paired donation (KPD) registry to find suitable donors was 45 d and time required to perform transplants after legal permission was 2 mo...
November 6, 2016: World Journal of Nephrology
https://www.readbyqxmd.com/read/27871893/clinical-effects-of-pre-transplant-serum-25-hydroxyvitamin-d-level-on-post-transplant-immunologic-and-non-immunologic-outcomes-in-kidney-transplant-recipients
#8
Tae Hyun Ban, Jeong Ho Kim, Han Beol Jang, Yoon Seo Lee, Bum Soon Choi, Cheol Whee Park, Chul Woo Yang, Yong-Soo Kim, Byung Ha Chung
BACKGROUND: The aim of this study was to investigate the effects of pre-transplant serum 25-hydroxyvitamin D (25(OH)D) level on non-immunologic and immunologic aspects of post-transplant clinical outcomes in kidney transplant recipients (KTRs). METHODS: We investigated 174 KTRs with low immunologic risk at baseline. We divided the patients into three groups according to baseline serum 25(OH)D level and compared the post-transplant clinical outcomes of acute rejection, infectious complications, and osteoporosis among the groups...
November 18, 2016: Transplant Immunology
https://www.readbyqxmd.com/read/27871759/rabbit-atg-or-basiliximab-induction-for-rapid-steroid-withdrawal-after-renal-transplantation-harmony-an-open-label-multicentre-randomised-controlled-trial
#9
Oliver Thomusch, Michael Wiesener, Mirian Opgenoorth, Andreas Pascher, Rainer Peter Woitas, Oliver Witzke, Bernd Jaenigen, Markus Rentsch, Heiner Wolters, Thomas Rath, Tülay Cingöz, Urs Benck, Bernhard Banas, Christian Hugo
BACKGROUND: Standard practice for immunosuppressive therapy after renal transplantation is quadruple therapy using antibody induction, low-dose tacrolimus, mycophenolate mofetil, and corticosteroids. Long-term steroid intake significantly increases cardiovascular risk factors with negative effects on the outcome, especially post-transplantation diabetes associated with morbidity and mortality. In this trial, we examined the efficacy and safety parameters of rapid steroid withdrawal after induction therapy with either rabbit antithymocyte globulin (rabbit ATG) or basiliximab in immunologically low-risk patients during the first year after kidney transplantation...
November 18, 2016: Lancet
https://www.readbyqxmd.com/read/27870356/clinical-and-immunological-relevance-of-antibodies-in-solid-organ-transplantation
#10
REVIEW
N K Mehra, A K Baranwal
The two important issues affecting recipients of solid organ transplants and of importance to immunologists are (i) sensitization of the recipient to HLA antigens and the resultant humoral immune response leading to the development of anti-HLA antibodies; and ii) development of robust assays for early detection of humoral rejection post-transplant. Evidence from several studies clearly indicates that presence of circulating anti-HLA antibodies especially donor specific leads to early graft loss and high titres of DSA may even lead to hyperacute or accelerated acute rejection...
December 2016: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/27862352/de-novo-donorspecific-anti-hla-antibodies-after-kidney-transplantation-are-associated-with-impaired-graft-outcome-independently-of-their-c1q-binding-ability
#11
Teresa Kauke, Cornelia Oberhauser, Viviane Lin, Michaela Coenen, Michael Fischereder, Andrea Dick, Ulf Schoenermarck, Markus Guba, Joachim Andrassy, Jens Werner, Bruno Meiser, Martin Angele, Manfred Stangl, Antje Habicht
BACKGROUND: Many aspects of post-transplant monitoring of donorspecific (DSA) and non-donorspecific (nDSA) anti-HLA antibodies on renal allograft survival are still unclear. Differentiating them by their ability to bind C1q may offer a better risk assessment. METHODS: We retrospectively investigated the clinical relevance of de novo C1q-binding anti-HLA antibodies on graft outcome in 611 renal transplant recipients. Acute rejection (AR), renal function and graft survival were assessed within a mean follow-up of 6...
November 18, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27858871/case-report-brincidofovir-induced-reversible-severe-acute-kidney-injury-in-2-solid-organ-transplant-for-treatment-of-cytomegalovirus-infection
#12
Emmanuel Faure, Tatiana Galperine, Olivier Cannesson, Sophie Alain, Viviane Gnemmi, Celine Goeminne, Annie Dewilde, Johana Béné, Mohamed Lasri, Célia Lessore de Sainte Foy, Arnaud Lionet
RATIONALE: Resistant cytomegalovirus-mediated infections are increasing in solid organ recipient with few available alternative treatments. Brincidofovir is an oral broad-spectrum antiviral in development for prevention and treatment of viral infection, particularly cytomegalovirus. PATIENTS CONCERNS: Although brincidofovir is an analogue of cidofovir, previous studies reported no renal toxicity. DIAGNOSES: Here, we report 2 cases of severe tubular necrosis in solid organ recipients, 1 heart and 1 kidney transplant...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27851743/effect-of-the-obesity-epidemic-on-kidney-transplantation-obesity-is-independent-of-diabetes-as-a-risk-factor-for-adverse-renal-transplant-outcomes
#13
Jennifer M Kwan, Zahraa Hajjiri, Ahmed Metwally, Patricia W Finn, David L Perkins
BACKGROUND: Obesity is a growing epidemic in most developed countries including the United States resulting in an increased number of obese patients with end-stage renal disease. A previous study has shown that obese patients with end-stage renal disease have a survival benefit with transplantation compared with dialysis. However, due to serious comorbidities, many centers place restrictions on the selection of obese patients for transplantation. Further, due to obese patients having an increased risk of diabetes, it is unclear whether obesity can be an independent risk, independent of diabetes for increasing adverse renal transplant outcomes...
2016: PloS One
https://www.readbyqxmd.com/read/27846156/plasma-c4d-endothelial-microvesicles-increase-in-acute-antibody-mediated-rejection
#14
Cindy M Tower, Morayma Reyes, Karen Nelson, Nicolae Leca, Niamh Kieran, Kimberly Muczynski, Jonathan A Jefferson, Christopher Blosser, Aleksandra Kukla, David Maurer, Wayne Chandler, Behzad Najafian
BACKGROUND: Antibody mediated rejection (AMR) is a major cause of kidney allograft loss. Currently, AMR diagnosis relies on biopsy which is an invasive procedure. A noninvasive biomarker of acute AMR could lead to early diagnosis and treatment of this condition and improve allograft outcome. Microvesicles are membrane bound vesicles released from the cell surface following injury. We hypothesized that since AMR is associated with allograft endothelial injury and C4d deposition, plasma microvesicles positive for endothelial (CD144) marker and C4d are increased in this condition...
November 15, 2016: Transplantation
https://www.readbyqxmd.com/read/27833442/stat4-gene-polymorphism-in-patients-after-renal-allograft-transplantation
#15
Ewa Dąbrowska-Żamojcin, Violetta Dziedziejko, Krzysztof Safranow, Leszek Domański, Sylwia Słuczanowska-Głabowska, Andrzej Pawlik
INTRODUCTION: STAT4 (signal transducer and activator of transcription 4) is involved in the regulation of innate and adaptive immune responses. Some studies have suggested that STAT4 may be involved in the immune response after graft transplantation. Several polymorphisms in the STAT4 gene have been identified. The most commonly studied polymorphism in the STAT4 gene is rs7574865. In our study, we examined whether this polymorphism is associated with the early and late functions of renal allografts...
2016: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/27821629/polyomavirus-reactivation-and-immune-responses-to-kidney-specific-self-antigens-in-transplantation
#16
Michael E Seifert, Muthukumar Gunasekaran, Timothy A Horwedel, Reem Daloul, Gregory A Storch, Thalachallour Mohanakumar, Daniel C Brennan
Humoral immune responses against donor antigens are important determinants of long-term transplant outcomes. Reactivation of the polyomavirus BK has been associated with de novo antibodies against mismatched donor HLA antigens in kidney transplantation. The effect of polyomavirus reactivation (BK viremia or JC viruria) on antibodies to kidney-specific self-antigens is unknown. We previously reported excellent 5-year outcomes after minimization of immunosuppression for BK viremia and after no intervention for JC viruria...
November 7, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27819323/donor-and-recipient-genetic-variants-in-nlrp3-associate-with-early-acute-rejection-following-kidney-transplantation
#17
Mark C Dessing, Jesper Kers, Jeffrey Damman, Gerjan J Navis, Sandrine Florquin, Jaklien C Leemans
NLRP3 (NOD-like receptor family, pyrin domain containing 3) is a member of the inflammasome family and is of special interest in renal disease. Experimental studies have shown that Nlrp3 plays a significant role in the induction of renal damage and dysfunction in acute and chronic renal injury. However, the role of NLRP3 in human renal disease is completely unknown. From a retrospective cohort study, we determined in 1271 matching donor and recipient samples if several NLRP3 single nucelotide polymorphisms (SNPs) were associated with primary non-function (PNF), delayed graft function (DGF), biopsy-proven acute rejection (BPAR) and death-censored graft and patient survival...
November 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27812144/diagnostic-performance-of-fas-ligand-mrna-expression-for-acute-rejection-after-kidney-transplantation-a-systematic-review-and-meta-analysis
#18
Baoli Heng, Hongwen Ding, Haolin Ren, Liping Shi, Jie Chen, Xun Wu, Caiyong Lai, Ganshen Yu, Yin Xu, Zexuan Su
BACKGROUND: The value of Fas ligand (FASL) as a diagnostic immune marker for acute renal rejection is controversial; this meta-analysis aimed to clarify the role of FASL in acute renal rejection. METHODS: The relevant literature was included by systematic searching the MEDLINE, EMBASE, and Cochrane Library databases. Accuracy data for acute rejection (AR) and potential confounding variables (the year of publication, area, sample source, quantitative techniques, housekeeping genes, fluorescence staining, sample collection time post-renal transplantation, and clinical classification of AR) were extracted after carefully reviewing the studies...
2016: PloS One
https://www.readbyqxmd.com/read/27808277/the-influence-of-warm-ischemia-elimination-on-kidney-injury-during-transplantation-clinical-and-molecular-study
#19
Dorota Kamińska, Katarzyna Kościelska-Kasprzak, Paweł Chudoba, Agnieszka Hałoń, Oktawia Mazanowska, Agnieszka Gomółkiewicz, Piotr Dzięgiel, Dominika Drulis-Fajdasz, Marta Myszka, Agnieszka Lepiesza, Wojciech Polak, Maria Boratyńska, Marian Klinger
Kidney surface cooling was used during implantation to assess the effect of warm ischemia elimination on allograft function, histological changes and immune-related gene expression. 23 recipients were randomly assigned to a group operated on with kidney surface cooling during implantation (ice bag technique, IBT group), and the other 23 recipients receiving the contralateral kidney from the same donor were operated on with a standard technique. Three consecutive kidney core biopsies were obtained during the transplantation procedure: after organ recovery, after cold ischemia and after reperfusion...
November 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27805534/weight-gain-after-kidney-transplant
#20
Nilgün Aksoy
OBJECTIVES: Weight gain and obesity are frequent problems for renal transplant patients. The purpose of this review is to show why weight gain is experienced by patients after kidney transplant and the significance of prevention. MATERIALS AND METHODS: To investigate this topic, PubMed and Ulakbim databases were searched with the following key words: renal transplant and transplantation, weight gain, and obesity. RESULTS: Weight gain frequently appears in the first year after transplant, and it is reported to be a common problem for patients within the first 6 months...
November 2016: Experimental and Clinical Transplantation
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