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Kidney transplant

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https://www.readbyqxmd.com/read/28449409/real-time-central-assessment-of-kidney-transplant-indication-biopsies-by-microarrays-the-intercomex-study
#1
Philip F Halloran, Jeff Reeve, Enver Akalin, Olivier Aubert, Georg A Bohmig, Daniel Brennan, Jonathan Bromberg, Gunilla Einecke, Farsad Eskandary, Clement Gosset, Jean-Paul Duong Van Huyen, Gaurav Gupta, Carmen Lefaucheur, Andrew Malone, Roslyn B Mannon, Daniel Seron, Joana Sellares, Matthew Weir, Alexandre Loupy
We performed a prospective trial to assess the feasibility of real-time central molecular assessment of kidney transplant biopsies from 10 North American and European centers. Biopsies taken one day to 34 years post-transplant were stabilized in RNAlater, couriered overnight at ambient temperature to the central laboratory, and processed (29 hour workflow) using microarrays to assess T cell-mediated and antibody-mediated rejection (TCMR, ABMR). Of 538 biopsies submitted, 519 (96%) were sufficient for microarray analysis (average length 3mm)...
April 27, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28449350/scandiatransplant-acceptable-mismatch-program-stamp-a-bridge-to-transplanting-highly-immunized-patients
#2
P Koefoed-Nielsen, I Weinreich, M Bengtsson, J Lauronen, C Naper, M Gäbel, S S Sørensen, L Wennberg, A V Reisaeter, B K Møller
BACKGROUND: Highly immunized patients are a challenge for organ transplantation programs. One way of increasing the likelihood of transplantation in this group of patients is to expand the possible donations by defining acceptable HLA mismatches. In the Scandiatransplant Acceptable Mismatch Program (STAMP), a de-centralized approach has been implemented in 2009. AIMS: The program has been improved during the years from utilizing HLA-A, -B, -DR matching only to include typing of all deceased donors for HLA-A, -B, -C, -DRB1 and -DQB1...
April 27, 2017: HLA
https://www.readbyqxmd.com/read/28449252/serum-phosphorus-levels-and-fracture-following-renal-transplantation
#3
Jasna Aleksova, Phillip Wong, William R Mulley, Kay Weng Choy, Robert McLachlan, Peter R Ebeling, Peter G Kerr, Frances Milat
PURPOSE: Increased fracture rates are observed in renal transplant recipients (RTRs) compared with the general population. Risk factors include age, diabetes, dialysis vintage, immunosuppression, and mineral and bone disorders(1). Low serum phosphorus levels occur post-transplantation; however its relationship with fracture risk has not been evaluated. The purpose of this study was to evaluate risk factors for fracture in RTRs at a single tertiary referral centre. METHODS: A retrospective cross-sectional analysis of 146 patients (75M, 71F) who had been referred for dual energy x-ray densitometry (DXA) post-renal transplantation was performed...
April 27, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28449211/operational-tolerance-in-kidney-transplantation-and-associated-biomarkers
#4
REVIEW
Annick Massart, Lidia Ghisdal, Marc Abramowicz, Daniel Abramowicz
In the 1960s, our predecessors won a historical battle against acute rejection and ensured that transplantation became a common life-saving treatment. In parallel to this success, or perhaps because of it, we lost the battle for long-lived transplants, being overwhelmed with chronic immune insults and the toxicities of immunosuppression. It is likely that current powerful treatments block acute rejection, but at the same time condemn the few circulating donor cells that would have been able to elicit immunoregulatory host responses towards the allograft...
April 27, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28449018/accuracy-of-ethnicity-data-recorded-in-hospital-based-patient-clinical-records-and-the-australia-and-new-zealand-dialysis-and-transplant-registry
#5
Matthew Page, Emma H Wyeth, Ari Samaranayaka, Bronwen McNoe, Rachael Walker, John Schollum, Mark Marshall, Robert Walker, Sarah Derrett
AIM: Sustained health inequities are experienced by indigenous and minority populations. Accurate ethnicity data are fundamental to healthcare planning and provision and monitoring of health outcomes to address such inequities. This study investigated the accuracy of ethnicity data in a large clinical registry of end-stage kidney disease patients (the Australia and New Zealand Dialysis and Transplant Registry; ANZDATA) and hospital-based patient clinical records compared with self-reported ethnicity data collected in the 'Dialysis Outcomes in those aged ≥65 years' (DOS65+) study...
April 28, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28448501/employment-12-months-after-kidney-transplantation-an-in-depth-bio-psycho-social-analysis-of-the-swiss-transplant-cohort
#6
Brigitta Danuser, Amira Simcox, Regina Studer, Michael Koller, Pascal Wild
BACKGROUND: Return to work with or after a chronic disease is a dynamic process influenced by a variety of interactions between personal, work, societal and medical resources or constraints. The aim of this study was to identify predictors for employment 12 months after transplantation in kidney patients, applying a bio-psycho-social model. METHODS: All kidney patients followed in the Swiss Transplant Cohort between May 2008 and December 2012, aged 18 to 65 were assessed before, 6 and 12 months after transplantation...
2017: PloS One
https://www.readbyqxmd.com/read/28447929/five-year-follow-up-on-transplanted-organs-from-donors-after-brain-death-after-acute-stroke
#7
Vera Spatenkova, Eva Pokorna, Petr Suchomel
OBJECTIVES: Efficient intensive care donor management can help alleviate the shortage of organs for transplant. The aim of this study was to investigate the efficiency of management of donors after brain death from our neurointensive care unit. MATERIALS AND METHODS: We conducted a prospective observational 5-year follow-up on 29 transplanted organs from 14 brain-dead donors after acute stroke (7 subarachnoid and 4 intracerebral hemorrhages, 3 ischemic strokes)...
April 27, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28447928/evaluation-of-three-dimensional-versus-conventional-laparoscopy-for-kidney-transplant-procedures-in-a-human-cadaveric-model
#8
Bulang He, Lingjun Mou, Ronald De Roo, Gabrielle C Musk, Jeffrey M Hamdorf
OBJECTIVES: There are increased reports that kidney transplant can be performed by laparoscopic surgery. The further development of this technique could revolutionize human kidney transplant surgery. However, laparoscopic kidney transplant demands a high level of skill for vascular anastomoses. The emerging technology of the three-dimensional, high-definition laparoscopic system may facilitate the application of this technique. Therefore, in this study, we evaluated this system in performing kidney transplant surgery versus the two-dimensional laparoscopic system...
April 27, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28447926/treatment-of-primary-central-nervous-system-posttransplant-lymphoproliferative-disorder-in-an-adult-kidney-transplant-recipient-a-case-report
#9
Mashya Abbassi, Roger Riley, Mark Malkin, Yang Tang, Bipin Rajendran, Victor Yazbeck
Posttransplant lymphoproliferative disorder is a serious complication of solid-organ transplant. Extranodal involvement is common; however, isolated involvement of the central nervous system is extremely rare and represents a particularly difficult therapeutic challenge with no current consensus on optimal treatment. Here, we describe a 70-year-old woman who developed Epstein-Barr virus-related primary central nervous system lymphoma 19 months after kidney transplant. Immunosuppression was reduced, and the patient was started on high-dose methotrexate, which was complicated by acute kidney injury and discontinued...
April 27, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28447925/luminex-solid-phase-crossmatch-for-de-novo-donor-specific-antibodies-in-living-donor-related-transplants
#10
Sonia Mehrotra, Raj Kumar Sharma, Mahabaleshwar Mayya, Amit Gupta, Narayan Prasad, Anupma Kaul, Dharmendra Singh Bhadauria
OBJECTIVES: There are no reports of de novo donor-specific antibody monitoring by a low-cost solid-phase crossmatch assay using donor lysate after renal transplant. MATERIALS AND METHODS: We prospectively evaluated 121 complement-dependant cytotoxicity crossmatch-negative living-donor kidney transplant recipients for development of de novo donor-specific antibodies (class I and II HLA) by solid-phase crossmatch Luminex assay after transplant. RESULTS: Of 121 recipients in our study group, 26 (21...
April 27, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28447264/erratum-to-the-exciting-bench-to-bedside-journey-of-cell-therapies-for-acute-kidney-injury-and-renal-transplantation
#11
Sergio Dellepiane, Davide Medica, Alessandro Domenico Quercia, Vincenzo Cantaluppi
No abstract text is available yet for this article.
April 26, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28446536/donor-specific-antibodies-in-kidney-transplant-recipients
#12
REVIEW
Rubin Zhang
Donor-specific antibodies have become an established biomarker predicting antibody-mediated rejection. Antibody-mediated rejection is the leading cause of graft loss after kidney transplant. There are several phenotypes of antibody-mediated rejection along post-transplant course that are determined by the timing and extent of humoral response and the various characteristics of donor-specific antibodies, such as antigen classes, specificity, antibody strength, IgG subclasses, and complement binding capacity...
April 26, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28446462/sodium-storage-in-human-tissues-is-mediated-by-glycosaminoglycan-expression
#13
Michael Fischereder, Bernhard Michalke, Elisa Schmoeckel, Antje Habicht, Raphael Kunisch, Ivana Pavelic, Bermadett Szabados, Ulf Schönermarck, Peter Nelson, Manfred Stangl
The current paradigm regarding sodium handling in animals and humans postulates that total body sodium is regulated predominately via regulation of extracellular volume. Active sodium storage independent of volume retention is thought to be negligible. However, studies in animals, hypertensive patients and healthy humans suggest non-osmotic storage of sodium in skin. We hypothesized that tissue sodium concentrations ([Na]T) found in humans vary and reflect regulation due to variable glycosaminoglycan content due to variable expression of XYLT-1...
April 26, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28445794/post-transplant-malignancy-after-pediatric-kidney-transplantation-retrospective-analysis-of-incidence-and-risk-factors-in-884-patients-transplanted-between-1963-and-2015-at-the-university-of-minnesota
#14
Oscar K Serrano, Ananta S Bangdiwala, David M Vock, Srinath Chinnakotla, Ty B Dunn, Erik B Finger, Raja Kandaswamy, Timothy L Pruett, John S Najarian, Arthur J Matas, Blanche M Chavers
BACKGROUND: Post-transplant malignancy (PTM) remains a concern among pediatric kidney transplant (PKT) recipients. STUDY DESIGN: Between 1963 and 2015, 884 pediatric (age: 0-17 years old) recipients received 1055 PKTs at our institution. Cox proportional hazards models were constructed to identify risk factors for PTM after PKT with time-to-first-PTM as a primary outcome. Secondly, the hazard of death or graft loss was calculated in patients who developed PTM. RESULTS: Median patient survival was 33 years (interquartile range [IQR]: 18...
April 23, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28445619/mtor-inhibitors-and-risk-for-chronic-antibody-mediated-rejection-after-kidney-transplantation-where-are-we-now
#15
REVIEW
Philippe Grimbert, Olivier Thaunat
Antibody-mediated rejection (AMR) usually starts with generation of donor-specific anti-HLA antibodies (DSA), arising from a B-cell response to antigen recognition. In vitro and preclinical data demonstrate that mammalian target of rapamycin (mTOR) inhibition attenuates the mTOR-mediated intracellular signaling pathway involved in AMR-related kidney damage. The limited available data from immunological studies in kidney transplant patients, however, have not shown such effects in vivo. In terms of clinical immunosuppression, the overriding influence on rates of de novo DSA (dnDSA) or AMR - regardless of the type of regimen - is patient adherence...
April 26, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28444910/characterization-of-porcine-endogenous-retrovirus-expression-in-neonatal-and-adult-pig-pancreatic-islets
#16
Nizar I Mourad, Claire Crossan, Victoria Cruikshank, Linda Scobie, Pierre Gianello
BACKGROUND: Pig islets represent an alternative to the current modes of treatment for patients with diabetes. However, the concerns over pathogen transmission including that of PERV limit their immediate, widespread usage in humans. It has been previously demonstrated that PERV copy number and particularly expression levels can vary considerably between individuals and within different tissues of a single animal. In general, expression levels have been found to be particularly low in the pancreas compared to other porcine tissues suggesting a reduced risk associated with the use of this tissue...
April 26, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28444815/endoscopic-findings-following-retroperitoneal-pancreas-transplantation
#17
Alexey Valer'evich Pinchuk, Ilya Victorovich Dmitriev, Nonna Valer'evna Shmarina, Yury Sergeevich Teterin, Aslan Galievich Balkarov, Roman Vasil'evich Storozhev, Yuri Andreevich Anisimov, Ali Magomedovich Gasanov
AIM: An evaluation of the efficacy of endoscopic methods for the diagnosis and correction of surgical and immunological complications after retroperitoneal pancreas transplantation. MATERIALS AND METHODS: From October 2011 to March 2015, 27 patients underwent simultaneous retroperitoneal pancreas-kidney transplantation (SPKT). Diagnostic oesophagogastroduodenoscopy (EGD) with protocol biopsy of the donor and recipient duodenal mucosa and endoscopic retrograde pancreatography (ERP) were performed to detect possible complications...
April 26, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28443094/serum-igg-antibodies-from-pregnant-women-reacting-to-mimotopes-of-simian-virus-40-large-t-antigen-the-viral-oncoprotein
#18
Elisa Mazzoni, Mariantonietta Di Stefano, Josè R Fiore, Federica Destro, Marco Manfrini, John Charles Rotondo, Maria V Casali, Fortunato Vesce, Pantaleo Greco, Gennaro Scutiero, Fernanda Martini, Mauro G Tognon
Simian virus 40 (SV40) large T antigen (LT) coding sequences were revealed in different human samples, whereas SV40 antibodies (Ab) were detected in human sera of cancer patients and healthy individuals, although with a lower prevalence. Previous studies carried out by the neutralization assay gave a SV40 seroprevalence, in the general population, up to 8%, although higher rates, 12%, were detected in kidney transplant children, in a group of HIV-positive patients, and in healthy females. In this study, serum samples from pregnant women, together with those from non-pregnant women, were analyzed to check the prevalence of IgG Ab reacting to SV40 LT antigens...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28441936/rationale-and-design-of-bistro-a-randomized-controlled-trial-to-determine-whether-bioimpedance-spectroscopy-guided-fluid-management-maintains-residual-kidney-function-in-incident-haemodialysis-patients
#19
Simon J Davies, Fergus J Caskey, David Coyle, Elizabeth Lindley, Jamie Macdonald, Sandip Mitra, Martin Wilkie, Andrew Davenport, Ken Farrington, Indranil Dasgupta, Paula Ormandy, Lazaros Andronis, Ivonne Solis-Trapala, Julius Sim
BACKGROUND: Preserved residual kidney function (RKF) and normal fluid status are associated with better patient outcomes in incident haemodialysis patients. The objective of this trial is to determine whether using bioimpedance technology in prescribing the optimal post-dialysis weight can reduce the rate of decline of RKF and potentially improve patient outcomes. METHODS/DESIGN: 516 pateints commencing haemodialysis, aged >18 with RKF of > 3 ml/min/1...
April 26, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28441179/kidney-transplant-outcomes-in-hiv-serodiscordant-recipient-pairs
#20
Esther N Gathogo, Sapna Shah, Frank A Post
No abstract text is available yet for this article.
May 15, 2017: AIDS
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