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https://www.readbyqxmd.com/read/28449350/scandiatransplant-acceptable-mismatch-program-stamp-a-bridge-to-transplanting-highly-immunized-patients
#1
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/28449211/operational-tolerance-in-kidney-transplantation-and-associated-biomarkers
#2
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/28448501/employment-12-months-after-kidney-transplantation-an-in-depth-bio-psycho-social-analysis-of-the-swiss-transplant-cohort
#3
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
#4
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
#5
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/28447925/luminex-solid-phase-crossmatch-for-de-novo-donor-specific-antibodies-in-living-donor-related-transplants
#6
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/28446536/donor-specific-antibodies-in-kidney-transplant-recipients
#7
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
#8
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
#9
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/28445627/psychosocial-wellbeing-after-living-kidney-donation-a-longitudinal-prospective-study
#10
Hannah Maple, Joseph Chilcot, John Weinman, Nizam Mamode
Living kidney donation (LKD) has become routine practice across the world as the gold standard treatment of end-stage renal failure. Whilst the physical risks and harms of LKD surgery are well documented, relatively little is known about psychosocial outcomes. The aim of this study was to determine whether it was possible to quantify the psychosocial impact of LKD. A prospective longitudinal study of 93 living kidney donors was performed. Data were collected pre-operatively, and 3 and 12 months after donation...
April 26, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28445619/mtor-inhibitors-and-risk-for-chronic-antibody-mediated-rejection-after-kidney-transplantation-where-are-we-now
#11
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
#12
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
#13
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/28443056/concerns-mental-health-and-quality-of-life-in-living-kidney-donation-parent-donor-candidates-worry-less-about-themselves
#14
M Ángeles Pérez-San-Gregorio, Agustín Martín-Rodríguez, Asunción Luque-Budia, Rupert Conrad
Even though the majority of living kidney donor candidates appear in good mental health and show few concerns little is known concerning the influence of the type of donor-recipient relationship on donor candidates' specific concerns with regard to kidney donation. 136 donor candidates at Virgen del Rocío University Hospital of Seville filled in the Scale of Concerns Regarding Living Kidney Donation of whom 105 donor candidates and their corresponding recipients (105 patients with End-Stage Renal Disease) were further evaluated with regard to mental health (Hospital Anxiety and Depression Scale, Beck Depression Inventory-II) and quality of life (SF-36 Health Survey)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28438856/tailoring-the-perfect-fit-for-renal-transplant-recipients-with-end-stage-polycystic-kidney-disease-indications-and-timing-of-native-nephrectomy
#15
REVIEW
Chrysoula Argyrou, Demetrios Moris, Spyridon Vernadakis
BACKGROUND: The ideal timing of native nephrectomy in relation to kidney transplantation in patients with autosomal-dominant polycystic kidney disease (ADPKD) can be a very puzzling decision for transplant surgeons and remains a matter of debate. This review article aims to present current literature regarding this highly controversial issue. MATERIALS AND METHODS: The MEDLINE/PubMed database was searched using "polycystic kidney disease", "renal/kidney transplantation" and "native nephrectomy" as key words...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28437790/utility-in-treating-kidney-failure-in-end-stage-liver-disease-with-simultaneous-liver-kidney-transplantation
#16
Xingxing S Cheng, Margaret R Stedman, Glenn M Chertow, W Ray Kim, Jane C Tan
BACKGROUND: Simultaneous liver-kidney (SLK) transplantation plays an important role in treating kidney failure in patients with end-stage liver disease. It used 5% of deceased donor kidney transplanted in 2015. We evaluated the utility, defined as posttransplant kidney allograft lifespan, of this practice. METHODS: Using data from the Scientific Registry of Transplant Recipients, we compared outcomes for all SLK transplants between January 1, 1995, and December 3, 2014, to their donor-matched kidney used in kidney-alone (Ki) or simultaneous pancreas kidney (SPK) transplants...
May 2017: Transplantation
https://www.readbyqxmd.com/read/28433384/cold-ischemia-time-up-to-16-hours-has-little-impact-on-living-donor-kidney-transplant-outcomes-in-the-era-of-kidney-paired-donation
#17
Jagbir Gill, Caren Rose, Yayuk Joffres, Matthew Kadatz, John Gill
In living donor transplantation, cold ischemia time is a concern in transplants involving kidney paired donation. The impact of cold ischemia time over eight hours is unknown. Here we examined the association of cold ischemia time with delayed graft function and allograft loss among 48,498 living recipients in the Scientific Registry of Transplant Recipients registry. The incidence of delayed graft function was low but significantly higher among patients with longer cold ischemia times (0-2.0 hours: 3.3%; 2...
April 19, 2017: Kidney International
https://www.readbyqxmd.com/read/28429125/low-plasma-homoarginine-concentration-is-associated-with-high-rates-of-all-cause-mortality-in-renal-transplant-recipients
#18
Arslan Arinc Kayacelebi, Isidor Minović, Erik Hanff, Anne-Roos S Frenay, Martin H de Borst, Martin Feelisch, Harry van Goor, Stephan J L Bakker, Dimitrios Tsikas
In renal transplant recipients (RTR), we recently found that low urinary excretion of homoarginine (hArg) is associated with mortality and graft failure. However, it is not known whether such prospective associations also hold true for plasma concentrations of hArg. In the present study, we therefore determined plasma concentrations of hArg in the same cohort, i.e. in 687 RTR (functioning graft ≥1 year), and in 140 healthy donors, before and after kidney donation. Plasma hArg concentrations were significantly lower in RTR compared to healthy controls [1...
April 20, 2017: Amino Acids
https://www.readbyqxmd.com/read/28429072/kidney-development-and-perspectives-for-organ-engineering
#19
REVIEW
Ganna Reint, Aleksandra Rak-Raszewska, Seppo J Vainio
Organ transplantation is currently the best strategy for treating end stage renal disease (ESRD) but the numbers of donor kidneys available are not sufficient to meet the needs of the ever-increasing ESRD population. Therefore, developments in the field of tissue engineering are necessary to provide alternative treatments. Decellularization and three-dimensional (3D) bioprinting strategies may serve as attractive novel options. Since successful tissue engineering requires an in -depth understanding of organ development and regulatory pathways, we discuss signaling in renal development and the composition of the renal extracellular matrix before presenting progress in the decellularization and 3D bioprinting fields...
April 20, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28428030/complement-inhibition-with-eculizumab-for-thrombotic-microangiopathy-rescues-a-living-donor-kidney-transplant-in-a-patient-with-antiphospholipid-antibody-syndrome
#20
Praveen Ramakrishnan Geethakumari, Patrick Mille, Rakesh Gulati, Srikanth Nagalla
Antiphospholipid antibody syndrome (APS) is an enigmatic heterogeneous disorder despite several revelations in its pathobiology. Renal transplantation in patients with APS has been notoriously difficult due to the high risk of development of thrombotic microangiopathy (TMA), which is often refractory to conventional treatment modalities such as aggressive anticoagulation and plasmapheresis. We describe a case of a 58-year-old male with secondary APS undergoing living unrelated renal transplantation for end-stage renal disease from lupus nephritis...
March 10, 2017: Transfusion and Apheresis Science
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