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https://www.readbyqxmd.com/read/28339671/characteristics-of-donor-specific-anti-hla-antibodies-and-outcome-in-renal-transplant-patients-treated-with-a-standardized-induction-regimen
#1
Daniel Zecher, Christian Bach, Christoph Staudner, Carsten A Böger, Tobias Bergler, Bernhard Banas, Bernd M Spriewald
Background.: Pre-transplant donor-specific anti-human leukocyte antigen (HLA) antibodies (DSA) have been associated with antibody-mediated rejection (AMR) and early kidney allograft loss. Uncertainties remain regarding the general applicability of these findings and the optimal induction therapy in DSA-positive patients. Methods.: Pre-transplant sera from 174 patients receiving a crossmatch-negative kidney transplant were retrospectively analysed for DSA using Luminex technology...
February 18, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28338457/transplant-renal-vein-thrombosis
#2
Khaled El Zorkany, Julie-Michelle Bridson, Ajay Sharma, Ahmed Halawa
Transplant renal vein thrombosis usually occurs early after surgery with a reported prevalence of 0.1% to 4.2%. It is a devastating event that ultimately leads to graft loss in almost all cases. There are many predisposing factors related to donor, recipient, surgery, and immunosuppression, with mechanical factors being considered the most common causes of transplant renal vein thrombosis. The clinical manifestations of acute renal vein thrombosis are nonspecific and are not dissimilar to the features of urine leak, urinary obstruction, or severe acute rejection...
April 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28338305/prostate-cancer-in-renal-transplant-recipients
#3
Benjamin A Sherer, Krishnan Warrior, Karl Godlewski, Martin Hertl, Oyedolamu Olaitan, Ajay Nehra, Leslie Allan Deane
As patients with end-stage renal disease are receiving renal allografts at older ages, the number of male renal transplant recipients (RTRs) being diagnosed with prostate cancer (CaP) is increasing. Historically, the literature regarding the management of CaP in RTR's is limited to case reports and small case series. To date, there are no standardized guidelines for screening or management of CaP in these complex patients. To better understand the unique characteristics of CaP in the renal transplant population, we performed a literature review of PubMed, without date limitations, using a combination of search terms including prostate cancer, end stage renal disease, renal transplantation, prostate cancer screening, prostate specific antigen kinetics, immunosuppression, prostatectomy, and radiation therapy...
March 24, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28332960/evaluation-of-transplanted-kidneys-and-comparison-with-healthy-volunteers-and-kidney-donors-with-diffusion-weighted-magnetic-resonance-imaging-initial-experience
#4
Ümit Özçelik, Halime Çevik, Hüseyin Yüce Bircan, Feza Yarbuğ Karakayalı, İclal Işıklar, Mehmet Haberal
OBJECTIVES: The aim of this study was to evaluate the feasibility of diffusion-weighted magnetic resonance, by comparing imaging in renal allograft recipients for functional assessment of kidney transplants versus imaging of these features in healthy volunteers and kidney donors with native kidneys. MATERIALS AND METHODS: Seventy renal transplant recipients (group A) with stable graft function at postoperative month 1, 40 healthy volunteers (group B), and 40 kidney donors (group C) underwent diffusion-weighted magnetic resonance imaging...
March 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28332958/effect-of-prediabetes-on-allograft-survival-and-evolution-of-new-onset-diabetes-after-transplant-in-deceased-donor-kidney-transplant-recipients-during-long-term-follow-up
#5
Frank Peter Tillmann, Amira Radtke, Lars Christian Rump, Ivo Quack
OBJECTIVES: This study investigated the effect of prediabetes in long-term deceased-donor renal transplant recipients regarding graft survival, graft function, and evolution of new-onset diabetes after transplant compared with a control group of graft recipients with normal glucose tolerance test results. MATERIALS AND METHODS: This was a follow-up trial of 187 deceased-donor renal transplant recipients. Based on oral glucose tolerance test results, the cohort was divided into groups A and B, comprising individuals with normal glucose metabolism (n = 130, 69...
March 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28321809/robotic-renal-transplant-recipient-surgery-with-vaginally-inserted-allograft
#6
Vishnu Raveendran, Kishore Thekke Adiyat, Ramaprasad Manasseri Koduveli, Roy John
No abstract text is available yet for this article.
March 20, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28318622/computer-assisted-topological-analysis-of-renal-allograft-inflammation-adds-to-risk-evaluation-at-diagnosis-of-humoral-rejection
#7
Antoine Sicard, Vannary Meas-Yedid, Maud Rabeyrin, Alice Koenig, Stephanie Ducreux, Frederique Dijoud, Valerie Hervieu, Lionel Badet, Emmanuel Morelon, Jean Christophe Olivo-Marin, Valerie Dubois, Olivier Thaunat
Antibody-mediated rejection is associated with heterogeneous kidney allograft outcomes. Accurate evaluation of risk for graft loss at time of diagnosis is necessary to offer personalized treatment. In contrast with serological and molecular assessment, morpho-histological evaluation of antibody-mediated rejection lesions has not significantly evolved. This relies on Banff classifications designed to be of diagnostic discriminatory power rather than prognostic and face quantitative and qualitative limitations...
March 15, 2017: Kidney International
https://www.readbyqxmd.com/read/28315636/pembrolizumab-for-metastatic-melanoma-in-a-renal-allograft-recipient-with-subsequent-graft-rejection-and-treatment-response-failure-a-case-report
#8
Vineet Kwatra, Narayan V Karanth, Kelum Priyadarshana, Michail Charakidis
BACKGROUND: Transplant patients were excluded from the pivotal phase III trials of checkpoint inhibitors in metastatic melanoma. The efficacy and toxicity profiles of checkpoint inhibitors in this cohort of patients are not well described. To the best of our knowledge, this is the first case report of a renal transplant patient with stage IV melanoma treated with a programmed cell death protein 1 checkpoint inhibitor that led to both treatment failure and renal graft rejection. CASE PRESENTATION: We present a case of a 58-year-old white man with a long-standing cadaveric renal transplant who was diagnosed with a B-Raf Proto-Oncogene, Serine/Threonine Kinase wild-type metastatic melanoma...
March 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28314079/low-serum-testosterone-is-associated-with-graft-function-early-after-heart-transplantation
#9
Gregor Poglajen, Mojca Jensterle, Nika Kravos, Andrej Janež, Bojan Vrtovec
BACKGROUND: We sought to investigate a correlation between serum testosterone levels and graft function early after heart transplantation. METHODS: In a cross-sectional study we measured serum testosterone levels 4 weeks after heart transplantation in 49 consecutive male recipients. Echocardiography was done to evaluate graft function. Low serum testosterone was defined as <11 nmol/L. RESULTS: Low serum testosterone was present in 21 (43%) recipients (Group A), and 28 (57%) had normal testosterone levels (Group B)...
March 17, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28296035/sepsis-after-renal-transplantation-clinical-immunological-and-microbiological-risk-factors
#10
Thomas Schachtner, Maik Stein, Petra Reinke
BACKGROUND: As immunosuppressive therapy and allograft survival have improved, the increased incidence of sepsis has become a major hurdle of disease-free survival after renal transplantation. METHODS: We identified 112 of 957 kidney transplant recipients (KTRs) with sepsis. 31 KTRs developed severe sepsis or septic shock, and 30 KTRs died from sepsis. KTRs without sepsis were used for comparison. CMV-specific and alloreactive T-cells were measured using an interferon-γ Elispot-assay...
March 11, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28295652/long-term-survival-following-kidney-transplantation-in-previous-lung-transplant-recipients-an-analysis-of-the-unos-registry
#11
Asishana A Osho, Sameer A Hirji, Anthony W Castleberry, Michael S Mulvihill, Asvin M Ganapathi, Paul J Speicher, Babatunde Yerokun, Laurie D Snyder, Robert D Davis, Mathew G Hartwig
BACKGROUND: Kidney transplantation has been advocated as a therapeutic option in lung recipients who develop end-stage renal disease. This analysis outlines patterns of allograft survival following kidney transplantation in previous lung recipients (KAL). METHODS: Data from the UNOS lung and kidney transplantation registries (1987-2013) were cross-linked to identify lung recipients who were subsequently listed for and/or underwent kidney transplantation. Time-dependent Cox models compared survival in KAL patients vs...
March 10, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28291548/the-role-of-interleukin-17a-in-the-pathogenesis-of-kidney-diseases
#12
REVIEW
Charlotte Cortvrindt, Reinhart Speeckaert, Alena Moerman, Joris R Delanghe, Marijn M Speeckaert
Being a member of the IL-17 family, comprising six structurally related ligands, IL-17A is a cytokine, produced by multiple cell types, such as CD4(+)αβ T cells, γδ T cells, natural killer cells, neutrophils, macrophages, dendritic cells, lymphoid tissue inducer cells, mast cells and plasma cells. IL-17A participates in tissue inflammation by inducing the expression of chemokines, proinflammatory cytokines and matrix metalloproteases. Besides its role in host defence against infectious diseases, IL-17A is involved in different autoimmune and inflammatory diseases...
March 10, 2017: Pathology
https://www.readbyqxmd.com/read/28289708/interruption-of-ox40l-signaling-prevents-costimulation-blockade-resistant-allograft-rejection
#13
William H Kitchens, Ying Dong, David V Mathews, Cynthia P Breeden, Elizabeth Strobert, Maria E Fuentes, Christian P Larsen, Mandy L Ford, Andrew B Adams
The potential of costimulation blockade to serve as a novel transplant immunosuppression strategy has been explored for over 20 years, culminating in the recent clinical approval of belatacept for renal transplant patients. Despite improving long-term graft function and survival compared with calcineurin inhibitors, clinical acceptance of belatacept has been hindered by elevated rates of acute rejection. We examined the signaling pathways required to activate costimulation blockade-resistant alloreactive T cells and identified the OX40/OX40L secondary costimulatory pathway as a promising target...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28289413/mica-and-nkg2d-is-there-an-impact-on-kidney-transplant-outcome
#14
REVIEW
Matilde Risti, Maria da Graça Bicalho
This paper aims to present an overview of MICA and natural killer group 2 member D (NKG2D) genetic and functional interactions and their impact on kidney transplant outcome. Organ transplantation has gone from what can accurately be called a "clinical experiment" to a routine and reliable practice, which has proven to be clinically relevant, life-saving and cost-effective when compared with non-transplantation management strategies of both chronic and acute end-stage organ failures. The kidney is the most frequently transplanted organ in the world (transplant-observatory)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28289274/ruptured-hemangioma-of-a-native-kidney-an-unusual-cause-of-postoperative-hemorrhage-in-kidney-transplant-recipients
#15
Grażyna Poznańska, Michał Wlazlak, Piotr Hogendorf, Dariusz Szymański, Janusz Strzelczyk, Adam Durczyński
BACKGROUND Retroperitoneal bleeding as a consequence of non-traumatic kidney or allograft rupture is well known, but there are no reports on hemorrhagia from a native kidney after allogeneic renal transplantation. Therefore, we present the first such case to be published and highlight the possibility of this complication after renal transplantation. CASE REPORT We report the case of a 28-year-old male patient who developed early post-transplant hemorrhagia from a ruptured native kidney. The patient underwent left-sided nephrectomy...
March 14, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28286934/relationship-between-diurnal-blood-pressure-and-renal-histopathological-changes-in-white-coat-hypertension
#16
Erhan Tatar, Adam Uslu, Funda Tasli, Murat Karatas
BACKGROUND: Multiple epidemiological studies have clearly demonstrated the macrovascular risks associated with white coat hypertension (WCH) or sustained hypertension (SH). In patients with WCH, there is no literature available on renal histopathological changes and that on blood pressure pattern and native kidney outcome is scant. We aimed to clarify the relationship between blood pressure variables and pathological features of kidney biopsies in living kidney donors with WCH. METHODS: This cross-sectional study included living kidney donors with WCH (n = 10) and SH (n = 10), and 20 healthy kidney donors with similar demographic features (control group)...
March 12, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28285802/long-term-prognosis-and-cost-effectiveness-of-left-ventricular-assist-device-as-bridge-to-transplantation-a-systematic-review
#17
Michael Seco, Dong Fang Zhao, Michael J Byrom, Michael K Wilson, Michael P Vallely, John F Fraser, Paul G Bannon
BACKGROUND: This systematic review aimed to evaluate the clinical outcomes and cost-effectiveness of left ventricular assist devices (LVADs) used as bridge to transplantation (BTT), compared to orthotopic heart transplantation (OHT) without a bridge. METHOD: Systematic searches were performed in electronic databases with available data extracted from text and digitized figures. Meta-analysis of short and long-term term post-transplantation outcomes was performed with summation of cost-effectiveness analyses...
March 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28280700/allograft-loss-from-acute-page-kidney-secondary-to-trauma-after-kidney-transplantation
#18
Kazuhiro Takahashi, Rohini Prashar, Krishna G Putchakayala, William J Kane, Jason E Denny, Dean Y Kim, Lauren E Malinzak
We report a rare case of allograft loss from acute Page kidney secondary to trauma that occurred 12 years after kidney transplantation. A 67-year-old Caucasian male with a past surgical history of kidney transplant presented to the emergency department at a local hospital with left lower abdominal tenderness. He recalled that his cat, which weighs 15 lbs, jumped on his abdomen 7 d prior. On physical examination, a small tender mass was noticed at the incisional site of the kidney transplant. He was producing a normal amount of urine without hematuria...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28280693/risk-factors-and-outcomes-of-delayed-graft-function-in-renal-transplant-recipients-receiving-a-steroid-sparing-immunosuppression-protocol
#19
Michelle Willicombe, Anna Rizzello, Dawn Goodall, Vassilios Papalois, Adam G McLean, David Taube
AIM: To analyse the risk factors and outcomes of delayed graft function (DGF) in patients receiving a steroid sparing protocol. METHODS: Four hundred and twenty-seven recipients of deceased donor kidney transplants were studied of which 135 (31.6%) experienced DGF. All patients received monoclonal antibody induction with a tacrolimus based, steroid sparing immunosuppression protocol. RESULTS: Five year patient survival was 87.2% and 94.9% in the DGF and primary graft function (PGF) group respectively, P = 0...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28276660/complement-alternative-pathway-deficiency-in-recipients-protects-kidney-allograft-from-ischemia-reperfusion-injury-and-alloreactive-t-cell-response
#20
Federica Casiraghi, Nadia Azzollini, Marta Todeschini, Sonia Fiori, Regiane Aparecida Cavinato, Paola Cassis, Samantha Solini, Francesca Pezzuto, Marilena Mister, Joshua M Thurman, Ariela Benigni, Giuseppe Remuzzi, Marina Noris
Despite the introduction of novel and more targeted immunosuppressive drugs, the long-term survival of kidney transplants has not improved satisfactorily. Early antigen-independent intra-graft inflammation plays a critical role in the initiation of the alloimmune response and impacts long-term graft function. Complement activation is a key player both in ischemia/reperfusion injury (IRI) as well as in adaptive anti-graft immune response after kidney transplantation. Since the alternative pathway (AP) amplifies complement activation regardless of the initiation pathways and renal IR injured cells undergo uncontrolled complement activation, we wondered whether selective blockade of AP could be a strategy for prolonging kidney graft survival...
March 9, 2017: American Journal of Transplantation
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