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Renal Transplantation

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165 papers 100 to 500 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
https://www.readbyqxmd.com/read/28380212/upregulation-of-microrna-142-3p-in-the-peripheral-blood-and-urinary-cells-of-kidney-transplant-recipients-with-post-transplant-graft-dysfunction
#1
T D Domenico, G Joelsons, R M Montenegro, R C Manfro
We analyzed microRNA (miR)-142-3p expression in leucocytes of the peripheral blood and urinary sediment cell samples obtained from kidney transplant recipients who developed graft dysfunction. Forty-one kidney transplant recipients with kidney graft dysfunction and 8 stable patients were included in the study. The groups were divided according to histological analysis into acute rejection group (n=23), acute tubular necrosis group (n=18) and stable patients group used as a control for gene expression (n=8)...
April 3, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28366228/albuminuria-and-posttransplant-chronic-kidney-disease-stage-predict-transplant-outcomes
#2
Ngan N Lam, Marcello Tonelli, Krista L Lentine, Brenda Hemmelgarn, Feng Ye, Kevin Wen, Scott Klarenbach
In 2012, the KDIGO guidelines updated the classification system for chronic kidney disease to include albuminuria. Whether this classification system predicts adverse clinical outcomes among kidney transplant recipients is unclear. To evaluate this, we conducted a retrospective study using linked databases in Alberta, Canada to follow kidney transplant recipients from 2002-2011. We examined the association between an estimated glomerular filtration rate (eGFR of 60 or more, 45-59, 30-44, 15-29 mL/min/1.73 m(2)) and albuminuria (normal, mild, heavy) at one year post-transplant and subsequent mortality and graft loss...
March 30, 2017: Kidney International
https://www.readbyqxmd.com/read/28366944/transplantation-a-new-biomarker-for-transplant-rejection
#3
Shimona Starling
No abstract text is available yet for this article.
May 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28371433/urinary-markers-of-fibrosis-and-risk-of-cardiovascular-events-and-death-in-kidney-transplant-recipients-the-favorit-trial
#4
M Park, R Katz, M G Shlipak, D Weiner, R Tracy, V Jotwani, J Hughes-Austin, F Gabbai, C Y Hsu, M Pfeffer, N Bansal, A Bostom, O Gutierrez, M Sarnak, A Levey, J H Ix
Cardiovascular risk remains high in kidney transplant recipients (KTRs) despite improved kidney function after transplant. Urinary markers of kidney fibrosis and injury may help to reveal mechanisms of this risk. In a case-cohort study among stable KTRs who participated in the FAVORIT trial, we measured 4 urinary proteins known to correlate with kidney tubulointerstitial fibrosis on biopsy (urine alpha 1 microglobulin [α1m], monocyte chemoattractant protein-1 [MCP-1], procollagen type I [PINP] and type III [PIIINP] N-terminal amino peptide) and evaluated associations with cardiovascular disease (CVD) events (N=300) and death (N=371)...
March 29, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28360198/donor-recipient-weight-and-sex-mismatch-and-the-risk-of-graft-loss-in-renal-transplantation
#5
Amanda J Miller, Bryce A Kiberd, Ian P Alwayn, Ayo Odutayo, Karthik K Tennankore
BACKGROUND AND OBJECTIVES: Relatively smaller kidney donor to recipient size is proposed to result in higher graft loss due to nephron underdosing and hyperfiltration injury, but the potentially additive effect of sex and weight mismatch has not been explored in detail. The purpose of this study was to determine if concurrent donor and recipient absolute weight and sex mismatch was associated with graft loss in a cohort of deceased donor kidney transplant recipients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The association of kidney donor and recipient absolute weight and sex difference with death-censored graft loss was explored using a cohort of United States deceased donor recipients between 2000 and 2014 through the Scientific Registry of Transplants Recipients...
April 3, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28359537/macrophage-density-in-early-surveillance-biopsies-predicts-future-renal-transplant-function
#6
Jan Hinrich Bräsen, Abedalrazag Khalifa, Jessica Schmitz, Wei Dai, Gunilla Einecke, Anke Schwarz, Michael Hallensleben, Bernhard M W Schmidt, Hans H Kreipe, Hermann Haller, Sibylle von Vietinghoff
Inflammation impairs renal allograft survival but is difficult to quantify by eye at low densities. Here we measured leukocyte abundance in early surveillance biopsies by digital image analysis to test for a role of chemokine receptor genotypes and analyze the predictive value of leukocyte subsets to allograft function. In six-week surveillance biopsies, T-cell (CD3), B-cell (CD20), macrophage (CD68), and dendritic cell (CD209) densities were assessed in whole slide scans. Renal cortical CD3, CD20, and CD68 were significantly higher in histologic rejection...
March 27, 2017: Kidney International
https://www.readbyqxmd.com/read/28353491/nonprogrammed-vascular-access-is-associated-with-greater-mortality-in-patients-who-return-to-hemodialysis-with-a-failing-renal-graft
#7
Gustavo Laham, Gervasio Soler Pujol, Antonio Vilches, Ana Cusumano, Carlos Diaz
BACKGROUND: In incident hemodialysis (HD) patients the use of catheters is associated with a worse prognosis when compared to those with an arteriovenous fistula (AVF), but the role of vascular access (VA) type in the morbidity and mortality of patients returning to HD with a failing renal allograft is unknown. We aimed to determine the associations between the type of vascular access and mortality in this population. METHODS: This was a retrospective observational cohort study of 138 patients who initiated dialysis after kidney transplant failure between 1995 and 2014...
March 28, 2017: Transplantation
https://www.readbyqxmd.com/read/28346297/exposure-to-mycophenolate-and-fatherhood
#8
Karsten Midtvedt, Stein Bergan, Anna Varberg Reisæter, Bjørn Egil Vikse, Anders Åsberg
BACKGROUND: Mycophenolic acid (MPA) is the active immunosuppressive substance in both mycophenolate mofetil and mycophenolate sodium and it is widely used after organ transplantation. In females taking MPA is teratogenic and may also influence spermatogenesis. There is a lack of knowledge regarding outcome of pregnancies fathered by males exposed to MPA. METHODS: We compared outcomes in pregnancies fathered by renal transplant males per whether they had been exposed to MPA or not at time of conception...
March 22, 2017: Transplantation
https://www.readbyqxmd.com/read/28320531/global-trends-and-challenges-in-deceased-donor-kidney-allocation
#9
REVIEW
Diana A Wu, Christopher J Watson, J Andrew Bradley, Rachel J Johnson, John L Forsythe, Gabriel C Oniscu
Worldwide, the number of patients able to benefit from kidney transplantation is greatly restricted by the severe shortage of deceased donor organs. Allocation of this scarce resource is increasingly challenging and complex. Striking an acceptable balance between efficient use of (utility) and fair access to (equity) the limited supply of donated kidneys raises controversial but important debates at ethical, medical, and social levels. There is no international consensus on the recipient and donor factors that should be considered in the kidney allocation process...
March 17, 2017: Kidney International
https://www.readbyqxmd.com/read/28320767/comparing-outcomes-between-antibody-induction-therapies-in-kidney-transplantation
#10
Neel Koyawala, Jeffrey H Silber, Paul R Rosenbaum, Wei Wang, Alexander S Hill, Joseph G Reiter, Bijan A Niknam, Orit Even-Shoshan, Roy D Bloom, Deirdre Sawinski, Susanna Nazarian, Jennifer Trofe-Clark, Mary Ann Lim, Jesse D Schold, Peter P Reese
Kidney transplant recipients often receive antibody induction. Previous studies of induction therapy were often limited by short follow-up and/or absence of information about complications. After linking Organ Procurement and Transplantation Network data with Medicare claims, we compared outcomes between three induction therapies for kidney recipients. Using novel matching techniques developed on the basis of 15 clinical and demographic characteristics, we generated 1:1 pairs of alemtuzumab-rabbit antithymocyte globulin (rATG) (5330 pairs) and basiliximab-rATG (9378 pairs) recipients...
March 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28291767/new-dimensions-in-renal-transplant-sonography-applications-of-3-dimensional-ultrasound
#11
Susan J Frank, William R Walter, Larry Latson, Hillel W Cohen, Mordecai Koenigsberg
BACKGROUND: The aim of this study is to demonstrate the usefulness of adding 3-dimensional (3D) ultrasound in evaluation of renal transplant vasculature compared to 2-dimensional (2D) Duplex ultrasound. METHODS: One hundred thirteen consecutive renal transplant 2D and 3D ultrasound examinations were performed and retrospectively reviewed by 2 board-certified radiologists and a radiology resident individually; each reviewed 2D and then 3D images, including color and spectral Doppler...
April 21, 2016: Transplantation
https://www.readbyqxmd.com/read/28238223/glucose-lowering-agents-for-treating-pre-existing-and-new-onset-diabetes-in-kidney-transplant-recipients
#12
REVIEW
Clement Lo, Min Jun, Sunil V Badve, Helen Pilmore, Sarah L White, Carmel Hawley, Alan Cass, Vlado Perkovic, Sophia Zoungas
BACKGROUND: Kidney transplantation is the preferred form of kidney replacement therapy for patients with end-stage kidney disease (ESKD) and is often complicated by worsening or new-onset diabetes. Management of hyperglycaemia is important to reduce post-transplant and diabetes-related complications. The safety and efficacy of glucose-lowering agents after kidney transplantation is largely unknown. OBJECTIVES: To evaluate the efficacy and safety of pharmacological interventions for lowering glucose levels in patients who have undergone kidney transplantation and have diabetes...
February 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28257169/filtration-markers-cardiovascular-disease-mortality-and-kidney-outcomes-in-stable-kidney-transplant-recipients-the-favorit-trial
#13
M C Foster, D E Weiner, A G Bostom, M A Carpenter, L A Inker, P Jarolim, A A Joseph, J W Kusek, T Pesavento, M A Pfeffer, M Rao, S D Solomon, A S Levey
Cystatin C and beta-2-microglobulin (B2M) are filtration markers associated with adverse outcomes in nontransplant populations, sometimes with stronger associations than for creatinine. We evaluated associations of estimated glomerular filtration rate from cystatin C (eGFRcys ), B2M (eGFRB2M ), and creatinine (eGFRcr ) with cardiovascular outcomes, mortality, and kidney failure in stable kidney transplant recipients using a case-cohort study nested within the Folic Acid for Vascular Outcome Reduction in Transplantation (FAVORIT) Trial...
March 3, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28255002/antibody-mediated-rejection-due-to-preexisting-versus-de-novo-donor-specific-antibodies-in-kidney-allograft-recipients
#14
Olivier Aubert, Alexandre Loupy, Luis Hidalgo, Jean-Paul Duong van Huyen, Sarah Higgins, Denis Viglietti, Xavier Jouven, Denis Glotz, Christophe Legendre, Carmen Lefaucheur, Philip F Halloran
Antibody-mediated rejection (ABMR) can occur in patients with preexisting anti-HLA donor-specific antibodies (DSA) or in patients who develop de novo DSA. However, how these processes compare in terms of allograft injury and outcome has not been addressed. From a cohort of 771 kidney biopsy specimens from two North American and five European centers, we performed a systematic assessment of clinical and biologic parameters, histopathology, circulating DSA, and allograft gene expression for all patients with ABMR (n=205)...
March 2, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28235159/viva-espa%C3%A3-a-lessons-from-the-spanish-organ-donation-system
#15
LETTER
A Sharif
No abstract text is available yet for this article.
February 24, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28236638/patients-preferences-in-transplantation-from-marginal-donors-results-of-a-discrete-choice-experiment
#16
Sara Kamran, Filomena Conti, Marie-Pascale Pomey, Gabriel Baron, Yvon Calmus, Gwenaëlle Vidal-Trecan
To increase the donor pool, the strategy of transplantation from "marginal" donors was developed though patients' preferences about these donors were insufficiently known. The preferences of patients registered on the waiting list or already transplanted in eight transplant teams covering four main organs (i.e., kidney, liver, heart, and lung) were evaluated using the discrete choice experiment method. In each left during 2 days, patients were interviewed on four scenarios. Of 178 eligible patients, 167 were interviewed; 40% accepted marginal graft in their own situation and 89% at least in one of the scenarios...
February 25, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28212220/hcv-antiviral-therapy-in-liver-transplant-candidates-and-recipients-with-renal-insufficiency
#17
Elizabeth C Verna, Robert S Brown
Hepatitis C virus (HCV) remains the leading indication for liver transplant in much of the world, and has traditionally been associated with diminished posttransplant survival due to recurrent HCV-related liver disease. This field has been dramatically changed by the advent of safe and effective directly active antiviral (DAA) therapy, such that most patients can be cured in the pre or posttransplant setting. In addition, there are now DAA regimens specifically approved for use in patients with severe renal insufficiency...
February 16, 2017: Transplantation
https://www.readbyqxmd.com/read/28206633/risk-prediction-models-for-graft-failure-in-kidney-transplantation-a-systematic-review
#18
Rémi Kaboré, Maria C Haller, Jérôme Harambat, Georg Heinze, Karen Leffondré
Risk prediction models are useful for identifying kidney recipients at high risk of graft failure, thus optimizing clinical care. Our objective was to systematically review the models that have been recently developed and validated to predict graft failure in kidney transplantation recipients. We used PubMed and Scopus to search for English, German and French language articles published in 2005-15. We selected studies that developed and validated a new risk prediction model for graft failure after kidney transplantation, or validated an existing model with or without updating the model...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28176463/severe-chronic-norovirus-diarrheal-disease-in-transplant-recipients-clinical-features-of-an-under-recognized-syndrome
#19
Robin K Avery, Bonnie E Lonze, Edward S Kraus, Kieren A Marr, Robert A Montgomery
BACKGROUND: Norovirus (NV) infection has been reported as a cause of severe chronic diarrhea in transplant recipients, but this entity remains under-recognized in clinical practice, leading to diagnostic delays. Transplant clinicians should become familiar with this syndrome in order to facilitate early detection and management. METHODS: Demographic, clinical, and outcomes variables were summarized from a series of transplant recipients with positive stool NV reverse transcription polymerase chain reaction (RT-PCR) assays at Johns Hopkins in 2013-2014...
April 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28058212/complement-related-kidney-diseases-recurrence-after-transplantation
#20
REVIEW
Maurizio Salvadori, Elisabetta Bertoni
The recurrence of renal disease after renal transplantation is becoming one of the main causes of graft loss after kidney transplantation. This principally concerns some of the original diseases as the atypical hemolytic uremic syndrome (HUS), the membranoproliferative glomerulonephritis (MPGN), in particular the MPGN now called C3 glomerulopathy. Both this groups of renal diseases are characterized by congenital (genetic) or acquired (auto-antibodies) modifications of the alternative pathway of complement...
December 24, 2016: World Journal of Transplantation
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