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Acute kidney rejection

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https://www.readbyqxmd.com/read/28342287/longitudinal-evaluation-of-perfusion-changes-in-acute-and-chronic-renal-allograft-rejection-using-arterial-spin-labeling-in-translational-mouse-models
#1
Katja Hueper, Martina Schmidbauer, Anja Thorenz, Jan H Bräsen, Marcel Gutberlet, Michael Mengel, Dagmar Hartung, Rongjun Chen, Martin Meier, Hermann Haller, Frank Wacker, Song Rong, Faikah Gueler
PURPOSE: To examine the longitudinal changes of renal perfusion due to acute and chronic renal allograft rejection by using arterial spin labeling (ASL) MRI in translational mouse models of isogenic and allogenic kidney transplantation (ktx). MATERIALS AND METHODS: Acute rejection was induced by allogenic ktx of C57BL/6 (B6)-kidney grafts to BALB/c-recipients with prolonged cold ischemia (CIT) of 60 minutes (n = 13). To induce chronic rejection BALB/c-kidneys were transplanted into B6-recipients with short CIT of 30 minutes (n = 22)...
March 25, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28340885/immunosuppression-for-kidney-transplantation-where-are-we-now-and-where-are-we-going
#2
REVIEW
Mary Ann Lim, Jatinder Kohli, Roy D Bloom
Advances in immunosuppression have propelled kidney transplantation from a scientific curiosity to the optimal treatment for patients with end stage kidney disease. Declining rates of acute rejection have led to improvements in short term kidney transplant survival, culminating in incrementally better long term patient and allograft outcomes. Contextualized around established immune-suppressing drug targets, this review summarizes the history of the clinical science and highlights the pivotal trials that have led to present-day treatment standards at the level of both individual agents and multidrug regimens for kidney recipients...
January 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28340831/pregnancy-and-delivery-in-the-sequel-of-kidney-transplantation-single-center-study-of-8-years-experience
#3
Y Yuksel, S Tekin, D Yuksel, I Duman, M Sarier, L Yucetin, E Turan, H Celep, T Ugurlu, M M Inal, Y H Asuman, A Demirbas
BACKGROUND: Depending on hyphothalamic, hyphophyseal, and gonadal axis dysfunction, anovulatory irregular cycles occur and the probability of pregnancy decreases in the patients with chronic kidney disease (CKD). Maternal mortality and morbidity rates are increased in CKD patients; the risk of premature delivery is 70% and the risk of preeclampsia is 40% more than normal among those with a creatine level of >2.5 mg/dL. METHODS: If a pregnancy is expected in the sequel of kidney transplantation (KT), a multidisciplinary team approach should be adopted and both the gynecologist and the nephrologist should follow the patient simultaneously...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340820/role-of-everolimus-on-cardiac-functions-in-kidney-transplant-recipients
#4
U Cakir, G Alis, T Erturk, A H Karayagiz, U Karabulut, I Berber
BACKGROUND: Kidney transplantation is known to increase the survival of dialysis patients by ameloriating cardiac status, including both systolic and diastolic functions. We aimed to evaluate the role of immunosuppressive drug regimens on cardiac functions of kidney transplant recipients (KTRs). METHODS: We prospectively evaluated 120 KTRs immediately before and 1 year after the kidney transplantation, using tissue Doppler echocardiography. A triple immunosuppressive therapy including tacrolimus, mycophenoloic acid (MPA), and prednisolone was started for all patients...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340817/efficacy-and-safety-of-atg-fresenius-as-an-induction-agent-in-living-donor-kidney-transplantation
#5
M Yilmaz, T Ö Sezer, E Günay, I Solak, A Çeltik, C Hoşcoşkun, H Töz
BACKGROUND: Induction therapy is mostly recommended for deceased-donor transplantation, whereas it has some controversies in live-donor transplantation. In this study, we described the outcomes of live-donor renal transplant recipients who received ATG-Fresenius (ATG-F) induction. METHODS: Live-donor transplantations in patients over 18 years old with ATG-F induction between 2009 and 2015 were included. All patients received quadruple immunosuppression, one of which was ATG-F induction...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340806/average-tacrolimus-trough-level-in-the-first-month-after-transplantation-may-predict-acute-rejection
#6
S Aktürk, Ş Erdoğmuş, G Kumru, A H Elhan, Ş Şengül, A Tüzüner, K Keven
BACKGROUND: Although tacrolimus is one of the essential drugs used for the prevention of rejection in kidney recipients, target trough levels are not well established. In this study, we aimed to investigate the association between average tacrolimus trough levels (TTLs) of the first month after transplantation and biopsy-proven acute rejection (BPAR) during the first 12 months after transplant. METHODS: A total of 274 patients who underwent kidney-alone transplantation between 2002 and 2014 were enrolled in the study...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28339927/characterizing-the-early-inflammatory-contribution-of-the-donor-kidney-following-reperfusion
#7
John P Stone, Muna Mohamud, Kavit Amin, William R Critchley, Rebecca J Edge, Marc J Clancy, Alexandra L Ball, James E Fildes
Background.: Donor kidneys contain a large reservoir of passenger leucocytes that contribute to acute rejection via direct alloantigen presentation and pro-inflammatory cytokine secretion. However, the early contribution of these cells following revascularization has not previously been described. We performed a secondary, high-volume preservation flush following cold storage to characterize the inflammatory contribution of the donor kidney upon reperfusion. Methods.: Porcine kidneys were retrieved using a protocol analogous to current UK clinical practice...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28337883/evaluation-of-tolerance-and-safety-of-conversion-from-mycophenolate-mofetil-to-enteric-coated-mycophenolic-acid-in-renal-transplant-recipients
#8
L W Qiao, Q S Qu, X Jiang
This study was designed to evaluate the curative effect of conversion from mycophenolate mofetil (MMF) to enteric-coated mycophenolate sodium tablets (EC-MPS) and its safety. One hundred and twenty renal transplant recipients who developed MMF-associated chronic diarrhea were selected as research subjects and treated with EC-MPS. The patients were followed up for 12 months to compare the improvement of gastrointestinal symptoms and the indexes such as carbon dioxide combining power (CO2CP), serum sodium, serum potassium, serum creatinine (Scr) and 24-h urine protein before and after conversion treatment...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28332959/de-novo-donor-specific-antibody-formation-in-tacrolimus-based-mycophenolate-versus-mammalian-target-of-rapamycin-immunosuppressive-regimens
#9
Zain Mithani, Jane Gralla, Oluwafisayo Adebiyi, Patrick Klem, James E Cooper, Alexander C Wiseman
OBJECTIVES: De novo donor-specific antibody formation posttransplant is associated with decreased graft survival. It is not known whether mammalian target of rapamycin inhibitors may be advantageous or detrimental compared with mycophenolate in the prevention of de novo donor-specific antibody formation. MATERIALS AND METHODS: We compared 66 kidney and kidney-pancreas transplant recipients who received tacrolimus, mammalian target of rapamycin inhibitor, and prednisone (group 1; 36 of whom received everolimus and 30 of whom received sirolimus) versus 132 patients who received tacrolimus, mycophenolate, and prednisone (group 2) matched for age, sex, race, and type/timing of transplant from 2007 to 2012...
March 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28332287/pretransplant-numbers-of-cd16-monocytes-as-a-novel-biomarker-to-predict-acute-rejection-after-kidney-transplantation-a-pilot-study
#10
Thierry P P van den Bosch, Luuk B Hilbrands, Rens Kraaijeveld, Nicolle H R Litjens, Farhad Rezaee, Daan Nieboer, Ewout W Steyerberg, Judith A van Gestel, Dave L Roelen, Marian C Clahsen-van Groningen, Carla C Baan, Ajda T Rowshani
Acute rejection is one of the major immunological determinants of kidney graft function and survival. Early biomarkers to predict rejection are lacking. Emerging evidence reveals a crucial role for the monocyte-macrophage lineage cells in the pathogenesis of rejection. We hypothesized that higher pre-transplant numbers of proinflammatory CD16+ monocytes can predict rejection. The study cohort consisted of 104 kidney transplant recipients (58 no-rejections and 46 biopsy-proven rejections), and 33 healthy individuals...
March 23, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28331864/cytopenia-occurrence-in-kidney-transplant-recipients-within-early-post-transplant-period
#11
Atefeh Jafari, Parisa Najivash, Mohammad-Reza Khatami, Simin Dashti-Khavidaki
OBJECTIVE: This study assessed incidence, severity, and time to occurrence of drug-induced leukopenia/thrombocytopenia within 1(st) month after kidney transplantation. METHODS: This cross-sectional study was conducted on newly kidney transplant recipients from two hospitals, Iran. Patients with thrombocytopenia due to acute antibody-mediated rejection were excluded from the study. Demographic, clinical, and laboratory data of patients within the 1(st) month after transplantation were collected...
January 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/28331179/hyperosmolarity-impedes-the-cross-priming-competence-of-dendritic-cells-in-a-trif-dependent-manner
#12
Zoran V Popovic, Maria Embgenbroich, Federica Chessa, Viola Nordström, Mahnaz Bonrouhi, Thomas Hielscher, Norbert Gretz, Shijun Wang, Daniel Mathow, Thomas Quast, Jan-Gero Schloetel, Waldemar Kolanus, Sven Burgdorf, Hermann-Josef Gröne
Tissue osmolarity varies among different organs and can be considerably increased under pathologic conditions. Hyperosmolarity has been associated with altered stimulatory properties of immune cells, especially macrophages and dendritic cells. We have recently reported that dendritic cells upon exposure to hypertonic stimuli shift their profile towards a macrophage-M2-like phenotype, resulting in attenuated local alloreactivity during acute kidney graft rejection. Here, we examined how hyperosmotic microenvironment affects the cross-priming capacity of dendritic cells...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28326855/impact-of-postoperative-pulmonary-hypertension-on-outcome-after-heart-transplantation
#13
Jakob Lundgren, Carl Söderlund, Göran Rådegran
OBJECTIVES: We wanted to investigate the effects of postoperative pulmonary hypertension (PHpostop: mean pulmonary artery pressure [MPAP] ≥ 25 mmHg), diastolic pressure gradient (DPG), pulmonary vascular resistance (PVR), and repeated hemodynamic measurements on long-term survival after heart transplantation (HT). DESIGN: Eighty-nine patients who underwent HT at Skåne University Hospital in Lund in the period 1988-2010 and who were evaluated with right-heart-catheterization at rest, prior to HT and repeatedly during the first postoperative year, were grouped based on their MPAP, DPG, and PVR...
March 22, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28323892/impact-of-abo-incompatible-kidney-transplantation-on-living-donor-transplantation
#14
Ji Hyun Yu, Byung Ha Chung, Chul Woo Yang
BACKGROUND: ABO incompatible kidney transplantation (ABOi-KT) is an important approach for overcoming donor shortages. We evaluated the effect of ABOi-KT on living donor KT. METHODS: Two nationwide transplantation databases were used. We evaluated the impact of ABOi-KT on overall living donor transplant activity and spousal donation as subgroup analysis. In addition, we compared the clinical outcome between ABOi-KT and ABO compatible KT (ABOc-KT) from spousal donor, and performed a Cox proportional hazards regression analysis to define the risk factors affecting the allograft outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28321326/first-canadian-case-report-of-kidney-transplantation-from-an-hiv-positive-donor-to-an-hiv-positive-recipient
#15
Georges Ambaraghassi, Héloïse Cardinal, Daniel Corsilli, Claude Fortin, Marie-Chantal Fortin, Valérie Martel-Laferrière, Jacques Malaise, Michel R Pâquet, Danielle Rouleau
RATIONALE: Kidney transplantation has become standard of care for carefully selected patients living with human immunodeficiency virus (HIV) and end-stage renal disease (ESRD) in the highly active antiretroviral therapy (HAART) era. American and European prospective cohort studies have reported similar patient and graft survival compared with HIV-negative kidney transplant recipients. Despite an increased rate of acute rejection, partially due to drug interactions, HIV immunovirologic parameter generally remains under control during immunosuppression...
2017: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/28316087/influence-of-abcc2-cyp2c8-and-cyp2j2-polymorphisms-on-tacrolimus-and-mycophenolate-sodium-based-treatment-in-brazilian-kidney-transplant-recipients
#16
Fabiana D V Genvigir, Alvaro M Nishikawa, Claudia R Felipe, Helio Tedesco-Silva, Nagilla Oliveira, Antony B C Salazar, Jose O Medina-Pestana, Sonia Q Doi, Mario H Hirata, Rosario D C Hirata
STUDY OBJECTIVE: To investigate the influence of single nucleotide polymorphisms (SNPs) in genes encoding metabolizing enzymes (CYP2C8, CYP2J2, and UGT2B7) and transporters (ABCC2 and ABCG2) on dose and/or dose-adjusted trough blood concentrations (C/D ratio), clinical outcomes, and occurrence of adverse events of tacrolimus and mycophenolate sodium in Brazilian kidney transplant recipients. DESIGN: Pharmacogenetic analysis of patients enrolled in a previously published study...
March 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28302440/kidney-allograft-pyelonephritis-caused-by-salmonella-enterica-serovar-schwarzengrund
#17
Kenta Ito, Haruomi Nishio, Yuji Iwatani, Ryo Yamada, Takao Okawa, Takumi Yamamoto, Masaaki Murakami, Yoko Matsuo, Ken Matsuo, Satoshi Tanaka, Kiyoshi Mori, Noriko Mori
Kidney transplant recipients (KTRs) taking immunosuppressive drugs have a 20-fold greater risk of nontyphoidal Salmonella (NTS) infection than the healthy adult population. Among KTRs, the urinary tract is the most common site of infection. However, few cases of urinary tract infection caused by NTS have been documented in KTRs, and only one in Japan. Furthermore, it frequently induces acute allograft rejection with high mortality. Salmonella enterica subsp. enterica serovar Schwarzengrund (S. Schwarzengrund) is now among the more common Salmonella serovars isolated in Japan and is likely to be invasive...
March 13, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28299024/plasma-neutrophil-gelatinase-associated-lipocalin-as-a-marker-for-prediction-of-3-month-graft-survival-after-kidney-transplantation
#18
A Jafari, M R Khatami, S Dashti-Khavidaki, M Lessan-Pezeshki, A Abdollahi
BACKGROUND: Ischemic injury during organ transplantation increases the risk of acute and chronic rejections by promoting alloimmune responses. Measurement of neutrophil gelatinase-associated lipocalin (NGAL) immediately after kidney transplantation may be promising for early detection of ischemic injuries to allograft. OBJECTIVE: This study assessed possible predictive values of plasma NGAL levels during first hours after kidney transplantation for graft loss within the first 3 months after transplantation...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28296035/sepsis-after-renal-transplantation-clinical-immunological-and-microbiological-risk-factors
#19
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/28293239/major-histocompatibility-complex-class-i-chain-related-a-mica-molecules-relevance-in-solid-organ-transplantation
#20
REVIEW
Ajay Kumar Baranwal, Narinder K Mehra
An ever growing number of reports on graft rejection and/or failure even with good HLA matches have highlighted an important role of non-HLA antigens in influencing allograft immunity. The list of non-HLA antigens that have been implicated in graft rejection in different types of organ transplantation has already grown long. Of these, the Major Histocompatibility Complex class I chain-related molecule A (MICA) is one of the most polymorphic and extensively studied non-HLA antigenic targets especially in the kidney transplantation...
2017: Frontiers in Immunology
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